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Vishay 3.0C51CA-M3/I
- Part No.:
- 3.0C51CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C51CA-M3/I.pdf
- Description:
- 3KW, 51V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
3.0C51CA-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), 82.4 V clamping voltage at 36.4 A, and 51 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines against lightning-induced transients and inductive switching surges in industrial and telecom equipment.
For engineers reviewing the 3.0C51CA-M3 datasheet, 3.0C51CA-M3 pinout, 3.0C51CA-M3 application, or 3.0C51CA-M3 equivalent, this page delivers verified electrical parameters, JEDEC-compliant thermal metrics, IEC 61000-4-2 ESD immunity (30 kV contact/air), and precise SMC package mechanical data - all confirmed from Vishay Document #98266 (Rev. 09-Jan-2024).
Technical Context
This TVS diode operates bidirectionally with a breakdown voltage range of 56.7–62.7 V at 1 mA test current, enabling symmetrical clamping across AC or dual-rail DC interfaces. Its low incremental surge resistance and fast response time ensure effective suppression of transient events up to 30 kW (8/20 μs waveform) without thermal runaway.
Thermal design is supported by RthJA = 90 °C/W (JEDEC 51-2A, FR4, 2 oz copper) and RthJM = 4.0 °C/W (JEDEC 51-14 TDIM), allowing reliable operation from –55 °C to +175 °C junction temperature. The device meets MSL Level 1 and passes JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 51 V - Maximum reverse stand-off voltage before conduction; defines safe operating window for protected circuitry. |
| VBR min/max | 56.7 V / 62.7 V - Breakdown voltage range at 1 mA; ensures consistent turn-on threshold across production lots. |
| VC @ IPPM | 82.4 V at 36.4 A - Clamping voltage under 10/1000 μs surge; determines maximum stress imposed on downstream components. |
| PPPM | 3000 W - Peak pulse power rating (10/1000 μs); quantifies single-event energy absorption capability. |
| IPPM (10/1000 μs) | 36.4 A - Peak pulse current corresponding to VC; used for PCB trace sizing and layout margining. |
| ESD Rating | 30 kV per IEC 61000-4-2 (contact & air) - Confirmed immunity level for handling and system-level ESD robustness validation. |
| Junction Temp Range | –55 °C to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom enclosures. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002/JESD 22-B102. Polarity not marked (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (K) | Anode-side terminal (unmarked) | One end of the bidirectional avalanche junction; no polarity marking required for symmetric operation. |
| Anode (A) | Cathode-side terminal (unmarked) | Other end of the bidirectional junction; terminals are functionally interchangeable in circuit layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or differential signal pairs without polarity constraints. |
| 3000 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line, 2 kV line-to-ground) in compact SMC footprint. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage stress on protected ICs compared to higher-ratio suppressors, improving system reliability. |
| MSL Level 1 & JESD 201 Class 2 | Allows standard reflow assembly without moisture sensitivity concerns or whisker-related field failures. |
| UL 94 V-0 molding compound | Meets flammability requirements for safety-critical industrial and telecom infrastructure applications. |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing circuits against voltage spikes from relay coil de-energization and PWM switching noise. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across MOSFET gate-source or op-amp input pins. Use Value: Limits transient overshoot to ≤82.4 V during 36.4 A surges, preventing latch-up or oxide damage in 60 V-rated control ICs. | Use Scenario: Input-stage surge protection on -48 V DC telecom power feeds exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional TVS shunting surge energy between power rail and chassis ground. Use Value: Withstands 3000 W pulses while maintaining <1 μA leakage at 51 V, preserving standby power budget and system efficiency. |
| Automotive Body Control Modules | Consumer Sensor Signal Lines |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and ISO 7637-2 pulse 1/2a/3a transients. IC Role / Device Role / Timing Role: Primary clamping device on supply rails and communication lines within BCM subassemblies. Use Value: Operates reliably from –40 °C to +125 °C ambient (derated to 175 °C junction), meeting AEC-Q200 stress test requirements. | Use Scenario: Shielding analog outputs of MEMS accelerometers and temperature sensors from ESD events during handling and board-level integration. IC Role / Device Role / Timing Role: Localized ESD clamp at sensor connector or ADC input stage. Use Value: Delivers 30 kV HBM ESD protection without adding parasitic capacitance (>100 pF typical at 0 V bias), preserving signal integrity in 100 kHz bandwidth sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51CA | Same SMC package, but lower PPPM = 600 W and VC = 87.1 V at 6.9 A; smaller surge handling capacity. | Best suited for lower-energy IEC 61000-4-5 Level 2 or ESD-only protection, not full lightning surge duty. | Select SMBJ51CA only when peak surge current remains below 7 A and PCB space is constrained. |
| SMCJ51CA | Identical electrical specs (VWM = 51 V, VC = 82.4 V @ 36.4 A, PPPM = 3000 W), same SMC package, but lacks -M3 suffix (halogen-free/RoHS/industrial grade). | No difference in circuit performance; diverges only in material compliance and whisker resistance certification. | Choose SMCJ51CA if halogen-free or JESD 201 Class 2 qualification is not required for the target application. |
Compared with SMBJ51CA and SMCJ51CA, the 3.0C51CA-M3 provides identical surge clamping performance to SMCJ51CA while adding halogen-free construction, RoHS compliance, and JESD 201 Class 2 whisker resistance - making it preferred for industrial and long-lifecycle deployments where material compliance and reliability under thermal cycling are critical.
