Equivalent & Substitute Parts for RK73H1HTTC3322D

Part Overview

The RK73H1HTTC3322D is a 33.2 kOhms ±0.5% thick film chip resistor in 0201 package (0603 metric) rated for 0.05W (1/20W) power dissipation. This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part carries a "Not For New Designs" status, indicating it has been superseded in the manufacturer's product line.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 meet identical electrical and mechanical specifications.

Substiute Parts

RK73H1HTTC3322D

KOA Speer Electronics, Inc.In Stock: 811RK73H1HTTC3322D Datasheet

Current PartRFQ

RK73H1HTTCM3322D

KOA Speer Electronics, Inc.In Stock: 909RK73H1HTTCM3322D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3322D is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Resistance value: 33.2 kOhms (exact match required)
• Tolerance: ±0.5% (precision class must be maintained)
• Power rating: 0.05W minimum (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to +155°C minimum

Mechanical Parameters (Non-Negotiable):

• Package: 0201 (0603 Metric) form factor
• Composition: Thick film construction
• Number of terminations: 2

Compliance & Certification (Required for Automotive Applications):

• AEC-Q200 automotive qualification
• ROHS3 compliance
• MSL 1 rating

Product Status Consideration: Substitute parts must be in "Active" product status to ensure long-term availability and continued manufacturer support, distinguishing them from obsolete or discontinued alternatives.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RK73H1HTTCM3322D

The RK73H1HTTCM3322D is the direct equivalent substitute for the RK73H1HTTC3322D. Both components are manufactured by KOA Speer Electronics within the RK73H series and share identical electrical, mechanical, and compliance specifications. The critical distinction is product status: the RK73H1HTTCM3322D maintains "Active" status, ensuring ongoing manufacturer support, continued availability, and compliance with current automotive and environmental standards.

Substitution Basis:

• All electrical parameters match exactly (33.2 kOhms, ±0.5%, 0.05W, ±200ppm/°C, -55°C to +155°C)
• Physical form factor is identical (0201 package, 0.60mm x 0.30mm, 0.26mm max height)
• Automotive qualification (AEC-Q200) is maintained
• Environmental compliance (ROHS3, REACH Unaffected, MSL 1) is preserved
• Thick film composition and 2-termination configuration are unchanged

Selection Rationale: For new designs or ongoing production requiring the 33.2 kOhms ±0.5% 0.05W 0201 resistor with automotive qualification, the RK73H1HTTCM3322D is the appropriate choice. The transition from the "Not For New Designs" RK73H1HTTC3322D to the active RK73H1HTTCM3322D ensures design compliance with current manufacturer recommendations and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3322D be used as a direct replacement for RK73H1HTTC3322D in existing designs?

A: Yes. The RK73H1HTTCM3322D is electrically and mechanically identical to the RK73H1HTTC3322D. All critical parameters—resistance value, tolerance, power rating, package dimensions, temperature range, and automotive certification—are equivalent. No circuit redesign or PCB layout modification is required.

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

A: The primary difference is product lifecycle status. The RK73H1HTTC3322D is designated "Not For New Designs," indicating it has been superseded. The RK73H1HTTCM3322D is the active equivalent in the manufacturer's current product line. Both parts meet identical specifications and are suitable for automotive applications requiring AEC-Q200 qualification.

Q: Are there any packaging differences between these parts?

A: Both components 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 of 0.010" (0.26mm). They are mechanically interchangeable on PCBs designed for 0201 resistors.

Q: Do both parts meet automotive standards?

A: Yes. Both the RK73H1HTTC3322D and RK73H1HTTCM3322D carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability and performance standards. Both are suitable for automotive applications within the specified operating temperature range of -55°C to +155°C.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts have MSL 1 (Unlimited) rating, the lowest moisture sensitivity classification. This means they have unlimited shelf life under normal storage conditions and do not require special moisture-control handling procedures during assembly or storage.

Q: Are both parts RoHS compliant?

A: Yes. Both the RK73H1HTTC3322D and RK73H1HTTCM3322D are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: Why should I transition to RK73H1HTTCM3322D if the current part works?

A: The RK73H1HTTC3322D carries a "Not For New Designs" status, indicating the manufacturer has transitioned this product to end-of-life. Transitioning to the active RK73H1HTTCM3322D ensures long-term supply availability, continued manufacturer support, and compliance with current product recommendations. This is particularly important for automotive applications requiring sustained component availability.