SPR
power carbon film leaded resistor
EU
features
•
•
•
•
•
Fixed metal film resistor available (specify “SPRX”)
Flameproof silicone coating equivalent to (UL94V0)
High reliability performance
Suitable for automatic machine insertion
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
•
Surface mount style “N” forming is suitable for
automatic mounting
resistors
dimensions and construction
L
Ceramic Body
l
Type
SPR1/4
SPRX1/4
d
SPR1/2
SPRX1/2
SPR1
SPRX1
Marking
Flame Retardant Coating
C
End
Cap
Lead
Wire
SPR2
SPRX2
SPR3
SPRX3
SPR5
SPRX5
L
.13±.012
(3.3±0.3)
.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)
Dimensions
inches
(mm)
C (max.)
D
d nominal
.138
(3.5)
.280
(7.1)
.437
(11.1)
.591
(15.0)
.709
(18.0)
1.10
(28.0)
.067±.012
(1.7±0.3)
.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)
.031
(0.8)
.018
(0.45)
.024
(0.6)
.945 Min.
(24.0 Min.)
l*
.787 Min.
(20.0 Min.)
D
1.18±.118
(30.0±3.0)
1.50±.118
(38.0±3.0)
* Lead length changes depending on taping and forming type.
ordering information
SPR
Type
SPR
SPRX
1/2
Power
Rating
1/4: 0.25W
1/2: 0.5W
1: 1W
2: 2W
3: 3W
5: 5W
C
Termination
Material
C: SnCu
T52
Taping and Forming
Axial: T26, T52, T521, T631
Stand-off Axial: L52, L521, L631
Radial: VT, VTP, VTE, GT, VTF
L, U, M, N Forming
R
Packaging
A: Ammo
R: Reel
TEB:
Embossed
plastic
(N forming)
103
Nominal
Resistance
±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
J
Tolerance
F: ±1%
G: ±2%
J: ±5%
For further information
on packaging, please
refer to Appendix C.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/21/17
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
203
SPR
power carbon film leaded resistor
applications and ratings
Part
Designation
SPR1/4
SPR1/2
SPR1
SPR2
SPR3
SPR5
SPRX1/4
SPRX1/2
SPRX1
SPRX2
SPRX3
SPRX5
Power
Rating
@ 70°C
0.25W
0.5W
1W
2W
3W
5W
0.25W
0.5W
1W
2W
3W
5W
Minimum
Dielectric
Withstanding
Voltage
300V
500V
10Ω - 91KΩ
700V
800V
300V
500V
700V
800V
—
±350
10Ω - 100KΩ
—
T.C.R.
(ppm/°C)
Resistance
Range
E-24*
(F±1%, G±2%)
—
Resistance
Range
E-24
(J±5%)
2.2Ω - 10KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 91KΩ
2.2Ω - 110KΩ
500V
600V
1200V
-55°C
to
+200°C
E =
√
P x R
Absolute
Maximum
Working
Voltage
Absolute
Maximum
Overload
Voltage
500V
800V
1000V
Operating
Temperature
Range
resistors
1.0Ω - 2.0Ω
0.1Ω - 2.0Ω
E =
√
P x R
E x 2.5
* Please consult when there is a demand of the resistance besides the 1% and 2% range.
Rated Ambient Temperature: +70°C
environmental applications
Surface Temperature Rise
Derating Curve
Surface Temperature Rise (°C)
Load Life @ 70°C, 1000 Hr
+4
+2
∆
R/R (%)
SPRX1
SPR1
100
80
% Rated Power
60
40
20
0
-60 -40 -20 0 20 40 60 80 100 120 140 160 180 200 220 240
235
-55
70
Ambient Temperature
(°C)
250
200
150
100
50
0
1W (L15A)
0.5W (L10A)
0.25W (L5A)
0
25
50
75
100
5W (L35A)
3W (L25A)
2W (L20A)
0
-2
-4
0.1
12
10
100
1k
10k
100k
% Rated Power
Resistance
(Ω)
For resistors operated at an ambient temperature of 70°C or above, a
power rating shall be derated in accordance with the above derating curve.
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Terminal Strength
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
Resistance to Solvent
Requirement
∆
R ±(% + 0.05Ω)
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±(1%+0.1Ω)
±0.5%
±1%
±0.5%
No lead-coming off
and loose terminals
Test Method
Measuring points are at 10mm ±1mm from the end cap.
+25°C/+125°C
Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is lower
260°C ±5°C, 10 seconds ± 1 second
Twist 360°C, 5 times
-55°C (30 minutes), +155°C (30 minutes), 5 cycles
40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
Ultrasonic washing with isopropyl alcohol for 2 minutes.
Power: 0.3W/cm
3
, f: 28kHz, Temp: 35°C ±5°C
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
5/09/18
—
±0.5%
1.5: 1/4W-2W
2.5: 3W, 5W
1.5: 1/4W-2W
2.5: 3W, 5W
±1%
±(3%+0.1Ω):1/4W-2W
±(5%+0.1Ω):3W,5W
±(3%+0.1Ω):1/4W-2W
±(5%+0.1Ω):3W,5W
No abnormality in
appearance. Marking
shall be easily legible
—
Flame Retardant
No evidence of
flaming or
self-flaming
—
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
204
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
