RK73H2HTTE9530F Equivalent & Substitute Parts

Part Overview

The RK73H2HTTE9530F is a 953 Ohm ±1% thick film chip resistor rated at 0.75W (3/4W) in a 2010 (5025 Metric) package. Manufactured by KOA Speer Electronics, Inc., this component meets automotive AEC-Q200 qualification and includes moisture-resistant construction suitable for demanding environments. The part is currently in active production status with 698 units available in inventory.

Identifying equivalent and substitute parts becomes necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits component standardization across multiple suppliers while maintaining identical electrical and mechanical performance.

Substiute Parts

RK73H2HTTE9530F

KOA Speer Electronics, Inc.In Stock: 774RK73H2HTTE9530F Datasheet

Current PartRFQ

ERJ-12SF9530U

Panasonic Electronic ComponentsIn Stock: 990ERJ-12SF9530U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H2HTTE9530F are qualified based on strict equivalence across the following parameters:

• Resistance value: 953 Ohms
• Tolerance: ±1%
• Power rating: 0.75W (3/4W)
• Package type: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Automotive qualification: AEC-Q200
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

The ERJ-12SF9530U from Panasonic Electronic Components meets all these electrical and mechanical parameters, establishing it as a parametric equivalent. Substitution is valid only when all listed parameters match exactly.

Parameter Comparison

Engineering Selection Recommendations

The RK73H2HTTE9530F maintains active production status with established supply availability. The ERJ-12SF9530U provides electrical and mechanical equivalence but carries a "Not For New Designs" designation, indicating Panasonic has discontinued active development for this part number.

For new designs, the RK73H2HTTE9530F is the preferred selection due to its active product status and ongoing manufacturer support. The ERJ-12SF9530U is suitable for legacy system maintenance, field replacements, or applications where existing inventory must be utilized, provided the "Not For New Designs" status aligns with project requirements.

Both parts satisfy identical compliance requirements: AEC-Q200 automotive qualification, ROHS3 compliance, and REACH unaffected status. Selection between these parts should be based on supply chain strategy, production timeline, and long-term component availability planning.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF9530U be used as a direct replacement for RK73H2HTTE9530F in automotive applications?

A: Yes, the ERJ-12SF9530U meets all electrical and mechanical specifications required for direct substitution, including AEC-Q200 automotive qualification, identical resistance, tolerance, power rating, and package dimensions. However, the "Not For New Designs" status should be considered for long-term supply planning.

Q: Are there dimensional differences between these parts?

A: No. Both parts use the 2010 (5025 Metric) package with identical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) and maximum seated height of 0.028" (0.70mm).

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both the RK73H2HTTE9530F and ERJ-12SF9530U carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: What does "Not For New Designs" mean for the Panasonic part?

A: This designation indicates that Panasonic has discontinued active development and marketing of the ERJ-12SF9530U. While existing inventory may be available, the manufacturer does not recommend this part for new product designs. The part remains suitable for legacy system support and field replacements.

Q: Are both parts RoHS compliant?

A: Yes. Both the RK73H2HTTE9530F and ERJ-12SF9530U are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.