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Vishay 3.0C45CA-M3/I
- Part No.:
- 3.0C45CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C45CA-M3/I.pdf
- Description:
- 3KW, 45V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
3.0C45CA-M3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode 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 in industrial power supplies and telecom interfaces.
For engineers reviewing the 3.0C45CA-M3/I datasheet, 3.0C45CA-M3/I pinout, 3.0C45CA-M3/I application, or 3.0C45CA-M3/I equivalent, this page delivers verified electrical specs, JEDEC-compliant thermal data, IEC 61000-4-2 ESD immunity (30 kV contact/air), and real-world clamping performance under 10/1000 μs and 8/20 μs transients.
Technical Context
This TVS operates as a voltage-clamped shunt protector triggered by reverse-biased avalanche breakdown. Its bidirectional structure enables symmetrical clamping on both polarities without external polarity management, supporting AC-coupled lines and differential interfaces.
It delivers 3000 W peak pulse power per 10/1000 μs waveform and sustains 317 A peak current under 8/20 μs surges, with low incremental surge resistance ensuring minimal voltage overshoot during fast transients. Junction temperature range spans –55 °C to +175 °C, validated per JEDEC 51-2A and 51-14 thermal models.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 45 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 μA; defines safe working margin below clamping threshold |
| VBR min/max | 50.0 V / 55.3 V - Breakdown occurs within this range at 1.0 mA test current; ensures consistent turn-on across production lots |
| VC @ IPPM | 72.7 V @ 41.3 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on protected downstream circuitry |
| PPPM | 3000 W - Peak pulse power handling capability; validates robustness against lightning-induced surges per IEC 61000-4-5 |
| ESD immunity | 30 kV - Human body model (HBM) contact and air discharge rating per IEC 61000-4-2; qualifies for harsh electrostatic environments |
| TJ max | +175 °C - Maximum junction temperature; supports operation in high-ambient industrial enclosures and under sustained surge duty cycles |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (K) | Avalanche junction anode terminal | Connected to system ground or low-impedance return path to shunt transient energy away from protected node |
| Anode (A) | Avalanche junction cathode terminal | Connected to line or signal being protected; forms symmetrical clamp with Cathode in bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, and ungrounded lines without polarity concerns |
| 30 kW surge rating (8/20 μs) | Supports compliance with IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) when properly laid out |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes overvoltage exposure to protected ICs while maintaining sufficient margin above normal operating voltage |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT manufacturing |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing circuits against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Shunt TVS device clamping transient spikes to <73 V during rapid load disconnection or short-circuit events. Use Value: Prevents gate oxide damage and false triggering in isolated gate drivers by limiting voltage excursion to 1.6× nominal bus voltage. | Use Scenario: Surge suppression on POTS or xDSL line interface circuits exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across transformer secondary or line driver inputs. Use Value: Maintains signal integrity up to 1 MHz while surviving repeated 4 kV IEC 61000-4-5 surges without degradation. |
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
Use Scenario: Input protection for LIN/CAN transceivers and microcontroller GPIOs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Fast-response shunt suppressor absorbing energy from 12 V battery line transients. Use Value: Survives 30 kV HBM ESD events and clamps ISO 7637-2 Pulse 5a (75 V/100 ms) to <75 V, preserving transceiver functionality. | Use Scenario: Protection of analog front-end inputs (e.g., 4–20 mA loop receivers, RTD bridges) from ESD and field wiring faults. IC Role / Device Role / Timing Role: Low-leakage (<1 μA at 45 V) bidirectional clamp placed directly at connector entry point. Use Value: Ensures measurement accuracy remains unaffected during normal operation while limiting fault voltage to 72.7 V during 41.3 A surges. |
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 | Lower peak pulse power (600 W vs. 3000 W); same VWM (45 V) and package (SMB/DO-214AA) | Not suitable for lightning-level surges; limited to board-level ESD and low-energy switching noise | Select only where surge threat level is restricted to IEC 61000-4-2 ESD and not IEC 61000-4-5 lightning |
| SMCJ45CA | Identical electrical ratings and SMC package; differs only in tape/reel packaging (e.g., SMCJ45CA-E3/5AT uses 5000-unit reel) | No functional difference; compatible in all circuit roles and PCB footprints | Preferred for high-volume automated assembly requiring larger reel quantities |
Compared with SMBJ45CA and SMCJ45CA, the 3.0C45CA-M3/I offers the same 45 V stand-off and bidirectional behavior but delivers five times the pulse power of SMBJ45CA and matches SMCJ45CA's ruggedness while offering traceable industrial-grade qualification and -M3 whisker-tested terminations.
