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Vishay General Semiconductor - Diodes Division 3.0C51CA-M3/H
- Part No.:
- 3.0C51CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C51CA-M3/H.pdf
- Description:
- 3KW, 51V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,639
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Product details
Overview
3.0C51CA-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), 82.4 V maximum clamping voltage at 36.4 A, and 51 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.
For engineers reviewing the 3.0C51CA-M3/H datasheet, 3.0C51CA-M3/H pinout, 3.0C51CA-M3/H application, or 3.0C51CA-M3/H equivalent, key selection criteria include clamping voltage at rated IPPM, bidirectional polarity, SMC package thermal performance (RthJM = 4.0 °C/W), and compliance with IEC 61000-4-2 ESD (30 kV contact/air).
Technical Context
This TVS diode operates as a voltage-clamping overvoltage protection device, triggered when reverse transient voltage exceeds its 56.7–62.7 V breakdown range. Its low incremental surge resistance and fast response time ensure minimal let-through energy during 8/20 μs (107 A) and 10/1000 μs (36.4 A) transients.
It meets J-STD-020 MSL Level 1, supports 260 °C lead-free reflow, and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The -M3 suffix confirms halogen-free, RoHS-compliant, industrial-grade construction with JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 51 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working limit. |
| VBR min/max | 56.7 V / 62.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 82.4 V at 36.4 A (10/1000 μs) - Clamped voltage seen by protected circuit under worst-case surge; determines residual stress on downstream components. |
| PPPM | 3000 W (10/1000 μs) - Peak surge energy handling capacity; enables robust protection against inductive switching transients. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in high-ambient industrial environments with appropriate PCB copper area. |
| ESD rating | 30 kV per IEC 61000-4-2 (contact/air) - Validates immunity to human-body-model electrostatic discharge events. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); thermal pad layout optimized for RthJM = 4.0 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Transient current sink (bidirectional) | Acts as common terminal for both polarities; connects to protected line or ground return path depending on layout. |
| Anode | Transient current source (bidirectional) | Completes low-impedance surge path; no functional distinction from cathode in bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled or floating signal lines without polarity constraints; eliminates need for dual-device configurations. |
| 30 kW surge capability (8/20 μs) | Withstands lightning-induced surges per IEC 61000-4-5; supports telecom and outdoor industrial interface protection. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage stress on protected ICs; improves system reliability versus higher-ratio TVS devices. |
| MSL Level 1 rating | Enables single-pass lead-free reflow without moisture sensitivity concerns; reduces manufacturing risk and cost. |
Applications
| Industrial Motor Drive Protection | Telecom Line Interface |
|---|---|
Use Scenario: Suppresses voltage spikes from relay coil de-energization and IGBT switching in PLC output modules. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across motor driver power rail or gate drive traces. Use Value: Limits transient overshoot to ≤82.4 V, preventing latch-up or gate oxide damage in 60 V-rated MOSFETs. | Use Scenario: Shields Ethernet PHY or DSL line drivers from induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary surge suppression element at line entry point, upstream of choke and common-mode choke. Use Value: Absorbs 36.4 A (10/1000 μs) surges while maintaining <100 ns response, preserving signal integrity on 100 Mbps links. |
| Automotive Body Control Module | Consumer Appliance Power Supply |
Use Scenario: Protects LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS on LIN data line and VBAT-supply rail. Use Value: Withstands 30 kV ESD per IEC 61000-4-2 and clamps 12 V system surges to <85 V, meeting ISO 16750-2 requirements. | Use Scenario: Safeguards SMPS controller ICs and optocoupler inputs against mains-borne transients in washing machine control boards. IC Role / Device Role / Timing Role: Secondary-side TVS on feedback loop and auxiliary bias rail. Use Value: Provides 3000 W surge margin at 51 V standoff, enabling compliance with IEC 61000-4-4 (EFT) and UL 1449 Type 4. |
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 | Lower PPPM (600 W), same VWM (51 V), SMB package (smaller footprint, higher RthJA) | Not suitable for 3000 W surge events; limited to lower-energy ESD/EFT scenarios | Select only if board space is constrained and surge threat level is ≤600 W. |
| 1.5KE51CA | Higher PPPM (1500 W), axial-leaded DO-201 package, no MSL Level 1 rating | Requires through-hole assembly; incompatible with automated SMT lines and high-reliability reflow profiles | Choose only for legacy through-hole designs where SMT is unavailable. |
Compared with SMBJ51CA and 1.5KE51CA, the 3.0C51CA-M3/H delivers triple the surge power handling in an MSL Level 1 SMT package, enabling robust protection in space-constrained, high-volume industrial PCBs without compromising manufacturability or thermal performance.
Availability
3.0C51CA-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and consumer appliance power supplies requiring stable component supply and long-term production continuity.
Supply support for 3.0C51CA-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, and power MOSFETs with emphasis on reliability, ruggedness, and application-specific optimization.
The 3.0CxxCA-M3 series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, telecom infrastructure, and automotive subsystems where sustained surge immunity and SMT manufacturability are critical.
FAQ
What is the breakdown voltage range of the 3.0C51CA-M3/H?
The 3.0C51CA-M3/H has a specified breakdown voltage (VBR) range of 56.7 V to 62.7 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent turn-on behavior across production lots and supports reliable clamping onset in 48–60 V system rails.
Does the 3.0C51CA-M3/H support lead-free reflow soldering?
Yes, the 3.0C51CA-M3/H is qualified for lead-free reflow with a maximum peak temperature of 260 °C and meets J-STD-020 MSL Level 1. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, ensuring robust wetting and intermetallic formation during standard SMT processes.
What is the maximum clamping voltage of the 3.0C51CA-M3/H under a 10/1000 μs surge?
The 3.0C51CA-M3/H exhibits a maximum clamping voltage (VC) of 82.4 V at 36.4 A under a 10/1000 μs waveform. This value is guaranteed across temperature and lifetime, defining the upper voltage limit imposed on protected circuitry during standardized surge events.
Is the 3.0C51CA-M3/H unidirectional or bidirectional?
The 3.0C51CA-M3/H is a bidirectional Transient Voltage Suppressor, meaning it provides symmetrical clamping for both positive- and negative-going transients. No polarity marking is present on the SMC package, simplifying layout and eliminating orientation errors during placement.
How does the 3.0C51CA-M3/H compare to standard 51 V Zener diodes in surge protection?
Unlike general-purpose Zener diodes, the 3.0C51CA-M3/H is specifically characterized for high-energy transient suppression: it delivers 3000 W peak pulse power, guarantees clamping performance up to 175 °C junction temperature, and passes 30 kV ESD testing. Standard Zeners lack validated surge ratings, thermal robustness, or standardized waveform compliance.
3.0C51CA-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):
- 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:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3.0C51CA-M3/H FAQ
1.How can I place an order for 3.0C51CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C51CA-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 3.0C51CA-M3/H reliable?
The price and inventory of 3.0C51CA-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 3.0C51CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C51CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C51CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C51CA-M3/H?
3.0C51CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C51CA-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 3.0C51CA-M3/H?
For technical support, including 3.0C51CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C51CA-M3/H requirements.
6.How does Aetrix verify that 3.0C51CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C51CA-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 3.0C51CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C51CA-M3/H?
All 3.0C51CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C51CA-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 3.0C51CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C51CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C51CA-M3/H Tags
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