Equivalent & Substitute Parts for RK73H1HTTC2703F

Part Overview

The RK73H1HTTC2703F is a 270 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). This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction.

The RK73H1HTTC2703F carries a "Not For New Designs" status, indicating it has been superseded. Identifying equivalent and substitute parts is necessary to support existing designs, manage inventory transitions, and ensure continued supply chain availability for production and maintenance applications.

Substiute Parts

RK73H1HTTC2703F

KOA Speer Electronics, Inc.In Stock: 32773RK73H1HTTC2703F Datasheet

Current PartRFQ

RK73H1HTTCM2703F

KOA Speer Electronics, Inc.In Stock: 1060RK73H1HTTCM2703F Datasheet

MFR RecommendedRFQ

AC0201FR-07270KL

YAGEOIn Stock: 732AC0201FR-07270KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2703F are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Resistance value: 270 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical & Compliance Criteria:

• Package type: 0201 (0603 Metric)
• Composition: Thick Film
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1

Substitute parts are grouped into two categories:

Category 1: Manufacturer Equivalent (KOA Speer Electronics)

• RK73H1HTTCM2703F: Active product status variant within the same RK73H series, maintaining identical electrical and mechanical specifications with current production support.

Category 2: Cross-Manufacturer Substitute (YAGEO)

• AC0201FR-07270KL: Direct functional equivalent from YAGEO's AC series, meeting all electrical, mechanical, and compliance requirements with active product status.

Parameter Comparison

Engineering Selection Recommendations

For Existing Production Support: The RK73H1HTTCM2703F is the primary recommended substitute. As an active product from the same manufacturer (KOA Speer Electronics) within the RK73H series, it maintains full electrical and mechanical compatibility with the obsolete RK73H1HTTC2703F. Both parts share identical resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. The RK73H1HTTCM2703F carries active product status, ensuring continued availability and supply chain support.

For Cross-Manufacturer Flexibility: The AC0201FR-07270KL from YAGEO provides a qualified alternative when KOA supply is constrained. This part meets all electrical specifications (270 kOhms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and mechanical requirements (0201 package, thick film composition). It carries AEC-Q200 automotive qualification, moisture-resistant construction, ROHS3 compliance, and MSL 1 rating. The AC0201FR-07270KL is in active production status with documented inventory availability.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and AEC-Q200 automotive qualification, ensuring regulatory and quality standards are preserved. MSL 1 rating across all parts eliminates moisture sensitivity concerns for storage and handling.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2703F be used as a direct replacement for RK73H1HTTC2703F?

A: Yes. The RK73H1HTTCM2703F is a direct functional equivalent. Both parts share identical electrical parameters (270 kOhms ±1%, 0.05W, ±200ppm/°C), mechanical specifications (0201 package, 0.60mm x 0.30mm), and automotive qualifications (AEC-Q200). The primary difference is product status: RK73H1HTTCM2703F is active, while RK73H1HTTC2703F is not for new designs.

Q: What are the key differences between KOA and YAGEO substitutes?

A: Both the RK73H1HTTCM2703F (KOA) and AC0201FR-07270KL (YAGEO) meet identical electrical and mechanical specifications. The RK73H1HTTCM2703F is preferred for existing KOA-qualified designs due to manufacturer continuity. The AC0201FR-07270KL provides cross-manufacturer flexibility and is suitable when KOA availability is limited. Both carry AEC-Q200 qualification and ROHS3 compliance.

Q: Are there packaging differences between these parts?

A: All three parts use the 0201 package (0603 Metric) with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). Packaging is functionally equivalent across all substitutes.

Q: Do these substitutes maintain automotive qualification?

A: Yes. All substitute parts carry AEC-Q200 automotive qualification, matching the original RK73H1HTTC2703F. This qualification is preserved across both the KOA equivalent and YAGEO cross-manufacturer substitute.

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

A: All parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity concerns. Storage and handling do not require special moisture control measures.

Q: Can AC0201FR-07270KL be used in designs originally specified for RK73H1HTTC2703F?

A: Yes. The AC0201FR-07270KL meets all electrical parameters (270 kOhms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C), mechanical specifications (0201 package), and compliance requirements (AEC-Q200, ROHS3, MSL 1). It is a qualified cross-manufacturer substitute.