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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division 3.0C75CA-M3/H

Name: 3.0C75CA-M3/H
Brand: Vishay General Semiconductor - Diodes Division
SKU: 3.0C75CA-M3/H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 3.0C75CA-M3/H

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-214AB, SMC

Datasheet:: 3.0C75CA-M3/H.pdf

Description:: 3KW, 75V 5%,BIDIR,SMC TVS

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Product details

Overview

3.0C75CA-M3 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection with 3000 W peak pulse power (10/1000 μs), 121 V maximum clamping voltage at 24.8 A, and 75 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.

For engineers reviewing the 3.0C75CA-M3 datasheet, 3.0C75CA-M3 pinout, 3.0C75CA-M3 application, or 3.0C75CA-M3 equivalent, key selection criteria include bidirectional clamping capability, 175 °C junction temperature rating, MSL Level 1 moisture sensitivity, and compliance with IEC 61000-4-2 (30 kV ESD).

Technical Context

This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients induced by inductive switching or lightning surges. Its bidirectional architecture enables symmetrical clamping across both polarities without polarity marking, and its low incremental surge resistance ensures minimal voltage overshoot during high-current events.

The device meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards, with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Thermal resistance is 90 °C/W (junction-to-ambient) and 4.0 °C/W (junction-to-mount), supporting robust thermal management on FR4 PCBs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	75 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range.
V_BR (min/max)	83.3 V / 92.1 V - Breakdown voltage range at 1 mA test current; ensures reliable turn-on margin above V_WM.
V_C @ I_PPM	121 V - Clamping voltage at 24.8 A peak pulse current (10/1000 μs); determines protected circuit's maximum transient exposure.
P_PPM	3000 W - Peak pulse power handling (10/1000 μs); supports high-energy surge suppression in power supply inputs and data lines.
T_J max	+175 °C - Maximum junction temperature; enables operation in harsh environments including industrial motor drives and outdoor telecom equipment.
ESD Rating	30 kV - Human body model (HBM) contact and air discharge per IEC 61000-4-2; provides robust electrostatic immunity without external shielding.

Pinout & Package

Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, 260 °C reflow peak.

Pin/Terminal	Circuit Role	Design Meaning
Cathode (marked end)	Clamping node (bidirectional)	No functional polarity marking on bidirectional types; terminals are interchangeable for AC or dual-rail protection.
Anode	Clamping node (bidirectional)	Same terminal function as cathode; symmetric conduction enables placement without orientation constraints.

Key Features

Feature	Design Value
Bidirectional clamping	Enables single-device protection of AC lines or differential signal pairs without polarity concerns.
30 kW surge rating (8/20 μs)	Supports high-current lightning surge immunity per IEC 61000-4-5 in telecom and industrial infrastructure.
Low incremental surge resistance	Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for downstream ICs.
MSL Level 1 rating	Allows unlimited floor life and standard reflow without baking, reducing manufacturing complexity and cost.

Applications

Industrial Motor Drives	Telecom Power Supplies
Use Scenario: Protection of gate drivers and bus voltage sensing circuits against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Shunt TVS device clamping transient spikes to ≤121 V during fault conditions. Use Value: Prevents gate oxide damage and false triggering in high-voltage motor control stages operating up to 75 V nominal.	Use Scenario: Input-stage surge suppression on -48 V DC telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response voltage clamp limiting transient excursions to safe levels for downstream DC/DC converters. Use Value: Maintains system uptime by surviving 3000 W (10/1000 μs) surges without degradation, per IEC 61000-4-5.
Automotive Body Control Modules	Industrial Sensor Signal Conditioning
Use Scenario: CAN/LIN bus line protection in 12 V vehicle subsystems subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed across differential bus lines. Use Value: Withstands 30 kV HBM ESD and 8/20 μs surges up to 157 V clamping, preserving communication integrity.	Use Scenario: Protection of analog front-end inputs (e.g., 4–20 mA loops, RTD bridges) from ESD and field wiring transients. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA at 75 V) shunt clamp on precision signal paths. Use Value: Ensures measurement accuracy remains unaffected during normal operation while reacting in <1 ns to transients.

Industrial Motor Drives

Telecom Power Supplies

Use Scenario: Protection of gate drivers and bus voltage sensing circuits against inductive kickback from IGBT/MOSFET switching.

IC Role / Device Role / Timing Role: Shunt TVS device clamping transient spikes to ≤121 V during fault conditions.

Use Value: Prevents gate oxide damage and false triggering in high-voltage motor control stages operating up to 75 V nominal.

Use Scenario: Input-stage surge suppression on -48 V DC telecom rectifier outputs exposed to lightning-induced surges.

IC Role / Device Role / Timing Role: Fast-response voltage clamp limiting transient excursions to safe levels for downstream DC/DC converters.

Use Value: Maintains system uptime by surviving 3000 W (10/1000 μs) surges without degradation, per IEC 61000-4-5.

Automotive Body Control Modules

Industrial Sensor Signal Conditioning

Use Scenario: CAN/LIN bus line protection in 12 V vehicle subsystems subject to load dump and ISO 7637-2 pulses.

IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed across differential bus lines.

Use Value: Withstands 30 kV HBM ESD and 8/20 μs surges up to 157 V clamping, preserving communication integrity.

