RK73H1HTTC2003D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2003D is a 200 kOhms ±0.5% chip resistor in 0201 package (0603 Metric) manufactured by KOA Speer Electronics, Inc. This thick film resistor is rated for automotive applications under AEC-Q200 standard with moisture-resistant construction. The part is classified as "Not For New Designs," indicating it has been superseded in the product line. Identifying equivalent substitute parts is necessary for ongoing support of existing designs, inventory management, and ensuring continued availability of functionally compatible components.

Substiute Parts

RK73H1HTTC2003D

KOA Speer Electronics, Inc.In Stock: 855RK73H1HTTC2003D Datasheet

Current PartRFQ

RK73H1HTTCM2003D

KOA Speer Electronics, Inc.In Stock: 1033RK73H1HTTCM2003D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC2003D is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 200 kOhms
• Tolerance: ±0.5%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive rating: AEC-Q200
• Moisture sensitivity level: MSL 1
• RoHS compliance: ROHS3

All substitute parts must maintain identical electrical specifications and environmental ratings. Physical dimensions, termination count, and regulatory compliance must remain unchanged. Substitutes are grouped based on product status and availability within the same manufacturer series (RK73H).

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM2003D is the direct substitute for RK73H1HTTC2003D. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73H series and maintain identical electrical and mechanical specifications. The primary distinction is product status: the original part is classified as "Not For New Designs," while the substitute is Active.

Selection of RK73H1HTTCM2003D is appropriate for:

• Replacement in existing designs currently using RK73H1HTTC2003D
• New production runs requiring equivalent 200 kOhms ±0.5% 0.05W 0201 automotive-grade resistors
• Applications requiring AEC-Q200 compliance and ROHS3 certification

Both parts satisfy identical compliance requirements including AEC-Q200 automotive rating, ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity classification. Physical footprint and thermal characteristics are equivalent, ensuring direct PCB compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2003D be used as a direct replacement for RK73H1HTTC2003D?

A: Yes. Both parts are electrically and mechanically identical with matching resistance (200 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), and all environmental ratings. The substitute is the active product version within the same manufacturer series.

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

A: This designation indicates the RK73H1HTTC2003D has been superseded in KOA's product line. The RK73H1HTTCM2003D represents the current active equivalent. For new designs, the active substitute should be specified.

Q: Are there any differences in automotive compliance between these parts?

A: No. Both parts carry identical AEC-Q200 automotive qualification and meet the same environmental and reliability standards required for automotive applications.

Q: Will the substitute part fit the same PCB footprint?

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 of 0.010" (0.26mm).

Q: Are there any moisture sensitivity concerns with the substitute?

A: No. Both parts are rated MSL 1 (Unlimited), indicating unlimited shelf life without moisture exposure precautions.

Q: What regulatory certifications apply to the substitute part?

A: The RK73H1HTTCM2003D is ROHS3 compliant, REACH unaffected, and carries AEC-Q200 automotive qualification, matching all certifications of the original part.