Alternatives to KOA Speer Electronics, Inc. RK73H1ETTP5110F
KOA Speer Electronics, Inc. RK73H1ETTP5110F and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for KOA Speer Electronics, Inc. RK73H1ETTP5110F
 RK73H1ETTP5110FKOA Speer Electronics, Inc. | ERJ-2RKF5110XPanasonic Industry |  CRCW0402511RFKEDVishay Dale | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Standard 2-terminal 0402 SMD chip resistor footprint.Identical physical package dimensions of 1.00mm x 0.50mm with a maximum height of 0.40mm.Matches all primary specifications including 511 Ohm resistance, 1% tolerance, 0.1W power rating, ±100ppm/°C TCR, and AEC-Q200 qualification. | Standard 2-terminal 0402 SMD chip resistor footprint.Identical physical package dimensions of 1.00mm x 0.50mm with a maximum height of 0.40mm.The power rating is 0.063W (1/16W), which is lower than the original's 0.1W (1/10W) rating. | ||
 AI Summary | RK73H1ETTP5110F by KOA Speer Electronics, Inc.: 511 Ohms ±1% 0.1W, 1/10W Chip Resistor 0402 (1005 Metric) Automotive AEC-Q200 Thick Film. | The Panasonic ERJ-2RKF5110X is a direct, drop-in equivalent that perfectly matches all mechanical and electrical specifications, including the higher 0.1W power rating and AEC-Q200 automotive qualification. It is the highest-reliability replacement option available.
| The Vishay Dale CRCW0402511RFKED is a high-quality automotive-grade alternative with matching tolerance and temperature coefficient. However, its power rating is limited to 0.063W, making it suitable only if the application's actual power dissipation does not exceed this limit.
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| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Frequently asked questions
Yes. The KOA Speer Electronics, Inc. RK73H1ETTP5110F is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the KOA Speer Electronics, Inc. RK73H1ETTP5110F are the ERJ-2RKF5110X (Panasonic Industry) and the CRCW0402511RFKED (Vishay Dale), out of 5 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the RK73H1ETTP5110F are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The RK73H1ETTP5110F (KOA Speer Electronics, Inc.) is a part in the Chip Resistor - Surface Mount category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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