Bourns 9130-20 Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9130-20 is a 1 µH unshielded wirewound inductor rated for 385 mA with a maximum DC resistance of 1 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 9130-20 operates across a temperature range of -55°C to 125°C and is RoHS non-compliant.

Substiute Parts

9130-20

Bourns Inc.In Stock: 8919130-20 Datasheet

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SC301R0KR

TE Connectivity Passive ProductIn Stock: 1079SC301R0KR Datasheet

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SC301R0KT

TE Connectivity Passive ProductIn Stock: 2630SC301R0KT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the Bourns 9130-20 is based on the following critical parameters:

• Inductance Value: 1 µH (exact match required)
• Tolerance: ±10% (must match or be tighter)
• Current Rating: Minimum 385 mA (substitute must meet or exceed)
• DC Resistance: Maximum 1 Ohm (substitute must meet or be lower)
• Q @ Frequency: 25 @ 25 MHz (must match or exceed)
• Self Resonant Frequency: 230 MHz (must match or exceed)
• Operating Temperature Range: Must support -55°C minimum and 125°C maximum
• Mounting Type: Through Hole Axial (form factor compatibility)

The TE Connectivity SC30 series inductors (SC301R0KR and SC301R0KT) meet these substitution criteria with identical inductance, tolerance, DC resistance, Q factor, and self-resonant frequency specifications. Both variants are active products with improved current ratings (420 mA) and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both TE Connectivity SC30 series inductors (SC301R0KR and SC301R0KT) are direct functional equivalents to the Bourns 9130-20. Selection between these two variants depends on packaging requirements:

SC301R0KR (Tape & Reel): Suitable for automated assembly processes requiring continuous reel feeding. Provides 991 pieces in stock.

SC301R0KT (Cut Tape): Suitable for manual assembly, prototyping, or lower-volume production runs. Provides 2590 pieces in stock.

Both substitute parts offer advantages over the original component: active product status ensures long-term availability, ROHS3 compliance meets current regulatory requirements, and higher current ratings (420 mA vs. 385 mA) provide additional design margin. The operating temperature maximum of 100°C on substitute parts is lower than the original 125°C specification; applications requiring operation above 100°C must evaluate thermal requirements independently.

Frequently Asked Questions (FAQ)

Q: Can SC301R0KR and SC301R0KT be used interchangeably with the Bourns 9130-20?

A: Yes, both TE Connectivity parts meet all critical electrical parameters: 1 µH inductance, ±10% tolerance, 1 Ohm maximum DC resistance, and identical Q factor and self-resonant frequency. The primary difference is packaging format (Tape & Reel vs. Cut Tape), not electrical performance.

Q: What is the difference between SC301R0KR and SC301R0KT?

A: Both parts are electrically identical. SC301R0KR comes in Tape & Reel packaging for automated assembly, while SC301R0KT comes in Cut Tape packaging for manual assembly or lower-volume applications. Choose based on your assembly process requirements.

Q: Does the shielding difference affect substitution?

A: The Bourns 9130-20 is unshielded while both TE Connectivity substitutes are shielded. Shielding reduces electromagnetic interference emission and susceptibility. For applications sensitive to EMI, the shielded design of the substitute parts provides improved performance. For applications where shielding is not required, the shielded design does not create incompatibility.

Q: What is the temperature limitation of the substitute parts?

A: TE Connectivity SC30 series inductors operate from -55°C to 100°C, compared to the original part's -55°C to 125°C range. Applications requiring sustained operation above 100°C must evaluate thermal performance independently or consider alternative components.

Q: Are the substitute parts RoHS compliant?

A: Yes, both SC301R0KR and SC301R0KT are ROHS3 compliant, meeting current environmental regulations. The original Bourns 9130-20 is RoHS non-compliant.

Q: What are the physical size differences?

A: The Bourns 9130-20 measures 0.095" diameter × 0.250" length (2.41mm × 6.35mm). The TE Connectivity substitutes measure 0.165" diameter × 0.394" length (4.20mm × 10.00mm). Verify PCB layout and mechanical clearance before substitution.