CAT10-300J4LF Equivalent & Substitute Parts

Part Overview

The CAT10-300J4LF is a 30 Ohm isolated 4-resistor network array manufactured by Bourns Inc. in 0804 surface mount package with ±5% tolerance and 62.5mW power per element. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

CAT10-300J4LF

Bourns Inc.In Stock: 994CAT10-300J4LF Datasheet

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EXB-N8V300JX

Panasonic Electronic ComponentsIn Stock: 2484EXB-N8V300JX Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAT10-300J4LF is determined by the following critical parameters:

• Resistance value: 30 Ohm (exact match required)
• Tolerance: ±5% (exact match required)
• Number of resistors: 4 (exact match required)
• Circuit type: Isolated (exact match required)
• Package / Case: 0804, Concave, Long Side Terminals (exact match required)
• Number of pins: 8 (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• Mounting type: Surface Mount (exact match required)

The EXB-N8V300JX meets all critical substitution criteria. Variations in power per element (62.5mW vs. 31mW) and temperature coefficient (±250ppm/°C vs. ±200ppm/°C) are within acceptable ranges for isolated resistor network applications where these parameters are not primary design constraints.

Parameter Comparison

Engineering Selection Recommendations

Both CAT10-300J4LF and EXB-N8V300JX are Active product status components with identical RoHS3 compliance and REACH unaffected status. The EXB-N8V300JX is electrically and mechanically compatible as a direct substitute. Selection between these parts should be based on availability, lead time, and cost considerations. The lower power per element specification of the EXB-N8V300JX (31mW vs. 62.5mW) does not affect substitution eligibility for standard isolated resistor network applications where thermal dissipation is not a limiting design factor.

Frequently Asked Questions (FAQ)

Q: Can EXB-N8V300JX replace CAT10-300J4LF in existing designs?

A: Yes. Both parts share identical resistance, tolerance, pin count, package configuration, and operating temperature range. PCB layout and footprint compatibility are assured due to matching 0804 package specifications with concave, long side terminals.

Q: What is the significance of the power per element difference?

A: The CAT10-300J4LF is rated at 62.5mW per element while the EXB-N8V300JX is rated at 31mW per element. This difference reflects manufacturer specifications but does not prevent substitution in applications where thermal management is not a primary constraint.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental compliance are equivalent.

Q: Does the temperature coefficient difference affect substitution?

A: The CAT10-300J4LF has ±250ppm/°C while the EXB-N8V300JX has ±200ppm/°C. The EXB-N8V300JX exhibits tighter temperature stability. This does not prevent substitution and may be advantageous in temperature-sensitive applications.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.079" L x 0.039" W (2.00mm x 1.00mm) with maximum seated height of 0.022" (0.55mm). Surface mount placement and reflow compatibility are identical.