RK73H2HTTE7151F Equivalent & Substitute Parts

Part Overview

The RK73H2HTTE7151F is a 7.15 kOhms ±1% 0.75W chip resistor manufactured by KOA Speer Electronics in the 2010 (5025 Metric) package. This thick film resistor is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently in active production status. Substitute parts may be required due to supply constraints, inventory availability, or design phase transitions where alternative qualified components are necessary.

Substiute Parts

RK73H2HTTE7151F

KOA Speer Electronics, Inc.In Stock: 1112RK73H2HTTE7151F Datasheet

Current PartRFQ

ERJ-12SF7151U

Panasonic Electronic ComponentsIn Stock: 654ERJ-12SF7151U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H2HTTE7151F is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance value: 7.15 kOhms
• Tolerance: ±1%
• Power rating: 0.75W
• Package designation: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Automotive qualification: AEC-Q200
• Physical dimensions and termination count

The ERJ-12SF7151U from Panasonic Electronic Components meets all electrical and mechanical specifications for direct substitution. Both parts share identical resistance, tolerance, power rating, package, composition, temperature characteristics, and automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The RK73H2HTTE7151F is the primary selection for new designs due to its active product status and RoHS3 compliance. The ERJ-12SF7151U from Panasonic provides electrical and mechanical equivalence but carries a "Not For New Designs" status and does not meet RoHS3 requirements. The Panasonic part is suitable only for legacy system support, repair, or applications where RoHS compliance is not mandated. For ongoing production and new design implementations, the KOA Speer RK73H2HTTE7151F remains the specified component.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF7151U be used as a direct replacement for RK73H2HTTE7151F?

A: The ERJ-12SF7151U meets all electrical and mechanical specifications for direct substitution. Both parts share identical resistance (7.15 kOhms), tolerance (±1%), power rating (0.75W), package (2010), composition (thick film), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and AEC-Q200 automotive qualification. Physical dimensions and termination count are identical.

Q: What is the difference in product status between these parts?

A: The RK73H2HTTE7151F is in active production, while the ERJ-12SF7151U is marked "Not For New Designs." This designation indicates that Panasonic is not recommending the ERJ-12SF7151U for new product development, though the part remains available for existing applications.

Q: Are there RoHS compliance differences?

A: Yes. The RK73H2HTTE7151F is RoHS3 compliant, while the ERJ-12SF7151U is RoHS non-compliant. For applications requiring RoHS compliance, the KOA Speer part is the appropriate selection.

Q: Will the 2010 package dimensions fit the same PCB footprint?

A: Yes. Both parts use the identical 2010 (5025 Metric) package with dimensions of 0.197" L × 0.098" W (5.00mm × 2.50mm) and maximum seated height of 0.028" (0.70mm). PCB footprints are interchangeable.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the RK73H2HTTE7151F and ERJ-12SF7151U carry AEC-Q200 automotive qualification and are rated for the same operating temperature range of -55°C to 155°C.