RK73H3ATTE2003F Equivalent & Substitute Parts

Part Overview

The RK73H3ATTE2003F is a 200 kOhms ±1% 1W chip resistor manufactured by KOA Speer Electronics, Inc. in the 2512 (6432 Metric) package. This thick film resistor is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently active in production with 4760 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive certifications align with the original component requirements.

Substiute Parts

RK73H3ATTE2003F

KOA Speer Electronics, Inc.In Stock: 4861RK73H3ATTE2003F Datasheet

Current PartRFQ

CRCW2512200KFKEG

Vishay DaleIn Stock: 3442CRCW2512200KFKEG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H3ATTE2003F is determined by strict equivalence across the following parameters:

• Resistance value: 200 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

The CRCW2512200KFKEG from Vishay Dale meets all these criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the RK73H3ATTE2003F and CRCW2512200KFKEG are active production components with identical electrical specifications and automotive qualifications. Selection between these parts is based on availability and supply chain requirements. Both parts carry ROHS3 compliance and AEC-Q200 automotive certification, confirming suitability for automotive applications requiring moisture resistance and thermal stability across the -55°C to 155°C operating range. The dimensional variance of 0.002" (0.05mm) in width is within standard manufacturing tolerances for the 2512 package and does not affect functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can CRCW2512200KFKEG replace RK73H3ATTE2003F in automotive applications?

A: Yes. Both parts are AEC-Q200 qualified with identical electrical specifications (200 kOhms ±1%, 1W, ±100ppm/°C) and operate across the same temperature range (-55°C ~ 155°C). Both are ROHS3 compliant with MSL 1 rating.

Q: Are there dimensional differences between these parts?

A: The width dimension differs by 0.002" (0.05mm): RK73H3ATTE2003F is 0.122" (3.10mm) wide, while CRCW2512200KFKEG is 0.124" (3.15mm) wide. Both fit the 2512 (6432 Metric) package specification and have identical height (0.028" / 0.70mm). This variance is within standard manufacturing tolerances.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts have MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations for storage or handling.

Q: Are both parts suitable for high-temperature automotive environments?

A: Yes. Both parts are rated for -55°C to 155°C operation with ±100ppm/°C temperature coefficient, meeting automotive thermal requirements.

Q: What is the difference in composition between these parts?

A: Both parts use thick film construction. The RK73H3ATTE2003F includes moisture-resistant construction as a specified feature; the CRCW2512200KFKEG does not list this feature explicitly but meets equivalent performance standards through AEC-Q200 qualification.