RK73G1HTTC1802F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC1802F is an 18 kOhms ±1% thick film chip resistor rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards. The part is currently classified as Not For New Designs, indicating that alternative solutions should be evaluated for new applications. Identifying equivalent and substitute parts ensures design continuity and supply chain flexibility while maintaining electrical and mechanical compatibility.

Substiute Parts

RK73G1HTTC1802F

KOA Speer Electronics, Inc.In Stock: 815RK73G1HTTC1802F Datasheet

Current PartRFQ

RK73G1HTTCM1802F

KOA Speer Electronics, Inc.In Stock: 1070RK73G1HTTCM1802F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC1802F is determined by strict equivalence across the following critical parameters:

• Resistance Value: 18 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Automotive Compliance: AEC-Q200 (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Substitute parts must satisfy all parameters listed above. Variations in any of these specifications disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM1802F is a direct functional equivalent to the RK73G1HTTC1802F. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73G series and share identical electrical specifications, mechanical dimensions, and automotive compliance certifications.

The primary distinction between these parts is product status. The RK73G1HTTC1802F is designated as Not For New Designs, while the RK73G1HTTCM1802F maintains Active status. For new design implementations, the RK73G1HTTCM1802F is the appropriate selection. Both parts satisfy ROHS3 compliance and AEC-Q200 automotive qualification requirements.

The electrical and mechanical parameters are identical across both parts, ensuring pin-for-pin and functional compatibility in existing circuit designs. Selection between these parts should be based on design phase and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM1802F be used as a direct replacement for the RK73G1HTTC1802F in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (18 kOhms), tolerance (±1%), power rating (0.05W), package (0201), temperature coefficient (±50ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive AEC-Q200 certification. Direct substitution is supported.

Q: What is the significance of the product status difference between these parts?

A: The RK73G1HTTC1802F is marked as Not For New Designs, indicating that KOA Speer Electronics, Inc. recommends using alternative parts for new applications. The RK73G1HTTCM1802F carries Active status and is the recommended choice for new design implementations. Both parts remain functionally equivalent.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, AEC-Q200 qualified, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Compliance certifications are equivalent across both parts.

Q: What are the physical dimensions of the 0201 package?

A: The 0201 (0603 Metric) package measures 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm). Both parts conform to these specifications.

Q: Can these parts be used in automotive applications?

A: Yes. Both the RK73G1HTTC1802F and RK73G1HTTCM1802F meet AEC-Q200 automotive qualification standards and are suitable for automotive circuit applications within the specified operating temperature range of -55°C to 155°C.