Equivalent & Substitute Parts for RK73H1HTTC2552F

Part Overview

The RK73H1HTTC2552F is a 25.5 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0201 package format with 0.05W power rating. This component is rated for automotive applications under AEC-Q200 standard and features moisture-resistant construction suitable for harsh operating environments.

The RK73H1HTTC2552F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and transition to active product alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73H1HTTC2552F

KOA Speer Electronics, Inc.In Stock: 10887RK73H1HTTC2552F Datasheet

Current PartRFQ

RK73H1HTTCM2552F

KOA Speer Electronics, Inc.In Stock: 1173RK73H1HTTCM2552F Datasheet

MFR RecommendedRFQ

AC0201FR-0725K5L

YAGEOIn Stock: 797AC0201FR-0725K5L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2552F are qualified based on strict electrical and mechanical parameter matching:

Substitution Criteria:

• Resistance value: 25.5 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive rating: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

Identified Substitutes:

1. RK73H1HTTCM2552F (KOA Speer Electronics, Inc.) – Manufacturer-recommended substitute. Active product status. Identical electrical specifications. Differs only in packaging designation and moisture-resistant feature classification.

2. AC0201FR-0725K5L (YAGEO) – Direct cross-reference substitute. Active product status. Meets all electrical and mechanical parameters. Alternative manufacturer source for supply chain redundancy.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: Use RK73H1HTTCM2552F or AC0201FR-0725K5L. Both are active products with full compliance to ROHS3, AEC-Q200 automotive standards, and MSL 1 moisture sensitivity ratings. RK73H1HTTCM2552F maintains KOA Speer Electronics manufacturer continuity. AC0201FR-0725K5L provides alternative sourcing from YAGEO with identical electrical performance.

For Existing Designs Using RK73H1HTTC2552F: Direct substitution with RK73H1HTTCM2552F is recommended as the primary option due to identical manufacturer lineage and specifications. AC0201FR-0725K5L serves as a secondary alternative for supply chain diversification. Both substitutes maintain full compatibility with existing circuit designs and PCB layouts.

Compliance Considerations: All three parts meet ROHS3 compliance and AEC-Q200 automotive qualification. MSL 1 rating ensures unlimited shelf life without moisture bake-out requirements. Temperature coefficient and operating range specifications are identical across all options.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2552F be used as a direct replacement for RK73H1HTTC2552F?

A: Yes. RK73H1HTTCM2552F is the manufacturer-recommended substitute. All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating range) are identical. Both components are 0201 package thick film resistors with AEC-Q200 automotive rating and ROHS3 compliance. The primary difference is product status: RK73H1HTTCM2552F is active while RK73H1HTTC2552F is not for new designs.

Q: What is the difference between RK73H1HTTC2552F and AC0201FR-0725K5L?

A: Both parts are functionally equivalent 25.5 kOhms ±1% 0.05W 0201 thick film resistors with AEC-Q200 rating. The primary difference is manufacturer: KOA Speer Electronics versus YAGEO. Both meet identical electrical specifications, temperature performance, and compliance requirements. AC0201FR-0725K5L provides an alternative sourcing option for supply chain flexibility.

Q: Are there any package or footprint differences between these substitutes?

A: No. All three parts use the 0201 (0603 Metric) package with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are interchangeable.

Q: Do all substitutes meet automotive AEC-Q200 qualification?

A: Yes. RK73H1HTTC2552F, RK73H1HTTCM2552F, and AC0201FR-0725K5L all carry AEC-Q200 automotive qualification. All are suitable for automotive applications requiring this standard.

Q: What is the moisture sensitivity level for these parts?

A: All three parts are rated MSL 1 (Unlimited). This means they have unlimited shelf life and do not require moisture bake-out procedures prior to soldering, regardless of storage duration or environmental conditions.

Q: Can I use AC0201FR-0725K5L in place of the original RK73H1HTTC2552F?

A: Yes. AC0201FR-0725K5L meets all electrical and mechanical specifications required for direct substitution. It is an active product with full AEC-Q200 and ROHS3 compliance. Use this part when KOA Speer Electronics components are unavailable or when supply chain diversification is required.