RK73H1HTTC3300D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3300D is a 330 Ohm ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC3300D carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part to end-of-life status. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this resistor is currently deployed.

Substiute Parts

RK73H1HTTC3300D

KOA Speer Electronics, Inc.In Stock: 1024RK73H1HTTC3300D Datasheet

Current PartRFQ

RK73H1HTTCM3300D

KOA Speer Electronics, Inc.In Stock: 1071RK73H1HTTCM3300D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3300D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 330 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 satisfy all parameters listed above. Parts that differ in any of these specifications are not considered equivalent and do not qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM3300D is the direct equivalent substitute for the RK73H1HTTC3300D. Both parts are manufactured by KOA Speer Electronics, Inc., and share identical electrical, mechanical, and compliance specifications across all critical parameters.

The primary distinction between these parts is product status: the RK73H1HTTC3300D is designated "Not For New Designs," while the RK73H1HTTCM3300D carries "Active" status. This status difference reflects KOA Speer Electronics' product lifecycle management and indicates that the RK73H1HTTCM3300D is the current production equivalent within the RK73H series.

Both parts maintain full AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating. Electrical performance, thermal characteristics, and mechanical dimensions are identical. The RK73H1HTTCM3300D is suitable for direct replacement in applications currently using the RK73H1HTTC3300D, with no circuit redesign or validation required.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM3300D be used as a direct replacement for the RK73H1HTTC3300D in existing designs?

A: Yes. The RK73H1HTTCM3300D is electrically and mechanically identical to the RK73H1HTTC3300D. All critical parameters—resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range—are equivalent. Both parts meet AEC-Q200 automotive qualification and ROHS3 compliance requirements. Direct substitution is valid without circuit modification.

Q: What is the significance of the "Not For New Designs" status on the RK73H1HTTC3300D?

A: "Not For New Designs" indicates that KOA Speer Electronics has transitioned this part number to end-of-life status and is no longer recommending it for new product development. The RK73H1HTTCM3300D, with "Active" status, is the current production equivalent. For ongoing production support and new applications, the RK73H1HTTCM3300D should be specified.

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

A: Both parts are supplied in 0201 (0603 Metric) package format with identical physical dimensions (0.024" L x 0.012" W, 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). Both carry MSL 1 (Unlimited) moisture sensitivity rating, requiring identical storage and handling procedures. No packaging differences exist.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the RK73H1HTTC3300D and RK73H1HTTCM3300D are AEC-Q200 qualified, meeting automotive industry reliability and performance standards. Both are suitable for automotive applications requiring this certification level.

Q: What is the temperature coefficient specification, and is it identical between both parts?

A: Both parts specify a temperature coefficient of ±200ppm/°C with an operating temperature range of -55°C to 155°C. This specification is identical and ensures equivalent thermal performance across the full operating range.

Q: Are both parts RoHS compliant?

A: Yes. Both the RK73H1HTTC3300D and RK73H1HTTCM3300D are ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions in electronic components.