My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 3.0C40CA-M3/H
- Part No.:
- 3.0C40CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C40CA-M3/H.pdf
- Description:
- 3KW, 40V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,496
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3.0C40CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 40 V stand-off voltage (VWM), 44.4–49.1 V breakdown voltage (VBR), 64.5 V clamping voltage at 357 A (10/1000 μs), 3000 W peak pulse power, and operates from –55 °C to +175 °C - deployed on power rails and signal lines in industrial motor drives.
For engineers reviewing the 3.0C40CA-M3/H datasheet, 3.0C40CA-M3/H pinout, 3.0C40CA-M3/H application, or 3.0C40CA-M3/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, bidirectional surge handling up to 357 A, thermal resistance (RthJA = 90 °C/W), MSL Level 1 moisture sensitivity, and RoHS-compliant halogen-free construction.
Technical Context
This TVS diode employs an avalanche-based silicon junction to provide fast response (<1 ns) to transient overvoltages, with low incremental surge resistance ensuring minimal voltage overshoot during high-current events. Its bidirectional architecture enables symmetric clamping for AC-coupled or floating signal paths without polarity constraints.
The device meets IEC 61000-4-2 ESD immunity (±30 kV contact/air) and is rated per ANSI/IEEE C62.35 for transient suppression. Thermal design is supported by validated RthJM = 4.0 °C/W (junction-to-mount) and RthJA = 90 °C/W (junction-to-ambient on FR4).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR min/max | 44.4 V / 49.1 V at 1 mA - guaranteed breakdown range ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 64.5 V at 357 A (10/1000 μs) - peak clamped voltage seen by protected circuit during worst-case surge event. |
| PPPM | 3000 W (10/1000 μs) - energy-handling capability sufficient for industrial load-switching transients and lightning-induced surges. |
| TJ max | +175 °C - extended junction temperature rating supports operation in high-ambient environments like motor control enclosures. |
| ESD Rating | ±30 kV (IEC 61000-4-2, contact/air) - provides system-level ESD robustness without external shielding or filtering. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Anode/Cathode terminal pair | Bidirectional structure means either terminal serves as anode or cathode depending on transient polarity; no functional distinction in layout. |
| Anode (unmarked end) | Anode/Cathode terminal pair | Identical electrical role to cathode terminal; device symmetry eliminates orientation dependency during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded circuits without polarity concerns. |
| 3000 W peak pulse power (10/1000 μs) | Supports high-energy transients common in 24–48 V industrial power systems and relay-coil switching. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot relative to breakdown, reducing stress on downstream MOSFETs and ICs. |
| MSL Level 1 rating | Allows standard SMT reflow without dry-pack or baking, simplifying manufacturing and reducing cost. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus or gate-source terminals to clamp sub-100 ns spikes. Use Value: Limits voltage excursion to ≤64.5 V during 357 A surges, preventing gate oxide rupture and false triggering in 600 V-class power stages. | Use Scenario: Input-stage surge protection on 48 V telecom rectifier outputs exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary shunt protector absorbing 8/20 μs line surges before they reach DC-DC converters and PMICs. Use Value: Withstands 84.0 V clamping at 357 A (8/20 μs), maintaining output regulation integrity during 6 kV line-earth transients. |
| Automotive Body Control Modules | Industrial Sensor Interfaces |
Use Scenario: CAN FD and LIN bus line protection in BCMs subjected to load-dump and jump-start conditions. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential bus pairs to suppress ±30 kV ESD and coupled transients. Use Value: Delivers ±30 kV IEC 61000-4-2 contact discharge immunity while maintaining <1 nA leakage at 40 V, preserving bus signal integrity. | Use Scenario: Protection of analog front-ends (e.g., RTD, thermocouple inputs) in PLC analog I/O modules exposed to field-wiring transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. 46.5 pF at 0 V) shunt device placed at connector entry point. Use Value: Clamps 10/1000 μs surges to 64.5 V without distorting mV-level sensor signals due to minimal parasitic capacitance and leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40CA | Lower PPPM (600 W), same VWM (40 V), SMB package (smaller footprint, higher RthJA = 110 °C/W) | Not suitable for 3000 W surge events; limited to lower-energy consumer interfaces | Select when board space is constrained and surge energy is ≤600 W. |
| SMCJ40CA | Same SMC package and PPPM (3000 W), but VBR min = 44.4 V (identical), VWM = 40 V (identical), and VC = 64.5 V (identical); differs only in marking code and tape/reel packaging | No functional difference; identical electrical and thermal performance | Direct form-fit-function alternative with identical protection capability and mounting requirements. |
Compared with SMBJ40CA and SMCJ40CA, the 3.0C40CA-M3/H delivers identical clamping and surge ratings as SMCJ40CA but with verified -M3 halogen-free/RoHS compliance and JESD201 Class 2 whisker resistance, while offering significantly higher energy handling than SMBJ40CA for demanding industrial deployments.
Availability
3.0C40CA-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor interfaces requiring stable component supply across long-lifecycle programs.
Supply support for 3.0C40CA-M3/H 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, power handling, and industrial-grade qualification.
The 3.0CxxCA-M3 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh-environment applications including factory automation, renewable energy inverters, and transportation electronics.
FAQ
What is the clamping voltage of the 3.0C40CA-M3/H under a 10/1000 μs surge?
The 3.0C40CA-M3/H clamps to a maximum of 64.5 V when subjected to its rated peak pulse current of 357 A with a 10/1000 μs waveform. This value is guaranteed across temperature and process variation per Vishay Document 98266, ensuring consistent protection margin for downstream 60 V-rated components.
Is the 3.0C40CA-M3/H RoHS-compliant and halogen-free?
Yes, the 3.0C40CA-M3/H is explicitly designated as halogen-free and RoHS-compliant per its -M3 suffix, meeting JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements. This is confirmed in the "Mechanical Data" section of Vishay Document 98266 (Revision 09-Jan-2024).
Does the 3.0C40CA-M3/H have polarity markings?
No, the 3.0C40CA-M3/H is a bidirectional TVS and carries no polarity marking on the SMC (DO-214AB) package. Its symmetrical construction allows either end to serve as anode or cathode, eliminating orientation constraints during PCB assembly.
What is the maximum operating temperature for the 3.0C40CA-M3/H?
The 3.0C40CA-M3/H has a maximum junction temperature (TJ max) of +175 °C, enabling reliable operation in high-ambient environments such as enclosed motor drive cabinets or under-hood automotive electronics where thermal management is challenging.
How does the 3.0C40CA-M3/H perform under ESD stress?
The 3.0C40CA-M3/H meets IEC 61000-4-2 with ±30 kV contact discharge and ±30 kV air discharge, providing system-level ESD robustness without additional protection layers. This rating is validated per the "Immunity to Static Electrical Discharge" table in Vishay Document 98266.
3.0C40CA-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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 46.5A
- 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)
3.0C40CA-M3/H FAQ
1.How can I place an order for 3.0C40CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C40CA-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 3.0C40CA-M3/H reliable?
The price and inventory of 3.0C40CA-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 3.0C40CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C40CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C40CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C40CA-M3/H?
3.0C40CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C40CA-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 3.0C40CA-M3/H?
For technical support, including 3.0C40CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C40CA-M3/H requirements.
6.How does Aetrix verify that 3.0C40CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C40CA-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 3.0C40CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C40CA-M3/H?
All 3.0C40CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C40CA-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 3.0C40CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C40CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C40CA-M3/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
