Murata Power Solutions 50503AC Common Mode Choke - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 50503AC is a 4-line common mode choke (CMC) designed for signal line filtering applications. This surface mount toroid component operates at 51 µH inductance at 100 kHz with a maximum current rating of 800mA and DC resistance of 168mOhm. The part is actively produced and widely used in EMI suppression circuits for multi-conductor signal paths. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

50503AC

Murata Power Solutions Inc.In Stock: 215450503AC Datasheet

Current PartRFQ

50513AC

Murata Power Solutions Inc.In Stock: 201250513AC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Murata Power Solutions 50503AC has one identified parametric equivalent: the 50513AC. Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Inductance value and measurement frequency (51 µH @ 100 kHz)
• Current rating (800mA maximum)
• DC resistance (168mOhm maximum)
• Number of lines (4-line configuration)
• Filter type (Signal Line)
• Mounting type (Surface Mount)
• Physical dimensions and package style (Horizontal, 4 Gull Wing; 6.00mm x 7.10mm x 5.00mm)
• Operating temperature range (-40°C to 125°C)
• Compliance certifications (ROHS3, REACH Unaffected)

Both parts belong to the Murata 5000A series and maintain identical electrical and mechanical specifications, enabling direct substitution in applications requiring 4-line common mode filtering.

Parameter Comparison

Engineering Selection Recommendations

Both the 50503AC and 50513AC are active production parts from Murata Power Solutions Inc. and carry identical compliance certifications: ROHS3 Compliant and REACH Unaffected status. Selection between these parts should be based on availability and procurement lead times, as they are electrically and mechanically interchangeable. Both parts support applications requiring 4-line common mode filtering with 51 µH inductance, 800mA current handling, and operation across the -40°C to 125°C temperature range. The MSL rating of 1 (Unlimited) indicates minimal moisture sensitivity, reducing handling and storage constraints during manufacturing.

Frequently Asked Questions (FAQ)

Q: Can the 50513AC be used as a direct replacement for the 50503AC?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including inductance, current rating, DC resistance, physical dimensions, and compliance certifications. Direct substitution is supported without circuit redesign.

Q: What determines whether a part qualifies as a substitute for the 50503AC?

A: Substitution requires exact equivalence in inductance value and measurement frequency (51 µH @ 100 kHz), current rating (800mA), DC resistance (168mOhm), number of lines (4), mounting type (Surface Mount), package style (Horizontal, 4 Gull Wing), physical dimensions (6.00mm x 7.10mm x 5.00mm), operating temperature range (-40°C to 125°C), and compliance status (ROHS3, REACH Unaffected).

Q: Are there any differences in packaging or handling between the 50503AC and 50513AC?

A: No. Both parts are supplied in Tape & Reel (TR) packaging with identical MSL rating of 1 (Unlimited), indicating equivalent moisture sensitivity and handling requirements.

Q: What is the application purpose of this 4-line common mode choke?

A: The 50503AC is designed for signal line filtering and EMI suppression in multi-conductor signal paths. The 4-line configuration supports applications such as differential pair filtering, multi-channel data lines, or balanced signal transmission requiring common mode noise attenuation.

Q: Can this part be used in high-temperature applications?

A: Yes. The operating temperature range of -40°C to 125°C supports both industrial and automotive temperature environments. Verify that the specific application circuit design accounts for inductance and resistance variations across the full temperature range.