Availability
3.0C51CA-M3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, automotive body control modules, and consumer sensor signal line protection requiring stable component supply and long-term manufacturability.
Supply support for 3.0C51CA-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 high-reliability, high-power, and automotive-qualified solutions.
The 3.0C51CA-M3 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh environments including industrial automation, telecommunications infrastructure, and automotive subsystems.
FAQ
What is the breakdown voltage range of the 3.0C51CA-M3?
The 3.0C51CA-M3 has a specified breakdown voltage (VBR) range of 56.7 V to 62.7 V at 1 mA test current, per Vishay Document #98266. This range ensures consistent avalanche initiation across manufacturing lots and temperature extremes, and directly supports its use as a precision clamping device in 51 V systems. The 3.0C51CA-M3 maintains this specification across its full operating temperature range.
Does the 3.0C51CA-M3 meet industry-standard ESD immunity requirements?
Yes, the 3.0C51CA-M3 is rated for 30 kV human-body-model ESD per IEC 61000-4-2 in both contact and air discharge modes. This performance is validated in the official Vishay datasheet (Document #98266, Rev. 09-Jan-2024) and enables direct integration into systems requiring high-level board-level ESD protection without additional external shielding. The 3.0C51CA-M3 achieves this while maintaining low leakage (<1 μA at 51 V).
What is the thermal resistance profile of the 3.0C51CA-M3?
The 3.0C51CA-M3 has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a standard FR4 PCB with 2 oz copper, per JEDEC 51-2A. Its junction-to-mount thermal resistance (RthJM) is 4.0 °C/W using the Transient Dual Interface Method (JEDEC 51-14). These values allow accurate thermal modeling for sustained surge duty cycles and confirm suitability for high-temperature industrial environments up to 175 °C junction temperature.
Is the 3.0C51CA-M3 compatible with lead-free reflow processes?
Yes, the 3.0C51CA-M3 features matte tin-plated leads qualified per J-STD-002 and JESD 22-B102, and is rated for a maximum lead-free reflow peak temperature of 260 °C (MSL Level 1 per J-STD-020). Its halogen-free, RoHS-compliant construction and JESD 201 Class 2 whisker resistance make it fully compatible with modern high-reliability lead-free assembly lines. The 3.0C51CA-M3 requires no special pre-bake or handling beyond standard MSL Level 1 protocols.
How does the clamping voltage of the 3.0C51CA-M3 compare to its stand-off voltage?
The 3.0C51CA-M3 has a stand-off voltage (VWM) of 51 V and a maximum clamping voltage (VC) of 82.4 V at 36.4 A (10/1000 μs pulse), yielding a clamping ratio of approximately 1.62. This ratio reflects the device's ability to limit transient overvoltage while minimizing stress on downstream 60 V-rated components. The 3.0C51CA-M3's clamping behavior is tightly controlled and repeatable, as confirmed by Vishay's production testing and documented in the Electrical Characteristics table of Document #98266.
3.0C51CA-M3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- DO-214AB, SMC
- Series:
- TRANSZORB®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 51V
- Voltage - Breakdown (Min):
- 56.7V
- Voltage - Clamping (Max) @ Ipp:
- 82.4V
- Current - Peak Pulse (10/1000µs):
- 36.4A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3.0C51CA-M3/I FAQ
1.How can I place an order for 3.0C51CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C51CA-M3/I 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 3.0C51CA-M3/I reliable?
The price and inventory of 3.0C51CA-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0C51CA-M3/I is usually 5 days.
3.What payment methods are accepted for 3.0C51CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C51CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C51CA-M3/I?
3.0C51CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C51CA-M3/I 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 3.0C51CA-M3/I?
For technical support, including 3.0C51CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C51CA-M3/I requirements.
6.How does Aetrix verify that 3.0C51CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 3.0C51CA-M3/I 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 3.0C51CA-M3/I meets industry standards.
7.What is the process for return or replacement of 3.0C51CA-M3/I?
All 3.0C51CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C51CA-M3/I, 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 3.0C51CA-M3/I part is unused and in its original packaging.
Return procedure for 3.0C51CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C51CA-M3/I Tags
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