Surface Mount PTC
0ZCG Series
belfuse.com/circuit-protection
0ZCG Series – 1812 Chip RoHS 2 Compliant
Operating (Hold Current) Range
100mA - 3A
Product Features
- 1812 Chip Size, Fast Trip Time, Low DCR Resistance
- AEC-Q Compliant
- Meets Bel automotive qualification*
* - Largely based on internal AEC-Q test plan
Maximum Voltage Temperature Range
6 - 60V (per table) -40°C to 85°C
Agency Approval
TUV (Std. EN/IEC 60738-1-1 and EN/IEC 60730-1, Cert. R50102117 &
R50102187)
UL Recognized Component (Std. UL1434, File E305051)
LEAD FREE =
HALOGEN FREE =
Electrical Characteristics (23 )
Part Number
Hold
Current
Trip
Current
Rated
Voltage
Maximum
Current
Typical
Power
Resistance Tolerance
Agency Approvals
Current
Time
Rmin
R1max
IH, A
IT, A
Vmax, Vdc
Imax, A
Pd, W
A
Sec
Ohms
Ohms
A
0ZCG0010FF2C
0.10
0.30
60
100
0.8
8.0
0.020
1.600
15.00
Y
Y
B
0ZCG0014FF2C
0.14
0.30
60
10
0.8
8.0
0.008
1.200
6.500
Y
Y
C
0ZCG0020FF2C
0.20
0.40
30
10
0.8
8.0
0.020
0.800
5.000
Y
Y
0ZCG0020AF2C
0.20
0.40
60
40
0.8
8.0
0.020
0.800
5.000
Y
Y
D
0ZCG0030FF2C
0.30
0.60
30
40
0.8
8.0
0.100
0.200
1.750
Y
Y
E
0ZCG0035FF2C
0.35
0.70
16
40
0.8
8.0
0.100
0.320
1.500
Y
Y
0ZCG0035AF2C
0.35
0.70
30
40
0.8
8.0
0.100
0.320
1.500
Y
Y
F
0ZCG0050FF2C
0.50
1.00
16
100
0.8
8.0
0.150
0.150
1.000
Y
Y
0ZCG0050AF2C
0.50
1.00
30
100
0.8
8.0
0.150
0.150
1.000
Y
Y
G
0ZCG0075FF2C
0.75
1.50
16
100
0.8
8.0
0.200
0.110
0.450
Y
Y
0ZCG0075AF2B
0.75
1.50
24
40
1.0
8.0
0.200
0.110
0.290
Y
Y
0ZCG0075BF2B
0.75
1.50
33
40
1.0
8.0
0.200
0.110
0.400
Y
Y
H
0ZCG0110FF2C
1.10
2.20
8
100
0.8
8.0
0.300
0.040
0.210
Y
Y
0ZCG0110AF2C
1.10
2.20
16
100
0.8
8.0
0.500
0.060
0.180
Y
Y
0ZCG0110BF2B
1.10
2.20
24
100
1.0
8.0
0.500
0.060
0.200
Y
Y
0ZCG0110CF2B
1.10
2.20
33
100
0.8
8.0
0.500
0.060
0.200
Y
Y
I
0ZCG0125FF2C
1.25
2.50
6
100
0.8
8.0
0.400
0.050
0.140
Y
Y
0ZCG0125AF2B
1.25
2.50
16
100
0.8
8.0
0.400
0.050
0.140
Y
Y
J
0ZCG0150FF2C
1.50
3.00
8
100
0.8
8.0
0.500
0.040
0.110
Y
Y
0ZCG0150AF2C
1.50
3.00
12
100
1.0
8.0
0.500
0.040
0.110
Y
Y
0ZCG0150BF2C
1.50
3.00
24
100
1.0
8.0
1.500
0.040
0.120
Y
Y
K
0ZCG0160FF2C
1.60
3.20
8
100
0.8
8.0
0.500
0.030
0.100
Y
Y
0ZCG0160AF2C
1.60
3.20
12
100
1.0
8.0
1.000
0.030
0.100
Y
Y
0ZCG0160BF2C
1.60
3.20
16
100
1.0
8.0
1.000
0.030
0.100
Y
Y
0ZCG0160CF2C
1.60
3.20
24
100
1.0
8.0
1.000
0.030
0.100
Y
Y
L
0ZCG0200FF2C
2.00
3.50
8
100
1.0
8.0
2.000
0.020
0.070
Y
Y
0ZCG0200AF2B
2.00
3.50
16
100
1.0
8.0
5.000
0.020
0.085
Y
Y
M
0ZCG0260FF2C
2.60
5.00
8
100
1.0
8.0
2.500
0.015
0.047
Y
Y
0ZCG0260AF2B
2.60
5.00
13.2
100
1.3
8.0
5.000
0.015
0.050
Y
Y
0ZCG0260BF2B
2.60
5.00
16
100
1.3
8.0
5.000
0.015
0.050
Y
Y
N
0ZCG0300FF2B
3.00
5.00
6
100
1.0
8.0
4.000
0.012
0.040
Y
Y
IH Hold Current- The maximum current at which the device will not trip in still air at 23°C.
