RK73H2ATTDD2000F Equivalent & Substitute Parts

Part Overview

The RK73H2ATTDD2000F is a 200 Ohms ±1% 0.25W chip resistor manufactured by KOA Speer Electronics, Inc. in the 0805 (2012 Metric) package format. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with substantial inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from multiple qualified manufacturers.

Substiute Parts

RK73H2ATTDD2000F

KOA Speer Electronics, Inc.In Stock: 11010RK73H2ATTDD2000F Datasheet

Current PartRFQ

CRCW0805200RFKEA

Vishay DaleIn Stock: 121499CRCW0805200RFKEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H2ATTDD2000F is determined by the following critical parameters:

• Resistance value: 200 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match or wider range acceptable)
• Automotive Rating: AEC-Q200 (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The CRCW0805200RFKEA from Vishay Dale meets all critical substitution criteria. The primary difference is the power rating: the substitute part is rated at 0.125W (1/8W) compared to the main part's 0.25W (1/4W). This represents a lower power dissipation capability and must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the RK73H2ATTDD2000F and CRCW0805200RFKEA are active production components with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts depends on circuit power dissipation requirements at the 200 Ohm resistance value. The main part provides 0.25W rated power dissipation, while the substitute provides 0.125W. In applications where the calculated power dissipation does not exceed 0.125W, either part is suitable. For applications requiring the full 0.25W capability, the RK73H2ATTDD2000F is the appropriate selection. Both components share identical electrical characteristics including resistance tolerance, temperature coefficient, and operating temperature range, ensuring functional equivalence within their respective power ratings.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805200RFKEA be used as a direct replacement for RK73H2ATTDD2000F?

A: The CRCW0805200RFKEA is electrically and mechanically compatible with the RK73H2ATTDD2000F in the 0805 package format with identical resistance, tolerance, and temperature characteristics. The critical difference is power rating: 0.125W versus 0.25W. Direct substitution is valid only if circuit power dissipation at 200 Ohms does not exceed 0.125W.

Q: What is the significance of the power rating difference?

A: Power rating indicates the maximum continuous power dissipation the resistor can handle without exceeding temperature limits. A 0.125W rated resistor operating at 0.25W would generate excessive heat and risk component failure. Conversely, using a 0.25W rated part in a 0.125W application presents no technical issue.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the RK73H2ATTDD2000F and CRCW0805200RFKEA carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability and quality standards.

Q: Do these parts have identical package dimensions?

A: Both parts use the 0805 (2012 Metric) package format with identical length and width dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). Height specifications differ slightly: RK73H2ATTDD2000F maximum 0.024" (0.60mm) versus CRCW0805200RFKEA maximum 0.020" (0.50mm). Both heights are within standard 0805 package tolerances and present no PCB assembly compatibility issues.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0030. Moisture sensitivity level is 1 (unlimited) for both components.