RK73B1HTTC335G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC335G is a 3.3 MOhms ±2% thick film chip resistor in 0201 package format, rated for 0.05W (1/20W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and meets AEC-Q200 automotive qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

RK73B1HTTC335G

KOA Speer Electronics, Inc.In Stock: 1075RK73B1HTTC335G Datasheet

Current PartRFQ

RK73B1HTTCM335G

KOA Speer Electronics, Inc.In Stock: 1020RK73B1HTTCM335G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC335G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 3.3 MOhms (exact match required)
• Tolerance: ±2% (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 format: 0201 (0603 Metric) (exact match required)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Maximum seated height: 0.010" (0.26mm) (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Quality Parameters:

• Composition: Thick Film (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (Unlimited) (exact match required)

Substitute parts must satisfy all parameters listed above. The primary distinction between the main part and its substitute is product status: the main part is classified as "Not For New Designs," while active substitutes remain in current production.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM335G is the manufacturer-recommended substitute for the RK73B1HTTC335G. Both parts are electrically and mechanically identical across all specified parameters. The primary distinction is product lifecycle status: the RK73B1HTTC335G is designated "Not For New Designs," while the RK73B1HTTCM335G maintains "Active" status in the manufacturer's current product portfolio.

For new design implementations, the RK73B1HTTCM335G is the appropriate selection. Both parts maintain identical AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating, ensuring equivalent performance in automotive and industrial applications requiring high-resistance, low-power thick film resistors in 0201 package format.

Existing designs utilizing the RK73B1HTTC335G can transition to the RK73B1HTTCM335G without circuit modification, as all electrical characteristics, thermal performance, and mechanical fit remain unchanged.

Frequently Asked Questions (FAQ)

Q: What is the primary reason for substituting RK73B1HTTC335G with RK73B1HTTCM335G?

A: The RK73B1HTTC335G is classified as "Not For New Designs" by the manufacturer, indicating end-of-life status. The RK73B1HTTCM335G is the active equivalent that maintains identical electrical and mechanical specifications while remaining in current production.

Q: Are these parts pin-compatible and footprint-compatible?

A: Yes. Both parts use the 0201 (0603 Metric) package with identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). They are directly interchangeable on PCB layouts without modification.

Q: Do both parts meet the same automotive qualification standards?

A: Yes. Both RK73B1HTTC335G and RK73B1HTTCM335G are AEC-Q200 qualified, meeting automotive industry reliability and performance requirements.

Q: What is the difference in packaging between these parts?

A: The main part specifies "Tape & Reel (TR)" packaging. The substitute part does not specify packaging format in the provided data. Contact the manufacturer or authorized distributor to confirm packaging availability for the RK73B1HTTCM335G if specific packaging requirements exist.

Q: Are there any differences in environmental compliance?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level), indicating identical environmental and regulatory compliance.

Q: Can I use RK73B1HTTCM335G as a direct replacement in existing production?

A: Yes. The substitute part is electrically and mechanically equivalent. Existing designs using RK73B1HTTC335G can transition to RK73B1HTTCM335G without circuit redesign or performance impact.