RK73H1HTTC3003D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3003D is a 300 kOhms ±0.5% chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package format. This component is rated for 0.05W (1/20W) power dissipation and features automotive-grade AEC-Q200 qualification with moisture-resistant thick film construction. The part is currently classified as "Not For New Designs," which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73H1HTTC3003D

KOA Speer Electronics, Inc.In Stock: 892RK73H1HTTC3003D Datasheet

Current PartRFQ

RK73H1HTTCM3003D

KOA Speer Electronics, Inc.In Stock: 733RK73H1HTTCM3003D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3003D is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (300 kOhms), tolerance (±0.5%), power rating (0.05W), and temperature coefficient (±200ppm/°C) must be identical.

Mechanical Parameters: Package format (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and number of terminations (2) must match exactly.

Compliance & Environmental Parameters: AEC-Q200 automotive qualification, RoHS3 compliance, MSL 1 rating, and operating temperature range (-55°C ~ 155°C) must be maintained.

Composition: Thick film construction is required for functional equivalence.

The substitute part RK73H1HTTCM3003D meets all these criteria and is classified as an active product, making it suitable for new designs and ongoing production applications.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM3003D is the direct equivalent substitute for the RK73H1HTTC3003D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and share identical electrical, mechanical, and environmental specifications. The primary distinction is product status: the original part is designated "Not For New Designs," while the substitute maintains active production status.

For applications requiring the 300 kOhms ±0.5% 0.05W 0201 package resistor with AEC-Q200 automotive qualification, the RK73H1HTTCM3003D provides full functional and physical compatibility. Both parts maintain ROHS3 compliance, MSL 1 moisture sensitivity rating, and identical operating temperature ranges (-55°C ~ 155°C). The substitute part is suitable for direct replacement in existing designs and for new design implementations.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM3003D be used as a direct replacement for the RK73H1HTTC3003D?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (300 kOhms), tolerance (±0.5%), power rating (0.05W), package format (0201), and automotive certifications (AEC-Q200). The substitute part is actively produced and suitable for direct substitution.

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

A: The original part RK73H1HTTC3003D is classified as "Not For New Designs," indicating that KOA Speer Electronics, Inc. is transitioning away from this specific variant. The substitute RK73H1HTTCM3003D maintains active production status and is the recommended choice for new design implementations and ongoing production requirements.

Q: Are there any differences in packaging or handling requirements?

A: Both parts use identical 0201 (0603 Metric) package specifications with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and height (0.010" / 0.26mm). Both maintain MSL 1 (Unlimited) moisture sensitivity rating, requiring no special storage or handling precautions beyond standard component practices.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the RK73H1HTTC3003D and RK73H1HTTCM3003D carry AEC-Q200 automotive qualification and are ROHS3 compliant. They are suitable for automotive applications requiring these certifications.

Q: What is the temperature coefficient specification, and does it differ between the two parts?

A: Both parts specify a temperature coefficient of ±200ppm/°C and operate across the identical temperature range of -55°C ~ 155°C. There is no difference in thermal performance characteristics between the two components.