PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
AHRF Series RoHS
Description
The AHRF Series is a PPTC resettable device designed
specifically for the automotive industry. It is a 16V
high-temperature, lead-free, radial leaded resettable
device that meets Littelfuse’s Automotive qualification.
This qualification is based on AEC-Q200: Stress Test
Qualification for Passive Components.
Applications
• Motor and motor circuit protection including power door-
locks, mirrors, lumbar umps, seats, sunroofs and windows
• Electronic Control Unit (ECU) I/O protection
• Heating, Ventilation and Cooling (HVAC) motor and
I/O protection
• Telematics, infotainment and navigations systems
• Liquid Crystal Display (LCD) back-light heaters
• Power and cigarette lighter outlets, plugs and adapter/chargers
• Powered networks and buses
• Air-flow detection and overcurrent protection in HVAC
and cooling fan systems
• Stall detection in express window and sunroof circuits
• Resettable overcurrent protection for power distribution,
electrical centers and junction boxes
• Wire downsizing
• Motor electromagnetic interference (EMI) suppression
• Electrostatic discharge (ESD) damage protection
• Load dump and other transient voltage protection
Features
• Overcurrent and overvoltage circuit protection devices
• Resettable and single-use overcurrent devices
• Wide range of form factor and termination methods
• Products meet applicable automotive industry standards
• Devices compatible with high-volume electronics
assembly
• RoHS compliant, Lead-Free and Halogen-Free
Electrical Characteristics
Part
Number
IH(A)@ IH(A)@ ITVMAX IMAX PD Typ Max Time-to-trip RMIN RMAX R1MAX Lead Size
(mm2/AWG)
(R1MAX) (RaMAX) (A) (VDC) (A) (W) (A) (s) (Ω) (Ω) (Ω)
AHRF (High Temperature) – 30V
AHRF050 0.5 0.5 1. 0 30 40 0.9 2.5 3.0 0.3500 1. 10 0 1. 10 0 0.205/24
AHRF070 0.7 0.7 1. 4 30 40 1. 4 3.5 3.2 0.2300 0.800 0.800 0.205/24
AHRF100 1. 0 1. 0 1. 9 30 40 1. 4 5.0 6.2 0.1500 0.430 0.430 0.205/24
Notes:
IH : Hold current: maximum current device will pass without interruption in 25°C,
unless otherwise specified.
IT : Trip current: minimum current that will switch the device from low-resistance to
high-resistance in 25°C still air, unless otherwise specified.
VMAX : Maximum voltage device can withstand without damage at rated current.
IMAX : Maximum fault current device can withstand without damage at rated voltage.
PD : Power dissipated from device when in the tripped state in 25°C still air,
unless otherwise specified.
RMIN : Minimum resistance of device as supplied at 25°C, unless otherwise specified.
R1MAX : Maximum resistance of device when measured one hour post trip at 25°C unless
otherwise specified.
RaMAX : Maximum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
RaMIN :
Minimum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
* Electrical characteristics determined at 25°C.
