Bourns 1130-101K Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Bourns 1130-101K is a 100 µH unshielded drum core wirewound inductor rated for 9 A continuous current with a maximum DC resistance of 34 mOhm. This through-hole radial component operates across the temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance in power supply filtering, signal conditioning, and energy storage circuits.

The 1130-101K series is classified as obsolete. Equivalent and substitute parts are available to maintain design continuity and ensure procurement flexibility for new production runs and field replacements.

Key Parameters

Parameter	Value
Inductance	100 µH
Tolerance	±10%
Current Rating	9 A
DC Resistance (Max)	34 mOhm
Core Type	Ferrite Drum Core, Unshielded
Mounting Type	Through Hole
Package	Radial, Vertical Cylinder
Physical Dimensions	1.100" Dia (27.94 mm), Height 0.840" (21.34 mm)
Operating Temperature	-55°C to 105°C
Inductance Test Frequency	1 kHz

Substitute Part Grouping Explanation

Substitute parts for the 1130-101K are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalent (Packaging Variant): The 1130-101K-RC is an active production variant of the same base product (1130 series) manufactured by Bourns Inc. It maintains identical electrical specifications: 100 µH inductance, ±10% tolerance, 9 A current rating, and 34 mOhm maximum DC resistance. The primary difference is packaging format (bulk versus standard) and product status (active versus obsolete). Physical dimensions and mounting characteristics are identical.

Similar Substitutes (Cross-Manufacturer): The Vishay Dale IHB3BV101K and IHB3EB101K are functionally similar inductors with the same inductance value (100 µH), tolerance (±10%), DC resistance (34 mOhm), core type (ferrite, unshielded), and mounting configuration (through-hole radial, vertical cylinder). These parts share identical physical dimensions and operating temperature range. The key electrical difference is the current rating: Vishay Dale parts are rated for 6 A versus the Bourns 9 A rating.

Substitution is valid when the application current requirement does not exceed 6 A.

Parameter Comparison

Parameter	1130-101K (Bourns)	1130-101K-RC (Bourns)	IHB3BV101K (Vishay Dale)	IHB3EB101K (Vishay Dale)
Inductance	100 µH	100 µH	100 µH	100 µH
Tolerance	±10%	±10%	±10%	±10%
Current Rating	9 A	9 A	6 A	6 A
DC Resistance (Max)	34 mOhm	34 mOhm	34 mOhm	34 mOhm
Core Type	Ferrite Drum Core, Unshielded	Ferrite Drum Core, Unshielded	Ferrite, Unshielded	Ferrite, Unshielded
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package	Radial, Vertical Cylinder	Radial, Vertical Cylinder	Radial, Vertical Cylinder	Radial, Vertical Cylinder
Physical Dimensions	1.100" Dia, 0.840" H	1.100" Dia, 0.840" H	1.100" Dia, 0.840" H	1.100" Dia, 0.840" H
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Product Status	Obsolete	Active	Active	Active
RoHS Compliance	Non-compliant	ROHS3 Compliant	Not specified	Not specified

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance): The 1130-101K-RC is the primary substitute for the obsolete 1130-101K. Both parts are manufactured by Bourns Inc. and maintain identical electrical and mechanical specifications. The 1130-101K-RC is in active production status with higher inventory availability (2261 pcs versus 831 pcs). For new designs or production runs requiring RoHS compliance, the 1130-101K-RC is ROHS3 compliant, whereas the original 1130-101K is non-compliant.

For Current-Limited Applications (≤6 A): The Vishay Dale IHB3BV101K and IHB3EB101K are suitable substitutes when the circuit design operates at or below 6 A continuous current. These parts maintain the same inductance, tolerance, DC resistance, core type, and physical form factor. Selection between these two Vishay Dale variants should be based on availability and packaging requirements, as their electrical specifications are identical.

Compliance Considerations: Applications requiring RoHS compliance should prioritize the 1130-101K-RC. The original 1130-101K is RoHS non-compliant and should be replaced in new production designs.

Frequently Asked Questions (FAQ)

Q: Can the 1130-101K-RC be used as a direct replacement for the 1130-101K? A: Yes. The 1130-101K-RC is electrically and mechanically identical to the 1130-101K. Both parts have 100 µH inductance, 9 A current rating, 34 mOhm DC resistance, and identical physical dimensions. The primary differences are product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant).

Q: What is the key limitation when substituting Vishay Dale IHB3BV101K or IHB3EB101K parts? A: The Vishay Dale inductors are rated for 6 A maximum continuous current, compared to the Bourns 9 A rating. Substitution is valid only for applications where the circuit current does not exceed 6 A. Exceeding this rating may result in inductor saturation and performance degradation.

Q: Are the physical dimensions identical across all four parts? A: Yes. All parts share the same radial, vertical cylinder package with 1.100" diameter and 0.840" maximum seated height. Through-hole mounting compatibility is maintained across all variants.

Q: Which substitute part should be selected for new production designs? A: The 1130-101K-RC is the recommended choice for new production. It is in active production status, ROHS3 compliant, and maintains identical electrical specifications to the original 1130-101K. For applications limited to 6 A or below, the Vishay Dale IHB3BV101K or IHB3EB101K are acceptable alternatives.

Q: Do all substitute parts operate across the same temperature range? A: Yes. All four parts operate across -55°C to 105°C, ensuring thermal compatibility in equivalent circuit applications.

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