Murata Power Solutions 34104C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 34104C is a 100 µH shielded wirewound inductor rated for 280 mA continuous current with a maximum DC resistance of 1.7Ohm. This component operates across the industrial temperature range of -40°C to 125°C and is packaged in a nonstandard surface mount form factor measuring 5.20mm x 5.20mm x 2.00mm. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating.

Equivalent parts are identified when alternative inductors maintain the same inductance value, compatible current ratings, and thermal operating range while meeting equivalent compliance certifications. Substitute selection becomes necessary when original inventory is unavailable or when design requirements permit relaxed tolerance specifications.

Substiute Parts

34104C

Murata Power Solutions Inc.In Stock: 74334104C Datasheet

Current PartRFQ

SRR4018-101Y

Bourns Inc.In Stock: 9079SRR4018-101Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns SRR4018-101Y qualifies as a functional equivalent to the 34104C based on the following substitution criteria:

Matching Parameters:

• Inductance: Both parts specify 100 µH
• Operating Temperature: Both rated -40°C to 125°C
• Shielding: Both are shielded designs
• Mounting: Both are surface mount configurations
• Compliance: Both are ROHS3 compliant with unlimited MSL rating

Allowable Variations:

• Current Rating: SRR4018-101Y rated 400 mA exceeds the 34104C requirement of 280 mA, providing design margin
• DC Resistance: SRR4018-101Y specifies 1.35Ohm maximum, which is lower than the 34104C at 1.7Ohm maximum
• Tolerance: SRR4018-101Y tolerance of ±30% is wider than 34104C at ±20%, acceptable for applications not requiring tighter inductance control
• Package Dimensions: SRR4018-101Y measures 4.80mm x 4.80mm versus 34104C at 5.20mm x 5.20mm; both maintain identical 2.00mm seated height

Parameter Comparison

Engineering Selection Recommendations

Both the 34104C and SRR4018-101Y maintain Active product status with full ROHS3 compliance and REACH unaffected designation. Selection between these parts depends on application-specific constraints:

The 34104C remains the preferred choice when the original design specifies the tighter ±20% inductance tolerance or when the nonstandard 5.20mm x 5.20mm footprint is a critical layout requirement.

The SRR4018-101Y serves as a direct functional substitute when the application can accommodate the ±30% tolerance specification, the slightly reduced footprint of 4.80mm x 4.80mm, or when the lower DC resistance of 1.35Ohm provides beneficial performance characteristics. The higher 400 mA current rating ensures operation within safe margins for circuits designed around the 280 mA specification.

Both parts are suitable for industrial temperature range applications and maintain identical thermal operating limits.

Frequently Asked Questions (FAQ)

Q: Can the SRR4018-101Y be used as a direct replacement for the 34104C in existing designs?

A: Yes, provided the circuit design does not require the tighter ±20% inductance tolerance of the 34104C. The SRR4018-101Y meets or exceeds all critical electrical parameters including current rating, DC resistance, and operating temperature range. PCB layout verification is required due to the 0.40mm reduction in footprint dimensions.

Q: What is the impact of the different DC resistance values?

A: The SRR4018-101Y DC resistance of 1.35Ohm maximum is lower than the 34104C specification of 1.7Ohm maximum. This results in reduced power dissipation and heat generation in the substitute part, which is beneficial for thermal management in the application circuit.

Q: Does the wider tolerance of the SRR4018-101Y affect circuit performance?

A: The ±30% tolerance of the SRR4018-101Y is wider than the ±20% tolerance of the 34104C. Applications requiring precise inductance values for frequency-dependent circuits should verify that the wider tolerance remains acceptable for the intended function.

Q: Are there any packaging or mounting differences?

A: Both parts are surface mount components with identical 2.00mm seated height. The SRR4018-101Y footprint is 4.80mm x 4.80mm compared to the 34104C at 5.20mm x 5.20mm. PCB land pattern verification is necessary before substitution.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the 34104C and SRR4018-101Y are ROHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity level (MSL 1) ratings, ensuring equivalent compliance for regulated applications.