CAY10-104J2LF Equivalent & Substitute Parts

Part Overview

The CAY10-104J2LF is a 100k Ohm isolated 2-resistor network array manufactured by Bourns Inc. in 0404 (1010 Metric) surface mount package. This component is actively produced and widely used in applications requiring matched resistor pairs with controlled tolerance and temperature stability. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and compliance certifications align with the original design requirements.

Substiute Parts

CAY10-104J2LF
Bourns Inc.In Stock: 1198CAY10-104J2LF Datasheet
CAY10-104J2LF
Current Part
EXB-24V104JX
Panasonic Electronic ComponentsIn Stock: 58461EXB-24V104JX Datasheet
EXB-24V104JX
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Key Parameters

Parameter Value
Resistance 100k Ohm
Tolerance ±5%
Number of Resistors 2
Circuit Type Isolated
Power Per Element 62.5mW
Package / Case 0404 (1010 Metric), Convex
Number of Pins 4
Operating Temperature Range -55°C ~ 125°C
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CAY10-104J2LF is determined by strict equivalence across the following parameters:

  • Resistance value: 100k Ohm
  • Tolerance: ±5%
  • Circuit configuration: Isolated 2-resistor network
  • Power rating per element: 62.5mW minimum
  • Package type: 0404 (1010 Metric), Convex
  • Pin count: 4
  • Operating temperature range: -55°C ~ 125°C minimum
  • Compliance: ROHS3, REACH Unaffected

The EXB-24V104JX from Panasonic Electronic Components meets all mandatory electrical and mechanical requirements for direct substitution. Temperature coefficient variation (±200ppm/°C vs. ±250ppm/°C) falls within acceptable design margins for isolated resistor networks and does not restrict substitution eligibility.

Parameter Comparison

Parameter CAY10-104J2LF (Bourns) EXB-24V104JX (Panasonic)
Resistance (Ohms) 100k 100k
Tolerance ±5% ±5%
Number of Resistors 2 2
Circuit Type Isolated Isolated
Power Per Element 62.5mW 62.5mW
Temperature Coefficient ±250ppm/°C ±200ppm/°C
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C
Number of Pins 4 4
Package / Case 0404 (1010 Metric), Convex 0404 (1010 Metric), Convex
Mounting Type Surface Mount Surface Mount
Size / Dimension 0.039" L x 0.039" W (1.00mm x 1.00mm) 0.039" L x 0.039" W (1.00mm x 1.00mm)
Height - Seated (Max) 0.018" (0.45mm) 0.018" (0.45mm)
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

The EXB-24V104JX qualifies as a direct substitute for the CAY10-104J2LF based on electrical equivalence and mechanical compatibility. Both components are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for current production applications. The Panasonic EXB-24V104JX carries AEC-Q200 automotive qualification, which provides additional reliability assurance for applications requiring automotive-grade components. Selection between the two parts should be based on supply chain availability, cost considerations, and specific application requirements rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the EXB-24V104JX replace the CAY10-104J2LF in existing designs?

A: Yes. Both components share identical resistance value, tolerance, power rating, package dimensions, pin configuration, and operating temperature range. Direct substitution is electrically and mechanically compatible.

Q: What is the significance of the temperature coefficient difference (±250ppm/°C vs. ±200ppm/°C)?

A: The EXB-24V104JX exhibits tighter temperature stability. This represents an improvement over the original specification and does not restrict substitution. Applications sensitive to temperature drift benefit from the lower coefficient.

Q: Are both parts suitable for automotive applications?

A: The EXB-24V104JX carries AEC-Q200 automotive qualification. The CAY10-104J2LF does not list automotive qualification in the provided specifications. For automotive designs, the Panasonic part is the preferred choice.

Q: Do package dimensions differ between these parts?

A: No. Both components use identical 0404 (1010 Metric) convex package with 0.039" x 0.039" footprint and 0.018" maximum seated height. PCB layout and assembly processes require no modification.

Q: What is the moisture sensitivity level for both parts?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply.

Q: Are there supply or availability differences?

A: The Panasonic EXB-24V104JX shows higher inventory availability (58,404 pcs) compared to the Bourns CAY10-104J2LF (1,178 pcs) in the provided data. Supply chain considerations may influence part selection.

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