Bourns 5704 275µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5704 is a 275µH unshielded toroidal inductor rated for 2A continuous current with a maximum DC resistance of 240mOhm. This through-hole component features an iron powder core and operates across the temperature range of -55°C to 105°C. The 5704 is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. Substitute parts must maintain identical electrical specifications and mechanical form factors to ensure direct compatibility in existing circuit designs.

Substiute Parts

5704

Bourns Inc.In Stock: 8155704 Datasheet

Current PartRFQ

5704-RC

Bourns Inc.In Stock: 10235704-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5704 is determined by strict equivalence across the following critical parameters:

• Inductance value: 275 µH with ±15% tolerance
• Current rating: 2 A minimum
• DC resistance: 240 mOhm maximum
• Core material: Iron powder
• Shielding configuration: Unshielded
• Mounting technology: Through hole
• Package form factor: Radial, vertical (open)
• Physical dimensions: 0.875" diameter x 0.437" width
• Operating temperature range: -55°C to 105°C

The Bourns 5704-RC meets all these criteria and qualifies as a direct substitute. The primary distinction between the main part and substitute is product status and packaging configuration, with the 5704-RC available in bulk packaging and maintaining active product status.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 5704-RC is the direct equivalent for the obsolete Bourns 5704. All electrical and mechanical parameters are identical, ensuring pin-for-pin and form-factor compatibility. The 5704-RC is available in active production status with ROHS3 compliance, making it the appropriate selection for new designs and replacement applications. The transition from the non-compliant 5704 to the ROHS3-compliant 5704-RC aligns with current regulatory requirements while maintaining full functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 5704-RC be used as a direct replacement for the Bourns 5704?

A: Yes. The 5704-RC is electrically and mechanically identical to the 5704 across all specified parameters, including inductance, current rating, DC resistance, core material, dimensions, and operating temperature range. Direct substitution is valid for all applications.

Q: What is the difference between the Bourns 5704 and 5704-RC?

A: The primary differences are product status and packaging. The 5704 is obsolete and non-RoHS compliant, while the 5704-RC is an active product with ROHS3 compliance. Both parts are electrically and mechanically equivalent.

Q: Are there any packaging differences between these parts?

A: The 5704 is supplied in standard packaging, while the 5704-RC is available in bulk packaging. Both maintain identical through-hole radial, vertical (open) form factors and physical dimensions.

Q: What compliance certifications apply to these inductors?

A: The 5704 is RoHS non-compliant. The 5704-RC is ROHS3 compliant. Both parts are REACH unaffected and classified under ECCN EAR99.

Q: Can these inductors be used in high-temperature applications?

A: Yes. Both the 5704 and 5704-RC operate across the temperature range of -55°C to 105°C, supporting applications requiring extended thermal operating windows.

Q: What is the inductance tolerance for these parts?

A: Both parts have an inductance tolerance of ±15% at the 1 kHz test frequency.