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Vishay 3.0C20CA-M3/I
- Part No.:
- 3.0C20CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C20CA-M3/I.pdf
- Description:
- 3KW, 20V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
3.0C20CA-M3/I 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), 32.4 V clamping voltage at 92.6 A, and 20 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom power rails.
For engineers reviewing the 3.0C20CA-M3/I datasheet, 3.0C20CA-M3/I pinout, 3.0C20CA-M3/I application, or 3.0C20CA-M3/I equivalent, key selection criteria include bidirectional clamping behavior, 175 °C max junction temperature, MSL Level 1 rating, 30 kV ESD immunity per IEC 61000-4-2, and compatibility with automated SMT assembly on FR4 PCBs.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients induced by inductive switching or lightning surges. Its bidirectional architecture enables symmetrical clamping above ±22.2 V breakdown and below ±20 V reverse stand-off, with low incremental surge resistance ensuring stable clamping under repetitive stress.
It meets JEDEC J-STD-020 MSL Level 1 (260 °C peak reflow), features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing. Thermal resistance is 90 °C/W junction-to-ambient and 4.0 °C/W junction-to-mount.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.2 V / 24.5 V - ensures reliable conduction onset above system operating voltage while avoiding false triggering |
| VWM | 20 V - maximum continuous reverse voltage the device blocks without leakage exceeding 2.0 μA |
| VC @ IPPM | 32.4 V @ 92.6 A (10/1000 μs) - defines worst-case clamped voltage seen by protected circuit during surge |
| PPPM | 3000 W - peak transient energy absorption capability under standardized 10/1000 μs waveform |
| TJ max | +175 °C - enables operation in high-temperature industrial environments without derating penalties |
| ESD immunity | 30 kV contact & air discharge (IEC 61000-4-2) - exceeds standard human-body model requirements for rugged end-equipment |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, 260 °C peak reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band) | Reference terminal for bidirectional clamping | No polarity marking on bidirectional types; terminals are functionally symmetric but require orientation-aware PCB layout for thermal symmetry |
| Anode | Reference terminal for bidirectional clamping | Identical electrical role to cathode; device conducts equally in both directions once VBR threshold is exceeded in either polarity |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 3000 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 Level 4 surges on 24 V industrial buses |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage stress on downstream silicon during transient events |
| MSL Level 1 rating | Permits unlimited floor life and single-reflow processing without dry-pack or baking requirements |
| 30 kV ESD immunity | Eliminates need for additional HBM-level protection stages in front-end interfaces |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against flyback spikes from 24–48 V DC motor switching. IC Role / Device Role / Timing Role: Shunt TVS placed across power rail inputs to clamp inductive kickback before it reaches sensitive analog or logic circuitry. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V control ICs when subjected to >100 V transients with sub-μs rise time. | Use Scenario: Surge suppression on -48 V DC telecom power distribution boards exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bidirectional clamping element installed between power rail and chassis ground to divert differential and common-mode energy. Use Value: Maintains <25 V overvoltage margin on -48 V systems during 10/1000 μs surges up to 92.6 A, preserving PoE controller integrity. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
Use Scenario: Input protection for LIN bus transceivers and microcontroller GPIOs connected to external harnesses. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to suppress ISO 7637-2 pulse 1 and pulse 2a transients. Use Value: Clamps 100 V transients to ≤32.4 V within <1 ns, preventing false resets or input-stage damage in 12 V vehicle subsystems. | Use Scenario: Protection of 4–20 mA current-loop transmitter outputs and analog sensor inputs (e.g., RTD, thermocouple) in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional shunt device mounted across signal pair to absorb EFT bursts and cable discharge events. Use Value: Limits voltage excursion to <33 V during 4 kV EFT (IEC 61000-4-4), preserving 16-bit ADC reference stability and measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA-E3/52 (Vishay) | Same SMC package, lower PPPM (600 W), higher VC (32.4 V @ 18.5 A), lower VBR range (22.2–24.5 V) | Not suitable for 3000 W surge events; limited to lower-energy IEC 61000-4-5 Level 2 scenarios | Select only when board space allows larger footprint or when system surge profile is confirmed ≤600 W |
| 1.5KE20CA (ON Semiconductor) | Through-hole DO-201 package, same VWM/VBR, 1500 W PPPM, higher thermal resistance (RthJA = 100 °C/W) | Requires manual insertion or wave soldering; unsuitable for high-density SMT layouts or automated production | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ20CA-E3/52 and 1.5KE20CA, the 3.0C20CA-M3/I delivers triple the peak pulse power in an MSL Level 1 SMT package, enabling compact, high-reliability protection for modern industrial and telecom equipment without compromising surge margin or manufacturability.
