Bourns 9310-10-RC 820 nH Axial Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9310-10-RC is a 820 nH unshielded drum core wirewound inductor rated for 900 mA with 220mOhm maximum DC resistance. This through-hole axial component operates across -55°C to 105°C and is classified as obsolete. Due to its discontinued status, equivalent substitute parts from active product lines are necessary to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

9310-10-RC

Bourns Inc.In Stock: 8639310-10-RC Datasheet

Current PartRFQ

1537R-10K

API Delevan Inc.In Stock: 10481537R-10K Datasheet

DirectRFQ

ER1537-10KM

API Delevan Inc.In Stock: 1019ER1537-10KM Datasheet

SimilarRFQ

ER1537-10KP

API Delevan Inc.In Stock: 1068ER1537-10KP Datasheet

SimilarRFQ

ER1537-10KR

API Delevan Inc.In Stock: 931ER1537-10KR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Inductance Value: 820 nH (exact match required)
• Tolerance: ±10% (exact match required)
• DC Resistance: 220mOhm maximum (exact match required)
• Current Rating: Minimum 900 mA (equal or higher acceptable)
• Operating Temperature Range: Minimum -55°C ~ 105°C (equal or wider acceptable)
• Mounting Type: Through Hole (exact match required)
• Package: Axial (exact match required)
• Physical Dimensions: 0.156" Dia x 0.375" L (exact match required)
• Q @ 25MHz: 50 (exact match required)
• Self Resonant Frequency: 220MHz (exact match required)

All substitute parts listed are from API Delevan Inc. and maintain identical electrical and mechanical specifications to the original Bourns component, with the exception of core material composition (phenolic vs. ferrite) and current rating enhancements where applicable.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: API Delevan 1537R-10K

The 1537R-10K is the optimal substitute for the Bourns 9310-10-RC. This part maintains all critical electrical parameters while offering enhanced current rating capability (1.02 A vs. 900 mA) and extended operating temperature range (-55°C ~ 125°C vs. -55°C ~ 105°C). Critically, the 1537R-10K retains ROHS3 compliance, matching the regulatory status of the original component. This part is actively manufactured and widely available.

Secondary Substitutes: API Delevan ER1537-10KM, ER1537-10KP, ER1537-10KR

These three ER1537 series variants provide electrical equivalence to the original Bourns part with identical inductance, tolerance, DC resistance, Q factor, and self-resonant frequency specifications. All three maintain the 900 mA current rating and -55°C ~ 105°C operating temperature range. However, these parts are RoHS non-compliant, which may restrict their use in applications subject to RoHS regulations. Selection among these three variants should be based on packaging and distribution channel requirements, as they are electrically identical.

For applications requiring RoHS compliance, the 1537R-10K is the only suitable substitute. For applications without RoHS constraints, any of the four API Delevan alternatives provide functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537R-10K be used as a direct replacement for the Bourns 9310-10-RC?

A: Yes. The 1537R-10K matches all critical electrical specifications: 820 nH inductance, ±10% tolerance, 220mOhm maximum DC resistance, 50 Q @ 25MHz, and 220MHz self-resonant frequency. Physical dimensions and through-hole axial mounting are identical. The enhanced current rating (1.02 A) and extended temperature range (-55°C ~ 125°C) provide additional design margin.

Q: What is the difference between the 1537R-10K and the ER1537 series parts?

A: The 1537R-10K is ROHS3 compliant, while ER1537-10KM, ER1537-10KP, and ER1537-10KR are RoHS non-compliant. Electrically, all four parts are equivalent. The ER1537 variants are available in Tape & Reel packaging, while the 1537R-10K also uses Tape & Reel. Selection depends on regulatory requirements and supply chain preferences.

Q: Are there any physical compatibility concerns when substituting these parts?

A: No. All substitute parts share identical physical dimensions (0.156" Dia x 0.375" L / 3.96mm x 9.53mm) and axial through-hole mounting configuration. PCB layout and mechanical assembly remain unchanged.

Q: Why is the Bourns 9310-10-RC obsolete?

A: The 9310 series has been discontinued by Bourns Inc. The API Delevan 1537R and ER1537 series provide active production alternatives with equivalent or superior electrical and thermal performance.

Q: Which substitute should I select for new designs?

A: For new designs, the API Delevan 1537R-10K is recommended. It provides ROHS3 compliance, active production status, enhanced current rating, and extended operating temperature range, ensuring long-term component availability and regulatory alignment.

Q: Can I mix substitute parts from different manufacturers in the same assembly?

A: Yes. All listed substitutes are electrically and mechanically equivalent. Mixed sourcing is acceptable from a functional standpoint, though procurement and quality assurance processes may prefer single-source standardization.