Equivalent & Substitute Parts for Murata 1422455C

Part Overview

The Murata 1422455C is a 220 µH unshielded wirewound inductor rated for 5.5 A continuous current with a maximum DC resistance of 62mOhm. This through-hole radial component operates across the temperature range of -40°C to 85°C and is classified as Active product status with full ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

1422455C

Murata Power Solutions Inc.In Stock: 8921422455C Datasheet

Current PartRFQ

1130-221K-RC

Bourns Inc.In Stock: 10411130-221K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Murata 1422455C is determined by the following critical parameters:

• Inductance Value: 220 µH with ±10% tolerance
• Current Rating: Minimum 5.5 A continuous current capability
• DC Resistance: Maximum 62mOhm to maintain equivalent power dissipation characteristics
• Mounting Configuration: Through-hole radial vertical cylinder package
• Shielding Classification: Unshielded construction
• Operating Temperature: Minimum range of -40°C to 85°C

The Bourns 1130-221K-RC meets these substitution criteria with identical inductance, current rating, and mounting type. While the DC resistance specification is higher at 80mOhm maximum, this remains within acceptable tolerance for equivalent functional performance in the 220 µH, 5.5 A category.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 1422455C and Bourns 1130-221K-RC are Active product status components with full ROHS3 compliance and REACH unaffected status. The Bourns substitute provides an extended operating temperature range (-55°C to 105°C) compared to the Murata specification (-40°C to 85°C). The primary electrical difference is the DC resistance specification, where the Bourns part specifies 80mOhm maximum versus 62mOhm for the Murata. Selection between these parts should be based on application-specific requirements for thermal performance and DC resistance losses within the circuit design constraints.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 1130-221K-RC be used as a direct replacement for the Murata 1422455C?

A: Yes, within the specified electrical and mechanical parameters. Both components share identical inductance (220 µH), current rating (5.5 A), tolerance (±10%), mounting type (through-hole), and package configuration (radial vertical cylinder). The DC resistance difference (80mOhm vs. 62mOhm) must be evaluated for thermal impact in the specific application circuit.

Q: What is the significance of the DC resistance difference between these parts?

A: DC resistance directly affects power dissipation in the inductor. The Bourns part dissipates approximately 29% more power at rated current (I²R losses). Applications sensitive to thermal performance or operating near maximum current ratings should account for this difference in thermal management calculations.

Q: Are both parts suitable for the same temperature operating range?

A: The Murata part is specified for -40°C to 85°C operation. The Bourns substitute extends this to -55°C to 105°C. Applications requiring operation below -40°C or above 85°C must use the Bourns part. For applications within the Murata specification range, both are acceptable.

Q: Do both parts have equivalent compliance certifications?

A: Yes. Both the Murata 1422455C and Bourns 1130-221K-RC are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and commercial applications.

Q: What is the physical size difference between these inductors?

A: The Murata part measures 1.264" diameter × 0.917" height. The Bourns part measures 1.100" diameter × 0.840" height. The Bourns substitute is physically smaller and may offer advantages in space-constrained PCB layouts while maintaining the same radial through-hole mounting configuration.