26S120C Equivalent & Substitute Parts

Part Overview

The 26S120C is a 12 µH shielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 2.55 A continuous current with a maximum DC resistance of 58mOhm. This component is designed for surface mount applications in the nonstandard package format and operates across the industrial temperature range of -40°C to 85°C. The part maintains Active product status and is fully RoHS3 compliant. Substitute parts are identified when equivalent inductance values, current ratings, and shielding characteristics align within acceptable electrical and mechanical tolerances for the intended application.

Substiute Parts

26S120C

Murata Power Solutions Inc.In Stock: 110626S120C Datasheet

Current PartRFQ

SRR1240-120M

Bourns Inc.In Stock: 1644SRR1240-120M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SRR1240-120M qualifies as a substitute for the 26S120C based on the following alignment of critical electrical parameters:

Both parts share identical inductance specifications at 12 µH, ensuring functional equivalence in circuit design. The SRR1240-120M provides a higher current rating of 3.8 A compared to the 26S120C's 2.55 A, which represents an improvement in current handling capability. The DC resistance of the SRR1240-120M is 38mOhm Max, which is lower than the 26S120C's 58mOhm Max, resulting in reduced power dissipation. Both components feature shielded construction for electromagnetic interference mitigation and are rated for surface mount assembly. The SRR1240-120M operates across an extended temperature range of -40°C to 125°C, encompassing the 26S120C's operating window. Both parts maintain RoHS3 compliance and REACH Unaffected status, satisfying regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 26S120C and SRR1240-120M maintain Active product status and satisfy RoHS3 and REACH compliance requirements. The SRR1240-120M offers superior electrical performance through higher current rating capacity and lower DC resistance, making it suitable for applications requiring enhanced thermal efficiency. The extended operating temperature range of the SRR1240-120M provides additional margin for high-temperature environments. Physical package dimensions differ between the two parts; the 26S120C measures 0.496" L x 0.181" W x 0.232" H, while the SRR1240-120M measures 0.492" L x 0.492" W x 0.177" H. PCB layout and mechanical clearance must be evaluated prior to substitution.

Frequently Asked Questions (FAQ)

Q: Can the SRR1240-120M directly replace the 26S120C in all applications?

A: Both parts share the same 12 µH inductance value and shielded surface mount construction. However, physical dimensions differ significantly. The SRR1240-120M has a larger footprint (0.492" x 0.492" vs. 0.496" x 0.181"), requiring verification of available PCB space before substitution.

Q: What are the advantages of using the SRR1240-120M as a substitute?

A: The SRR1240-120M provides 3.8 A current rating versus 2.55 A, lower DC resistance (38mOhm vs. 58mOhm), and an extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). These characteristics reduce power dissipation and expand thermal operating margins.

Q: Are both parts compliant with industry standards?

A: Both the 26S120C and SRR1240-120M are RoHS3 compliant, REACH Unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.4000. Both maintain Moisture Sensitivity Level 1 (Unlimited).

Q: How do the self-resonant frequencies compare?

A: The 26S120C has a self-resonant frequency of 21 MHz, while the SRR1240-120M operates at 25 MHz. This difference may affect high-frequency circuit behavior and should be considered in applications sensitive to resonant characteristics.

Q: What is the tolerance specification for the SRR1240-120M?

A: The SRR1240-120M carries an inductance tolerance of ±20%, which should be evaluated against circuit design requirements for inductance accuracy.