Availability
3.0C20CA-M3/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 3.0C20CA-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 and high-power handling.
The 3.0CxxCA-M3 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh industrial, telecom, and automotive environments where sustained surge immunity and SMT manufacturability are critical.
FAQ
What is the breakdown voltage tolerance for the 3.0C20CA-M3/I?
The 3.0C20CA-M3/I has a specified breakdown voltage (VBR) range of 22.2 V minimum to 24.5 V maximum at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This ±5% tolerance ensures consistent clamping onset across production lots while maintaining safe margin above its 20 V stand-off voltage. The 3.0C20CA-M3/I datasheet confirms this range under Electrical Characteristics Table on page 2.
Does the 3.0C20CA-M3/I require polarity-specific PCB layout?
No - the 3.0C20CA-M3/I is a bidirectional TVS diode with symmetric clamping characteristics in both polarities, and its SMC package has no functional polarity marking. However, thermal performance is optimized when mounted per Vishay's recommended pad layout (Document 98266, page 4), and mechanical orientation should ensure uniform solder joint formation on both terminals. The 3.0C20CA-M3/I functions identically regardless of anode/cathode placement in circuit.
What is the maximum peak pulse current the 3.0C20CA-M3/I can handle?
The 3.0C20CA-M3/I supports a maximum peak pulse current (IPPM) of 92.6 A under the 10/1000 μs waveform condition, corresponding to its 3000 W peak pulse power rating and 32.4 V clamping voltage. This value is explicitly listed in the Electrical Characteristics table for the 3.0C20CA-M3/I device row. Derating applies above TA = 25 °C per Figure 2 in the 3.0C20CA-M3/I datasheet.
Is the 3.0C20CA-M3/I compliant with lead-free assembly standards?
Yes - the 3.0C20CA-M3/I carries the "-M3" suffix indicating halogen-free, RoHS-compliant construction with matte tin-plated leads qualified to J-STD-002 and JESD 22-B102 for solderability, and certified to JESD 201 Class 2 for whisker resistance. Its MSL Level 1 rating permits peak reflow temperatures up to 260 °C, fully compatible with lead-free SAC305 processes. This compliance is documented in the Mechanical Data section of the 3.0C20CA-M3/I datasheet.
How does the 3.0C20CA-M3/I perform under repeated surge stress?
The 3.0C20CA-M3/I is rated for non-repetitive surge events per its datasheet, but exhibits stable clamping behavior across multiple 10/1000 μs pulses when allowed to thermally recover between events. Its 4.0 °C/W junction-to-mount thermal resistance and 175 °C maximum junction temperature enable robust duty-cycle resilience in real-world applications like motor drive feedback loops. The 3.0C20CA-M3/I datasheet specifies no degradation in VC or leakage after 1000 pulses under controlled conditions.
3.0C20CA-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):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 92.6A
- 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)
3.0C20CA-M3/I FAQ
1.How can I place an order for 3.0C20CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C20CA-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 3.0C20CA-M3/I reliable?
The price and inventory of 3.0C20CA-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 3.0C20CA-M3/I is usually 5 days.
3.What payment methods are accepted for 3.0C20CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C20CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C20CA-M3/I?
3.0C20CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C20CA-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 3.0C20CA-M3/I?
For technical support, including 3.0C20CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C20CA-M3/I requirements.
6.How does Aetrix verify that 3.0C20CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 3.0C20CA-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 3.0C20CA-M3/I meets industry standards.
7.What is the process for return or replacement of 3.0C20CA-M3/I?
All 3.0C20CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C20CA-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 3.0C20CA-M3/I part is unused and in its original packaging.
Return procedure for 3.0C20CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C20CA-M3/I Tags
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