My Inquiry
My Account
Vishay 3.0C12CA-M3/I
- Part No.:
- 3.0C12CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0C12CA-M3/I.pdf
- Description:
- 3KW, 12V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3.0C12CA-M3 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 13.3–14.7 V breakdown voltage (VBR), 12 V stand-off voltage (VWM), 19.9 V max clamping voltage (VC) at 151 A peak pulse current (IPPM), and 3000 W peak pulse power (10/1000 μs). It protects MOSFETs and sensor interfaces in industrial power supplies.
For engineers reviewing the 3.0C12CA-M3 datasheet, 3.0C12CA-M3 pinout, 3.0C12CA-M3 application, or 3.0C12CA-M3 equivalent, this page delivers verified electrical specs, JEDEC-compliant thermal data, IEC 61000-4-2 ESD immunity (30 kV contact/air), and real-world protection use cases - all validated against Vishay Document #98266 (Rev. 09-Jan-2024).
Technical Context
This TVS diode operates bidirectionally with low incremental surge resistance and sub-nanosecond response time, enabling effective suppression of fast-rising transients from inductive switching and lightning surges. Its 175 °C maximum junction temperature and MSL Level 1 rating support reflow compatibility up to 260 °C peak.
The device meets IEC 61000-4-2 (30 kV HBM contact/air) and IEC 61000-4-5 surge immunity standards. Thermal resistance is 90 °C/W (junction-to-ambient) and 4.0 °C/W (junction-to-mount), confirming suitability for high-power transient handling on FR4 PCBs with standard 2 oz copper footprints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 13.3 V / 14.7 V - Ensures reliable turn-on above circuit operating voltage while avoiding false triggering during normal operation. |
| VWM | 12 V - Maximum continuous reverse voltage before leakage exceeds 5 μA; matches 12 V rail protection requirements. |
| VC @ IPPM | 19.9 V at 151 A (10/1000 μs) - Clamps induced surges to safe levels for downstream 20 V-rated ICs and MOSFETs. |
| PPPM | 3000 W (10/1000 μs) - Sustains high-energy transients common in motor drives and industrial power inputs. |
| IPPM | 151 A (10/1000 μs) - Supports robust surge current handling without degradation under repeated 1000 μs pulses. |
| TJmax | 175 °C - Enables operation in high-temperature environments such as enclosed power converters and automotive under-hood modules. |
| ESD Rating | 30 kV per IEC 61000-4-2 (contact & air) - Provides system-level ESD robustness without external shielding or filtering. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads, MSL Level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Transient current sink (bidirectional) | No polarity marking on bidirectional variants; terminals are functionally symmetric for AC line or differential signal protection. |
| Anode | Transient current return path | Both terminals conduct equally during positive/negative transients; no DC bias dependency in clamping behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., RS-485), and ungrounded sensor outputs without polarity concerns. |
| 3000 W peak pulse power (10/1000 μs) | Handles high-energy transients from relay coil flyback or transformer coupling in industrial control cabinets. |
| 19.9 V clamping at 151 A | Limits voltage stress on 20 V max-rated gate drivers and microcontroller I/O pins during surge events. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling protocols. |
| 30 kV IEC 61000-4-2 ESD immunity | Eliminates need for additional ESD protection stages in human-accessible ports (e.g., front-panel connectors). |
Applications
| Industrial Motor Drive Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Suppresses inductive kickback from solenoid valves and brushed DC motors in PLC output stages. IC Role / Device Role / Timing Role: Primary transient clamp placed across 24 V DC supply rails upstream of DC-DC converters and logic controllers. Use Value: Prevents latch-up and gate oxide damage in 20 V-rated MOSFET half-bridges by limiting surge voltage to ≤19.9 V at 151 A. |
Use Scenario: Protects LIN bus transceivers and window lift motor drivers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS mounted at connector entry point to absorb ±100 V/50 ms load dump transients per ISO 7637-2. Use Value: Maintains signal integrity on 12 V LIN lines by clamping to <20 V within nanoseconds, preserving transceiver functionality. |
| Telecom Power Input Stage | Consumer Appliance Sensor Interface |
|
Use Scenario: Shields AC/DC adapter secondary-side 12 V outputs from lightning-induced surges entering via Ethernet or PoE lines. IC Role / Device Role / Timing Role: Secondary-side TVS placed between rectifier output and bulk capacitor to limit transient propagation into DC-DC regulation stage. Use Value: Withstands 3000 W surges without degradation, ensuring >100,000 surge cycles in outdoor telecom equipment. |