Additional Information
Datasheet Resources Samples
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Electrical Characteristics (Cont’d)
Part
Number
IH(A)@ IH(A)@ ITVMAX IMAX PD Typ Max Time-to-trip RMIN RMAX R1MAX Lead Size
(mm2/AWG)
(R1MAX) (RaMAX) (A) (VDC) (A) (W) (A) (s) (Ω) (Ω) (Ω)
AHRF (High Temperature) – 16V
AHRF200 2.0 2.0 3.8 16 10 0 1. 4 10.0 4.8 0.0390 0.1100 0.1100 0.205/24
AHRF300 3.0 3.0 6.5 16 10 0 3.0 15.0 5.0 0.0290 0.0790 0.0790 0.52/20
AHRF400 4.0 4.0 7. 4 16 100 3.3 20.0 5.0 0.0210 0.0600 0.0600 0.52/20
AHRF450 4.5 4.5 8.7 16 100 3.6 22.5 4.0 0.0170 0.0540 0.0540 0.52/20
AHRF550 5.5 5.5 10.0 16 100 3.5 27.5 6.0 0.0130 0.0370 0.0370 0.52/20
AHRF600 6.0 6.0 12.0 16 100 4.1 30.0 6.5 0.0100 0.0320 0.0320 0.52/20
AHRF650 6.5 6.5 13.7 16 100 4.3 32.5 7. 0 0.0090 0.0260 0.0260 0.52/20
AHRF700 7. 0 7. 0 13.1 16 100 4.0 35.0 7. 0 0.0087 0.0250 0.0250 0.52/20
AHRF750 7. 5 7. 5 14.8 16 100 4.5 37.5 8.0 0.0074 0.0220 0.0220 0.52/20
AHRF800 8.0 8.0 15.0 16 100 4.2 40.0 8.0 0.0072 0.0200 0.0200 0.52/20
AHRF900 9.0 9.0 18.5 16 10 0 5.0 45.0 11. 5 0.0061 0.0170 0.0170 0.52/20
AHRF1000 10.0 10.0 20.5 16 100 5.3 50.0 10.5 0.0051 0.0150 0.0150 0.52/20
AHRF1100 11. 0 11. 0 21.2 16 100 5.5 55.0 11. 0 0.0048 0.0130 0.0130 0.52/20
AHRF1300 13.0 13.0 27.0 16 100 6.9 65.0 15.0 0.0034 0.0100 0.0100 0.82/18
AHRF1400 14.0 14.0 28.3 16 100 6.9 70.0 15.5 0.0029 0.0090 0.0090 0.82/18
AHRF1500 15.0 15.0 33.0 16 100 7. 0 75.0 20.0 0.0027 0.0092 0.0092 0.82/18
Notes:
IH : Hold current: maximum current device will pass without interruption in 25°C,
unless otherwise specified.
IT : Trip current: minimum current that will switch the device from low-resistance to
high-resistance in 25°C still air, unless otherwise specified.
VMAX : Maximum voltage device can withstand without damage at rated current.
IMAX : Maximum fault current device can withstand without damage at rated voltage.
PD : Power dissipated from device when in the tripped state in 25°C still air,
unless otherwise specified.
RMIN : Minimum resistance of device as supplied at 25°C, unless otherwise specified.
R1MAX : Maximum resistance of device when measured one hour post trip at 25°C unless
otherwise specified.
RaMAX : Maximum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
RaMIN :
Minimum functional resistance of device after being subjected to the stresses
described in PS400 at 25°C, unless otherwise specified.
* Electrical characteristics determined at 25°C.
Typical Time-to-Trip Curves at 25°C
AHRF
A = AHRF050
B = AHRF070
C = AHRF100
D = AHRF200
E = AHRF300
F = AHRF400
G = AHRF450
H = AHRF550
I = AHRF600
J = AHRF650
K = AHRF700
L = AHRF750
M = AHRF800
N = AHRF900
O = AHRF1000
P = AHRF1100
Q = AHRF1300
R = AHRF1400
S = AHRF1500
Time-to-Trip (s)
Fault Current (A)
1000
