Bourns 9310-12 Equivalent & Substitute Parts

Part Overview

The Bourns 9310-12 is a 1 µH unshielded drum core wirewound inductor rated for 830 mA with a maximum DC resistance of 290 mOhm. This axial through-hole component operates across a temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance at 25 MHz. The product is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring compatible inductance characteristics.

Substiute Parts

9310-12

Bourns Inc.In Stock: 10649310-12 Datasheet

Current PartRFQ

1537-12K

API Delevan Inc.In Stock: 16951537-12K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Bourns 9310-12 is determined by strict equivalence across the following critical parameters:

• Inductance value: 1 µH with ±10% tolerance
• Current rating: minimum 830 mA
• DC resistance: maximum 290 mOhm
• Shielding configuration: unshielded
• Mounting type: through hole axial
• Physical dimensions: 0.156" diameter × 0.375" length
• Frequency characteristics: Q of 50 @ 25 MHz and self-resonant frequency of 200 MHz
• Operating temperature range: minimum -55°C to 105°C

The API Delevan 1537-12K meets all substitution criteria with equivalent electrical performance and identical physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1537-12K is a direct functional equivalent for the obsolete Bourns 9310-12. Both components share identical inductance, tolerance, DC resistance, and frequency characteristics. The API Delevan part offers a higher current rating of 880 mA compared to the 830 mA specification of the Bourns part, providing additional margin in current-limited applications. The extended operating temperature range of -55°C to 125°C on the API Delevan part exceeds the Bourns specification, supporting broader thermal environments. Both parts maintain equivalent RoHS and REACH compliance status. The API Delevan 1537-12K is currently active in production, ensuring long-term availability for system support and new designs.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537-12K directly replace the Bourns 9310-12 in existing designs?

A: Yes. Both components are electrically and mechanically equivalent across all critical parameters: 1 µH inductance, ±10% tolerance, 290 mOhm maximum DC resistance, 50 Q @ 25 MHz, and identical axial through-hole package dimensions of 0.156" diameter × 0.375" length.

Q: What is the difference in current rating between these parts?

A: The Bourns 9310-12 is rated for 830 mA, while the API Delevan 1537-12K is rated for 880 mA. The higher rating on the API Delevan part provides additional current margin and does not affect compatibility in applications designed for the original 830 mA specification.

Q: Are there temperature range differences?

A: The Bourns 9310-12 operates from -55°C to 105°C, while the API Delevan 1537-12K operates from -55°C to 125°C. The extended upper temperature limit on the API Delevan part is compatible with all applications within the original Bourns temperature range.

Q: Do both parts have the same physical footprint?

A: Yes. Both components are packaged as axial through-hole inductors with identical dimensions of 0.156" diameter × 0.375" length, ensuring direct board-level compatibility without layout modifications.

Q: What is the product status difference?

A: The Bourns 9310-12 is obsolete, while the API Delevan 1537-12K is active in production. This makes the API Delevan part the recommended choice for new designs and ongoing system support.