Equivalent & Substitute Parts for RK73H1HTTC6342D

Part Overview

The RK73H1HTTC6342D is a 63.4 kOhms ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package. This component is rated for automotive applications under AEC-Q200 and features moisture-resistant construction with a power rating of 0.05W (1/20W). The part is currently marked as "Not For New Designs," indicating it has been superseded. Identification of equivalent substitute parts is necessary to ensure design continuity and maintain compliance with automotive and environmental standards while transitioning to active product lines.

Substiute Parts

RK73H1HTTC6342D

KOA Speer Electronics, Inc.In Stock: 9492RK73H1HTTC6342D Datasheet

Current PartRFQ

RK73H1HTTCM6342D

KOA Speer Electronics, Inc.In Stock: 1033RK73H1HTTCM6342D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC6342D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 63.4 kOhms (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 & Package Parameters:

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

Compliance & Environmental Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: MSL 1 (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 RK73H1HTTCM6342D is the direct substitute for RK73H1HTTC6342D. Both parts are manufactured by KOA Speer Electronics, Inc. and share identical electrical, mechanical, and compliance specifications. The primary distinction is product status: the original part is marked "Not For New Designs," while the substitute is classified as "Active."

For applications currently using RK73H1HTTC6342D, transition to RK73H1HTTCM6342D is supported by:

• Identical resistance, tolerance, and power rating specifications
• Matching AEC-Q200 automotive qualification
• Equivalent thermal performance (±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range)
• Identical package dimensions and termination configuration (0201 / 0603 Metric)
• Full ROHS3 compliance and MSL 1 moisture sensitivity rating
• Maintained REACH and export classification equivalence

The substitute part maintains all functional and environmental compliance requirements necessary for automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM6342D be used as a direct replacement for RK73H1HTTC6342D in existing designs?

A: Yes. Both parts meet identical electrical specifications (63.4 kOhms ±0.5%, 0.05W), thermal performance (±200ppm/°C, -55°C ~ 155°C), package dimensions (0201 / 0603 Metric), and automotive compliance (AEC-Q200). The substitute is functionally equivalent for all circuit applications.

Q: What is the difference between these two part numbers?

A: The parts are electrically and mechanically identical. The primary difference is product lifecycle status: RK73H1HTTC6342D is marked "Not For New Designs," while RK73H1HTTCM6342D is an active product. The substitute incorporates the same thick film construction and moisture-resistant properties.

Q: Are there any package or footprint differences?

A: No. Both parts use the 0201 (0603 Metric) package with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints are interchangeable.

Q: Do both parts meet automotive standards?

A: Yes. Both RK73H1HTTC6342D and RK73H1HTTCM6342D are AEC-Q200 qualified for automotive applications and maintain ROHS3 compliance with MSL 1 moisture sensitivity rating.

Q: Is the tolerance specification the same?

A: Yes. Both parts are specified at ±0.5% tolerance, ensuring equivalent circuit performance and precision requirements.

Q: What is the temperature coefficient difference?

A: There is no difference. Both parts have a temperature coefficient of ±200ppm/°C and operate across the identical range of -55°C ~ 155°C.