Availability
3.0C45CA-M3/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for 3.0C45CA-M3/I 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and industrial-grade qualification.
The 3.0CxxCA-M3 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments including factory automation, telecom infrastructure, and transportation systems.
FAQ
What is the clamping voltage of the 3.0C45CA-M3/I under a 10/1000 μs surge?
The 3.0C45CA-M3/I clamps to a maximum of 72.7 V when subjected to its rated peak pulse current of 41.3 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and guarantees predictable overvoltage limiting for downstream components. The 3.0C45CA-M3/I maintains this clamping performance across its full operating temperature range of –55 °C to +175 °C.
Is the 3.0C45CA-M3/I suitable for protecting RS-485 communication lines?
Yes, the 3.0C45CA-M3/I is suitable for RS-485 line protection due to its bidirectional structure, 45 V stand-off voltage matching typical ±12 V common-mode range, and ability to clamp transients to 72.7 V without latch-up. Its 3000 W rating handles induced surges from nearby AC cables or EFT bursts. The 3.0C45CA-M3/I must be placed close to the connector with low-inductance grounding to preserve response time.
Does the 3.0C45CA-M3/I meet automotive qualification standards?
The 3.0C45CA-M3/I is not AEC-Q200 qualified, but it meets industrial-grade requirements including MSL Level 1, JESD 201 Class 2 whisker resistance, and IEC 61000-4-2 ESD immunity (30 kV). For automotive use, it may serve in non-safety-critical body electronics if validated per ISO 7637-2 Pulse 1/2/5a; however, the 3.0C45CA-M3/I lacks formal automotive qualification documentation and should undergo system-level testing before deployment.
What is the thermal resistance of the 3.0C45CA-M3/I from junction to ambient?
The 3.0C45CA-M3/I has a typical 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. This value assumes the recommended SMC footprint and influences derating curves above 25 °C ambient. The 3.0C45CA-M3/I also features RthJM = 4.0 °C/W (junction-to-mount) per JEDEC 51-14, critical for heatsink-integrated designs.
How does the -M3 suffix affect the 3.0C45CA-M3/I?
The -M3 suffix on the 3.0C45CA-M3/I indicates halogen-free, RoHS-compliant construction, industrial-grade reliability, and compliance with JESD 201 Class 2 whisker testing for matte tin-plated terminals. It also confirms LF peak reflow temperature capability up to 260 °C and MSL Level 1 handling-no bake required prior to reflow. The 3.0C45CA-M3/I's -I packaging denotes 3500-unit 13-inch tape-and-reel delivery.
3.0C45CA-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):
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
3.0C45CA-M3/I FAQ
1.How can I place an order for 3.0C45CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C45CA-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 3.0C45CA-M3/I reliable?
The price and inventory of 3.0C45CA-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 3.0C45CA-M3/I is usually 5 days.
3.What payment methods are accepted for 3.0C45CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C45CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C45CA-M3/I?
3.0C45CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C45CA-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 3.0C45CA-M3/I?
For technical support, including 3.0C45CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C45CA-M3/I requirements.
6.How does Aetrix verify that 3.0C45CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 3.0C45CA-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 3.0C45CA-M3/I meets industry standards.
7.What is the process for return or replacement of 3.0C45CA-M3/I?
All 3.0C45CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C45CA-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 3.0C45CA-M3/I part is unused and in its original packaging.
Return procedure for 3.0C45CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C45CA-M3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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