SPH1500JLF Datasheet, PDF (1/3 Pages) IRC - a TT electronics Company. – General Purpose Failsafe Molded Wirewound Resistor

General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
• SPF is fusible
• ±5%, ±10% tolerance
• 0.1 ohm to 2400 ohms
• Weldable and solderable leads
• 2 watt rated with 1 watt dimensions
• Drop-in replacement for BWH/BWF
• Lead free, RoHS compliant construction available
• TCR’s as low as ±150 ppm/°C standard (custom TC’s available)
3
1
4
2
(See notes below)
Electrical Data
IRC Type
EIA RS-344 Style
MIL-R-11 Style
Resistance - Std.
Tolerance - Std.
Power Rating
Max. Continuous Working Voltage
Min. Insulation
Dry
Resistance
Wet
Min. Dielectric
ATM
Withstanding Volts
(RMS)
Reduced Pressure
Hotspot Temperature Rise
SPH
SPF
CRU2
CRU2
RC32/RC42
RC32/RC42
0.1Ω to 2400Ω
0.1Ω to 1000Ω
±5%, ±10%
±5%, ±10%
2 watt @ 70°C
2 watt @ 70°C
1 watt @ 115°C
1 watt @ 115°C
Derating to 0 @ 160°C Derating to 0 @ 160°C
√PR
√PR
10,000 Meg
100 Meg
1000V
10,000 Meg
100 Meg
1000V
625V
625V
1. Resistive Element
All resistor types have resistance alloy
winding on a braided fiberglass substrate.
Intermediate silicone coatings are used
to enhance processibility and to provide
protection to the resistive element.
2. Termination
The SPH and SPF resistors are terminated
using an alloy coated copper flashed steel
lead welded to a cap of the same material.
This termination assembly is mechanically
crimped, utilizing an improved crimp design,
to the resistive element.
3. Encapsulation
The SPH and the SPF are encapsulated uti-
lizing a compression molded phenolic plastic
material. The SPF has a flame resistance
coating applied over the resistive element
to provide flammability protection when
destructive overloads may occur.
4. Marking
All products are marked utilizing heat and
solvent resistant color code bands consistent
with EIA/MIL requirements. The first band
is double width to designate wirewound
construction. A fifth band, blue in color, is
used for flameproof identification.
145°C @ 2 watts
145°C @ 2 watts
Typical Load Life
5%
5%
Current Noise
Negligible
Negligible
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: [phone] • Facsimile: 361 992 3377 • Website: www.irctt.com
A subsidiary of
TT electronics plc
SPH/SPF Series Issue December 2008 Sheet 1 of 3