features
•Fixed metal film resistor available (specify “SPRX”)
•Flameproof silicone coating equivalent to (UL94V0)
•High reliability performance
•Suitable for automatic machine insertion
•Marking: Light green body color
Color-coded bands on 1/2W - 1W
Alpha-numeric black marking on 2W - 5W
•Products with lead-free terminations meet EU RoHS
and China RoHS requirements
SPR
power carbon film leaded resistor
dimensions and construction
d
D
Marking
Flame Retardant Coating
End
Cap Lead
Wire
L l
C
Ceramic Body
L
SPR1/4
SPRX1/4 .13±.012
(3.3±0.3) .138
(3.5) .067±.012
(1.7±0.3) .018
(0.45) .787 Min.
(20.0 Min.)
.945 Min.
(24.0 Min.)
.024
(0.6)
.031
(0.8) 1.18±.118
(30.0±3.0)
1.50±.118
(38.0±3.0)
.098±.02
(2.5±0.5)
.138±.02
(3.5±0.5)
.165±.031
(4.2±0.8)
.236±.039
(6.0±1.0)
.354±.039
(9.0±1.0)
.280
(7.1)
.437
(11.1)
.591
(15.0)
.709
(18.0)
1.10
(28.0)
.244±.02
(6.2±0.5)
.354±.039
(9.0±1.0)
.472±.039
(12.0±1.0)
.610±.039
(15.5±1.0)
.965±.039
(24.5±1.0)
SPR1/2
SPRX1/2
SPR1
SPRX1
SPR2
SPRX2
SPR3
SPRX3
SPR5
SPRX5
Type C (max.) D d nominal l*
Dimensions inches (mm)
Axial: T26, T52, T521, T631
Stand-off Axial: L52, L521, L631
Radial: VT, VTP, VTE, GT
L, U, M Forming
ordering information
±2%, ±5%:
2 significant figures
+ 1 multiplier
“R” indicates decimal
on value <10Ω
±1%: 3 significant
figures + 1 multiplier
“R” indicates decimal
on value <100Ω
1/4: 0.25W
1/2: 0.5W
1: 1W
2: 2W
3: 3W
5: 5W
C: SnCu
SPR
SPRX
F: ±1%
G:±2%
J: ±5%
SPR 1/2 C
Termination
Material
Type Power
Rating Nominal
Resistance ToleranceTaping and Forming
New Part # T52 103
A: Ammo
R: Reel
Packaging
R J
For further information
on packaging, please
refer to Appendix C.
EU
* Lead length changes depending on taping and forming type.
resistors
137
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/12/09
SPR
power carbon film leaded resistor
Absolute
Maximum
Overload
Voltage
Resistance
Range
E-24
(F±1%, G±2%)
Resistance
Range
E-24*
(J±5%)
Absolute
Maximum
Working
Voltage
Part
Designation
Operating
Temperature
Range
Power
Rating
@ 70°C
applications and ratings
Minimum
Dielectric
Withstanding
Voltage
SPR1/4
SPR1/2
SPR1
SPR2
SPR3
SPR5
SPRX1/4
SPRX1/2
SPRX1
SPRX2
SPRX3
SPRX5
0.25W
0.5W
1W
2W
3W
5W
0.25W
0.5W
1W
2W
3W
5W
300V 2.2Ω - 10KΩ
0.1Ω - 2.0Ω0.1Ω - 2.0Ω—
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 110KΩ
500V
700V
800V
300V
500V
700V
800V
250V
400V
500V
600V
500V
800V
1000V
1200V
10Ω - 100KΩ
— 2.2Ω - 10KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 110KΩ
-55°C
to
+200°C
T.C.R.
(ppm/°C)
±350
Derating Curve
environmental applications
% Rated Power
100
80
60
40
20
-60 -40 0 406080
100 160
70
20
Ambient Temp erature
(°C)
0
-55
120 235
-20
140 180 200 220 240
Surface Temperature Rise
Temperature Rise (°C)
250
200
150
100
50
0255075
% Rated Power
0
100
SPR5
SPR2
SPR3
SPR1
SPR1/2
SPR1/4
Load Life @ 70°C, 1000 Hr
∆ R/R (%)
+4
+2
0
0.1 1 10 100
Resistance
(Ω)
-4
1k
-2
330k
SPRX1 SPR1
210k
100k
Performance Characteristics
E = √P x R E x 2.5
Parameter
Requirement ∆ R ±(% + 0.05Ω)
Limit Typical Test Method
Resistance
T.C.R.
Measuring points are at 10mm ±1mm from the end cap.
Room temperature +100°C
Within specified
tolerance
Within specified
T.C.R.
—
—
Overload (Short time) Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is lower
±(1%+0.1Ω) ±0.5%
Resistance to Solder Heat 260°C ±5°C, 10 seconds ± 1 second
±1% ±0.5%
Rapid Change of Temperature -55°C (30 minutes), +155°C (30 minutes), 5 cycles
±1% ±0.5%
Terminal Strength Twist 360°C, 5 times
No lead-coming off
and loose terminals —
Resistance to Solvent Ultrasonic washing with isopropyl alcohol for 2 minutes.
Power: 0.3W/cm3, f: 28kHz, Temp: 35°C ±5°C
No abnormality in
appearance. Marking
shall be easily legible —
Flame Retardant
Flame test: the test flame shall be applied and removed for each 15 seconds respectively
to repeat the cycle 5 times. Overload flame retardant: power (AC) corresponding to 2, 4,
8, 16 and 32 times the power rating shall be applied for each 1 minute until disconnection
occurs. However the applied voltage shall not exceed the value of 4 times of the
maximum operating voltage
No evidence of
flaming or
self-flaming —
Moisture Resistance 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±(3%+0.1Ω):1/4W-2W
±(5%+0.1Ω):3W,5W
1.5: 1/4W-2W
2.5: 3W, 5W
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±(3%+0.1Ω):1/4W-2W
±(5%+0.1Ω):3W,5W
1.5: 1/4W-2W
2.5: 3W, 5W
resistors
138 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/29/11
* High values may have electric corrosion. KOA recommends the RCR series.
