Product Overview
TEPRO TS1 Precision Resistor, 500 Ohms at 0.1 Percent in a 1 Watt Axial Body
Condition
New, unused old stock. The photographed piece has a dark charcoal molded cylindrical body printed in white with TEPRO on the first line, TS1 on the second, and 500 0.1% on the third. A fourth line of smaller printing sits below the value and is not legible in these photos, so we are not reading a date or lot code off it. Both axial leads are straight, bright, and full length, with no solder, no kinks, and no trimming. No oxidation, corrosion, or handling marks on the body. The piece photographed is representative of our stock, not a specific reserved unit.
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Product Overview
This is a Tepro TS1 axial resistor with a nominal value of 500 ohms and a 0.1 percent tolerance, listed at 1 watt. TS1 is the type designation Tepro printed on the body, and it is the part number this piece is listed and searched under here. The value and tolerance are printed directly on the body alongside it, which is the useful thing about a part like this: you can read 500 0.1% on the resistor itself rather than decoding a color band and hoping. The molded body carries no wattage marking and no indication of the resistive element type, so the 1 watt figure comes from the listing rather than the part, and we do not claim metal film or wirewound construction. Tolerance this tight puts the part in divider, bridge, and reference-setting service rather than general pull-up and bleeder duty, where a 5 percent carbon film would do the job for less. Sold each.
Key Features
- Resistance: 500 ohms, printed on the body
- Tolerance: 0.1 percent, printed on the body
- Power rating: 1 watt as listed; no wattage marking appears on the part itself
- Body marking: TEPRO / TS1 / 500 0.1%, white legend on a dark charcoal molded case
- Part number: TS1, the type designation printed on the body by the maker
- Axial lead configuration, leads straight and full length for through-hole or terminal-strip mounting
- Element construction not confirmed - the body carries no element type marking; verify against a Tepro datasheet before use where construction matters
- Sold each; 29 pieces in stock at time of writing
Applications
- Bench technician rebuilding a precision voltage divider who needs the ratio to hold better than a 1 percent part allows
- Instrument restorer replacing a drifted or cooked resistor in an analog meter or test set input network
- Analog designer setting a current-sense or reference leg where a tenth of a percent is the specification, not a bonus
- Lab or teaching setup that needs a known, marked, tight-tolerance value students can read off the part
Frequently Asked Questions
What is actually printed on the resistor?
Three legible lines in white: TEPRO, TS1, and 500 0.1%. TEPRO is the maker, TS1 is the type designation and the part number we list this resistor under, and 500 0.1% is the value and tolerance. There is a fourth line of smaller printing under the value that we cannot read clearly in these photos, so we are not going to guess at it as a date or lot code.
Is the 1 watt rating marked on the part?
No. The 1 watt figure comes from this listing, not from the body, which carries only the type and value legend. If your design is running near the dissipation limit, confirm the rating against a Tepro TS1 datasheet before you commit to it.
Is this a metal film or a wirewound resistor?
Not confirmed. The molded case gives no element type away and there is no marking that settles it, so we are not stating one. If inductance or noise behavior matters in your circuit, verify the construction against the datasheet before use.
Do I get the exact resistor in the photos?
The photographed piece is representative of our stock; with 29 on the shelf, we are not reserving one specific body for one specific order. No packaging appears in these photos, so we are not describing how the pieces are stored or how they will be packed.
I need six of these, not a bag of a hundred. Can I buy just the count I need?
Yes. These are sold each, so you take one for a single repair or a dozen to build out a matched divider string, instead of paying for a forced lot of 50 and shelving the rest. Precision values are exactly the parts people need in odd counts, and the stock here is deep enough to support that. Shipping is $8 flat rate, free once your order passes $28, and orders leave our Idaho warehouse the same or next business day.
A tenth of a percent, spelled out in white on a body about the size of a coffee bean, because the whole ambition of a precision resistor is that nobody ever thinks about it again. Put it in the leg of the divider that has to stay honest, and let it go quiet.
