CAT16-1003F8LF Equivalent & Substitute Parts

Part Overview

The CAT16-1003F8LF is an 8-resistor isolated network array manufactured by Bourns Inc., featuring 100k Ohm resistors with ±1% tolerance in a 2506 surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part delivers 62.5mW power per element across an operating temperature range of -55°C to 125°C with ±200ppm/°C temperature coefficient stability.

Substiute Parts

CAT16-1003F8LF

Bourns Inc.In Stock: 1146CAT16-1003F8LF Datasheet

Current PartRFQ

742C1631003FP

CTS Resistor ProductsIn Stock: 1070742C1631003FP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAT16-1003F8LF is determined by strict alignment across the following critical parameters:

• Resistance value: 100k Ohm
• Tolerance: ±1%
• Number of resistor elements: 8
• Circuit configuration: Isolated
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 125°C
• Package designation: 2506, Concave, Long Side Terminals
• Surface mount configuration with 16-pin count

The substitute part 742C1631003FP from CTS Resistor Products meets all mandatory substitution criteria. While the power per element specification differs marginally (63mW versus 62.5mW), this variance remains within acceptable engineering tolerance for isolated resistor network applications and does not compromise functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The 742C1631003FP from CTS Resistor Products is the qualified substitute for the obsolete CAT16-1003F8LF. Both components maintain ROHS3 compliance and identical moisture sensitivity classification (MSL 1). The substitute part carries active product status, ensuring continued availability and manufacturing support. The marginal difference in maximum seated height (0.028" versus 0.030") and power per element specification (63mW versus 62.5mW) does not impact functional compatibility in isolated resistor network applications. Pin count, package footprint, and electrical specifications remain fully aligned.

Frequently Asked Questions (FAQ)

Q: Can the 742C1631003FP directly replace the CAT16-1003F8LF in existing designs?

A: Yes. Both components share identical resistance value, tolerance, circuit configuration, temperature coefficient, operating temperature range, package type, and pin count. The substitute meets all functional requirements for isolated 8-resistor network applications.

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

A: The 0.5mW variance represents a 0.8% increase in power dissipation capability. This marginal difference does not affect circuit performance or thermal management in standard applications utilizing isolated resistor networks.

Q: Are there any PCB layout considerations when switching from CAT16-1003F8LF to 742C1631003FP?

A: No layout modifications are required. Both components use identical 2506 package geometry with 0.252" length and 0.063" width. The seated height difference (0.030" to 0.028") is negligible for standard surface mount assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CAT16-1003F8LF and 742C1631003FP are ROHS3 compliant, REACH unaffected, and classified under identical ECCN and HTSUS codes.

Q: Why is the substitute part listed as active while the original is obsolete?

A: The CAT16-1003F8LF has reached end-of-life status. The 742C1631003FP from CTS Resistor Products remains in active production, providing long-term supply continuity for equivalent functionality.