VCAS120626F540RP Equivalent & Substitute Parts

Part Overview

The VCAS120626F540RP is a 33 V, 200 A Transient Voltage Suppressor (TVS) varistor manufactured by KYOCERA AVX in the MLCV 1206 (3216 Metric) surface-mount package. This component operates within the -55°C to 125°C temperature range and is qualified to AEC-Q200 automotive standards. The part is actively produced and maintains a ROHS3 compliant status with MSL Level 1 (unlimited moisture sensitivity).

Equivalent and substitute parts are identified when components share identical electrical specifications, mechanical compatibility, and regulatory compliance. This reference addresses applications requiring direct replacement capability while maintaining system performance and reliability standards.

Key Parameters

Parameter	Value	Unit
Varistor Voltage (Typical)	33	V
Varistor Voltage Range	29.7 – 36.3	V
Maximum AC Voltage	18	V
Maximum DC Voltage	26	V
Current – Surge	200	A
Energy Absorption	0.7	J
Number of Circuits	1	–
Capacitance @ 1 kHz	600	pF
Operating Temperature Range	-55 to 125	°C
Mounting Type	Surface Mount, MLCV	–
Package	1206 (3216 Metric)	–
RoHS Status	ROHS3 Compliant	–
Qualification	AEC-Q200	–

Substitute Part Grouping Explanation

Substitution eligibility for transient voltage suppressor varistors is determined by strict adherence to electrical and mechanical parameters. The VCAS120626F540RP admits two parametric equivalents:

Substitution Criteria:

Varistor voltage range: 29.7 V – 36.3 V (typical 33 V)
Maximum AC voltage: 18 V
Maximum DC voltage: 26 V
Surge current capacity: 200 A
Energy absorption: 0.7 J
Capacitance @ 1 kHz: 600 pF
Operating temperature: -55°C to 125°C
Package: MLCV 1206 (3216 Metric)
Mounting: Surface Mount
RoHS compliance: ROHS3
MSL rating: Level 1 (Unlimited)

Both substitute parts—VCAS120626F540DP and VCAS120626F540DZ—meet all specified electrical and mechanical parameters. They are manufactured by KYOCERA AVX and maintain identical packaging, thermal characteristics, and regulatory compliance to the main part number.

Parameter Comparison

Parameter	VCAS120626F540RP	VCAS120626F540DP	VCAS120626F540DZ
Varistor Voltage (Typ)	33 V	33 V	33 V
Varistor Voltage Range	29.7 – 36.3 V	29.7 – 36.3 V	29.7 – 36.3 V
Maximum AC Volts	18 V	18 V	18 V
Maximum DC Volts	26 V	26 V	26 V
Current – Surge	200 A	200 A	200 A
Energy	0.7 J	0.7 J	0.7 J
Number of Circuits	1	1	1
Capacitance @ 1 kHz	600 pF	600 pF	600 pF
Operating Temperature	-55 to 125°C	-55 to 125°C	-55 to 125°C
Mounting Type	Surface Mount, MLCV	Surface Mount, MLCV	Surface Mount, MLCV
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	AEC-Q200	Not specified	AEC-Q200
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both VCAS120626F540DP and VCAS120626F540DZ are parametric equivalents to the VCAS120626F540RP and are suitable for direct replacement in applications where the specified electrical and mechanical parameters are required.

VCAS120626F540RP: Active product status with AEC-Q200 qualification and ROHS3 compliance. Inventory: 775 pcs.

VCAS120626F540DP: Active product status with ROHS3 compliance. Inventory: 1729 pcs. AEC-Q200 qualification is not specified for this variant.

VCAS120626F540DZ: Active product status with AEC-Q200 qualification and ROHS3 compliance. Inventory: 4753 pcs. Belongs to the FLEXITERM® series designation.

Selection among these three parts should be based on procurement availability, inventory levels, and specific qualification requirements of the end application. All three parts are manufactured by KYOCERA AVX and maintain identical electrical specifications and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can VCAS120626F540DP be used as a direct replacement for VCAS120626F540RP?

A: The two parts are parametric equivalents with identical electrical specifications, operating temperature range, surge current capacity, energy absorption, and package form factor. Direct substitution is valid from an electrical standpoint. However, AEC-Q200 qualification is not specified for VCAS120626F540DP, which may affect suitability for automotive applications requiring explicit qualification documentation.

Q: What is the difference between VCAS120626F540RP and VCAS120626F540DZ?

A: Both parts share identical electrical parameters, operating characteristics, and mechanical specifications. Both are AEC-Q200 qualified and ROHS3 compliant. The VCAS120626F540DZ is designated within the FLEXITERM® product series and has higher available inventory (4753 pcs vs. 775 pcs).

Q: Are all three parts in the same physical package?

A: Yes. All three parts use the MLCV 1206 (3216 Metric) surface-mount package with identical mechanical specifications, allowing direct PCB layout compatibility without design modification.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching varistor voltage (29.7–36.3 V), maximum AC/DC voltage ratings (18 V AC / 26 V DC), surge current capacity (200 A), energy absorption (0.7 J), and capacitance (600 pF @ 1 kHz). All three parts meet these specifications.

Q: Which part number should be selected for new automotive designs?

A: For new automotive designs requiring AEC-Q200 qualification, both VCAS120626F540RP and VCAS120626F540DZ are qualified options. Selection should be based on procurement lead times and inventory availability from the supplier.

Q: Is moisture sensitivity a concern when selecting among these parts?

A: All three parts have an MSL rating of Level 1 (Unlimited), indicating no moisture sensitivity limitation. Standard PCB storage and handling practices apply equally to all three variants.

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