RK73H1HTTC32R4D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC32R4D is a 32.4 Ohm ±0.5% 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The RK73H1HTTC32R4D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identification of equivalent substitute parts is necessary for ongoing support of existing designs, legacy system maintenance, and procurement continuity.

Substiute Parts

RK73H1HTTC32R4D

KOA Speer Electronics, Inc.In Stock: 890RK73H1HTTC32R4D Datasheet

Current PartRFQ

RK73H1HTTCM32R4D

KOA Speer Electronics, Inc.In Stock: 947RK73H1HTTCM32R4D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC32R4D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 32.4 Ohms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Certification:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Only parts meeting all specified parameters across electrical, mechanical, and compliance categories qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM32R4D qualifies as a direct substitute for the RK73H1HTTC32R4D based on complete electrical and mechanical parameter equivalence. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and maintain identical specifications across resistance, tolerance, power rating, package format, temperature characteristics, and automotive compliance ratings.

The primary distinction between these parts is product status: the RK73H1HTTC32R4D is designated "Not For New Designs," while the RK73H1HTTCM32R4D carries "Active" status. This indicates the RK73H1HTTCM32R4D represents the current production equivalent and is the recommended selection for ongoing procurement and design support.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1), making them suitable for equivalent application in automotive and industrial environments operating across the -55°C to 155°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM32R4D be used as a direct replacement for the RK73H1HTTC32R4D?

A: Yes. The RK73H1HTTCM32R4D meets all electrical, mechanical, and compliance specifications of the RK73H1HTTC32R4D. Both components share identical resistance (32.4 Ohms), tolerance (±0.5%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive certification.

Q: What is the significance of the product status difference?

A: The RK73H1HTTC32R4D is marked "Not For New Designs," indicating the manufacturer has transitioned this part to end-of-life status. The RK73H1HTTCM32R4D carries "Active" status, confirming it is in current production and represents the manufacturer's recommended equivalent for ongoing applications.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in 0201 package format (0603 Metric) with identical physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are mechanically interchangeable in PCB layouts designed for 0201 components.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the RK73H1HTTC32R4D and RK73H1HTTCM32R4D are rated to AEC-Q200 automotive standards and feature moisture-resistant thick film construction suitable for automotive and harsh industrial environments.

Q: Are there compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, classified under ECCN EAR99, and carry identical HTSUS code 8533.21.0030. Moisture Sensitivity Level is 1 (Unlimited) for both components.