RK73H1HTTC2103D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2103D is a 210 kOhms ±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 RK73H1HTTC2103D carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this model out of active production. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support existing inventory management for applications currently utilizing this resistor.

Substiute Parts

RK73H1HTTC2103D

KOA Speer Electronics, Inc.In Stock: 1127RK73H1HTTC2103D Datasheet

Current PartRFQ

RK73H1HTTCM2103D

KOA Speer Electronics, Inc.In Stock: 1017RK73H1HTTCM2103D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC2103D is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 210 kOhms
• Tolerance: ±0.5%
• Power rating: 0.05W (1/20W)
• Package format: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive certification: AEC-Q200
• Moisture sensitivity level: MSL 1
• RoHS compliance: ROHS3

Substitute parts must maintain identical electrical characteristics and environmental ratings. Physical dimensions, termination count, and regulatory compliance must remain unchanged. Substitution is valid only when all parameters align with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM2103D is the direct equivalent substitute for the RK73H1HTTC2103D. Both components are manufactured by KOA Speer Electronics within the RK73H series and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product lifecycle status. The RK73H1HTTC2103D is designated "Not For New Designs," indicating end-of-life status within KOA's product portfolio. The RK73H1HTTCM2103D carries "Active" status, confirming ongoing production and availability through authorized distribution channels.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance mandates, and MSL 1 moisture sensitivity specifications. Electrical performance, thermal characteristics, and environmental operating ranges are identical. Physical footprint and PCB assembly compatibility remain unchanged.

For applications currently specified with RK73H1HTTC2103D, direct substitution with RK73H1HTTCM2103D is valid without circuit redesign or performance degradation. The active production status of the substitute part ensures long-term supply chain continuity and component availability.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2103D be used as a direct replacement for RK73H1HTTC2103D in existing designs?

A: Yes. Both components are electrically and mechanically identical. All critical parameters including resistance, tolerance, power rating, package format, temperature coefficient, and automotive certification match exactly. The substitute part is manufactured by the same supplier within the same product series.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: This designation indicates that KOA Speer Electronics has discontinued active production of the RK73H1HTTC2103D and recommends using alternative models for new product development. The RK73H1HTTCM2103D, with "Active" status, represents the current production equivalent.

Q: Are there any differences in packaging or delivery format between these parts?

A: The main part is specified as Tape & Reel (TR) packaging. The substitute part does not specify packaging format in the provided data. Both components use identical 0201 package format. Confirm packaging requirements with your supplier before procurement.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73H1HTTC2103D and RK73H1HTTCM2103D carry AEC-Q200 automotive qualification and are rated for -55°C to 155°C operating temperature range, suitable for automotive and harsh environment applications.

Q: Is there any difference in moisture sensitivity or environmental compliance?

A: No. Both parts are MSL 1 (Unlimited moisture sensitivity level), ROHS3 compliant, and REACH unaffected. Environmental handling and storage requirements are identical.

Q: What is the basis for confirming substitution compatibility?

A: Substitution is confirmed through exact matching of all electrical parameters (resistance, tolerance, power rating, temperature coefficient), mechanical specifications (package, dimensions, terminations), and regulatory certifications (AEC-Q200, RoHS, MSL). Both parts are from the same manufacturer and product series.