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Vishay General Semiconductor - Diodes Division 3.0C33CA-M3/H
- Part No.:
- 3.0C33CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C33CA-M3/H.pdf
- Description:
- 3KW, 33V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,315
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Product details
Overview
3.0C33CA-M3/H 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), 33 V stand-off voltage, and 53.3 V clamping voltage at 430 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.
For engineers reviewing the 3.0C33CA-M3/H datasheet, 3.0C33CA-M3/H pinout, 3.0C33CA-M3/H application, or 3.0C33CA-M3/H equivalent, this page delivers verified electrical parameters, JEDEC-compliant thermal data, IEC 61000-4-2 ESD immunity (30 kV contact/air), and precise SMC package dimensions - all critical for layout validation and transient robustness verification.
Technical Context
This TVS diode operates bidirectionally to clamp both positive and negative transients without polarity marking, leveraging silicon avalanche breakdown for sub-nanosecond response. Its low incremental surge resistance and 56.3 V clamping at 8/20 μs waveform (1245 A) ensure tight voltage limiting during lightning-induced surges per IEC 61000-4-5.
Rated for -55 °C to +175 °C junction temperature, it features MSL Level 1 moisture sensitivity and meets UL 94 V-0 flammability. The -M3 suffix confirms halogen-free, RoHS-compliant construction with matte tin-plated leads qualified to JESD 201 Class 2 whisker test.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin |
| VBR min/max | 36.7 V / 40.6 V - breakdown voltage range at 1 mA test current; ensures consistent turn-on threshold across production lot |
| VC @ IPPM (10/1000 μs) | 53.3 V at 430 A - clamping voltage under standard surge waveform; determines protected circuit's maximum transient exposure |
| PPPM | 3000 W - peak pulse power handling capability with 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 4 compliance |
| TJ max | +175 °C - maximum junction temperature; enables operation in high-ambient industrial environments without derating |
| RthJA | 90 °C/W - junction-to-ambient thermal resistance on FR4 PCB; informs heatsinking requirements for repeated surge duty |
| ESD rating | 30 kV HBM (contact/air) - immunity level per IEC 61000-4-2; eliminates need for additional ESD protection on board-level interfaces |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with unmarked cathode/anode - terminals are symmetrical and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bidirectional avalanche junction | Identical terminal behavior; either lead connects to protected line - no orientation required during placement |
| Case | Thermal path and mechanical anchor | Exposed metal slug provides primary heat dissipation path to PCB copper; requires adequate thermal pad area per JEDEC 51-2A |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 3000 W peak pulse power | Supports robust defense against 10/1000 μs surges up to 430 A - exceeds IEC 61000-4-5 Level 4 requirements |
| 53.3 V clamping at 430 A | Limits transient overvoltage to safe levels for 3.3 V–48 V logic and power ICs without overstressing gate oxides |
| MSL Level 1, 260 °C reflow | Permits standard lead-free SMT assembly without pre-baking or special handling |
| 30 kV ESD immunity | Eliminates need for secondary ESD protection on front-end interfaces such as Ethernet PHYs or RS-485 transceivers |
Applications
| Industrial Motor Drive Control | Telecom Power Supply Input |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against switching transients from IGBTs in variable-frequency drives. IC Role / Device Role / Timing Role: Primary transient shunt device placed directly across DC bus or gate drive traces. Use Value: Clamps 53.3 V spikes within nanoseconds, preventing latch-up or oxide rupture in 600 V IGBT gate drivers operating at 20 kHz PWM. | Use Scenario: Surge suppression on +48 V telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Front-line TVS on bulk input rail prior to DC/DC converters and hot-swap controllers. Use Value: Absorbs 3000 W surges while maintaining <53.3 V clamping, ensuring downstream 48 V tolerant ICs remain within absolute maximum ratings. |
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
Use Scenario: Protection of LIN/CAN transceiver power pins and microcontroller I/O against load dump and jump-start events. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary load-dump suppressor, targeting fast-rising transients. Use Value: Responds in <1 ns to 100 V/μs edges, limiting voltage to 53.3 V before sensitive 5 V MCU IOs exceed 6 V absolute max rating. | Use Scenario: Shielding analog front-ends (e.g., strain gauge bridges, RTD interfaces) from ESD and relay-switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) shunt protector on differential sensor inputs. Use Value: Adds <0.5 pF parasitic capacitance at signal frequencies ≤100 kHz, preserving gain accuracy and phase margin in precision instrumentation amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | Lower PPPM (600 W), same VWM (33 V), larger SMB package (DO-214AA) | Insufficient for IEC 61000-4-5 Level 4; suitable only for lower-energy ESD or inductive kick scenarios | Select when board space allows larger footprint and surge energy is limited to ≤600 W |
| SMCJ33CA | Same SMC package, identical VWM/VC specs, but rated for 1500 W PPPM (10/1000 μs) | Half the surge energy handling; acceptable where system-level testing confirms 1500 W suffices | Choose for cost-sensitive designs where full 3000 W margin is not required by end-equipment standards |
Compared with SMBJ33CA and SMCJ33CA, the 3.0C33CA-M3/H delivers double the surge energy capacity of SMCJ33CA and five times that of SMBJ33CA - enabling single-device compliance with harsh industrial surge standards without parallel devices or oversized footprints.