Use Scenario: Guards temperature and humidity sensor analog outputs (e.g., I²C lines) against ESD events during user interaction or cleaning. IC Role / Device Role / Timing Role: Localized TVS mounted directly at sensor connector to shunt 30 kV HBM discharges before reaching ADC input pins. Use Value: Eliminates need for series resistors or RC filters, preserving signal bandwidth while meeting IEC 61000-4-2 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12CA | Lower PPPM (600 W), smaller SMB package, VC = 19.9 V at 30.2 A - same clamping but lower surge capacity. | Suitable only for low-energy signal-line protection; insufficient for 24 V power rail transients. | Select when board space is constrained and surge energy is limited to <100 mJ. |
| SMCJ12A | Unidirectional variant, identical SMC package and VBR/VC, but requires correct polarity placement and cannot protect AC signals. | Applicable only in DC-only circuits with known polarity; unsuitable for RS-485 or transformer-coupled interfaces. | Choose only if system ground reference is stable and reverse-voltage risk is absent. |
Compared with SMBJ12CA and SMCJ12A, the 3.0C12CA-M3 delivers 5× higher peak pulse power in the same SMC footprint and supports bidirectional surge paths - making it the sole option for robust 24 V industrial power rail and differential bus protection where polarity is undefined or alternating.
Availability
3.0C12CA-M3 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power inputs, and consumer appliance sensor interfaces requiring stable component supply across long production lifecycles.
Supply support for 3.0C12CA-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 3.0C12CA-M3 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh electromagnetic environments - including factory automation, vehicle electronics, and infrastructure power systems.
FAQ
What is the breakdown voltage range of the 3.0C12CA-M3?
The 3.0C12CA-M3 has a guaranteed breakdown voltage (VBR) range of 13.3 V to 14.7 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This ensures consistent turn-on behavior across production lots and enables precise coordination with 12 V system rails without premature conduction during normal operation.
Does the 3.0C12CA-M3 support lead-free reflow soldering?
Yes, the 3.0C12CA-M3 is rated MSL Level 1 and qualified for lead-free reflow with a maximum peak temperature of 260 °C, per J-STD-020. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, and the -M3 suffix confirms passing JESD 201 Class 2 whisker testing - ensuring long-term solder joint reliability.
How does the 3.0C12CA-M3 perform under repeated surge stress?
The 3.0C12CA-M3 maintains stable clamping performance over ≥1000 repetitive 10/1000 μs surges at rated IPPM, as validated in Vishay's accelerated life testing. Its low incremental surge resistance and 175 °C TJmax prevent thermal runaway during burst-mode transients common in motor control and power supply applications.
Can the 3.0C12CA-M3 be used for RS-485 bus protection?
Yes, the 3.0C12CA-M3 is ideal for bidirectional RS-485 bus protection due to its symmetrical clamping, 19.9 V VC at 151 A, and ability to handle ±30 kV ESD per IEC 61000-4-2. Its SMC package allows direct placement across A/B lines without polarity constraints, preserving signal integrity up to 20 Mbps.
What is the thermal resistance of the 3.0C12CA-M3 in standard mounting?
When mounted on a standard FR4 PCB with 2 oz copper per JEDEC 51-2A, the 3.0C12CA-M3 exhibits RthJA = 90 °C/W. Its RthJM = 4.0 °C/W (per JEDEC 51-14 TDIM) confirms efficient heat transfer to the mounting pad - critical for sustaining multiple high-energy surges without junction overheating.
3.0C12CA-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):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 151A
- 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)
3.0C12CA-M3/I FAQ
1.How can I place an order for 3.0C12CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0C12CA-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 3.0C12CA-M3/I reliable?
The price and inventory of 3.0C12CA-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 3.0C12CA-M3/I is usually 5 days.
3.What payment methods are accepted for 3.0C12CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0C12CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0C12CA-M3/I?
3.0C12CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0C12CA-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 3.0C12CA-M3/I?
For technical support, including 3.0C12CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0C12CA-M3/I requirements.
6.How does Aetrix verify that 3.0C12CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 3.0C12CA-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 3.0C12CA-M3/I meets industry standards.
7.What is the process for return or replacement of 3.0C12CA-M3/I?
All 3.0C12CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 3.0C12CA-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 3.0C12CA-M3/I part is unused and in its original packaging.
Return procedure for 3.0C12CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0C12CA-M3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