100
10
1
0.10
0.01 11
01
00
A
A
B
CDEFGHIJKLMNOP QRS
BC DE
G
F
H
I
J
K
L
M
O
P
Q
R
S
N
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Temperature Rerating
Maximum Ambient Temperature
-40°C -20°C 0°C 20°C 25°C 40°C 50°C 60°C 70°C 85°C 125°C
Hold Current (A)
AHRF (High Temperature) – 30V
AHRF050 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.1
AHRF070 1. 0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.2
AHRF100 1. 4 1. 2 1. 1 1. 0 1. 0 0.9 0.8 0.7 0.7 0.6 0.2
AHRF (High Temperature) – 16V
AHRF200 2.7 2.5 2.3 2.1 2.0 1. 8 1. 6 1. 5 1. 3 1. 1 0.5
AHRF300 4.1 3.7 3.4 3.1 3.0 2.7 2.4 2.2 2.0 1. 7 0.7
AHRF400 5.6 5.1 4.7 4.2 4.0 3.6 3.3 3.0 2.7 2.3 1. 0
AHRF450 6.1 5.6 5.1 4.6 4.5 4.0 3.6 3.3 3.0 2.5 1. 1
AHRF550 7. 5 6.9 6.2 5.7 5.5 4.9 4.4 4.0 3.7 3.1 1. 4
AHRF600 8.2 7. 5 6.8 6.2 6.0 5.3 4.9 4.4 4.0 3.3 1. 5
AHRF650 8.8 8.1 7. 4 6.7 6.5 5.7 5.3 4.8 4.3 3.6 1. 6
AHRF700 9.5 8.7 8.0 7. 2 7. 0 6.2 5.6 5.2 4.7 3.9 1. 7
AHRF750 10.2 9.4 8.6 7. 7 7. 5 6.6 6.1 5.6 5.0 4.1 1. 9
AHRF800 10.9 10.0 9.1 8.2 8.0 7. 1 6.4 5.9 5.3 4.4 2.0
AHRF900 12.2 11. 2 10.2 9.3 9.0 8.0 7. 2 6.6 6.0 5.0 2.2
AHRF1000 13.6 12.5 11. 4 10.3 10.0 8.8 8.1 7. 4 6.6 5.5 2.5
AHRF1100 14.9 13.7 12.5 11. 3 11. 0 9.7 8.8 8.1 7. 3 6.1 2.7
AHRF1300 1 7. 7 16.3 14.8 13.4 13.0 11. 4 10.5 9.6 8.6 7. 2 3.3
AHRF1400 19.0 1 7. 5 15.9 14.4 14.0 12.4 11. 2 10.3 9.3 7. 8 3.5
AHRF1500 20.4 18.8 1 7. 1 15.5 15.0 13.2 12.1 11. 1 9.9 8.3 3.8
% of Rated Hold and Trip Current
Ambient Temperature (˚C)
200
150
100
50
0
-40 -20 020406080100 120
Temperature Rerating Curve
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Temperature Rerating
Maximum Ambient Temperature
-40°C -20°C 0°C 20°C 25°C 40°C 50°C 60°C 70°C 85°C 125°C
Hold Current (A)
AHRF (High Temperature) – 30V
AHRF050 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.1
AHRF070 1. 0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.2
AHRF100 1. 4 1. 2 1. 1 1. 0 1. 0 0.9 0.8 0.7 0.7 0.6 0.2
AHRF (High Temperature) – 16V
AHRF200 2.7 2.5 2.3 2.1 2.0 1. 8 1. 6 1. 5 1. 3 1. 1 0.5
AHRF300 4.1 3.7 3.4 3.1 3.0 2.7 2.4 2.2 2.0 1. 7 0.7
AHRF400 5.6 5.1 4.7 4.2 4.0 3.6 3.3 3.0 2.7 2.3 1. 0
AHRF450 6.1 5.6 5.1 4.6 4.5 4.0 3.6 3.3 3.0 2.5 1. 1
AHRF550 7. 5 6.9 6.2 5.7 5.5 4.9 4.4 4.0 3.7 3.1 1. 4
AHRF600 8.2 7. 5 6.8 6.2 6.0 5.3 4.9 4.4 4.0 3.3 1. 5
AHRF650 8.8 8.1 7. 4 6.7 6.5 5.7 5.3 4.8 4.3 3.6 1. 6
AHRF700 9.5 8.7 8.0 7. 2 7. 0 6.2 5.6 5.2 4.7 3.9 1. 7
AHRF750 10.2 9.4 8.6 7. 7 7. 5 6.6 6.1 5.6 5.0 4.1 1. 9
AHRF800 10.9 10.0 9.1 8.2 8.0 7. 1 6.4 5.9 5.3 4.4 2.0
AHRF900 12.2 11. 2 10.2 9.3 9.0 8.0 7. 2 6.6 6.0 5.0 2.2
AHRF1000 13.6 12.5 11. 4 10.3 10.0 8.8 8.1 7. 4 6.6 5.5 2.5
AHRF1100 14.9 13.7 12.5 11. 3 11. 0 9.7 8.8 8.1 7. 3 6.1 2.7
AHRF1300 1 7. 7 16.3 14.8 13.4 13.0 11. 4 10.5 9.6 8.6 7. 2 3.3
