Equivalent & Substitute Parts for RK73H1HTTC3301F

Part Overview

The RK73H1HTTC3301F is a 3.3 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., designed for 0.05W (1/20W) applications in the 0201 (0603 Metric) package format. This component is rated for automotive applications under AEC-Q200 and features moisture-resistant construction with unlimited moisture sensitivity level (MSL 1).

The RK73H1HTTC3301F carries a product status of "Not For New Designs," indicating it has been superseded. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product lines while preserving electrical and mechanical compatibility.

Substiute Parts

RK73H1HTTC3301F

KOA Speer Electronics, Inc.In Stock: 50732RK73H1HTTC3301F Datasheet

Current PartRFQ

RK73H1HTTCM3301F

KOA Speer Electronics, Inc.In Stock: 1046RK73H1HTTCM3301F Datasheet

MFR RecommendedRFQ

AC0201FR-073K3L

YAGEOIn Stock: 17079AC0201FR-073K3L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC3301F are qualified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Resistance value: 3.3 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°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)
• Moisture sensitivity: MSL 1 (exact match required)

Identified Substitute Parts:

1. RK73H1HTTCM3301F (KOA Speer Electronics, Inc.) — MFR Recommended substitute with Active product status
2. AC0201FR-073K3L (YAGEO) — Direct manufacturer alternative with Active product status

Both substitutes meet all electrical and mechanical parameters specified for the original component.

Parameter Comparison

Engineering Selection Recommendations

For designs currently using RK73H1HTTC3301F:

The RK73H1HTTCM3301F from KOA Speer Electronics, Inc. is the primary recommended substitute. This part maintains the same manufacturer lineage, carries Active product status, and meets all electrical and mechanical specifications. It is the direct evolution within the RK73H series and ensures supply chain continuity with the original design intent.

The AC0201FR-073K3L from YAGEO is a qualified alternative for applications where cross-manufacturer sourcing is acceptable. This part is also Active and meets all specified parameters, including moisture resistance and AEC-Q200 automotive compliance. The primary difference is manufacturer origin and packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Both substitutes are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3301F be used as a direct replacement for RK73H1HTTC3301F?

A: Yes. The RK73H1HTTCM3301F meets all electrical and mechanical parameters of the original part, including resistance value, tolerance, power rating, package format, temperature coefficient, operating temperature range, and AEC-Q200 automotive compliance. The primary advantage is its Active product status.

Q: What is the difference between RK73H1HTTC3301F and RK73H1HTTCM3301F?

A: Both parts are manufactured by KOA Speer Electronics, Inc., with identical electrical specifications. The RK73H1HTTCM3301F carries Active product status, while the RK73H1HTTC3301F is marked "Not For New Designs." The moisture-resistant feature is explicitly specified for the original part but not documented for the substitute.

Q: Can YAGEO AC0201FR-073K3L replace KOA parts in automotive applications?

A: Yes. The AC0201FR-073K3L meets all specified parameters, including AEC-Q200 automotive rating, ±1% tolerance, 0.05W power rating, and 0201 package format. It is suitable for automotive applications requiring these specifications.

Q: Are there packaging differences between the substitutes?

A: Yes. The RK73H1HTTC3301F and RK73H1HTTCM3301F are supplied in Tape & Reel (TR) format. The AC0201FR-073K3L is supplied in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on manufacturing equipment and assembly process requirements.

Q: Do all three parts have the same moisture sensitivity rating?

A: Yes. All three parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture bake-out requirement prior to soldering and unlimited shelf life under standard storage conditions.

Q: Which substitute should be selected for new designs?

A: For new designs, either RK73H1HTTCM3301F or AC0201FR-073K3L is appropriate, as both carry Active product status. Selection should be based on manufacturer preference, packaging requirements, and supply chain considerations.