MF1W-1KΩ±1% T
CCO (Chian Chia Electronic)
Needs validationlow risk
A 1kΩ 1% resistor with an upgraded 1W power rating. Verify physical dimensions.
Best Alternatives to MFR50SFTE52-1K
Find alternatives for the Yageo MFR50SFTE52-1K, a 0.5W 1kΩ 1% metal film resistor. This guide reviews several potential replacements, focusing on power upgrades and highlighting key differences to ensure a successful substitution.
AI replacement insight
Electrical risklow
For power-upgraded metal film options, electrical risk is low as key parameters match or exceed the target.
Package riskmedium
All candidates are axial, but higher power ratings usually mean larger body dimensions. Fit must be verified.
Electrical riskhigh
For the Metal Oxide, ±5% tolerance option, the risk is high due to parametric and technology differences.
Can it be replaced directly?
There are no confirmed direct drop-in replacements. However, several candidates like `MF1W-1KΩ±1% T` are strong functional alternatives with upgraded power ratings, but require verification of their physical size.
Best replacement path
The best replacement path is to select a metal film resistor with a higher power rating, such as the 1W `MF1W-1KΩ±1% T`, which provides a safety margin while matching other key parameters.
Main risk
The primary risk when substituting is the physical size. Higher power resistors are typically larger and may not fit on the PCB.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | MFR50SFTE52-1K | MF1W-1KΩ±1% T | MF2WS-1KΩ±1% T | MF3WS-1KΩ±1%T | Compatibility / risk |
|---|---|---|---|---|---|
| Power | 0.5W | 1W | 2W | 3W | 1W / 2W / 3W — Safe upgrade, meets engineering rule ER-RES-003.; MF2WS-1KΩ±1% T: Significant upgrade, meets engineering rule ER-RES-003.; MF3WS-1KΩ±1%T: Significant upgrade.; MOF3WS-1KΩ±5%T: Power rating is upgraded. |
| Package | Axial | Axial | Axial | Axial | Axial — Form factor matches, but physical dimensions may be larger due to higher power rating.; MF2WS-1KΩ±1% T: Form factor matches, but physical dimensions will likely be larger due to higher power rating.; MF3WS-1KΩ±1%T: Form factor matches, but physical dimensions will likely be larger. |
| Resistance | 1 kΩ | 1 kΩ | 1 kΩ | 1 kΩ | 1 kΩ — matched; MF2WS-1KΩ±1% T: matched; MF3WS-1KΩ±1%T: matched; MOF3WS-1KΩ±5%T: matched |
| Tolerance | ±1% | ±1% | ±1% | - | ±1% / ±5% — matched; MF2WS-1KΩ±1% T: matched; MOF3WS-1KΩ±5%T: Tolerance is relaxed from ±1% to ±5%. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | - | ±100 ppm/°C — matched |
| Voltage | 350V | - | - | 500V | 500V — Upgraded voltage rating provides more design margin. |
| Technology | Metal Film | - | - | - | Metal Oxide Film — Different resistor technology may affect noise and stability. |
Application & sourcing insights
Questions & answers
The best alternative is likely `MF1W-1KΩ±1% T` by CCO. It offers a safe power upgrade to 1W while matching resistance, tolerance, and TCR. However, you must verify its physical dimensions fit your PCB layout.