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Vishay General Semiconductor - Diodes Division 3.0C45CA-M3/H
- Part No.:
- 3.0C45CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C45CA-M3/H.pdf
- Description:
- 3KW, 45V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,443
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Product details
Overview
3.0C45CA-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), 72.7 V clamping voltage at 41.3 A, and 45 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in industrial and telecom equipment.
For engineers reviewing the 3.0C45CA-M3/H datasheet, 3.0C45CA-M3/H pinout, 3.0C45CA-M3/H application, or 3.0C45CA-M3/H equivalent, key selection criteria include its bidirectional polarity, 175 °C max junction temperature, 94.6 V clamping under 8/20 μs waveform, 1.0 μA reverse leakage at VWM, and compliance with IEC 61000-4-2 ESD (30 kV contact/air).
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltage events exceeding its 45 V stand-off threshold. Its silicon avalanche structure enables sub-nanosecond response time and low incremental surge resistance, ensuring rapid energy diversion before downstream components are stressed.
The device sustains non-repetitive 10/1000 μs pulses up to 3000 W and 8/20 μs pulses up to 30 kW, with thermal resistance of 90 °C/W (junction-to-ambient) and 4.0 °C/W (junction-to-mount), enabling robust operation in compact PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 45 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 50.0 V / 55.3 V - breakdown voltage range at 1 mA test current, defining turn-on threshold tolerance |
| VC @ IPPM (10/1000 μs) | 72.7 V - clamping voltage at 41.3 A peak pulse, limiting protected circuit voltage stress |
| PPPM | 3000 W - peak pulse power handling capability with 10/1000 μs waveform, critical for IEC 61000-4-5 compliance |
| ESD rating | 30 kV - human-body-model ESD immunity per IEC 61000-4-2, enabling direct interface protection |
| TJ max | 175 °C - maximum junction temperature, supporting operation in high-ambient industrial environments |
| ID @ VWM | 1.0 μA - reverse leakage at rated stand-off voltage, minimizing standby power loss in battery-powered systems |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, matte tin-plated leads solderable per J-STD-002/JESD 22-B102. Bidirectional construction means no polarity marking on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Anode/Cathode terminal pair | Bidirectional terminals - either end serves as anode or cathode depending on transient polarity; no fixed polarity assignment |
| Anode (unmarked end) | Anode/Cathode terminal pair | Electrically symmetric with cathode; identical surge conduction path in both directions |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled and differential signal lines without polarity constraints or external circuitry |
| 3000 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial ports |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during fast transients, reducing risk of logic upset or latch-up |
| MSL Level 1 rating | Enables standard reflow assembly without moisture sensitivity concerns or baking preconditioning |
| 30 kV HBM ESD rating | Eliminates need for additional ESD protection stages on exposed connectors or front-panel interfaces |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers from inductive kickback during IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across DC bus or gate-source terminals to clamp transients below component breakdown limits. Use Value: Prevents destructive overvoltage on 600 V-class gate drivers by limiting spikes to ≤72.7 V, preserving system reliability under repetitive switching stress. | Use Scenario: Surge suppression on -48 V telecom power feed lines entering base station cabinets exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level transient suppressor mounted at entry point to shunt 8/20 μs surges up to 317 A before reaching DC-DC converters. Use Value: Withstands 94.6 V clamping at 317 A (8/20 μs), maintaining downstream converter input integrity during Category B/C surge events. |
| Automotive Body Control Modules | Consumer Sensor Signal Lines |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across LIN data line and ground to clamp ±100 V transients within nanoseconds. Use Value: 175 °C max junction temperature supports under-hood placement; 1.0 μA leakage avoids battery drain in always-on modules. | Use Scenario: Shielding analog outputs of MEMS accelerometers and temperature sensors in smart home hubs from ESD events during handling or connector mating. IC Role / Device Role / Timing Role: Localized ESD clamp on sensor output trace, positioned adjacent to connector to minimize inductance. Use Value: 30 kV HBM rating ensures immunity to user-handling ESD, while 72.7 V clamping prevents ADC saturation or reference rail disturbance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45CA | Same VWM (45 V) and bidirectional configuration, but lower PPPM (600 W) and higher VC (73.0 V at 43.3 A) | Rated for lighter-duty surge environments (IEC 61000-4-5 Level 2); unsuitable for high-energy industrial mains coupling | Select when board space is constrained (SMB vs. SMC) and surge threat level is limited to <1 kA (8/20 μs) |
| 1.5KE45CA | Higher VWM (45 V), same polarity, but through-hole DO-201 package and lower thermal performance (RthJA = 10°C/W vs. 90°C/W) | Requires manual or wave soldering; less suitable for automated SMT production or high-density layouts | Choose only for legacy through-hole designs where rework to SMT is not feasible |
Compared with SMBJ45CA and 1.5KE45CA, the 3.0C45CA-M3/H delivers 5× higher peak pulse power in an SMT package with superior thermal resistance, making it optimal for high-reliability industrial and telecom surge protection where energy absorption and manufacturability are jointly critical.
