Equivalent & Substitute Parts for Bourns 4308R-102-472

Part Overview

The Bourns 4308R-102-472 is a 4.7k Ohm isolated resistor network array in 8-SIP package configuration, designed for through-hole mounting applications. This component features four independent 4.7k Ohm resistors with ±2% tolerance and 300mW power per element rating. The part is currently active in production and widely used in analog signal conditioning, impedance matching, and pull-up/pull-down network applications. Identifying equivalent substitute parts is essential for supply chain continuity, inventory optimization, and compliance with evolving regulatory requirements such as RoHS standards.

Substiute Parts

4308R-102-472

Bourns Inc.In Stock: 7714308R-102-472 Datasheet

Current PartRFQ

4308R-102-472LF

Bourns Inc.In Stock: 31084308R-102-472LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4308R-102-472 is determined by strict equivalence across the following critical parameters:

• Resistance value: 4.7k Ohm
• Tolerance: ±2%
• Number of resistor elements: 4
• Circuit configuration: Isolated
• Power rating per element: 300mW
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 125°C
• Package designation: 8-SIP
• Mounting technology: Through Hole
• Pin count: 8
• Physical footprint: 0.784" L × 0.085" W

The 4308R-102-472LF qualifies as a direct substitute because it maintains identical electrical specifications, mechanical dimensions, and functional characteristics. The primary distinction lies in RoHS compliance status and lead-free termination processing, which do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The 4308R-102-472LF is a fully qualified direct substitute for the 4308R-102-472. Both parts are manufactured by Bourns Inc. and maintain identical electrical and mechanical specifications across all critical parameters.

Selection between these two parts should be based on regulatory and compliance requirements:

• Use 4308R-102-472LF for applications requiring ROHS3 compliance or lead-free termination processing
• Use 4308R-102-472 where RoHS non-compliant components are acceptable and legacy specifications are maintained

Both parts are REACH Affected and classified under ECCN EAR99. Inventory availability should also be considered: the 4308R-102-472LF currently has higher stock levels (3091 Pcs) compared to the 4308R-102-472 (707 Pcs).

Frequently Asked Questions (FAQ)

Q: Can the 4308R-102-472LF be used as a direct replacement for the 4308R-102-472 in existing designs?

A: Yes. The 4308R-102-472LF is electrically and mechanically identical to the 4308R-102-472. All resistance values, tolerances, power ratings, temperature coefficients, and physical dimensions are equivalent. The primary difference is RoHS compliance status and lead-free termination, which do not affect functional interchangeability.

Q: What is the significance of the "LF" suffix in the part number 4308R-102-472LF?

A: The "LF" designation indicates lead-free termination processing and ROHS3 compliance. This affects manufacturing and environmental compliance but does not alter electrical performance or mechanical fit.

Q: Are there any thermal or electrical performance differences between these two parts?

A: No. Both parts operate across the identical temperature range (-55°C to 125°C), maintain the same temperature coefficient (±100ppm/°C), and deliver 300mW power per element. Thermal and electrical characteristics are equivalent.

Q: Will the 4308R-102-472LF fit the same PCB footprint as the 4308R-102-472?

A: Yes. Both parts use the 8-SIP package with identical physical dimensions (0.784" L × 0.085" W) and maximum seated height (0.195"). PCB layout and mounting hole spacing are fully compatible.

Q: Which part should be selected for new product designs?

A: For new designs, the 4308R-102-472LF is recommended due to ROHS3 compliance and higher current inventory availability. This ensures regulatory alignment and supply chain continuity.