Product Overview
Fluke 280974 Precision Wirewound Resistor - 200k Ohm, Ultra-Low TCR, Gold-Plated Leads, Teal Bobbin
Condition
Unused NOS. Markings legible: FLUKE, 280974, 200K, EH1, V4. Teal cylindrical molded bobbin with gold-plated axial leads. No damage observed. Sourced as part of ongoing recovery from legacy electronics supply chains.
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Product Overview
Fluke 280974 is a 200k Ohm precision wirewound resistor in a cylindrical molded teal bobbin package with gold-plated axial leads. Instrumentation grade, 0.005% tolerance, ultra-low TCR - built for the accuracy demands of Fluke test and measurement equipment.
Key Features
- Resistance: 200k Ohm
- Tolerance: 0.005%
- Type: Precision wirewound, instrumentation grade
- TCR: Ultra-low
- Package: Cylindrical molded teal bobbin
- Leads: Gold-plated axial
- Markings: FLUKE, 280974, 200K, EH1, V4
Applications
- Replacing a failed or out-of-spec resistor in a vintage Fluke DMM - desoldering the old component, installing the 280974, and confirming calibration against a known standard
- Building a precision voltage divider or high-impedance reference network where resistance must stay stable across temperature swings
- Bench-level calibration work where a stable 200k reference is needed to verify other instruments or resistance standards
- Hobbyist and maker builds requiring a stable high-value resistance with tighter tolerances than film or carbon types can deliver
Frequently Asked Questions
Will this drop directly into my vintage Fluke instrument?
The 280974 is a Fluke proprietary part number. If your instrument's service documentation or board markings call out 280974, this is the correct replacement. Confirm the part number against your specific instrument before ordering.
Are wirewound resistors suitable for AC or high-frequency circuits?
Wirewound resistors carry parasitic inductance that limits their use in high-frequency AC circuits. This part is best suited to DC and low-frequency precision applications - the environment it was designed for in Fluke instrumentation.
What does the 0.005% tolerance mean in practice?
At 200k Ohm and 0.005% tolerance, the actual resistance value is within 10 Ohm of nominal. That level of precision is what separates instrumentation-grade parts from standard precision resistors and is why they matter in calibration and measurement circuits.
Is anything else included with the resistor?
The resistor ships as a single component. No documentation or accessories are included.
A teal bobbin wound tight enough that the number still comes out right after decades on a shelf - that kind of patience is what metrology runs on. Put it where the circuit calls for it and get back to knowing your readings are honest.