IT Trip current- The minimum current at which the device will trip in still air at 23°C.
Vmax Maximum voltage device can withstand at its rated current without suffering damage.
Imax Maximum fault current device can withstand at rated voltage (Vmax) without damage.
Pd Typical power dissipated by device when in tripped state in 23°C still air environment.
Rmin Minimum device resistance at 23° C in initial un-soldered state.
R1max Maximum device resistance at 23°C, 1 hour after initial device trip, or after being soldered to PCB in end application.
Specifications subject to change without notice
AEC-Q Compliant
New Rating
Type 0ZCG Series
2 / 4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
© 2019 Bel Fuse, Inc.
Rev. 0ZCG Sep2019
PTC’s – Basic Theory of Operation / “Tripped” Resistance Explanation
A Bel PTC consists of a block of polymeric material containing conductive carbon granules which is
sandwiched between two conductive metal plates. When this polymer block reaches approximately 125C,
either due to current passing through it via conductive chains of carbon particles or due to an external heat
source; it swells volumetrically. This expansion breaks apart a majority of the chains of carbon granules that
run randomly between the two conductive plates. This behavior results in a sharp increase in resistance
across the two plates which all but eliminates current flow through the device, allowing just enough residual
current flow to maintain the block’s internal temperature at 125C. Once this “tripped” state current is cut off,
the polymer brick cools and shrinks to its original size, thereby allowing its broken carbon chains to
reestablish themselves and permit the part to return to its low resistance state. Once cooled to room
ambient, the PTC will once again exhibit a resistance less than its “R1max” rating.
At currents below the device IHOLD rating, AND at temperatures below 100C, the PTC maintains a
resistance value below its R1 MAX rating.
The catalog data for each device specifies a "Typical Power" value. This is the power required to exactly
match the heat lost by the tripped device to its ambient surroundings at 23C. By Ohm's Law, power can be
stated as: W = E²/R. Thus the approximate resistance of a “Tripped” PTC can be determined by: R = E²/W,
where "E" is the voltage appearing across the PTC (usually the supply's open circuit voltage), and "W" is the
Typical Power value for the particular PTC.
Since the PPTC acts to maintain a constant internal temperature, its apparent resistance will change based
upon applied voltage and, to a lesser degree, ambient conditions. Consider the following example....
A PTC with a Typical Power of 1 watt protecting a circuit using a 60V supply will demonstrate an apparent,
tripped resistance "R" of:
R = 60²/1 = 3,600 ohms
This same tripped device when used to protect a 12V circuit would now present an apparent resistance of:
R = 12²/1 = 144 ohms
The value for Typical Power is "typical" because any physical factors that affect heat loss (such as ambient
temperature or air convection) will somewhat alter the level of power that the PTC needs to maintain its
internal temperature. In short, PTCs do not exhibit a constant, quantifiable tripped resistance value.
