AHA50AFB-0R15 Equivalent & Substitute Parts

Part Overview

The AHA50AFB-0R15 is a 150 mOhms ±1% 50W wirewound chassis mount resistor manufactured by YAGEO in the AHA series. This component is designed for high-power applications requiring precision current sensing and load balancing in industrial and power distribution circuits. The part maintains Active product status with 739 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's functional requirements.

Substiute Parts

AHA50AFB-0R15

YAGEOIn Stock: 789AHA50AFB-0R15 Datasheet

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RH050R1500FE02

Vishay DaleIn Stock: 1143RH050R1500FE02 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RH050R1500FE02 (Vishay Dale, RH series) qualifies as a direct substitute for the AHA50AFB-0R15 based on the following critical parameters:

• Electrical Match: Identical resistance value (150 mOhms) and tolerance (±1%)
• Power Rating: Both rated at 50W
• Composition & Construction: Both are wirewound chassis mount resistors with aluminum housing
• Operating Temperature: Both support -55°C ~ 250°C range
• Mechanical Compatibility: Dimensions are equivalent (49.99mm × 28.96mm vs. 50.00mm × 29.00mm), with solder lug termination
• Compliance: Both ROHS3 compliant and REACH unaffected
• Lead Style: Identical solder lug configuration

The substitute part demonstrates improved temperature coefficient performance (±100ppm/°C vs. ±200ppm/°C) and includes moisture-resistant features, representing an upgrade option while maintaining full functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the AHA50AFB-0R15 and RH050R1500FE02 maintain Active product status and full ROHS3 compliance with REACH unaffected designation, qualifying them for equivalent circuit applications. The RH050R1500FE02 offers superior temperature stability with a ±100ppm/°C coefficient compared to the ±200ppm/°C specification of the AHA50AFB-0R15, making it suitable for applications requiring tighter resistance tolerance over temperature variations. Mechanical compatibility is confirmed through equivalent flange mounting and solder lug termination, with dimensional variance within acceptable tolerances for standard PCB and chassis layouts. Selection between these parts should be based on inventory availability, lead time requirements, and application-specific temperature stability demands.

Frequently Asked Questions (FAQ)

Q: Can the RH050R1500FE02 be used as a direct replacement for the AHA50AFB-0R15?

A: Yes. Both components share identical electrical specifications (150 mOhms ±1% at 50W), equivalent mechanical mounting (flanges with solder lugs), and matching operating temperature ranges (-55°C ~ 250°C). Dimensional differences are negligible for standard circuit board layouts.

Q: What is the primary difference between these two parts?

A: The RH050R1500FE02 features a superior temperature coefficient (±100ppm/°C) compared to the AHA50AFB-0R15 (±200ppm/°C), resulting in better resistance stability across temperature extremes. The Vishay Dale part also includes moisture-resistant features.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the AHA50AFB-0R15 and RH050R1500FE02 are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.

Q: Do the physical dimensions require PCB layout modifications?

A: No. The dimensional variance between parts (50.00mm vs. 49.99mm length; 29.00mm vs. 28.96mm width) is within standard manufacturing tolerances and does not require circuit board redesign. Flange mounting and solder lug spacing remain compatible.

Q: Which part should be selected for temperature-critical applications?

A: The RH050R1500FE02 is the appropriate choice for applications requiring tighter resistance tolerance over extended temperature ranges, due to its ±100ppm/°C temperature coefficient specification.