Bourns 2306-H 27µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 2306-H is a 27µH unshielded toroidal inductor rated for 15.6A continuous current with 8mOhm maximum DC resistance. This through-hole component is designed for radial, horizontal mounting in power conversion and filtering applications. The 2306-H carries obsolete product status, making identification of active equivalent parts essential for ongoing production support and procurement planning.

Substiute Parts

2306-H
Bourns Inc.In Stock: 8282306-H Datasheet
2306-H
Current Part
2306-H-RC
Bourns Inc.In Stock: 8012306-H-RC Datasheet
2306-H-RC
Direct

Key Parameters

Parameter Value
Inductance 27 µH
Inductance Tolerance ±15%
Current Rating 15.6 A
DC Resistance (Max) 8 mOhm
Core Material Iron Powder
Shielding Unshielded
Mounting Type Through Hole
Package Type Radial, Horizontal (Open)
Operating Temperature Range -55°C to 105°C
Physical Diameter 1.280" (32.51mm)
Physical Height 0.650" (16.51mm)

Substitute Part Grouping Explanation

Substitution eligibility for the 2306-H is determined by strict equivalence across the following parameters:

  • Inductance value: 27µH with ±15% tolerance
  • Current rating: 15.6A minimum
  • DC resistance: 8mOhm maximum
  • Core material: Iron powder
  • Shielding configuration: Unshielded
  • Mounting type: Through hole
  • Package orientation: Radial, horizontal (open)
  • Physical dimensions: 1.280" diameter, 0.650" height maximum
  • Operating temperature range: -55°C to 105°C minimum

The 2306-H-RC qualifies as a direct substitute based on identical electrical specifications and mechanical form factor. The primary distinction is product status and packaging configuration.

Parameter Comparison

Parameter 2306-H (Main Part) 2306-H-RC (Substitute)
Inductance 27 µH 27 µH
Inductance Tolerance ±15% ±15%
Current Rating 15.6 A 15.6 A
DC Resistance (Max) 8 mOhm 8 mOhm
Core Material Iron Powder Iron Powder
Shielding Unshielded Unshielded
Mounting Type Through Hole Through Hole
Package Type Radial, Horizontal (Open) Radial, Horizontal (Open)
Operating Temperature -55°C to 105°C -55°C to 105°C
Physical Diameter 1.280" (32.51mm) 1.280" (32.51mm)
Physical Height 0.650" (16.51mm) 0.650" (16.51mm)
Product Status Obsolete Active
RoHS Compliance Non-compliant ROHS3 Compliant
Packaging Standard Bulk

Engineering Selection Recommendations

The 2306-H-RC is the direct active equivalent for the obsolete 2306-H. Selection between these parts is determined by regulatory and procurement requirements:

Use 2306-H-RC for new designs and ongoing production where ROHS3 compliance is required or preferred. The 2306-H-RC maintains identical electrical and mechanical specifications while offering active product status and improved regulatory compliance.

The 2306-H remains available in limited inventory (794 units) for legacy system support or applications where RoHS non-compliance is acceptable. Transition to 2306-H-RC is recommended for long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the 2306-H-RC be used as a direct replacement for the 2306-H in existing designs?

A: Yes. The 2306-H-RC is electrically and mechanically identical to the 2306-H. Both components share the same inductance (27µH), current rating (15.6A), DC resistance (8mOhm max), core material (iron powder), and physical dimensions. PCB layout and circuit performance remain unchanged.

Q: What is the difference between the 2306-H and 2306-H-RC?

A: The primary differences are product status and regulatory compliance. The 2306-H is obsolete and RoHS non-compliant. The 2306-H-RC is active and ROHS3 compliant. Packaging differs (standard vs. bulk), but electrical and mechanical specifications are identical.

Q: Why is the 2306-H listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. The 2306-H-RC represents the current active equivalent in the Bourns 2300 series. Existing inventory of the 2306-H remains available for legacy applications.

Q: Are there any performance differences between these parts?

A: No. Both parts operate identically within the specified parameters: 27µH inductance at ±15% tolerance, 15.6A current rating, 8mOhm maximum DC resistance, and -55°C to 105°C operating temperature range.

Q: What packaging options are available?

A: The 2306-H is supplied in standard packaging. The 2306-H-RC is supplied in bulk packaging. Both use through-hole radial, horizontal (open) configuration suitable for manual or automated assembly.

Q: Is RoHS compliance a factor in selecting between these parts?

A: RoHS compliance becomes relevant only if your application or market requires it. The 2306-H-RC is ROHS3 compliant; the 2306-H is not. For applications without RoHS requirements, both parts are functionally equivalent.

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