Bourns 2318-V 330µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 2318-V is a 330µH unshielded toroidal inductor rated for 5.2A continuous current with 67mOhm maximum DC resistance. This through-hole component features an iron powder core and operates across the -55°C to 105°C temperature range. The 2318-V is classified as obsolete, making identification of compatible alternatives essential for ongoing production and maintenance applications. The primary substitute maintains identical electrical and mechanical specifications while offering improved compliance status and active product availability.

Substiute Parts

2318-V

Bourns Inc.In Stock: 7562318-V Datasheet

Current PartRFQ

2318-V-RC

Bourns Inc.In Stock: 20702318-V-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 2318-V-RC qualifies as a direct electrical and mechanical substitute based on the following matching parameters:

• Inductance value: 330 µH with ±15% tolerance
• Current rating: 5.2 A continuous
• DC resistance: 67 mOhm maximum
• Core material: Iron powder
• Shielding configuration: Unshielded
• Mounting method: Through hole
• Package geometry: Radial, vertical (open)
• Physical dimensions: 1.280" diameter × 0.650" width
• Operating temperature range: -55°C to 105°C
• Inductance measurement frequency: 1 kHz

These parameters define the functional equivalence class for this toroidal inductor category. The 2318-V-RC maintains 100% compatibility with circuit designs specified for the 2318-V.

Parameter Comparison

Engineering Selection Recommendations

The 2318-V-RC is the direct substitute for the obsolete 2318-V. Selection criteria are based on product lifecycle status and regulatory compliance:

Product Status: The 2318-V is classified as obsolete with limited inventory (723 pieces). The 2318-V-RC maintains active product status with substantially higher availability (2031 pieces), ensuring long-term supply chain continuity.

Regulatory Compliance: The 2318-V-RC achieves ROHS3 compliance, whereas the 2318-V is RoHS non-compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the 2318-V-RC is the required selection. Both parts maintain identical REACH and ECCN classifications.

Electrical and Mechanical Compatibility: All functional parameters are identical between the two parts. Circuit-level performance, thermal characteristics, and mechanical fit are equivalent. No design modifications are required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the 2318-V-RC be used as a direct replacement for the 2318-V in existing designs?

A: Yes. The 2318-V-RC is electrically and mechanically identical to the 2318-V. All inductance, current rating, DC resistance, core material, shielding, mounting type, package geometry, and operating temperature specifications match exactly. No circuit modifications are necessary.

Q: What is the primary difference between these two parts?

A: The 2318-V-RC is the active production variant with ROHS3 compliance, while the 2318-V is obsolete and RoHS non-compliant. Electrical performance is identical.

Q: Are there packaging differences between the 2318-V and 2318-V-RC?

A: The 2318-V is supplied in standard packaging, while the 2318-V-RC is supplied in bulk packaging. Both maintain identical component dimensions and through-hole mounting configuration. Bulk packaging does not affect component specifications or performance.

Q: Does the RoHS3 compliance of the 2318-V-RC affect circuit performance compared to the 2318-V?

A: No. RoHS3 compliance is a material composition and manufacturing standard that does not alter electrical characteristics, inductance value, current rating, DC resistance, or thermal performance. Functional behavior in the circuit remains identical.

Q: What is the inductance tolerance for both parts?

A: Both the 2318-V and 2318-V-RC have an inductance tolerance of ±15% at 1 kHz test frequency. This tolerance applies equally to both parts.

Q: Can these inductors be used in high-temperature applications?

A: Yes. Both parts are rated for operation across -55°C to 105°C. This temperature range supports industrial and automotive applications within these limits.

Q: Is the 2318-V-RC suitable for new product designs?

A: Yes. The 2318-V-RC is the appropriate selection for new designs. It offers active product status, improved compliance, and reliable long-term availability compared to the obsolete 2318-V.