Equivalent & Substitute Parts for Bourns 9130-42

Part Overview

The Bourns 9130-42 is an 8.2 µH unshielded drum core wirewound inductor rated for 155 mA with a maximum DC resistance of 2.7 Ohm. This through-hole axial component operates across the temperature range of -55°C to 105°C. The 9130-42 is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Inductance	8.2 µH
Tolerance	±10%
Current Rating	155 mA
DC Resistance (Max)	2.7 Ohm
Shielding	Unshielded
Q @ Frequency	55 @ 7.9 MHz
Self Resonant Frequency	55 MHz
Operating Temperature	-55°C to 105°C
Mounting Type	Through Hole
Package	Axial
Size	0.095" Dia x 0.250" L (2.41 mm x 6.35 mm)

Substitute Part Grouping Explanation

Substitution of the Bourns 9130-42 is based on electrical and mechanical parameter equivalence. The following criteria determine valid substitutes:

Inductance value: 8.2 µH with ±10% tolerance
Current rating: 155 mA minimum
DC resistance: 2.7 Ohm maximum
Shielding configuration: Unshielded
Q factor and self-resonant frequency: 55 @ 7.9 MHz and 55 MHz respectively
Operating temperature range: -55°C to 105°C
Mounting and package: Through-hole axial configuration
Physical dimensions: 0.095" Dia x 0.250" L (2.41 mm x 6.35 mm)

The API Delevan ER1025 series parts (ER1025-42KM, ER1025-42KP, ER1025-42KR) meet all specified electrical and mechanical parameters. These parts differ in core material (iron vs. ferrite) and construction type (molded vs. drum core), but maintain functional equivalence within the defined parameter set.

Parameter Comparison

Parameter	Bourns 9130-42	API Delevan ER1025-42KM	API Delevan ER1025-42KP	API Delevan ER1025-42KR
Inductance	8.2 µH	8.2 µH	8.2 µH	8.2 µH
Tolerance	±10%	±10%	±10%	±10%
Current Rating	155 mA	155 mA	155 mA	155 mA
DC Resistance (Max)	2.7 Ohm	2.7 Ohm	2.7 Ohm	2.7 Ohm
Shielding	Unshielded	Unshielded	Unshielded	Unshielded
Q @ Frequency	55 @ 7.9 MHz	55 @ 7.9 MHz	55 @ 7.9 MHz	55 @ 7.9 MHz
Self Resonant Frequency	55 MHz	55 MHz	55 MHz	55 MHz
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package	Axial	Axial	Axial	Axial
Size	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L
Product Status	Obsolete	Active	Active	Active
Packaging Option	-	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

The Bourns 9130-42 is obsolete, requiring substitution with active production alternatives. All three API Delevan ER1025 series parts (ER1025-42KM, ER1025-42KP, ER1025-42KR) are active products with current inventory availability and meet all specified electrical and mechanical parameters.

ER1025-42KM and ER1025-42KP are standard molded inductors suitable for general applications. ER1025-42KR is qualified to MIL-PRF-39010/09 military specifications and is appropriate for applications requiring military-grade component certification.

All substitute parts maintain RoHS non-compliant status consistent with the original part. Compliance certifications (REACH Unaffected, ECCN EAR99, HTSUS 8504.50.8000) are identical across all parts.

Frequently Asked Questions (FAQ)

Q: Can ER1025-42KM, ER1025-42KP, and ER1025-42KR be used interchangeably with the Bourns 9130-42?

A: Yes. All three API Delevan parts meet the electrical and mechanical specifications of the Bourns 9130-42, including inductance, current rating, DC resistance, frequency characteristics, temperature range, and physical dimensions.

Q: What is the difference between the three ER1025 substitute options?

A: ER1025-42KM and ER1025-42KP are functionally equivalent molded inductors with identical electrical performance. ER1025-42KR is qualified to MIL-PRF-39010/09 military specifications. Selection depends on application requirements and procurement specifications.

Q: Does the change from drum core (Bourns 9130-42) to molded construction (ER1025 series) affect circuit performance?

A: No. The electrical parameters—inductance, tolerance, current rating, DC resistance, Q factor, and self-resonant frequency—are identical. The core material change from ferrite to iron and construction method change do not alter the specified electrical characteristics within the defined parameter set.

Q: Are the substitute parts available in the same packaging as the original?

A: The Bourns 9130-42 packaging specification was not provided. The ER1025 series parts are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes.

Q: Do the substitute parts have the same RoHS and compliance status?

A: Yes. All substitute parts maintain RoHS non-compliant status and identical REACH, ECCN, and HTSUS classifications as the original Bourns 9130-42.

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