RD7127-36-1M0 Equivalent & Substitute Parts

Part Overview

The RD7127-36-1M0 is a 1 mH, 2-line common mode choke (CMC) designed for power line filtering applications. Manufactured by Schaffner EMC Inc., this through-hole component operates at 36A typical current rating with 3.3mOhm DC resistance. The part is currently active in production and widely available in inventory. Substitute parts may be required due to component availability, lead time constraints, or specific application requirements that align with alternative electrical and mechanical specifications.

Substiute Parts

RD7127-36-1M0

Schaffner EMC Inc.In Stock: 772RD7127-36-1M0 Datasheet

Current PartRFQ

7448262510

Würth ElektronikIn Stock: 12047448262510 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RD7127-36-1M0 is determined by the following critical parameters:

• Inductance value: 1 mH (primary functional requirement)
• Number of lines: 2-line configuration
• Mounting type: Through hole
• Filter type: Power line
• Compliance: ROHS3 and REACH Unaffected status

The substitute part 7448262510 (Würth Elektronik WE-CMB series) shares the core inductance specification (1 mH) and 2-line configuration with through-hole mounting. However, differences exist in current rating, DC resistance, voltage ratings, and physical dimensions. These differences establish the substitution boundaries and determine application suitability.

Parameter Comparison

Engineering Selection Recommendations

Both the RD7127-36-1M0 and 7448262510 maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for equivalent component selection. The primary distinction lies in electrical performance ratings and physical form factor.

The RD7127-36-1M0 is suitable for applications requiring 36A current capacity and 850V DC / 600V AC voltage ratings. The 7448262510 operates at reduced current (25A) and voltage (250V AC) specifications, with a more compact footprint. Selection between these components depends on circuit current and voltage requirements. The RD7127-36-1M0 maintains higher performance headroom for demanding power line filtering applications, while the 7448262510 accommodates space-constrained designs with lower electrical stress requirements.

Frequently Asked Questions (FAQ)

Q: Can the 7448262510 directly replace the RD7127-36-1M0 in all applications?

A: No. The 7448262510 has a lower current rating (25A vs. 36A) and reduced voltage ratings (250V AC vs. 600V AC). Substitution is valid only when circuit current and voltage requirements fall within the 7448262510 specifications.

Q: What are the key differences in physical mounting?

A: The RD7127-36-1M0 uses horizontal orientation (70mm x 70mm footprint), while the 7448262510 uses vertical orientation (44mm x 24.60mm footprint). PCB layout and clearance requirements differ between these configurations.

Q: Are both parts compliant with environmental and regulatory standards?

A: Yes. Both components are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the significance of the inductance measurement frequency difference?

A: The RD7127-36-1M0 specifies inductance at 1 kHz, while the 7448262510 specifies at 100 kHz. Both maintain 1 mH nominal inductance, but frequency-dependent behavior may vary slightly across the operating bandwidth.

Q: How do DC resistance values affect component selection?

A: The RD7127-36-1M0 has 3.3mOhm DCR versus 7448262510 at 4.5mOhm. Higher DCR increases power dissipation and heat generation. Selection depends on thermal management requirements and acceptable power loss in the application circuit.