4308R-102-182 Equivalent & Substitute Parts

Part Overview

The Bourns 4308R-102-182 is a 1.8k Ohm isolated 4-resistor network array in 8-SIP through-hole packaging. This component is designed for applications requiring matched resistor networks with controlled temperature coefficients and power dissipation per element. The part is currently active in production. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different compliance requirements across manufacturing environments.

Substiute Parts

4308R-102-182

Bourns Inc.In Stock: 7804308R-102-182 Datasheet

Current PartRFQ

4308R-102-182LF

Bourns Inc.In Stock: 27634308R-102-182LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 4308R-102-182 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match:

• Resistance value: 1.8k Ohm
• Tolerance: ±2%
• Number of resistors: 4
• Circuit type: Isolated
• Power per element: 300mW
• Temperature coefficient: ±100ppm/°C
• Resistor-ratio-drift: 50ppm/°C
• Operating temperature range: -55°C ~ 125°C
• Package: 8-SIP through-hole
• Physical dimensions and pin count

The 4308R-102-182LF meets all these criteria and is therefore a direct electrical and mechanical equivalent. The primary distinction between the main part and its substitute relates to RoHS compliance status and lead-free processing, not functional performance.

Parameter Comparison

Engineering Selection Recommendations

Both the 4308R-102-182 and 4308R-102-182LF are active production parts from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

The 4308R-102-182LF is ROHS3 compliant and is the appropriate choice for applications subject to RoHS directives or where lead-free processing is mandated by design standards or customer specifications. The 4308R-102-182 is RoHS non-compliant and suitable for applications without such restrictions. Both parts are REACH Affected and carry the same ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the 4308R-102-182LF be used as a direct replacement for the 4308R-102-182?

A: Yes. Both parts are electrically and mechanically identical. The LF variant incorporates lead-free processing and is ROHS3 compliant, while the non-LF variant is not. Substitution is valid provided compliance requirements are satisfied.

Q: What is the difference between the 4308R-102-182 and 4308R-102-182LF?

A: The primary difference is RoHS compliance status. The 4308R-102-182LF meets ROHS3 requirements and uses lead-free materials. All electrical parameters, package dimensions, pin configuration, and performance specifications are identical.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 8-SIP through-hole package with identical physical dimensions (0.784" L x 0.085" W, 19.91mm x 2.16mm) and maximum seated height of 0.195" (4.95mm). Pin count and configuration are identical.

Q: Which part should I specify for new designs?

A: Specify the 4308R-102-182LF for new designs unless legacy or non-compliant applications explicitly require the non-LF variant. The LF version provides ROHS3 compliance and is the current standard for modern manufacturing environments.

Q: Do these parts have the same temperature performance?

A: Yes. Both parts operate across -55°C to 125°C with identical temperature coefficients of ±100ppm/°C and resistor-ratio-drift of 50ppm/°C.