AHRF1400 19.0 1 7. 5 15.9 14.4 14.0 12.4 11. 2 10.3 9.3 7. 8 3.5
AHRF1500 20.4 18.8 1 7. 1 15.5 15.0 13.2 12.1 11. 1 9.9 8.3 3.8
Part Ordering Number System
AHRF 800 -2
Packaging Option
(Blank) = Bulk
2 = Tape and Reel Packaging
AP = Ammo Pack
Hold Current Indicator
Product Series
An “F” at the End of the Series Indicates Pb-free Version of Product
Physical Specifications
Lead Material
AHRF050 to AHRF200 : Tin-plated Copper-clad Steel, 0.205mm2 (24 AWG), ø 0.51mm/0.020in
AHRF300 to AHRF1100 : Tin-plated Copper 0.52mm2 (20 AWG), ø 0.81mm/0.032in
AHRF1300 to AHRF1500 : Tin-plated Copper 0.82mm2 (18 AWG), ø 1.0mm/0.04in
Soldering Characteristics Solderability per ANSI/J-STD 002 Category 3
Solder Heat Withstand Per IEC 68-2-20, Test Tb, Method 1a, Condition b; Can Withstand 10 s at 260°C ± 5°C
Insulating Material Cured, Flame-retardant Epoxy Polymer; Meets UL 94V-0 Requirements
Operation Temperature -40°C~125°C
Note: See PS400 for other physical characteristics.
Devices are not designed to be placed through a reflow process.
Environmental Specifications
Test Conditions Resistance Change
Passive Aging 70°C, 1000 hrs
85°C, 1000 hrs
±5%
±5%
Humidity Aging 85°C, 85% R.H., 1000 hrs ±5%
Thermal Shock 125°C, -40°C 10 times ±5%
Solvent Resistance MIL-STD-202, Method 215F No change
Note: See PS400 for other environmental specifications.
Moisture Resistance Level Level 1, J-STD-020
Storage Conditions 40°C max, 70% RH max; devices should remain in original sealed bags prior to use.
Devices may not meet specified values if these storage conditions are exceeded.
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Dimensions
Part
Number
Dimensions in Millimeters (Inches)
FigureA B C D E F G H J
Min Max Min Max Min Max Min Max Min Max Min Max Min Max Ty p Ty p
AHRF (High Temperature) – 30V
AHRF050 —7.4 —12.7 4.3 5.8 7.6 — —3.3 1.2 — — — 1.24 1.6 2,4,5
(0.29) (0.50) (0.17) (0.23) (0.30) (0.13) (0.05) (0.049) (0.06)
AHRF070 —6.9 —10.8 4.3 5.8 7.6 — — 3.3 1.2 — — — 1.24 1.6 3,4,5
(0.27) (0.43) (0.17) (0.23) (0.30) (0.13) (0.05) (0.049) (0.06)
AHRF100 —9.7 —13.6 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 2,4,5
(0.38) (0.54) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF (High Temperature) – 16V
AHRF200 —9.4 —14.4 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 2,4,5
(0.37) (0.57) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF300 —8.8 —13.8 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 1,4,5
(0.35) (0.55) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF400 —10.0 —15.0 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 1,4,5
(0.39) (0.59) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF450 —10.4 —15.6 4.3 5.8 7.6 — —3.0 1.2 — — 3.94 1.24 1.6 1,4,5
(0.41) (0.61) (0.17) (0.23) (0.30) (0.12) (0.05) (0.155) (0.049) (0.06)
AHRF550 —11.2 —18.9 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 1,4,5
(0.44) (0.74) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF600 —11.2 —21.0 4.3 5.8 7.6 — — 3.0 1.2 — — 4.49 1.24 1.7 1,4,5
(0.44) (0.73) (0.17) (0.23) (0.30) (0.12) (0.05) (0.177) (0.049) (0.07)
Figure 4
Figure 5
Figure 1 Figure 2 Figure 3
Dimension Figures
J
J
A
E
C
H
A
B
D
CF
C
LC
LC
LC
L
B
D
C
G
F
C
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LC
LC
L
AE
E
B
FBG
A
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CC
F
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H
A
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D
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F
H
A
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J
J
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C
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A
B
D
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LC
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E(x2)
F
H
A
I
C
AB
ED
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Dimensions (Cont’d)
Part
Number
Dimensions in Millimeters (Inches)
FigureA B C D E F G H J
Min Max Min Max Min Max Min Max Min Max Min Max Min Max Ty p Ty p
AHRF (High Temperature) – 16V
AHRF650 —12.7 —22.2 4.3 5.8 7.6 — —3.0 1.2 — — 5.08 1.24 1.8 1,4,5
(0.50) (0.88) (0.17) (0.23) (0.30) (0.12) (0.05) (0.200) (0.049) (0.07)
AHRF700 —14.0 —21.9 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 1,4,5
(0.55) (0.86) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF750 —14.0 —23.5 4.3 5.8 7.6 — — 3.0 1.2 — — 5.69 1.24 2.0 1,4,5
(0.55) (0.93) (0.17) (0.23) (0.30) (0.12) (0.05) (0.224) (0.049) (0.08)
AHRF800 —16.5 —22.5 4.3 5.8 7.6 — —3.0 1.2 — — — 1.24 1.6 1,4,5
(0.65) (0.88) (0.17) (0.23) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF900 —16,5 —25.7 4.3 5.8 7.6 — — 3.0 1.2 — — — — — 1,4,5
(0.65) (1.01) (0.17) (0.23) (0.30) (0.12) (0.05)
AHRF1000 —17.5 —26.5 9.4 10.9 7.6 — —3.0 1.2 — — 7.47 1.24 1.5 1,4,5
(0.69) (1.04) (0.37) (0.43) (0.30) (0.12) (0.05) (0.294) (0.049) (0.06)
AHRF1100 —21.0 —26.1 9.4 10.9 7.6 — —3.0 1.2 — — —1.24 1.6 1,4,5
(0.83) (1.03) (0.37) (0.43) (0.30) (0.12) (0.05) (0.049) (0.06)
AHRF1300 —23.5 —28.7 9.4 10.9 7.6 — —3.5 1.4 — — 7.82 1.45 1.9 1,4,5
(0.925) (1.13) (0.37) (0.43) (0.30) (0.14) (0.06) (0.308) (0.057) (0.08)
AHRF1400 —23.5 —28.7 9.4 10.9 7.6 — —3.6 1.4 — — —1.24 1.6 1,4,5
(0.93) (1.13) (0.37) (0.43) (0.30) (0.14) (0.06) (0.049) (0.06)
AHRF1500 —23.5 —28.7 9.4 10.9 7.6 — — 3.5 1.4 — —7.82 — — 1,4,5
(0.93) (1.13) (0.37) (0.43) (0.30) (0.14) (0.06) (0.308)
Figure 4
Figure 5
Figure 1 Figure 2 Figure 3
Dimension Figures
J
J
A
E
C
H
A
B
D
CF
C
LC
LC
LC
L
B
D
C
G
F
C
LC
LC
LC
L
AE
E
B
FBG
A
DE
CC
F
A
D
H
E
A
B
D
C
Cto
LC
L
E
B
D
CF
Cto
LC
L
