Characteristics - Electrical
Test Condition Performance
Resistance Temp. Coefficient: -55°C ~ 155°C ± 300ppm/°C
*Short Time Overload: 10 times rated power for 5 seconds ± 2%
Rated Load: Rated power for 30 minutes ± 1%
Voltage Withstand: 1000V AC 1 minute no change
Insulation Resistance: 500V megger 1000 Meg
Temperature Cycle: -30°C ~ 85°C for 5 cycles ± 1%
Load Life: 70°C on-off cycle for 1000 hours ± 5%
Moisture-proof Load Life: 40°C 95% RH on-off cycle 1000 hours ± 5%
Incombustability: 16 times rated wattage for 5 minutes No flame
Max. Overload Voltage: 2 times max. working voltage
*Metal Film Elements: Short time overload 5 times rated power, 5 seconds
Power
Dimensions Resistance Range
Max. Working
Rating
W ± 1 H ± 1 L ± 1.5 d ± 0.05 l ± 0.3 Wire Metal Film
Voltage
2W 7 7 18 0.65 23 R10 - 82R 83R - 10K 150V
3W 8 8 22 0.8 35 R10 - 180R 181R - 33K 350V
5W 10 9 22 0.8 35 R10 - 180R 181R - 100K 350V
7W 10 9 35 0.8 35 R10 - 430R 431R - 100K 500V
10W 10 9 48 0.8 35 R10 - 470R 471R - 100K 750V
15W 12.5 11.5 48 0.8 35 R50 - 600R 601R - 150K 1000V
20W - 25W 14 13.5 60 0.8 35 R50 - 1K0 1.1K - 150K 1000V
Rated Continuous Working Voltage (RCWV)
RCWV: Rated Power x Resistance Value or Maximum Working Voltage listed above whichever is lower
Type SQP - Horizontal
High Power Resistors
Type SQ Series
1773285 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help
and inches unless otherwise reference purposes only.
specified. Values in brackets Specifications subject
are standard equivalents. to change.
Key Features
I Choice of Styles
I Bracketed Types
Available
I Temp. Op. -55°C to
+250°C
I Wide Value Range
I Stable TCR 300ppm/°C
I Custom Designs
Welcome
I Inorganic Flame Proof
Construction
This flexible range of Power Wirewound Resistors either have wire or power oxide film
elements. The SQ series resistors are wound or deposited on a fine non - alkali ceramic core
then embodied in a ceramic case and sealed with an inorganic silica filler. This design provides
a resistor with high insulation resistance, low surface temperature, excellent T.C.R., and
entirely fire proof construction. These resistors are ideally suited to a range of areas where low
cost, and efficient thermal performance are important design criteria. Metal film cores adjusted
by laser spiral are used where the resistor value is above that suited to wire. Similar
performance is obtained although short time overload is slightly derated.
