Bourns 8230-18 Equivalent & Substitute Parts

Part Overview

The Bourns 8230-18 is a 820 nH unshielded wirewound inductor rated for 380 mA with a maximum DC resistance of 850 mOhm. This through-hole axial component operates across a temperature range of -55°C to 105°C and features a phenolic core with ±10% inductance tolerance. The 8230-18 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Inductance	820 nH
Inductance Tolerance	±10%
Current Rating	380 mA
DC Resistance (Max)	850 mOhm
Core Material	Phenolic
Shielding	Unshielded
Q @ 25 MHz	28
Self Resonant Frequency	250 MHz
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole
Package	Axial
Physical Dimensions	0.120" Dia × 0.300" L (3.05 mm × 7.62 mm)

Substitute Part Grouping Explanation

The 8230-18-RC serves as a direct substitute for the 8230-18 based on identical electrical and mechanical specifications. Substitution is valid when the following parameters match exactly:

Inductance value: 820 nH
Inductance tolerance: ±10%
Current rating: 380 mA
DC resistance: 850 mOhm maximum
Core material: Phenolic
Shielding configuration: Unshielded
Mounting type: Through hole axial
Physical dimensions: 0.120" Dia × 0.300" L
Operating temperature range: -55°C to 105°C
Q factor @ 25 MHz: 28
Self resonant frequency: 250 MHz

The 8230-18-RC maintains full electrical and mechanical compatibility with the original part while offering active product status and improved regulatory compliance.

Parameter Comparison

Parameter	8230-18 (Obsolete)	8230-18-RC (Active)
Inductance	820 nH	820 nH
Inductance Tolerance	±10%	±10%
Current Rating	380 mA	380 mA
DC Resistance (Max)	850 mOhm	850 mOhm
Core Material	Phenolic	Phenolic
Shielding	Unshielded	Unshielded
Q @ 25 MHz	28	28
Self Resonant Frequency	250 MHz	250 MHz
Operating Temperature Range	-55°C to 105°C	-55°C to 105°C
Mounting Type	Through Hole	Through Hole
Package	Axial	Axial
Physical Dimensions	0.120" Dia × 0.300" L	0.120" Dia × 0.300" L
Product Status	Obsolete	Active
RoHS Compliance	Non-compliant	ROHS3 Compliant
Packaging	Standard	Bulk

Engineering Selection Recommendations

The 8230-18-RC is the appropriate selection for applications currently using the obsolete 8230-18. The substitute part provides identical electrical performance and mechanical compatibility while offering active product status and ROHS3 compliance. The transition from non-compliant to ROHS3-compliant status aligns with current regulatory requirements for component procurement and supply chain management.

Frequently Asked Questions (FAQ)

Q: Can the 8230-18-RC be used as a direct replacement for the 8230-18?

A: Yes. The 8230-18-RC maintains identical inductance, current rating, DC resistance, core material, shielding, temperature range, and physical dimensions. No circuit modifications are required.

Q: What is the primary difference between these parts?

A: The 8230-18-RC is an active product with ROHS3 compliance, while the 8230-18 is obsolete and non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences?

A: The 8230-18-RC is supplied in bulk packaging, while the original 8230-18 uses standard packaging. This does not affect component performance or compatibility.

Q: Does the RoHS compliance change affect circuit performance?

A: No. ROHS3 compliance reflects manufacturing process changes only and does not alter electrical characteristics or performance parameters.

Q: What is the self-resonant frequency significance?

A: The 250 MHz self-resonant frequency defines the upper frequency limit for reliable inductor operation. Both parts maintain this specification.

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