AE
F
C
LC
LC
LC
L
D
G
CBF
H
A
I
E(x2)
D
G
C
B
E(x2)
F
H
A
I
C
AB
ED
J
J
A
E
C
H
A
B
D
CF
C
LC
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PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Packaging and Marking Information
Part
Number
Bag
Quantity
Tape and Reel
Quantity
Ammo Pack
Quantity
Standard Package
Quantity
Part
Marking
Agency
Recognition
AHRF (High Temperature)
AHRF050 500 — — 10,000 H0.5 *
AHRF050-2 — 2,500 — 12,500 H0.5 *
AHRF050-AP — — 2,500 12,500 H0.5 *
AHRF070 500 — — 10,000 H0.7 *
AHRF070-2 — 2,500 — 12,500 H0.7 *
AHRF070-AP — — 2,500 12,500 H0.7 *
AHRF100 500 — — 10,000 H1 *
AHRF100-2 — 2,500 — 12,500 H1 *
AHRF100-AP — — 2,500 12,500 H1 *
AHRF200 500 — — 10,000 H2 *
AHRF200-2 — 2,500 — 12,500 H2 *
AHRF200-AP — — 2,500 12,500 H2 *
AHRF300 500 — — 10,000 H3 *
AHRF300-2 — 2,000 — 10,000 H3 *
AHRF300-AP — — 2,000 10,000 H3 *
AHRF400 500 — — 10,000 H4 *
AHRF400-2 — 1,500 — 7,500 H4 *
AHRF400-AP — — 1,500 7,500 H4 *
AHRF450 500 — — 10,000 H4.5 *
AHRF450-2 — 1,500 — 7,500 H4.5 *
AHRF450-AP — — 1,500 7,500 H4.5 *
AHRF550 500 — — 10,000 H5.5 *
AHRF550-2 — 2,000 — 10,000 H5.5 *
AHRF550-AP — — 2,000 10,000 H5.5 *
AHRF600 500 — — 10,000 H6 *
AHRF600-2 — 2,000 — 10,000 H6 *
AHRF600-AP — — 2,000 10,000 H6 *
AHRF650 500 — — 10,000 H6.5 *
AHRF650-2 — 1,500 — 7,500 H6.5 *
AHRF650-AP — — 1,500 7,500 H6.5 *
*These devices are intended for use in automotive applications.
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Packaging and Marking Information (Cont’d)
Part
Number
Bag
Quantity
Tape and Reel
Quantity
Ammo Pack
Quantity
Standard Package
Quantity
Part
Marking
Agency
Recognition
AHRF (High Temperature)
AHRF700 500 — — 10,000 H7 *
AHRF700-2 — 1,500 — 7,500 H7 *
AHRF700-AP — — 1,500 7,500 H7 *
AHRF750 500 — — 10,000 H7.5 *
AHRF750-2 — 1,000 — 5,000 H7.5 *
AHRF750-AP — — 1,000 5,000 H7.5 *
AHRF800 500 — — 10,000 H8 *
AHRF800-2 — 1,000 — 5,000 H8 *
AHRF800-AP — — 1,000 5,000 H8 *
AHRF900 250 — — 5,000 H9 *
AHRF900-2 — 1,000 — 5,000 H9 *
AHRF900-AP — — 1,000 5,000 H9 *
AHRF1000 250 — — 5,000 H10 *
AHRF1000-2 — 1,000 — 5,000 H10 *
AHRF1000-AP — — 1,000 5,000 H10 *
AHRF1100 250 — — 5,000 H 11 *
AHRF1100-2 — 1,000 — 5,000 H 11 *
AHRF1100-AP — — 1,000 5,000 H 11 *
AHRF1300 250 — — 5,000 H13 *
AHRF1300-2 — 1,000 — 5,000 H13 *
AHRF1300-AP — — 1,000 5,000 H13 *
AHRF1400 250 — — 5,000 H14 *
AHRF1400-2 — 1,000 — 5,000 H14 *
AHRF1400-AP — — 1,000 5,000 H14 *
AHRF1500 250 — — 5,000 H15 *
AHRF1500-2 — 1,000 — 5,000 H15 *
AHRF1500-AP — — 1,000 5,000 H15 *
*These devices are intended for use in automotive applications.
PolySwitch® Resettable PPTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Tape and Reel Specifications
AHRF devices are available in tape and reel packaging per EIA468-B/IEC286-2 and EIA 481-2 standards.
