Product Overview
TEPRO TS Axial Precision Power Wirewound Resistor - 9950 Ohm, 1 W, 0.1%
Condition
New. The photo shows a representative unit from our stock.
Same or next business day shipping from our Idaho warehouse. Honest pricing, no nonsense.
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Product Overview
The TS line is Tepro's silicone-protected axial precision power wirewound family, a steatite or alumina core wound with copper-nickel or nickel-chrome and sealed with high-temperature silicone, per Tepro's published TS series data. The unit photographed is a black body with tapered shoulders, printed in white on four lines, TEPRO, then TS 1W, then 9950, then 0.1%. The 9950 is the resistance in ohms sitting in the value position with the tolerance directly beneath it, and no separate four-digit stamped code is visible in these photos. Long straight silver leads run well past the body at both ends, held between fingers against a dark speckled backdrop through all the frames. Three are on the shelf at this value, sold one at a time.
Key Features
- Body of the unit photographed printed TEPRO TS 1W with 9950 and 0.1% beneath, giving 9950 ohm at 0.1% tolerance
- Power: 1 W. Tepro's published TS data lists the 1 W types as TS1A covering 0.01 to 10K ohm, and TSA1 and TS1 covering 0.01 to 20K ohm, all of which span 9950 ohm
- Temperature coefficient +/-20 ppm at 10 ohm and above, the band 9950 ohm falls in (Tepro published TS data)
- Standard TS tolerances run 0.05% to 5%, with 0.01% available on most types as a variation, so the printed percentage is the resistance tolerance and not a letter code (Tepro published TS data)
- Construction: steatite or alumina core, copper-nickel or nickel-chrome winding as the resistance requires, high-temperature silicone sealant, tinned copper-weld standard terminals (Tepro published TS data)
- Rating basis characteristic U, 275 degC maximum hotspot, 0.5% maximum delta-R over 2000 h load life; the TS.5 through TS2 sizes run full power to 170 degC ambient without derating (Tepro published TS data)
- Short-time overload 5 s at 5x rated power on types of 3 W and below; dielectric strength 500 VAC on TS.125 through TS3, insulation resistance 1000 Mohm minimum (Tepro published TS data)
- Verify against Tepro's published TS series data before designing in.
Applications
- Bridge arms, calibration networks and reference dividers
- Precision sense and shunt positions in instrumentation
- Gain-setting legs in analog signal chains
- Repair and restoration of legacy precision test gear
Frequently Asked Questions
How many should I order?
Order the count the build needs. Three of this value are on the shelf, sold one at a time rather than in fixed packs, so a divider position and a spare come out of a single order. Shipping is $8 flat rate and free on orders over $28, so small parts like this ship smartest as part of a larger order.
Is 9950 a code or the resistance?
The resistance, in ohms, printed on its own line between TS 1W and 0.1%. It happens to run to four digits, which is also the shape of the stamped codes that turn up on some bodies in this family, but here it sits in the value position with the tolerance printed directly under it. 9950 ohm falls inside the 0.01 to 20K ohm span Tepro's published data gives for its 1 W TS types, and no separate stamped code appears on the faces shown here.
9950 ohms is nobody's standard value and was exactly somebody's requirement.
