Product Overview
TEPRO TS-1W 5 Ohm 0.05% Precision Wirewound Resistor - 1 Watt Axial, Silicone-Protected Body, Unused NOS
Condition
Unused NOS. Sourced from an electronics distributor consolidating inventory. Black axial-leaded body marked TEPRO, TS 1W, and 5 0.05%, with four-digit date code 9113. Tinned leads are straight with no corrosion or damage.
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Product Overview
TEPRO TS-1W-5-0.05% - a precision wirewound resistor rated at 5 ohms, 1 watt, with an ultra-tight 0.05% tolerance. Part of the TS series, this axial-leaded component features a ceramic core with high-temperature silicone encapsulation. Designed for low-frequency analog circuits where stable, accurate resistance is non-negotiable - voltage dividers, bridge circuits, gain-setting stages, calibration networks, and current-sensing applications. Date code 9113 on the body.
Key Features
- Resistance: 5 ohms
- Power rating: 1 watt
- Tolerance: 0.05% ultra-tight precision
- Type: Precision wirewound, axial-leaded
- Construction: Ceramic core, high-temperature silicone encapsulation
- Leads: Tinned, straight, no corrosion
- Date code 9113 on body
- TCR: plus/minus 50 ppm/degC for 1-9.9 ohm range in the TS series
Applications
- Calibration lab tech replaces a drifted sense resistor in a precision multimeter and brings the instrument back within spec without a full bench recalibration
- R&D engineer drops this into a bridge circuit on a medical device prototype where a 1% tolerance part would push the output error past the acceptable window
- Test equipment repair shop swaps a failed reference resistor in a vintage HP or Fluke instrument and restores it to original accuracy
- High-end audio builder uses it in a gain-setting stage where resistance drift would be audible as channel imbalance
- Homelab metrology enthusiast builds a precision voltage reference or Wheatstone bridge and needs a stable, known-value component to anchor the measurement
Frequently Asked Questions
Is this resistor suitable for high-frequency or RF circuits?
No. Wirewound resistors have inherent inductance that becomes problematic above approximately 50 kHz. This part is intended for DC and low-frequency AC applications - precision measurement, audio, and analog control circuits. For high-frequency work, a non-inductive film resistor is the correct choice.
What is the temperature coefficient for this resistor?
For the TEPRO TS series, the TCR for values in the 1-9.9 ohm range is plus/minus 50 ppm/degC. The 5 ohm value falls in this range.
What are the physical dimensions?
Standard axial configuration. Buyers with tight PCB constraints should verify lead spacing against their board layout before ordering.
Is this a through-hole part?
Yes. Axial leads, designed for through-hole mounting on a PCB or point-to-point assembly.
What does the 9113 code on the body indicate?
The four-digit code 9113 is a factory date code. Date code conventions vary by manufacturer, so buyers needing a precise manufacture date should confirm against TEPRO's coding scheme. The leads show no corrosion and the body is undamaged.
A 0.05% tolerance resistor does not ask much - just a circuit that deserves it. If yours does, this one is ready.
