RK73H1HTTC3830F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3830F is a 383 Ohm ±1% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). Manufactured by KOA Speer Electronics, Inc., this component meets automotive AEC-Q200 qualification standards and incorporates moisture-resistant construction suitable for harsh operating environments.

The main part carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line.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 to ensure design continuity, maintain supply chain flexibility, and transition to actively supported alternatives where applicable.

Substiute Parts

RK73H1HTTC3830F

KOA Speer Electronics, Inc.In Stock: 10680RK73H1HTTC3830F Datasheet

Current PartRFQ

RK73H1HTTCM3830F

KOA Speer Electronics, Inc.In Stock: 1185RK73H1HTTCM3830F Datasheet

MFR RecommendedRFQ

AC0201FR-07383RL

YAGEOIn Stock: 878AC0201FR-07383RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3830F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 383 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package format: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: MSL 1

All identified substitute parts meet these parameters without exception. Substitutes are grouped into two categories: manufacturer-recommended alternatives from KOA Speer Electronics and direct cross-reference parts from alternative manufacturers that satisfy identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM3830F (KOA Speer Electronics): This part represents the manufacturer-recommended upgrade path from the RK73H1HTTC3830F. Both components are from the same manufacturer's RK73H series and share identical electrical specifications. The RK73H1HTTCM3830F carries "Active" product status, indicating ongoing manufacturing support and availability. Selection of this part ensures continuity with the original design intent while transitioning to a supported product line. This option is preferred for applications requiring single-source component qualification or where KOA Speer Electronics is the established supplier.

AC0201FR-07383RL (YAGEO): This part provides a cross-manufacturer alternative with full parameter equivalence to the original RK73H1HTTC3830F. The AC0201FR-07383RL maintains all critical specifications including AEC-Q200 automotive qualification, moisture resistance, and identical electrical performance. YAGEO's AC series thick film resistor is actively produced and widely available. This option is suitable for applications where multi-source qualification is permitted or where YAGEO components are already integrated into the supply chain. The part carries "Active" status with confirmed inventory availability.

Both substitute parts satisfy all mandatory electrical, mechanical, and compliance requirements. Selection between them depends on existing supplier relationships, qualification documentation, and supply chain strategy rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3830F directly replace RK73H1HTTC3830F in existing designs?

A: Yes. Both parts are electrically and mechanically identical with matching resistance, tolerance, power rating, package format, temperature coefficient, and operating temperature range. Both meet AEC-Q200 automotive qualification. The primary difference is product status: RK73H1HTTCM3830F is actively manufactured while RK73H1HTTC3830F is not recommended for new designs. Existing designs using RK73H1HTTC3830F can transition to RK73H1HTTCM3830F without circuit modification.

Q: Is AC0201FR-07383RL compatible with designs specified for RK73H1HTTC3830F?

A: Yes. AC0201FR-07383RL meets all electrical and mechanical specifications of RK73H1HTTC3830F: 383 Ohms ±1%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 qualification, moisture resistance, and ROHS3 compliance. Cross-manufacturer substitution is valid when both parts satisfy identical parameter requirements.

Q: What is the significance of "Not For New Designs" status on RK73H1HTTC3830F?

A: This designation indicates the manufacturer has discontinued active development and support for this specific part number. While existing inventory may remain available, the manufacturer recommends using alternative part numbers for new circuit designs. RK73H1HTTCM3830F serves as the active replacement within the same manufacturer's product line.

Q: Are there packaging differences between these substitute parts?

A: RK73H1HTTC3830F and AC0201FR-07383RL are both supplied in Tape & Reel (TR) format. RK73H1HTTCM3830F packaging type is not specified in available documentation. All three parts use identical 0201 (0603 Metric) package format with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and height (0.010" / 0.26mm maximum seated height), ensuring compatibility with existing PCB layouts and assembly processes.

Q: Do all substitute parts maintain moisture resistance?

A: RK73H1HTTC3830F and AC0201FR-07383RL both specify moisture-resistant construction. RK73H1HTTCM3830F does not explicitly list moisture resistance in available specifications. All three parts carry MSL 1 (Unlimited) moisture sensitivity level rating. For applications requiring confirmed moisture resistance, RK73H1HTTC3830F and AC0201FR-07383RL provide explicit documentation.

Q: What compliance certifications apply to all substitute parts?

A: All three parts are ROHS3 compliant, AEC-Q200 qualified for automotive applications, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0030. These certifications are consistent across all substitute options.