high power resistors (fusible) type fsq series literature no. 1773219 issued: 04-05 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com key features protects circuit boards & designs small size excellent long term stability complete flame proof construction resistant to high temperature low temperature coefficient uniform in fusing time type fsq series there are some similarities between resistors and fuses in material and structure. fusible resistors contain both functions, as a resistor in normal conditions and as a fuse when abnormal currents are applied, so to protect machinery and equipment. cost savings are apparent as one component is eliminated. the fsq fusible resistor series are produced with precision techniques, enabling precise and stable fusing times. dimensions rated dimensions resistance maximum power range (ohms) working l?.5 h?.5 w?.0 l?.0 d?.05 voltage 2w 18.0 7.0 7.0 35.0 0.65 r10-22 1000v 3w 22.0 8.0 8.0 35.0 0.8 r10-50 1000v 5w 22.0 9.0 10.0 35.0 0.8 r20-50 1000v 7w 35.0 9.0 10.0 35.0 0.8 r30-100 1000v 10w 48.0 9.0 10.0 35.0 0.8 r30-150 1000v characteristics - electrical operating temperature (?): -55 to +275 resistance temperature coefficient (?): -30 to +150 ?00ppm/? short time overload: 2.5 times of rated voltage for 5 seconds ? r < ?% insulation resistance: 500v megger - 1000mohms temperature cycle (?): -30 to +85 for 5 cycles ? r < ?% load life: 70? on-off cycle 1000 hours ? r < ?% moisture-proof load life: 40? 95% rh on-off cycle 1000 hours ? r < ?% solder pot: 270? for 3 seconds ? r < ?% incombustability: 16 times of rated power for 5 minutes - not flamed how to order fsq 3w r10 j t common part example 3w 7w power rating 0.1 ohm (100 milliohms) r10 1.0 ohm (1000 milliohms) 1r0 50 ohms (50000 milliohms) 50r resistance value tolerance fsq - ceramic housed j - ?% packaging t - ammo boxed fusing characteristics fusing times can be decided by consultation with our design team to meet application requirements. derating curve -50 0 50 100 150 200 250 300 275 100 80 60 40 20 0 percent rated power ambient temperature (?) for resistors operated in ambient temperatures above 70?, power rating must be derated in accordance with the curve.
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