Average Time Current Characteristic Curve at 23°C
The Average Time Current Characteristic Curve and Temperature Rerating Curve are affected by a number of variables and these curves are
provided for guidance only.
Specifications subject to change without notice
Type 0ZCG Series
3 / 4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
© 2019 Bel Fuse, Inc.
Rev. 0ZCG Sep2019
Mechanical Dimensions and Marking
Pad Layout
The dimensions in the table below provide the
recommended pad layout
Termination Pad Materials
Matte Tin – Plated Copper
Temperature Derating Table
Temperature Derating
I Hold Value
-40
-20
0
23
30
40
50
60
70
85
0010,0014 and 0020
167%
150%
133%
100%
93%
83%
73%
63%
51%
33%
0030 thru 0300
143%
129%
116%
100%
94%
86%
77%
69%
61%
48%
Thermal Derating Curve Cautionary Notes
1. Operation beyond the specified maximum ratings or improper use may result
in damage and possible electrical arcing and/or flame.
2. These Polymer PTC (PPTC) devices are intended for protection against
occasional overcurrent/overtemperature fault conditions and may not be
suitable for use in applications where repeated and/or prolonged fault
conditions are anticipated.
3. Avoid contact of PTC device with chemical solvent. Prolonged contact may
adversely impact the PTC performance.
4. These PTC devices may not be suitable for use in circuits with a large
inductance, as the PTC trip can generate circuit voltage spikes above the
PTC rated voltage.
5. These devices may be used in both DC and AC circuits provided that peak-
to-peak line voltage when carrying AC does not exceed the PTC’s Vmax
rating. As PTCs are essentially thermal devices, the RMS value of AC
current carried by a PTC will produce tripping parameters and times-to-trip
similar to those of a DC voltage of the same magnitude.
6. If potting is mandated, avoid rigid potting compounds as they will encase the
PTC and prevent it from volumetrically expanding to properly respond to a
trip event.
7. MSL: 2a (According to IPC J-Std-020).
All dimensions in mm.
Part Number
Dimensions
Marking Code
C
D
“b”, IH code
Min
Max
Min
Max
0ZCG0010FF2C
0.60
0.90
0.30
0.95
0010
0ZCG0014FF2C
0.60
0.90
0.30
0.95
0014
0ZCG0020FF2C
0.60
0.90
0.30
0.95
0020
0ZCG0020AF2C
0.60
0.90
0.30
0.95
020
60
0ZCG0030FF2C
0.40
0.70
0.30
0.95
0030
0ZCG0035FF2C
0.40
0.70
0.30
0.95
0035
0ZCG0035AF2C
0.40
0.70
0.30
0.95
035
30
0ZCG0050FF2C
0.35
0.65
0.30
0.95
0050
0ZCG0050AF2C
0.45
0.75
0.30
0.95
050
30
0ZCG0075FF2C
0.35
0.65
0.30
0.95
0075
0ZCG0075AF2B
0.80
1.55
0.25
0.95
075
24
0ZCG0075BF2B
0.80
1.55
0.25
0.95
075
33
0ZCG0110FF2C
0.25
0.55
0.30
0.95
0110
0ZCG0110AF2C
0.25
0.90
0.30
0.95
110
16
0ZCG0110BF2B
0.80
1.30
0.25
0.95
110
24
0ZCG0110CF2B
0.80
1.30
0.25
0.95
110
33
0ZCG0125FF2C
0.25
0.55
0.30
0.95
0125
0ZCG0125AF2B
0.50
1.00
0.30
0.95
125
16
0ZCG0150FF2C
0.25
0.55
0.30
0.95
0150
0ZCG0150AF2C
0.60
1.10
0.25
0.95
150
12
0ZCG0150BF2C
0.60
1.55
0.25
0.95
150
24
0ZCG0160FF2C
0.25
0.90
0.30
0.95
0160
0ZCG0160AF2C
0.60
1.35
0.25
0.95
160
12
0ZCG0160BF2C
0.60
1.35
0.25
0.95
160
16
0ZCG0160CF2C
0.55
1.20
0.25
0.95
160
24
0ZCG0200FF2C
0.55
1.20
0.25
0.95
200
A
0ZCG0200AF2B
0.60
1.55
0.25
0.95
200
16
0ZCG0260FF2C
0.55
1.20
0.25
0.95
0260
0ZCG0260AF2B
0.80
1.55
0.25
0.95
260
13
0ZCG0260BF2B
0.80
1.55
0.25
0.95
260
16
0ZCG0300FF2B
0.80
1.55
0.25
0.95
0300
P
S
W
Nominal
Nominal
Nominal
mm
Inch
mm
Inch
mm
Inch
3.45
0.136
1.78
0.070
3.50
0.138
Specifications subject to change without notice
0%
20%
40%
60%
80%
100%
120%
140%
160%
180%
-40 -20 0 20 40 60 80
Percent of Hold and Trip Current
Temperature(°C)
Temperature Derating Curve
0010,0014 and0020 0030 thru 0300
Type 0ZCG Series
4 / 4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
© 2019 Bel Fuse, Inc.
