Bourns 4629-RC Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Bourns 4629-RC is a 55 µH unshielded drum core wirewound inductor rated for 500 mA with a maximum DC resistance of 1 Ohm. Designed for through-hole axial mounting, this component operates across a temperature range of -55°C to 105°C and is ROHS3 compliant. The 4629-RC is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

4629-RC

Bourns Inc.In Stock: 9164629-RC Datasheet

Current PartRFQ

1532E

Hammond ManufacturingIn Stock: 11921532E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 4629-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 55 µH
• Current rating: 500 mA minimum
• DC resistance: 1 Ohm maximum
• Mounting type: Through hole axial configuration
• Physical dimensions: 0.290" Dia x 0.875" L (7.37mm x 22.22mm)
• Shielding classification: Unshielded
• Regulatory compliance: ROHS3 compliant

The Hammond Manufacturing 1532E meets all mandatory electrical and mechanical criteria for direct substitution. Tolerance variation (±10% vs. ±5%) and operating temperature range differences are noted but do not preclude functional equivalence in applications where the 4629-RC specifications are required.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1532E is a direct functional equivalent for the obsolete Bourns 4629-RC. Both components share identical inductance values, current ratings, DC resistance specifications, physical dimensions, and axial through-hole mounting configuration. Both maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production continuity.

The Hammond 1532E is currently in active production status, ensuring supply chain availability. The tolerance specification difference (±10% vs. ±5%) and unspecified operating temperature range for the 1532E should be evaluated against application-specific requirements. Identical self-resonant frequency (17MHz) and equivalent Q-factor performance at test frequency support direct substitution in RF and filtering applications.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1532E replace the Bourns 4629-RC in existing designs?

A: Yes. Both inductors share identical inductance (55 µH), current rating (500 mA), DC resistance (1 Ohm max), physical dimensions (0.290" Dia x 0.875" L), and axial through-hole mounting. Electrical performance parameters including Q-factor and self-resonant frequency are equivalent.

Q: What is the tolerance difference between these parts?

A: The Bourns 4629-RC specifies ±5% tolerance, while the Hammond 1532E specifies ±10% tolerance. Applications requiring tighter inductance tolerance should evaluate whether the wider tolerance of the 1532E is acceptable for circuit performance.

Q: Are both parts RoHS compliant?

A: Yes. Both the Bourns 4629-RC and Hammond 1532E are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the physical compatibility between these inductors?

A: Both components are identical in physical dimensions (0.290" Dia x 0.875" L / 7.37mm x 22.22mm) and use axial through-hole mounting. Direct board-level substitution is supported without PCB layout modification.

Q: Why is the Bourns 4629-RC listed as obsolete?

A: The Bourns 4629-RC has been discontinued by the manufacturer. The Hammond 1532E provides equivalent electrical and mechanical performance with active production status and current supply chain availability.