Equivalent & Substitute Parts for RK73H1HTTC2152D

Part Overview

The RK73H1HTTC2152D is a 21.5 kOhms ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0201 package format with 0.05W power rating. This component is rated for automotive applications under AEC-Q200 standard and features moisture-resistant construction suitable for harsh operating environments.

The RK73H1HTTC2152D carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part to end-of-life status. For ongoing production and new design implementations, identification of active equivalent parts is necessary to ensure supply chain continuity and long-term component availability.

Substiute Parts

RK73H1HTTC2152D

KOA Speer Electronics, Inc.In Stock: 1165RK73H1HTTC2152D Datasheet

Current PartRFQ

RK73H1HTTCM2152D

KOA Speer Electronics, Inc.In Stock: 1005RK73H1HTTCM2152D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC2152D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 21.5 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 format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Certification Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: MSL 1 (exact match required)

Substitute parts must maintain identical electrical performance, physical dimensions, and regulatory compliance. Product status transitions from "Not For New Designs" to "Active" are permitted when all technical parameters remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM2152D is the direct equivalent substitute for the RK73H1HTTC2152D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and maintain identical electrical, mechanical, and compliance specifications.

The primary distinction between these parts is product lifecycle status. The RK73H1HTTC2152D is designated "Not For New Designs," while the RK73H1HTTCM2152D carries "Active" status. This transition reflects KOA Speer Electronics' product portfolio management and does not indicate any technical deficiency in the legacy part.

For applications currently using RK73H1HTTC2152D, the RK73H1HTTCM2152D provides direct functional replacement with assured long-term availability. Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and MSL 1 moisture sensitivity classification. Electrical performance, thermal characteristics, and physical dimensions are identical across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2152D be used as a direct replacement for RK73H1HTTC2152D in existing designs?

A: Yes. The RK73H1HTTCM2152D is electrically and mechanically identical to RK73H1HTTC2152D. All critical parameters including resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package dimensions, and automotive AEC-Q200 certification are equivalent. Direct substitution is supported without circuit redesign.

Q: What is the significance of the product status change from "Not For New Designs" to "Active"?

A: Product status reflects the manufacturer's lifecycle management. "Not For New Designs" indicates the part is in end-of-life phase with limited future availability. "Active" status confirms the substitute part is in current production with assured supply continuity. For new designs and ongoing production, the active part number is the appropriate selection.

Q: Are the physical dimensions and PCB footprints identical between these two part numbers?

A: Yes. Both parts use the 0201 (0603 Metric) package format with identical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are interchangeable.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73H1HTTC2152D and RK73H1HTTCM2152D are rated to AEC-Q200 automotive standard. Moisture Sensitivity Level is MSL 1 (Unlimited) for both parts, indicating no moisture-related handling restrictions. Both are ROHS3 compliant and REACH unaffected.

Q: Is there any difference in electrical performance or reliability between these parts?

A: No. Both parts share identical electrical specifications: 21.5 kOhms ±0.5% resistance, 0.05W power rating, ±200ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range. Composition, construction method, and reliability characteristics are equivalent.

Q: What is the difference between the part numbers RK73H1HTTC2152D and RK73H1HTTCM2152D?

A: The part numbers differ only in the suffix designation. The "M" in RK73H1HTTCM2152D indicates a product line or manufacturing variant within KOA Speer Electronics' RK73H series. The technical specifications and performance are identical. The suffix change reflects internal product portfolio management by the manufacturer.