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. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
SPH/SPF Series
Type SPH SPF
EIA RS-344 Style
MIL-R-11 Style
Resistance - Std. Ω Ω Ω Ω
Tolerance - Std.
Power Rating
Max. Continuous Working Voltage √ √
Min. Insulation
Resistance
Min. Dielectric ATM
Withstanding Volts
(RMS) Reduced Pressure
Hotspot Temperature Rise
Typical Load Life
Current Noise
Dry
Wet
1. Resistive Element
2. Termination
3. Encapsulation
4. Marking
1
3
4
2
(See notes below)
SPH/SPF Series Issue December 2008 Sheet 1 of 3
General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
01.14
· 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)
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. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
SPH/SPF Series
Type SPH SPF
EIA RS-344 Style
MIL-R-11 Style
Resistance - Std. Ω Ω Ω Ω
Tolerance - Std.
Power Rating
Max. Continuous Working Voltage √ √
Min. Insulation
Resistance
Min. Dielectric ATM
Withstanding Volts
(RMS) Reduced Pressure
Hotspot Temperature Rise
Typical Load Life
Current Noise
Dry
Wet
1. Resistive Element
2. Termination
3. Encapsulation
4. Marking
1
3
4
2
(See notes below)
SPH/SPF Series Issue December 2008 Sheet 1 of 3
General-Purpose Failsafe
Moulded Wirewound Resistors
SPH/SPF Series
Drop-in replacement for BWH/BWF
2waratedwith1wadimensions
±5%,±10%tolerance
0.1ohmto2400ohms
TCR’saslowas±150ppm/°Cstandard
(customTC’savailable)
Weldableandsolderableleads
Resistors
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. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
SPH/SPF Series
Type SPH SPF
EIA RS-344 Style
MIL-R-11 Style
Resistance - Std. Ω Ω Ω Ω
Tolerance - Std.
Power Rating
Max. Continuous Working Voltage √ √
Min. Insulation
Resistance
Min. Dielectric ATM
Withstanding Volts
(RMS) Reduced Pressure
Hotspot Temperature Rise
Typical Load Life
Current Noise
Dry
Wet
1. Resistive Element
2. Termination
3. Encapsulation
4. Marking
1
3
4
2
(See notes below)
SPH/SPF Series Issue December 2008 Sheet 1 of 3
General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
01.14
· 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)
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. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
SPH/SPF Series
Type SPH SPF
EIA RS-344 Style
MIL-R-11 Style
Resistance - Std. Ω Ω Ω Ω
Tolerance - Std.
Power Rating
Max. Continuous Working Voltage √ √
Min. Insulation
Resistance
Min. Dielectric ATM
Withstanding Volts
(RMS) Reduced Pressure
Hotspot Temperature Rise
Typical Load Life
Current Noise
Dry
Wet
1. Resistive Element
2. Termination
3. Encapsulation
4. Marking
1
3
4
2
(See notes below)
SPH/SPF Series Issue December 2008 Sheet 1 of 3
1
3
4
2
(See notes below)
General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
01.14
· 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)
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. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
SPH/SPF Series
Type SPH SPF
EIA RS-344 Style
MIL-R-11 Style
Resistance - Std. Ω Ω Ω Ω
Tolerance - Std.
Power Rating
Max. Continuous Working Voltage √ √
Min. Insulation
Resistance
Min. Dielectric ATM
Withstanding Volts
(RMS) Reduced Pressure
Hotspot Temperature Rise
Typical Load Life
Current Noise
Dry
Wet
1. Resistive Element
2. Termination
3. Encapsulation
4. Marking
1
3
4
2
(See notes below)
SPH/SPF Series Issue December 2008 Sheet 1 of 3
06.18
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
AllPb-freepartscomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)AllPb-freepartscomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)
General-Purpose Failsafe
Moulded Wirewound Resistors
SPH/SPF Series
General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
01.14
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Dimensions (Inches and (mm))
Type A B C D
SPH 0.562 ± 0.010
(14.3 ± 0.25)
0.225 ± 0.008
(5.72 ± 0.20)
0.032 ± 0.002
(0.813 ± 0.05)
1.50 ± 0.126
(38.1 ± 3.2)
SPF 0.562 ± 0.010
(14.3 ± 0.25)
0.225 ± 0.008
(5.72 ± 0.20)
0.032 ± 0.002
(0.813 ± 0.05)
1.50 ± 0.126
(38.1 ± 3.2)
Physical Data
C
DA
B
General Purpose Failsafe
Molded Wirewound Resistor
Environmental Data
Test SPH SPF
Temperature Coefficient (ppm)*
0.1Ω - 0.16Ω ± 1000
0.18Ω - 0.68Ω ± 800
0.75Ω - 2400Ω ± 400
0.10Ω ± 1700
0.11Ω - 0.16Ω ± 1000
0.18Ω - 0.68Ω ± 800
0.75Ω - 1000Ω ± 400
Dielectric Withstanding Voltage (RMS) 1000V 1000V
Momentary Overload 5% 5%
Low Temperature Operation 5% 5%
Temperature Cycle 5% 5%
Humidity 5% 5%
Load Life 5% 5%
Terminal Strength 5% 5%
Resistance to Solder Heat 5% 5%
Solderability No Failures No Failures
SPH/SPF Series Issue December 2008 Sheet 2 of 3
06.18
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
General-Purpose Failsafe
Moulded Wirewound Resistors
SPH/SPF Series
General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
01.14
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
SPH Power Derating Curve
2.0
2.5
1.5
1.0
0.5
0
Ambient Temperature (°C)
Power (watts)
0 50 100 150 20070 160
General Purpose Failsafe
Molded Wirewound Resistor
SPF Power Derating Curve
SPF Typical Fusing SPH and SPF
Temperature Rise Chart
2.0
2.5
1.5
1.0
0.5
0
Ambient Temperature (°C)
Power (watts)
0 50 100 150 20070
20
25
15
10
5
0
Time (seconds)
Power (watts)
0 20 40 60 80 100
2
0.1 ohm
1 ohm
10 ohm
100 ohm
1000 ohm
125
150
100
75
50
25
Power Input (watts)
Temperature Rise (°C)
0 0.5 1.0 1.5 2.0
0
SPH/SPF Series Issue December 2008 Sheet 3 of 3
06.18
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
General-Purpose Failsafe
Moulded Wirewound Resistors
SPH/SPF Series
General Purpose Failsafe
Molded Wirewound Resistor
SPH/SPF Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
01.14
Ordering Procedure
This product has two valid part numbers:
European (Welwyn) Part Number:SPH-150RJI (SPH,150 ohms ±5%, Pb-free)
S
P
H
-
1
5
0
R
J
I
1
2
3
4
USA (IRC) Part Number: SPH1500JLF (SPH, 150 ohms ±5%, Pb-free)
S
P
H
1
5
0
0
J
L
F
1
2
3
4
1
2
3
4
Type Value Tolerance Packing & Termination Finish
SPH
R = ohms
K = kilohms
J= ±5%
I = Standard packing & Pb-free
SPF
K = ±10%
Tape pack 1250/reel
1
2
3
4
Type Value Tolerance Termination Finish Standard Packing
SPH
3digits + multiplier
J= ±5%
Omit for SnPb
1250/reel
Tape pitch 0.375” (9.5mm)
Tape to tape 2.875” (73mm)
Leads untrimmed
SPF
R = ohms for
values <100 ohms
K = ±10%
LF = Pb-free
06.18
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn