Equivalent & Substitute Parts for RK73H1HTTC82R5F

Part Overview

The RK73H1HTTC82R5F is an 82.5 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0603 metric). This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC82R5F is classified as "Not For New Designs," indicating it has been superseded. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support existing production requirements while considering active alternatives from the same or equivalent manufacturers.

Substiute Parts

RK73H1HTTC82R5F

KOA Speer Electronics, Inc.In Stock: 34756RK73H1HTTC82R5F Datasheet

Current PartRFQ

RK73H1HTTCM82R5F

KOA Speer Electronics, Inc.In Stock: 804RK73H1HTTCM82R5F Datasheet

MFR RecommendedRFQ

AC0201FR-0782R5L

YAGEOIn Stock: 730AC0201FR-0782R5L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC82R5F is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 82.5 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 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

All substitute parts listed meet these exact specifications. Substitutes are grouped by manufacturer and product status to facilitate selection based on availability and design phase requirements.

Parameter Comparison

Engineering Selection Recommendations

For Active Design Programs: The RK73H1HTTCM82R5F (KOA Speer Electronics) is the manufacturer-recommended upgrade path. This part maintains KOA series continuity within the RK73H family and carries Active product status. However, this variant does not specify moisture-resistant construction in its detailed description, which differs from the original RK73H1HTTC82R5F specification.

The AC0201FR-0782R5L (YAGEO) is a direct cross-reference alternative with Active product status. This part explicitly maintains moisture-resistant thick film construction and all automotive AEC-Q200 qualifications. It is suitable for new designs requiring equivalent electrical and environmental performance.

For Existing Production Support: The RK73H1HTTC82R5F remains available with 34,666 pieces in stock. For applications where the original part number must be maintained, continued sourcing is currently feasible. The RK73H1HTTCM82R5F provides a KOA-internal alternative with 734 pieces available. The AC0201FR-0782R5L offers the highest inventory position at 698 pieces with Active status and full moisture-resistant specification alignment.

All three parts satisfy the electrical, thermal, and compliance requirements for automotive applications requiring 82.5 Ohm ±1% 0.05W thick film resistors in 0201 packages.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM82R5F replace RK73H1HTTC82R5F in all applications?

A: Both parts share identical electrical specifications (82.5 Ohms ±1%, 0.05W, ±200ppm/°C, -55°C to 155°C) and AEC-Q200 automotive qualification. However, the RK73H1HTTCM82R5F does not explicitly specify moisture-resistant construction, while the original RK73H1HTTC82R5F does. Applications requiring moisture resistance should confirm this specification with the manufacturer before substitution.

Q: Is AC0201FR-0782R5L a direct equivalent to RK73H1HTTC82R5F?

A: Yes. The AC0201FR-0782R5L matches all critical parameters: 82.5 Ohms ±1%, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 qualification, moisture-resistant construction, and ROHS3 compliance. Both parts are functionally interchangeable.

Q: What is the difference between 0201 and 0603 metric designations?

A: These designations refer to the same physical package size. 0201 is the imperial designation (0.024" L x 0.012" W), while 0603 metric is the equivalent metric designation (0.60mm x 0.30mm). All three parts use this identical package.

Q: Why is RK73H1HTTC82R5F marked "Not For New Designs"?

A: This status indicates the part has been superseded by newer alternatives. KOA Speer Electronics recommends the RK73H1HTTCM82R5F for new design programs. However, the part remains available for existing production support and legacy applications.

Q: Are all three parts RoHS3 compliant?

A: Yes. RK73H1HTTC82R5F, RK73H1HTTCM82R5F, and AC0201FR-0782R5L are all ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which part should be selected for new automotive designs?

A: For new designs, either RK73H1HTTCM82R5F (KOA, Active status) or AC0201FR-0782R5L (YAGEO, Active status) are appropriate. The AC0201FR-0782R5L is preferred if moisture-resistant specification is critical, as it explicitly maintains this feature. Both carry AEC-Q200 qualification and full automotive compliance.