Equivalent & Substitute Parts Reference: RK73H1HTTC30R0F

Part Overview

The RK73H1HTTC30R0F is a 30 Ohm, ±1% tolerance, 0.05W (1/20W) thick film chip resistor in 0201 package (0.60mm x 0.30mm) manufactured by KOA Speer Electronics, Inc. This component is rated for automotive applications under AEC-Q200 standard with moisture-resistant construction and operates across -55°C to 155°C temperature range.

The main part carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line. Identifying equivalent and substitute parts is necessary for ongoing production support, legacy system maintenance, and design continuity where this component specification remains functionally required.

Substiute Parts

RK73H1HTTC30R0F

KOA Speer Electronics, Inc.In Stock: 17912RK73H1HTTC30R0F Datasheet

Current PartRFQ

RK73H1HTTCM30R0F

KOA Speer Electronics, Inc.In Stock: 988RK73H1HTTCM30R0F Datasheet

MFR RecommendedRFQ

AC0201FR-0730RL

YAGEOIn Stock: 1182AC0201FR-0730RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC30R0F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 30 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package type: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive rating: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1

Substitute parts are grouped into two categories based on manufacturer and product status:

Category 1 - Manufacturer Recommended Equivalent: Parts from the same manufacturer (KOA Speer Electronics, Inc.) that represent the active product line successor with identical electrical and mechanical specifications.

Category 2 - Direct Cross-Reference Substitute: Parts from alternative manufacturers (YAGEO) that meet all electrical, mechanical, and compliance requirements and are confirmed as direct substitutes in the original part's documented substitute list.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

Use RK73H1HTTCM30R0F (KOA Speer Electronics, Inc.) as the primary substitute. This part maintains identical electrical specifications, mechanical compatibility, and automotive AEC-Q200 certification while carrying Active product status. The transition from RK73H1HTTC30R0F to RK73H1HTTCM30R0F represents the manufacturer's current production line for this specification.

For Cross-Manufacturer Sourcing:

Use AC0201FR-0730RL (YAGEO) when supply chain diversification or alternative sourcing is required. This part meets all electrical, mechanical, and compliance requirements including AEC-Q200 automotive rating, moisture resistance, and ROHS3 compliance. The AC0201FR-0730RL is documented as a direct substitute in the original part's substitute list and carries Active product status.

Selection Basis:

Both substitute parts satisfy the mandatory parameter requirements: 30 Ohm resistance, ±1% tolerance, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 automotive rating, ROHS3 compliance, and MSL 1 moisture sensitivity level. The choice between them depends on supply availability, procurement agreements, and manufacturing location preferences rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM30R0F be used as a direct replacement for RK73H1HTTC30R0F in existing designs?

A: Yes. RK73H1HTTCM30R0F is the manufacturer-recommended equivalent with identical electrical specifications (30 Ohms ±1%, 0.05W), mechanical package (0201), temperature coefficient (±200ppm/°C), operating range (-55°C to 155°C), and automotive AEC-Q200 certification. The primary difference is product status: RK73H1HTTCM30R0F is Active while the original is Not For New Designs.

Q: What is the difference between RK73H1HTTCM30R0F and AC0201FR-0730RL?

A: Both parts are electrically and mechanically equivalent with identical resistance (30 Ohms), tolerance (±1%), power rating (0.05W), package (0201), and automotive certification (AEC-Q200). The difference is manufacturer: RK73H1HTTCM30R0F is from KOA Speer Electronics, Inc., while AC0201FR-0730RL is from YAGEO. Both carry Active product status and ROHS3 compliance.

Q: Are moisture-resistant properties maintained across all substitute parts?

A: The main part RK73H1HTTC30R0F and the YAGEO substitute AC0201FR-0730RL both explicitly specify moisture-resistant construction. The KOA equivalent RK73H1HTTCM30R0F does not list moisture resistance in its specification, though it maintains MSL 1 (Unlimited) rating. For applications requiring explicit moisture resistance, AC0201FR-0730RL is the confirmed alternative.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. All three parts share identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), maximum seated height (0.010" / 0.26mm), and 0201 package specification. They are mechanically interchangeable in PCB layouts and assembly processes.

Q: What compliance certifications apply to substitute parts?

A: Both substitute parts maintain ROHS3 compliance, AEC-Q200 automotive rating, MSL 1 moisture sensitivity level, and REACH Unaffected status. These certifications match the original part's compliance profile.

Q: Is there a packaging difference between the main part and substitutes?

A: The main part RK73H1HTTC30R0F is supplied in Tape & Reel (TR) packaging. The KOA equivalent RK73H1HTTCM30R0F does not specify packaging format in the provided data. The YAGEO substitute AC0201FR-0730RL is also supplied in Tape & Reel (TR) packaging, matching the original part's delivery format.