CAT16-331J8LF Equivalent & Substitute Parts

Part Overview

The CAT16-331J8LF is an 8-resistor isolated network array manufactured by Bourns Inc., featuring 330 Ohm resistors with ±5% tolerance in a 2506 surface mount package. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part delivers 62.5mW power per element and operates across the -55°C to 125°C temperature range with ±200ppm/°C temperature coefficient stability.

Substiute Parts

CAT16-331J8LF

Bourns Inc.In Stock: 968CAT16-331J8LF Datasheet

Current PartRFQ

742C163331JP

CTS Resistor ProductsIn Stock: 102809742C163331JP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 742C163331JP from CTS Resistor Products qualifies as a direct substitute based on the following critical parameters:

• Identical resistance value: 330 Ohm
• Matching tolerance: ±5%
• Same circuit configuration: Isolated 8-resistor array
• Identical pin count: 16
• Matching package: 2506, Concave, Long Side Terminals
• Identical temperature coefficient: ±200ppm/°C
• Overlapping operating temperature range: -55°C to 125°C
• Equivalent RoHS3 compliance and MSL rating

The substitute maintains functional and mechanical compatibility with the original part. Minor variations in power per element (63mW vs 62.5mW) and seated height (0.028" vs 0.030") fall within acceptable engineering tolerances for this component category and do not affect substitutability.

Parameter Comparison

Engineering Selection Recommendations

The 742C163331JP is the qualified substitute for the obsolete CAT16-331J8LF. Selection is based on:

• Active product status with confirmed inventory availability (102,768 pcs in stock)
• Full compliance with ROHS3 and REACH requirements matching the original part
• Identical electrical specifications across all critical parameters
• Mechanical compatibility with existing PCB layouts and assembly processes
• Equivalent reliability ratings and environmental classifications

The substitute part is suitable for direct replacement in applications requiring 330 Ohm isolated resistor arrays in 2506 surface mount packages.

Frequently Asked Questions (FAQ)

Q: Can the 742C163331JP replace the CAT16-331J8LF in existing designs?

A: Yes. Both parts share identical resistance values, tolerances, pin configurations, package dimensions, and temperature coefficients. The 2506 package footprint and 16-pin isolated array configuration are mechanically and electrically compatible.

Q: What is the significance of the power per element difference (62.5mW vs 63mW)?

A: The 0.5mW difference represents a 0.8% variation and falls within normal manufacturing tolerances for this component category. This minor difference does not affect circuit performance or thermal management in standard applications.

Q: Are there packaging differences between these parts?

A: The CAT16-331J8LF is supplied in standard packaging, while the 742C163331JP is available in Tape & Reel (TR) format. Both use identical 2506 package geometry with negligible height variation (0.030" vs 0.028"), which does not impact PCB assembly or clearance requirements.

Q: Why is the original part obsolete?

A: The CAT16-331J8LF has been discontinued by Bourns Inc. The 742C163331JP from CTS Resistor Products remains in active production and provides equivalent functionality for new designs and legacy system maintenance.

Q: Are compliance certifications equivalent?

A: Yes. Both parts carry ROHS3 compliance, REACH unaffected status, and identical Moisture Sensitivity Level 1 ratings, ensuring equivalent environmental and regulatory compliance.