Availability
3.0C33CA-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and sensor signal conditioning requiring stable component supply and long-term obsolescence management.
Supply support for 3.0C33CA-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, and protection devices with emphasis on reliability and ruggedness for harsh environments.
The 3.0CxxCA-M3 series is engineered specifically for high-power transient suppression in industrial, telecom, and automotive power systems - delivering guaranteed 3000 W surge capability in compact SMC packaging.
FAQ
What is the clamping voltage of the 3.0C33CA-M3/H under a 10/1000 μs surge?
The 3.0C33CA-M3/H has a maximum clamping voltage (VC) of 53.3 V at its rated peak pulse current (IPPM) of 430 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees voltage limiting performance for downstream 3.3 V–48 V ICs. The 3.0C33CA-M3/H maintains this clamping level across its full operating temperature range (-55 °C to +175 °C).
Is the 3.0C33CA-M3/H suitable for IEC 61000-4-5 Level 4 compliance?
Yes, the 3.0C33CA-M3/H supports IEC 61000-4-5 Level 4 compliance with its 3000 W peak pulse power rating (10/1000 μs) and 56.3 V clamping at 1245 A (8/20 μs). Its 33 V stand-off voltage and 53.3 V clamping provide sufficient margin for 48 V systems. System-level validation is still required, but the 3.0C33CA-M3/H meets the core device-level surge absorption criteria defined in the standard.
Does the 3.0C33CA-M3/H require polarity-aware PCB layout?
No - the 3.0C33CA-M3/H is a bidirectional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Either lead may connect to the protected line or ground, simplifying layout and eliminating orientation errors during automated placement. This feature is confirmed in the Vishay datasheet Document Number 98266, Section "Polarity: no marking on bidirectional types".
What is the thermal resistance of the 3.0C33CA-M3/H on a standard FR4 PCB?
The 3.0C33CA-M3/H has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A guidelines. This value assumes a 2 oz. copper footprint matching the recommended SMC pad layout. For repeated surge events, thermal design must ensure average power dissipation stays within limits defined by the derating curve in Figure 2 of the datasheet.
How does the -M3 suffix affect the 3.0C33CA-M3/H construction?
The -M3 suffix on the 3.0C33CA-M3/H indicates halogen-free, RoHS-compliant molding compound; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; and qualification to JESD 201 Class 2 whisker resistance. These attributes ensure compatibility with lead-free reflow (peak 260 °C) and long-term reliability in industrial environments - all verified per Vishay Document Number 98266.
3.0C33CA-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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 56.3A
- 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)
3.0C33CA-M3/H FAQ
1.How can I place an order for 3.0C33CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C33CA-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 3.0C33CA-M3/H reliable?
The price and inventory of 3.0C33CA-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 3.0C33CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C33CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C33CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C33CA-M3/H?
3.0C33CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C33CA-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 3.0C33CA-M3/H?
For technical support, including 3.0C33CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C33CA-M3/H requirements.
6.How does Aetrix verify that 3.0C33CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C33CA-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 3.0C33CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C33CA-M3/H?
All 3.0C33CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C33CA-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 3.0C33CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C33CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C33CA-M3/H Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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