RK73H1HTTC34R0D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC34R0D is a 34 Ohm ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated for 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC34R0D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this resistor is currently specified.

Substiute Parts

RK73H1HTTC34R0D

KOA Speer Electronics, Inc.In Stock: 1182RK73H1HTTC34R0D Datasheet

Current PartRFQ

RK73H1HTTCM34R0D

KOA Speer Electronics, Inc.In Stock: 788RK73H1HTTCM34R0D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC34R0D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 34 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 / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level MSL 1 (required for handling and storage compatibility)

Substitute parts must maintain identical electrical and mechanical specifications. Variations in product status (Active vs. Not For New Designs) do not affect functional equivalence but indicate manufacturing lifecycle position.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM34R0D is a direct functional equivalent to the RK73H1HTTC34R0D. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73H series and share identical electrical, mechanical, and thermal specifications.

The primary distinction is product lifecycle status: the RK73H1HTTC34R0D is designated "Not For New Designs," while the RK73H1HTTCM34R0D carries "Active" status. This indicates the RK73H1HTTCM34R0D represents the current production equivalent within the manufacturer's active portfolio.

Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating, ensuring compatibility with automotive and industrial applications requiring these certifications. The substitute part is suitable for direct replacement in existing designs and for new production where the RK73H1HTTC34R0D specification is currently referenced.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM34R0D be used as a direct replacement for the RK73H1HTTC34R0D?

A: Yes. The RK73H1HTTCM34R0D is electrically and mechanically identical to the RK73H1HTTC34R0D across all critical parameters: 34 Ohm resistance, ±0.5% tolerance, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. Both maintain AEC-Q200 qualification and ROHS3 compliance.

Q: Why is the RK73H1HTTC34R0D marked "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's active product line. The RK73H1HTTCM34R0D represents the current production equivalent. Existing designs using the RK73H1HTTC34R0D can transition to the substitute without functional impact.

Q: Are there any differences in packaging or handling between these two parts?

A: Both components share identical physical dimensions (0.024" L x 0.012" W, 0.60mm x 0.30mm) and height specifications (0.010" max seated height). Both carry MSL 1 rating, requiring no special moisture control during storage or handling.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the RK73H1HTTC34R0D and RK73H1HTTCM34R0D are AEC-Q200 qualified, suitable for automotive applications. Both are ROHS3 compliant and REACH unaffected.

Q: What is the difference between the part numbers RK73H1HTTC34R0D and RK73H1HTTCM34R0D?

A: The part numbers differ only in the suffix designation (C vs. CM). This variation reflects the manufacturer's internal product lifecycle management. The electrical and mechanical specifications remain identical.