See Figures 1 and 2 for details.
Description EIA Mark Dimension (mm) Tolerance
Carrier Tape Width W 18.0 -0.5/+1.0
Hold Down Tape Width W411. 0 Minimum
Top Distance between Tape Edges W63.0 Maximum
Sprocket Hole Position W59.0 -0.5/+0.75
Sprocket Hole Diameter D04.0 ±0.2
Abscissa to Plane (Kinked Lead) (AHRF050 to AHRF1500) H016.0 ±0.5
Abscissa to Top (AHRF050 to AHRF450) H132.2 Maximum
Abscissa to Top (AHRF550 to AHRF1500*) H145.0 Maximum
Overall Width with Lead Protrusion (AHRF050 to AHRF450) C143.2 Maximum
Overall Width with Lead Protrusion (AHRF550 to AHRF1500) C155.0 Maximum
Overall Width without Lead Protrusion (AHRF050 to AHRF450) C242.5 Maximum
Overall Width without Lead Protrusion (AHRF550 to AHRF1500) C254.0 Maximum
Lead Protrusion L11. 0 Maximum
Protrusion of Cut-out L 11. 0 Maximum
Protrusion Beyond Hold-Down Tape I2Not specified —
Sprocket Hole Pitch P012.7 ± 0.3
Device Pitch (AHRF050 to AHRF600) — 12.7 ± 0.3
Device Pitch (AHRF650 to AHRF1500) — 25.4 ± 0.6
Pitch Tolerance — 20 consec. ± 0.1
Tape Thickness t 0.9 Maximum
Overall Tape and Lead Thickness (AHRF050 to AHRF1100*) t12.0 Maximum
Overall Tape and Lead Thickness (AHRF1300 to AHRF1500*) t12.3 Maximum
Splice Sprocket Hole Alignment — 0 ± 0.3
Body Lateral Deviation h 0 ± 1.0
Body Tape Plane Deviation p 0 ± 1.3
Ordinate to Adjacent Component Lead (AHRF050 to AHRF900) P13.81 ± 0.7
Ordinate to Adjacent Component Lead (AHRF1000 to AHRF1500) P17.62 ± 0.7
Lead Spacing (AHRF050 to AHRF900*) F 5.05 ± 0.75
Lead Spacing (AHRF1000 to AHRF1500*) F 10.15 ± 0.75
Reel Width (AHRF050 to AHRF450) w256.0 Maximum
Reel Width (AHRF550 to AHRF1500*) w263.5 Maximum
Reel Diameter A 370.0 Maximum
Arbor Hold Diameter c 26.0 ±12.0
Core Diameter* n 91.0 Maximum
Box — 64/372/362 Maximum
Consecutive Missing Places — None —
Empty Places per Reel — 0.1% Maximum
*Differs from EIA specification.
PolySwitch® Resettable PTCs
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/19
Radial Leaded > AHRF Series
Tape and Reel Diagrams
Figure 1
Figure 2
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
WARNING
• Users should independently evaluate the suitability of and test each product selected for their own application.
• Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame.
• These devices are intended for protection against damage caused by occasional overcurrent or overtemperature fault conditions and should not be used when
repeated fault conditions or prolonged trip events are anticipated.
• Contamination of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the performance of the devices.
• Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and mechanical
procedures for electronic components.
• PPTC devices are not recommended for installation in applications where the device is constrained such that its PTC properties are inhibited, for example in rigid
potting materials or in rigid housings, which lack adequate clearance to accommodate device expansion.
• Operation in circuits with a large inductance can generate a circuit voltage (Ldi/dt) above the rated voltage of the device.
h
H1P1
W4
H0
H1
C1
C2
F
AB
Reference Plane
Direction of Unreeling
Cross Section A-B
W5
H
W
t
P0D0
I2
L
L1
hpp
w1
n
a
c
w2
Cross Section
Direction of
Unreeling
Reel
Tape
Upper Side
Lower Side
Optional Shape: Circular or Polygonal
