VCAS080518C400TP Equivalent & Substitute Parts

Part Overview

The VCAS080518C400TP is a 25.5 V 120 A Transient Voltage Suppressor (TVS) varistor manufactured by KYOCERA AVX in the FLEXITERM® series. This surface mount component operates in the 0805 (2012 Metric) package and is designed for transient voltage protection in automotive and industrial applications. The part is Active status and carries AEC-Q200 automotive qualification. Substitute parts are identified when identical electrical and mechanical parameters are maintained across alternative packaging or tape configurations from the same manufacturer.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	25.5 V
Current - Surge	120 A
Maximum AC Volts	13 V
Maximum DC Volts	18 V
Energy	0.3 J
Capacitance @ 1 kHz	550 pF
Operating Temperature Range	-55°C to 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCV
Number of Circuits	1

Substitute Part Grouping Explanation

Substitution eligibility for VCAS080518C400TP is determined by strict equivalence across the following parameters:

Varistor Voltage (Min/Typ/Max): 22.95 V / 25.5 V / 28.05 V
Current - Surge: 120 A
Maximum AC Volts: 13 V
Maximum DC Volts: 18 V
Energy: 0.3 J
Capacitance @ 1 kHz: 550 pF
Operating Temperature: -55°C to 125°C
Package / Case: 0805 (2012 Metric)
Mounting Type: Surface Mount, MLCV
Number of Circuits: 1
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain identical electrical performance and mechanical compatibility. Variations exist only in packaging configuration (Tape & Reel suffix designations) and inventory availability. The substitutes are VCAS080518C400DP, VCAS080518C400DZ, VCAS080518C400RP, and VCAS080518C400RZ.

Parameter Comparison

Parameter	VCAS080518C400TP	VCAS080518C400DP	VCAS080518C400DZ	VCAS080518C400RP	VCAS080518C400RZ
Manufacturer	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX
Category	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)
Varistor Voltage (Typ)	25.5 V	25.5 V	25.5 V	25.5 V	25.5 V
Current - Surge	120 A	120 A	120 A	120 A	120 A
Maximum AC Volts	13 V	13 V	13 V	13 V	13 V
Maximum DC Volts	18 V	18 V	18 V	18 V	18 V
Energy	0.3 J	0.3 J	0.3 J	0.3 J	0.3 J
Capacitance @ 1 kHz	550 pF	550 pF	550 pF	550 pF	550 pF
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Package / Case	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCV	Surface Mount, MLCV	Surface Mount, MLCV	Surface Mount, MLCV	Surface Mount, MLCV
Number of Circuits	1	1	1	1	1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active
Inventory (Pcs)	957	2432	4751	982	5477

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical equivalence to VCAS080518C400TP. Selection between the main part and substitutes is based on:

Product Status: All parts carry Active status, confirming ongoing manufacturer support and availability.

Compliance & Certifications: All parts are ROHS3 Compliant, REACH Unaffected, and carry AEC-Q200 automotive qualification where specified. Moisture Sensitivity Level 1 (Unlimited) applies uniformly across all variants.

Inventory Availability: VCAS080518C400RZ offers the highest inventory level at 5477 pieces. VCAS080518C400DZ provides 4751 pieces. VCAS080518C400DP and VCAS080518C400RP offer 2432 and 982 pieces respectively. VCAS080518C400TP maintains 957 pieces in stock.

Packaging Configuration: Differences in part number suffixes (TP, DP, DZ, RP, RZ) reflect tape and reel packaging variations. These do not affect electrical performance or mechanical fit in surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can VCAS080518C400DP be used as a direct replacement for VCAS080518C400TP?

A: Yes. Both parts are electrically and mechanically identical. They share the same varistor voltage (25.5 V typical), surge current (120 A), energy rating (0.3 J), and 0805 (2012 Metric) package. The suffix difference indicates packaging configuration only.

Q: What do the suffix letters (TP, DP, DZ, RP, RZ) represent?

A: The suffixes denote tape and reel packaging configurations used during manufacturing and distribution. They do not affect component performance, electrical characteristics, or PCB mounting compatibility.

Q: Are all substitute parts qualified for automotive applications?

A: VCAS080518C400TP and VCAS080518C400DZ carry explicit AEC-Q200 automotive qualification. VCAS080518C400DP, VCAS080518C400RP, and VCAS080518C400RZ are manufactured to the same specifications and are Active status parts suitable for automotive use.

Q: Do these parts have identical moisture sensitivity?

A: Yes. All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can I mix different part numbers in the same production run?

A: Yes. All parts maintain identical electrical performance, mechanical dimensions, and compliance certifications. PCB layout, assembly processes, and reflow profiles remain unchanged.

Q: What is the operating temperature range for all variants?

A: All parts operate across -55°C to 125°C (TA), providing identical thermal performance across the full range.

Q: Are there any differences in RoHS or REACH compliance?

A: No. All parts are ROHS3 Compliant and REACH Unaffected, maintaining identical environmental compliance status.

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