Equivalent & Substitute Parts for RK73H1HTTC7502F

Part Overview

The RK73H1HTTC7502F is a 75 kOhm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0.60mm x 0.30mm metric). This component meets AEC-Q200 automotive qualification standards and features moisture-resistant construction suitable for automotive and industrial applications operating across -55°C to 155°C.

The RK73H1HTTC7502F carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to support existing designs, manage inventory transitions, and ensure supply chain continuity for production and maintenance applications.

Substiute Parts

RK73H1HTTC7502F

KOA Speer Electronics, Inc.In Stock: 52421RK73H1HTTC7502F Datasheet

Current PartRFQ

RK73H1HTTCM7502F

KOA Speer Electronics, Inc.In Stock: 750RK73H1HTTCM7502F Datasheet

MFR RecommendedRFQ

AC0201FR-0775KL

YAGEOIn Stock: 15124AC0201FR-0775KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC7502F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 75 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

Substitute parts must satisfy all mandatory parameters without exception. Manufacturer identity does not restrict substitution when all electrical and mechanical specifications align. The identified substitutes are grouped into two categories: manufacturer-recommended alternatives and direct cross-reference equivalents.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM7502F (KOA Speer Electronics, Inc.):

This part is the manufacturer-recommended successor within the KOA RK73H series. It maintains identical electrical specifications and AEC-Q200 automotive qualification. The primary distinction is active product status, ensuring long-term availability and supply chain support. This substitute is appropriate for applications requiring continuity within the KOA product ecosystem. Note that moisture-resistant designation is not specified for this variant; applications requiring explicit moisture resistance should reference the original part's moisture-resistant feature set.

AC0201FR-0775KL (YAGEO):

This part provides direct electrical and mechanical equivalence with the RK73H1HTTC7502F, including AEC-Q200 qualification, moisture-resistant construction, and identical package specifications. YAGEO AC series thick film resistors are established alternatives in automotive and industrial applications. This substitute supports supply diversification and is suitable for applications where multi-source component strategies are required. Active product status ensures sustained availability.

Both substitutes satisfy all mandatory electrical and mechanical parameters. Selection between them depends on supply chain requirements, existing vendor relationships, and packaging specifications for production workflows.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM7502F replace RK73H1HTTC7502F in existing designs?

A: Yes. Both parts share identical resistance (75 kOhms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 qualification. The primary difference is product status; RK73H1HTTCM7502F is active, supporting ongoing production. Moisture-resistant designation differs between the two; verify application requirements if moisture resistance is critical.

Q: Is AC0201FR-0775KL a direct substitute for RK73H1HTTC7502F?

A: Yes. AC0201FR-0775KL matches all critical parameters: 75 kOhms ±1%, 0.05W, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 qualification, and moisture-resistant construction. The manufacturer difference (YAGEO vs. KOA) does not affect substitution eligibility when specifications align completely.

Q: What packaging formats are available for these substitutes?

A: RK73H1HTTC7502F and AC0201FR-0775KL are supplied in Tape & Reel (TR) format. RK73H1HTTCM7502F packaging format is not specified in available data; confirm packaging requirements with the supplier before procurement.

Q: Are all three parts RoHS compliant?

A: Yes. RK73H1HTTC7502F, RK73H1HTTCM7502F, and AC0201FR-0775KL are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for unrestricted storage and handling.

Q: Why is RK73H1HTTC7502F marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life phase. Existing designs may continue using this part; however, new designs should transition to active alternatives such as RK73H1HTTCM7502F or AC0201FR-0775KL to ensure long-term supply availability and manufacturing support.

Q: Do these resistors meet automotive standards?

A: Yes. All three parts carry AEC-Q200 qualification, meeting automotive-grade reliability and performance standards for temperature cycling, moisture resistance, and electrical stability across the -55°C ~ 155°C operating range.