CAY16-331J8LF Equivalent & Substitute Parts

Part Overview

The CAY16-331J8LF is an 8-resistor isolated network array manufactured by Bourns Inc., featuring 330 Ohm resistors with ±5% tolerance in a 1506 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 across isolated circuits with ±200ppm/°C temperature stability, suitable for applications requiring precision resistor networks in compact form factors.

Key Parameters

Parameter	Value
Resistance	330 Ohm
Tolerance	±5%
Number of Resistors	8
Circuit Type	Isolated
Power Per Element	62.5mW
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 125°C
Number of Pins	16
Package Type	1506, Convex, Long Side Terminals
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CAY16-331J8LF is determined by strict alignment across the following parameters: resistance value (330 Ohm), tolerance (±5%), number of resistors (8), circuit type (isolated), temperature coefficient (±200ppm/°C), operating temperature range (-55°C to 125°C), pin count (16), and package configuration (1506 with convex, long side terminals). Power per element specifications must remain within the original 62.5mW rating or higher to ensure circuit compatibility. All substitute parts must maintain ROHS3 compliance and MSL 1 rating.

Two substitute parts meet these criteria:

Direct Substitute: EXB-2HV331JV (Panasonic Electronic Components) — Active product status with identical electrical specifications and package dimensions.

Similar Substitute: 741X163331JP (CTS Resistor Products) — Active product status with equivalent electrical specifications; minor dimensional variance in length (3.95mm vs. 3.80mm) and marginally higher power rating (63mW vs. 62.5mW).

Parameter Comparison

Parameter	CAY16-331J8LF (Bourns)	EXB-2HV331JV (Panasonic)	741X163331JP (CTS)
Resistance (Ohm)	330	330	330
Tolerance	±5%	±5%	±5%
Number of Resistors	8	8	8
Circuit Type	Isolated	Isolated	Isolated
Power Per Element (mW)	62.5	62.5	63
Temperature Coefficient (ppm/°C)	±200	±200	±200
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Number of Pins	16	16	16
Package / Case	1506, Convex, Long Side Terminals	1506, Convex, Long Side Terminals	1506, Convex, Long Side Terminals
Size / Dimension (mm)	3.80 x 1.60	3.80 x 1.60	3.95 x 1.60
Height - Seated Max (mm)	0.60	0.55	0.55
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

EXB-2HV331JV is the primary substitute for CAY16-331J8LF. This Panasonic component maintains active product status, ensuring long-term availability and supply chain stability. Electrical specifications are identical across all critical parameters. Package dimensions match exactly (3.80 x 1.60mm), and seated height is marginally lower (0.55mm vs. 0.60mm), presenting no compatibility concerns for standard PCB layouts. ROHS3 compliance and MSL 1 rating align with the original part. Automotive AEC-Q200 qualification provides additional reliability assurance for demanding applications.

741X163331JP serves as a secondary substitute when EXB-2HV331JV availability is constrained. CTS Resistor Products maintains active status with equivalent electrical performance. Length dimension increases by 0.15mm (3.95mm vs. 3.80mm), requiring verification against PCB layout constraints in space-critical designs. Power per element rating is marginally higher (63mW vs. 62.5mW), providing additional thermal margin. Automotive AEC-Q200 qualification and DRAM/DDR SDRAM application history support use in memory interface circuits. ROHS3 compliance and MSL 1 rating match original specifications.

Frequently Asked Questions (FAQ)

Q: Can EXB-2HV331JV replace CAY16-331J8LF in existing designs without PCB modification?

A: Yes. Electrical specifications are identical, and package dimensions match exactly. The seated height is 0.05mm lower, which presents no compatibility issues for standard surface mount assembly processes.

Q: What is the primary reason for substituting CAY16-331J8LF?

A: The original part is classified as obsolete. EXB-2HV331JV and 741X163331JP are active products with confirmed long-term availability.

Q: Does 741X163331JP require PCB layout changes?

A: The length dimension is 0.15mm longer (3.95mm vs. 3.80mm). Verify this dimension against your PCB footprint and component placement constraints. If space is limited, EXB-2HV331JV is preferred.

Q: Are both substitutes qualified for automotive applications?

A: Yes. Both EXB-2HV331JV and 741X163331JP carry Automotive AEC-Q200 qualification, meeting automotive reliability standards.

Q: What is the impact of the 0.5mW power difference in 741X163331JP?

A: The CTS part rates 63mW per element versus 62.5mW for the original. This represents a 0.8% increase and provides additional thermal margin. No circuit redesign is required.

Q: Are moisture sensitivity levels equivalent across all three parts?

A: Yes. All three parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these parts be used interchangeably in production?

A: EXB-2HV331JV is a direct substitute with no design considerations. 741X163331JP requires verification of the 0.15mm length increase against PCB layout. Both maintain identical electrical performance and compliance certifications.

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