RK73G1HTTC1503F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC1503F is a 150 kOhms ±1% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and transition to active product alternatives where applicable.

Substiute Parts

RK73G1HTTC1503F

KOA Speer Electronics, Inc.In Stock: 1093RK73G1HTTC1503F Datasheet

Current PartRFQ

RK73G1HTTCM1503F

KOA Speer Electronics, Inc.In Stock: 847RK73G1HTTCM1503F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC1503F is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 150 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (equal or greater capacity acceptable)
• Package format: 0201 (0603 Metric) (exact match required for PCB compatibility)
• Automotive qualification: AEC-Q200 (required for automotive applications)

Secondary Matching Parameters:

• Composition: Thick Film (preferred for consistency)
• Temperature coefficient: ±50ppm/°C (equal or better stability acceptable)
• Operating temperature range: -55°C ~ 155°C (must support full range)
• RoHS compliance: ROHS3 (regulatory requirement)
• Moisture sensitivity: MSL 1 (preferred for handling flexibility)

Substitute parts must satisfy all critical parameters. Variations in secondary parameters are acceptable only when they represent equal or improved performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

RK73G1HTTCM1503F is the direct equivalent and recommended substitute for RK73G1HTTC1503F.

Basis for Recommendation:

The RK73G1HTTCM1503F maintains complete electrical and mechanical equivalence across all critical parameters. Both parts are manufactured by KOA Speer Electronics, Inc., belong to the same RK73G series, and share identical specifications for resistance value, tolerance, power rating, package format, and automotive qualification.

The primary distinction is product status: RK73G1HTTC1503F is designated "Not For New Designs," while RK73G1HTTCM1503F is classified as "Active." This status change indicates that RK73G1HTTCM1503F represents the current production alternative within the manufacturer's product line.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and MSL 1 moisture sensitivity classification. The identical temperature coefficient (±50ppm/°C) and operating temperature range (-55°C ~ 155°C) ensure equivalent performance across automotive thermal environments.

For new designs, RK73G1HTTCM1503F should be selected. For existing designs currently using RK73G1HTTC1503F, substitution with RK73G1HTTCM1503F requires no circuit modifications or PCB layout changes.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM1503F be used as a direct replacement for RK73G1HTTC1503F in existing designs?

A: Yes. RK73G1HTTCM1503F is a direct equivalent. All electrical parameters, mechanical dimensions, and package specifications are identical. No circuit modifications or PCB layout changes are required.

Q: What is the significance of the "Not For New Designs" status on RK73G1HTTC1503F?

A: This designation indicates the part has been superseded by an active alternative. RK73G1HTTCM1503F is the active production equivalent. For new designs, RK73G1HTTCM1503F should be specified.

Q: Are both parts suitable for automotive applications?

A: Yes. Both RK73G1HTTC1503F and RK73G1HTTCM1503F carry AEC-Q200 automotive qualification and are rated for the -55°C ~ 155°C operating temperature range required in automotive environments.

Q: Do the parts have identical physical dimensions?

A: Yes. Both parts are packaged in 0201 format (0.60mm x 0.30mm metric) with maximum seated height of 0.010" (0.26mm). They are footprint-compatible on PCBs designed for either part.

Q: What is the difference between the part numbers RK73G1HTTC1503F and RK73G1HTTCM1503F?

A: The part numbers differ only in the suffix: "C" versus "CM." This suffix variation reflects the manufacturer's product line evolution. The "M" designation in RK73G1HTTCM1503F indicates the active production version. All functional and electrical specifications remain identical.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the moisture sensitivity level for these parts?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.