Rev. 0ZCG Sep2019
Environmental Specifications
Temperature cycling
JESD22 Method JA-104
Biased humidity
MIL-STD-202 Method 103
Operational life
MIL-STD-202 Method 108
Resistance to solvents
MIL-STD-202 Method 215
Mechanical shock
MIL-STD-202 Method 213
Vibration
MIL-STD-202 Method 204
Resistance to soldering heat
MIL-STD-202 Method 210
Thermal shock
MIL-STD-202 Method 107
Solderability
ANSI/J-STD-002
Board flex(SMD)
AEC-Q200-005
Terminal strength
AEC-Q200-006
Solder Reflow and Rework Recommendations
Profile Feature
Pb-Free Assembly
Average Ramp-Up Rate (Tsmax to Tp)
3°C/second max
Preheat :
Temperature Min (Tsmin)
Temperature Max (Tsmax)
Time (tsmin to tsmax)
150°C
200°C
60-180 seconds
Time maintained above:
Temperature(TL)
217°C
Time (tL)
60-150 seconds
Peak/Classification Temperature(Tp) :
260°C
Time within 5°C of actual Peak :
Temperature (tp)
20-40 seconds
Ramp-Down Rate :
6°C/second max.
Time 25°C to Peak Temperature :
8 minutes max
Solder Reflow
Due to “lead free / RoHS 2 ” construction of these PTC devices , the required Temperature and Dwell Time in the “ Soldering ” zone of the
reflow profile are greater than those used for non-RoHS devices.
1. Recommended reflow methods; IR, vapor phase oven, hot air oven.
2. Not Recommended For Wave Solder / Direct Immersion.
3. Recommended paste thickness range – 0.20 – 0.25mm.
4. Devices are compatible with standard industry cleaning solvents and methods.
5. MSL: 2a (According to IPC J-Std-020).
Caution
If reflow temperature / dwell times exceed the recommended profile, the electrical performance of the PTC may be affected.
Rework: MIL-STD-202G Method 210F, Test Condition A.
Standard Packaging P/N Explanation and Ordering Information
Part Number
Tape/Reel Qty
0ZCG0010FF2C
Thru
0ZCG0075FF2C
2,000
0ZCG0075AF2B
0ZCG0075BF2B
1,500
0ZCG0110FF2C
0ZCG0110AF2C
2,000
0ZCG0110BF2B
0ZCG0110CF2B
1,500
0ZCG0125FF2C
2,000
0ZCG0125AF2B
1,500
0ZCG0150FF2C
Thru
0ZCG0200FF2C
2,000
0ZCG0200AF2B
1,500
0ZCG0260FF2C
2,000
0ZCG0260AF2B
Thru
0ZCG0300FF2B
1,500
Specifications subject to change without notice
2000 or 1500 fuses
In 7 inches dia. Reel,
8mm wide tape, 4mm
pitch, per EIA-481
(equivalent
IEC-286 part 3).