Availability
3.0C45CA-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, automotive body control modules, and consumer sensor signal lines requiring stable component supply across extended production lifecycles.
Supply support for 3.0C45CA-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 high-reliability, high-power, and automotive-qualified components.
The 3.0C45CA-M3/H belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh industrial, telecom, and automotive environments where sustained surge energy and thermal stability are mission-critical.
FAQ
What is the clamping voltage of the 3.0C45CA-M3/H under a 10/1000 μs surge?
The 3.0C45CA-M3/H has a maximum clamping voltage (VC) of 72.7 V at 41.3 A peak pulse current under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuits during standardized surge events, directly impacting downstream component survivability.
Is the 3.0C45CA-M3/H suitable for bidirectional signal line protection?
Yes, the 3.0C45CA-M3/H is explicitly bidirectional, with symmetrical avalanche characteristics enabling equal clamping performance for positive and negative transients. Its DO-214AB package and lack of polarity marking make it ideal for protecting AC-coupled interfaces like RS-485, CAN, or audio lines without orientation constraints.
Does the 3.0C45CA-M3/H meet JEDEC moisture sensitivity requirements?
Yes, the 3.0C45CA-M3/H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/85 % RH and can undergo standard lead-free reflow without pre-baking. This eliminates moisture-related popcorning risks and simplifies SMT manufacturing flow.
What is the maximum operating temperature for the 3.0C45CA-M3/H?
The 3.0C45CA-M3/H supports a junction temperature range of -55 °C to +175 °C. Its 175 °C maximum rating allows reliable operation in under-hood automotive applications, industrial enclosures, and high-power telecom gear where ambient temperatures exceed 100 °C.
How does the 3.0C45CA-M3/H compare to standard 1.5 kW TVS diodes in surge handling?
The 3.0C45CA-M3/H delivers 3000 W peak pulse power-double that of typical 1.5 kW TVS diodes-enabling it to absorb larger surge energies without failure. Its lower incremental surge resistance and tighter clamping ratio (VC/VBR ≈ 1.36) also reduce voltage overshoot during fast transients compared to older-generation devices.
3.0C45CA-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):
- 45V
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 72.7V
- Current - Peak Pulse (10/1000µs):
- 41.3A
- 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)
3.0C45CA-M3/H FAQ
1.How can I place an order for 3.0C45CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C45CA-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 3.0C45CA-M3/H reliable?
The price and inventory of 3.0C45CA-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 3.0C45CA-M3/H is usually 5 days.
3.What payment methods are accepted for 3.0C45CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C45CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C45CA-M3/H?
3.0C45CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C45CA-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 3.0C45CA-M3/H?
For technical support, including 3.0C45CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C45CA-M3/H requirements.
6.How does Aetrix verify that 3.0C45CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 3.0C45CA-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 3.0C45CA-M3/H meets industry standards.
7.What is the process for return or replacement of 3.0C45CA-M3/H?
All 3.0C45CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C45CA-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 3.0C45CA-M3/H part is unused and in its original packaging.
Return procedure for 3.0C45CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C45CA-M3/H Tags
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