RK73H1HTTC3240D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3240D is a 324 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The RK73H1HTTC3240D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identification of equivalent substitute parts is necessary for ongoing support of existing designs, legacy system maintenance, and procurement continuity where this component remains specified.

Substiute Parts

RK73H1HTTC3240D

KOA Speer Electronics, Inc.In Stock: 895RK73H1HTTC3240D Datasheet

Current PartRFQ

RK73H1HTTCM3240D

KOA Speer Electronics, Inc.In Stock: 1008RK73H1HTTCM3240D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3240D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 324 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)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) (exact match required)
• Height - Seated (Max): 0.010" (0.26mm) (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Quality Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• Composition: Thick Film (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Substitute parts must satisfy all parameters listed above to ensure functional and mechanical compatibility within the original application circuit.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM3240D is the manufacturer-recommended substitute for the RK73H1HTTC3240D. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73H series and satisfy identical electrical, mechanical, and compliance specifications.

The primary distinction between these parts is product status: the RK73H1HTTC3240D is designated "Not For New Designs," while the RK73H1HTTCM3240D maintains "Active" status. This indicates that the RK73H1HTTCM3240D represents the current production equivalent and is the appropriate selection for ongoing procurement and design support.

Both parts maintain full AEC-Q200 automotive qualification, ROHS3 compliance, and identical performance characteristics across resistance, tolerance, power rating, temperature coefficient, and operating temperature range. The physical package, dimensions, and termination configuration are identical, ensuring direct mechanical and electrical interchangeability.

For applications currently specified with the RK73H1HTTC3240D, transition to the RK73H1HTTCM3240D is supported by equivalent performance and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM3240D be used as a direct replacement for the RK73H1HTTC3240D?

A: Yes. Both components are electrically and mechanically equivalent. They share identical resistance (324 Ohms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The RK73H1HTTCM3240D is the manufacturer-recommended active equivalent.

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

A: The RK73H1HTTC3240D is designated "Not For New Designs," indicating it has been superseded. The RK73H1HTTCM3240D carries "Active" product status and represents the current production equivalent. All electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical?

A: Yes. Both components are packaged in 0201 (0603 Metric) with dimensions of 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 PCB layouts.

Q: Do both parts meet automotive standards?

A: Yes. Both the RK73H1HTTC3240D and RK73H1HTTCM3240D are AEC-Q200 qualified and suitable for automotive applications. Both maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited).

Q: What is the tolerance specification for these resistors?

A: Both parts are specified at ±0.5% tolerance, ensuring precise resistance values within 321.62 Ohms to 326.38 Ohms.

Q: Are these components moisture-resistant?

A: Yes. The RK73H1HTTC3240D includes moisture-resistant construction. The RK73H1HTTCM3240D maintains equivalent moisture protection characteristics with Moisture Sensitivity Level 1 (Unlimited).