Use Scenario: Protection of analog front-end inputs (e.g., 4–20 mA loops, RTD bridges) from ESD and field wiring transients.

IC Role / Device Role / Timing Role: Low-leakage (≤1 μA at 75 V) shunt clamp on precision signal paths.

Use Value: Ensures measurement accuracy remains unaffected during normal operation while reacting in <1 ns to transients.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ75CA	Lower peak pulse power (600 W vs. 3000 W); same SMC package and 75 V V_WM.	Suitable only for lower-energy transients (e.g., board-level ESD), not lightning or inductive switching.	Select when cost sensitivity outweighs surge energy requirements and system-level testing confirms 600 W sufficiency.
SMCJ75CA	Identical 3000 W rating and 121 V clamping, but rated for 150 °C T_J max (vs. 175 °C for 3.0C75CA-M3).	Less suitable for extended high-temperature operation in enclosed enclosures or near heat sources.	Prefer 3.0C75CA-M3 where ambient temperatures exceed 125 °C or long-term reliability at 175 °C is required.

Compared with SMBJ75CA and SMCJ75CA, the 3.0C75CA-M3 delivers superior thermal endurance (175 °C T_J max) and identical high-energy clamping performance, making it optimal for mission-critical industrial and telecom surge protection where sustained thermal stress and 3000 W transient immunity are mandatory.

Availability

3.0C75CA-M3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and full traceability.

Supply support for 3.0C75CA-M3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and ruggedness.

The 3.0C75CA-M3 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for demanding surge protection in industrial, telecom, and automotive power and signal interfaces.

FAQ

What is the clamping voltage of the 3.0C75CA-M3 under a 10/1000 μs surge?

The 3.0C75CA-M3 has a maximum clamping voltage (V_C) of 121 V at 24.8 A peak pulse current (I_PPM) under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The 3.0C75CA-M3 maintains this clamping performance across its full operating temperature range.

Is the 3.0C75CA-M3 unidirectional or bidirectional?

The 3.0C75CA-M3 is a bidirectional Transient Voltage Suppressor, meaning it provides symmetrical clamping for both positive and negative voltage transients. Its datasheet specifies no polarity marking, and electrical characteristics (V_BR, V_C) apply identically in either direction - a key requirement for AC line protection and differential bus interfaces like CAN or RS-485.

What package does the 3.0C75CA-M3 use, and is it RoHS-compliant?

The 3.0C75CA-M3 uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads. It is halogen-free, RoHS-compliant, and qualified to MSL Level 1 per J-STD-020, allowing unlimited floor life and standard 260 °C reflow without preconditioning. The molding compound meets UL 94 V-0 flammability rating.

Does the 3.0C75CA-M3 meet IEC 61000-4-2 ESD requirements?

Yes, the 3.0C75CA-M3 is rated for 30 kV human body model (HBM) ESD per IEC 61000-4-2 in both contact and air discharge modes. This level of ESD immunity is validated per the manufacturer's test conditions (C = 150 pF, R = 330 Ω) and makes the 3.0C75CA-M3 suitable for protecting sensitive interfaces in consumer, industrial, and telecom equipment without additional ESD staging.

What is the maximum junction temperature rating for the 3.0C75CA-M3?

The 3.0C75CA-M3 has a maximum junction temperature (T_J) rating of +175 °C, exceeding the 150 °C typical limit of many competing TVS diodes. This higher thermal rating allows reliable operation in high-ambient environments such as enclosed industrial controllers or base station power supplies, and supports longer lifetime under repeated surge stress.

3.0C75CA-M3/H Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-214AB, SMC

Series:: TransZorb®

Packaging:: Bulk

Product Status:: Active

Type:: Zener

Unidirectional Channels:: -

Bidirectional Channels:: 1

Voltage - Reverse Standoff (Typ):: 75V

Voltage - Breakdown (Min):: 83.3V

Voltage - Clamping (Max) @ Ipp:: 121V

Current - Peak Pulse (10/1000µs):: 24.8A

Power - Peak Pulse:: 3000W (3kW)

Power Line Protection:: No

Applications:: Telecom

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: Automotive

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

3.0C75CA-M3/H FAQ

1.How can I place an order for 3.0C75CA-M3/H through Aetrix?

Please submit a Request for Quotation (RFQ) for 3.0C75CA-M3/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 3.0C75CA-M3/H reliable?

The price and inventory of 3.0C75CA-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0C75CA-M3/H is usually 5 days.

3.What payment methods are accepted for 3.0C75CA-M3/H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C75CA-M3/H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 3.0C75CA-M3/H?

3.0C75CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 3.0C75CA-M3/H order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 3.0C75CA-M3/H?

For technical support, including 3.0C75CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C75CA-M3/H requirements.

6.How does Aetrix verify that 3.0C75CA-M3/H is sourced from the original manufacturer or authorized distributors?

All 3.0C75CA-M3/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 3.0C75CA-M3/H meets industry standards.

7.What is the process for return or replacement of 3.0C75CA-M3/H?

All 3.0C75CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C75CA-M3/H, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 3.0C75CA-M3/H part is unused and in its original packaging.

Return procedure for 3.0C75CA-M3/H:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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