Bourns 9250-475-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9250-475-RC is a 4.7 mH shielded drum core wirewound inductor rated for 31 mA maximum current with 81.6 Ohm DC resistance. This through-hole axial component operates across the temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance with ferrite core shielding. The 9250-475-RC has reached obsolete product status, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

9250-475-RC

Bourns Inc.In Stock: 9349250-475-RC Datasheet

Current PartRFQ

9250A-475-RC

Bourns Inc.In Stock: 21849250A-475-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 9250-475-RC is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 4.7 mH with ±10% tolerance
• Current rating: 31 mA maximum
• DC resistance: 81.6 Ohm maximum
• Shielding requirement: Shielded configuration
• Core material: Ferrite
• Q factor: 45 @ 250 kHz
• Self-resonant frequency: 740 kHz
• Mounting: Through-hole axial package
• Physical dimensions: 0.162" Dia x 0.410" L (4.11 mm x 10.41 mm)
• Compliance: ROHS3 Compliant

The Bourns 9250A-475-RC qualifies as a direct substitute based on matching all critical electrical parameters and physical form factor. The primary difference is the transition from drum core wirewound construction to molded construction, with an extended operating temperature range to 125°C and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 9250A-475-RC is the direct active equivalent for the obsolete 9250-475-RC. Both components maintain identical electrical specifications across inductance, current rating, DC resistance, Q factor, and self-resonant frequency. Physical dimensions and axial through-hole mounting are preserved, ensuring PCB compatibility without layout modification.

The 9250A-475-RC offers extended operating temperature capability to 125°C compared to the original 105°C maximum, providing additional thermal margin in applications. The transition from drum core wirewound to molded construction represents a manufacturing evolution within the Bourns 9250 series while maintaining electrical performance equivalence.

Both parts carry ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current procurement and deployment. The 9250A-475-RC is available in active inventory status, ensuring reliable long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-475-RC be used as a direct replacement for the 9250-475-RC in existing designs?

A: Yes. The 9250A-475-RC matches all critical electrical parameters including inductance, current rating, DC resistance, Q factor, and self-resonant frequency. Physical dimensions and axial through-hole mounting are identical, allowing direct PCB substitution without design modification.

Q: What is the primary difference between the 9250-475-RC and 9250A-475-RC?

A: The main difference is construction type: the 9250-475-RC uses drum core wirewound design, while the 9250A-475-RC uses molded construction. The 9250A-475-RC also extends the maximum operating temperature to 125°C versus 105°C for the original part.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for current applications.

Q: Why is the 9250-475-RC listed as obsolete?

A: The 9250-475-RC has reached end-of-life status. The 9250A-475-RC represents the active continuation of this inductance value within the Bourns 9250 series, offering equivalent electrical performance with improved manufacturing and extended temperature range.

Q: Is the packaging different between these parts?

A: Both parts use axial through-hole packaging with identical physical dimensions of 0.162" Dia x 0.410" L (4.11 mm x 10.41 mm). The 9250A-475-RC is available in bulk packaging.