Equivalent & Substitute Parts for RK73H1HTTC1822D

Part Overview

The RK73H1HTTC1822D is an 18.2 kOhms ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package. This component is rated for automotive applications under AEC-Q200 and features moisture-resistant construction with a power rating of 0.05W (1/20W). The part is currently classified as "Not For New Designs," which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73H1HTTC1822D

KOA Speer Electronics, Inc.In Stock: 7733RK73H1HTTC1822D Datasheet

Current PartRFQ

RK73H1HTTCM1822D

KOA Speer Electronics, Inc.In Stock: 1015RK73H1HTTCM1822D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC1822D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 18.2 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 Parameters:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive rating: AEC-Q200 (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. Differences in product status (Active vs. Not For New Designs) do not affect electrical or mechanical compatibility but indicate design lifecycle stage.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM1822D is a direct electrical and mechanical equivalent to the RK73H1HTTC1822D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and satisfy identical specifications across all critical parameters: 18.2 kOhms ±0.5% resistance, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating.

The primary distinction is product lifecycle status: RK73H1HTTC1822D is designated "Not For New Designs," while RK73H1HTTCM1822D carries "Active" status. For applications requiring ongoing component procurement, design updates, or new production runs, the RK73H1HTTCM1822D is the appropriate selection. Both parts are functionally interchangeable in existing designs without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1822D be used as a direct replacement for RK73H1HTTC1822D in existing assemblies?

A: Yes. Both components are electrically and mechanically identical across all specified parameters. No circuit modifications, PCB layout changes, or functional re-testing are required for substitution in existing designs.

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

A: This designation indicates the component has reached end-of-life in the manufacturer's product roadmap. It does not affect electrical performance or reliability in current applications. However, for new product development or long-term production continuity, the active equivalent RK73H1HTTCM1822D should be selected.

Q: Are the 0201 package dimensions identical between both parts?

A: Yes. Both components conform to 0201 (0603 Metric) package specifications: 0.024" L × 0.012" W (0.60mm × 0.30mm) with maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are identical.

Q: Do both parts meet automotive AEC-Q200 requirements?

A: Yes. Both RK73H1HTTC1822D and RK73H1HTTCM1822D are AEC-Q200 qualified and suitable for automotive applications within the specified operating temperature range of -55°C to 155°C.

Q: Is there any difference in moisture sensitivity or environmental performance?

A: No. Both components carry MSL 1 (Unlimited) moisture sensitivity rating and are ROHS3 compliant with REACH Unaffected status. Environmental performance and handling requirements are identical.

Q: What tolerance should be specified for circuit design calculations?

A: Both parts maintain ±0.5% tolerance on the 18.2 kOhms nominal value. Circuit designs must account for this tolerance range (18.09 kOhms to 18.31 kOhms) regardless of which part number is selected.