YC122-JR-0727RL Equivalent & Substitute Parts

Part Overview

The YC122-JR-0727RL is a 2-resistor isolated network array manufactured by YAGEO, featuring 27 Ohm resistors with ±5% tolerance in a 0404 (1010 Metric) surface mount package. This component is actively produced and qualified to AEC-Q200 automotive standards. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings are maintained across the same package form factor.

Key Parameters

Parameter	Value
Resistance	27 Ohm
Tolerance	±5%
Number of Resistors	2
Circuit Type	Isolated
Power Per Element	62.5mW
Temperature Coefficient	±200ppm/°C
Number of Pins	4
Package / Case	0404 (1010 Metric), Convex
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the YC122-JR-0727RL is determined by strict equivalence across the following parameters:

Resistance value: 27 Ohm
Tolerance: ±5%
Circuit configuration: Isolated 2-resistor network
Power rating per element: 62.5mW
Temperature coefficient: ±200ppm/°C
Package form factor: 0404 (1010 Metric), Convex
Pin count: 4
Surface mount compatibility
RoHS3 compliance
MSL rating: 1 (Unlimited)

The EXB-24V270JX from Panasonic Electronic Components meets all specified electrical and mechanical criteria for direct substitution.

Parameter Comparison

Parameter	YC122-JR-0727RL (YAGEO)	EXB-24V270JX (Panasonic)
Resistance (Ohms)	27	27
Tolerance	±5%	±5%
Number of Resistors	2	2
Circuit Type	Isolated	Isolated
Power Per Element (mW)	62.5	62.5
Temperature Coefficient (ppm/°C)	±200	±200
Number of Pins	4	4
Package / Case	0404 (1010 Metric), Convex	0404 (1010 Metric), Convex
Mounting Type	Surface Mount	Surface Mount
Size / Dimension (mm)	1.00 x 1.00	1.00 x 1.00
Height - Seated (Max)	0.40mm	0.45mm
Operating Temperature Range	-55°C ~ 155°C	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the YC122-JR-0727RL and EXB-24V270JX are active production components with ROHS3 compliance and AEC-Q200 automotive qualification. The primary distinction is the maximum operating temperature: the YAGEO part supports -55°C to 155°C, while the Panasonic substitute operates to -55°C to 125°C. Selection should be based on the specific thermal requirements of the application. Both components are suitable for DDRAM and SDRAM applications where automotive-grade reliability is required.

Frequently Asked Questions (FAQ)

Q: Can the EXB-24V270JX replace the YC122-JR-0727RL in all applications?

A: Direct substitution is valid for applications operating within the -55°C to 125°C temperature range. Applications requiring operation above 125°C must retain the YAGEO part.

Q: Are the physical dimensions identical?

A: Both parts use the 0404 (1010 Metric) package with 1.00mm x 1.00mm footprint. The seated height differs by 0.05mm (YAGEO: 0.40mm maximum; Panasonic: 0.45mm maximum), which is negligible for standard PCB assembly.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the YC122-JR-0727RL and EXB-24V270JX carry AEC-Q200 qualification and are suitable for automotive applications.

Q: What is the significance of the isolated circuit configuration?

A: The isolated configuration means each resistor element operates independently with no internal connections between the two 27 Ohm resistors, allowing independent use in separate circuit branches.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. No compliance barriers exist for substitution.

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