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Vishay General Semiconductor - Diodes Division SMCJ160A-M3/9AT
- Part No.:
- SMCJ160A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ160A-M3/9AT.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,170
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Product details
Overview
SMCJ160A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 160 V standoff voltage, 259 V clamping voltage at 5.8 A peak pulse current, and 1500 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines in industrial motor drives and automotive power modules.
For engineers reviewing the SMCJ160A-M3/9AT datasheet, SMCJ160A-M3/9AT pinout, SMCJ160A-M3/9AT application, or SMCJ160A-M3/9AT equivalent, key selection criteria include unidirectional polarity, 160 V stand-off voltage, 259 V clamping under 10/1000 µs surge, halogen-free RoHS compliance (M3 suffix), and SMC package thermal performance with RθJA = 75 °C/W.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below 160 V reverse stand-off voltage (VWM) and rapidly transitions to low-impedance conduction above its 178–197 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable avalanche behavior and fast response time (<1 ns).
It is rated for 1500 W peak pulse power (10/1000 µs waveform), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and maintains operation across -55 °C to +150 °C junction temperature range - enabling use in harsh environments without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VBR min/max | 178 V / 197 V at 1 mA - Confirmed breakdown threshold defining reliable turn-on margin |
| VC @ IPPM | 259 V at 5.8 A - Clamped voltage during full 1500 W surge, limiting downstream stress |
| PPPM | 1500 W - Peak transient energy absorption capability per 10/1000 µs standard waveform |
| IFSM | 200 A - Single half-sine surge current handling (8.3 ms), critical for inductive load switching |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive or industrial enclosures |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on recommended 8 mm × 8 mm copper pads |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads, MSL Level 1 (260 °C reflow peak), polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for reverse-biased clamping | Connects to protected line; conducts surge current to ground when VLINE > VBR |
| Anode | Reference/ground return path | Must be tied to low-impedance system ground to complete clamping loop and limit VC |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V–48 V DC rails |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, preserving safe margin below IC absolute maximum ratings |
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and temperature cycling |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for automotive and industrial OEM production |
| MSL Level 1 moisture sensitivity | Allows standard SMT assembly without dry-pack or baking, reducing manufacturing cost and risk |
Applications
| Industrial Motor Drives | Automotive Power Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O against back-EMF spikes from brushed DC motors and solenoids. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between gate driver output and ground, triggered within <1 ns of overvoltage event. Use Value: Limits gate-source voltage to ≤259 V, preventing MOSFET destruction during 100 A inductive turn-off events. | Use Scenario: Surge suppression on 12 V battery rail inputs to body control modules (BCMs) exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary front-end TVS in series with fuse and LC filter, absorbing up to 1500 W for 100 ms per ISO 7637-2 Pulse 5a. Use Value: Withstands 35 V/100 ms load dump pulses while maintaining VC below 259 V, protecting downstream PMICs and CAN transceivers. |
| Telecom Power Supplies | Sensor Signal Conditioning |
Use Scenario: Input-stage protection for AC/DC adapters and PoE injectors subjected to lightning-induced surges on primary-side rectifier outputs. IC Role / Device Role / Timing Role: Secondary-side TVS on DC bus after bridge rectifier, clamping transients from transformer coupling or line faults. Use Value: 1500 W rating handles combined common-mode and differential-mode surges per IEC 61000-4-5, ensuring no latch-up in downstream DC/DC controllers. | Use Scenario: ESD and surge protection for analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed directly at connector interface, shunting transients before signal conditioning op-amps. Use Value: 1 µA leakage at 160 V ensures minimal offset error in 24-bit precision measurement paths, while 259 V clamping prevents ADC input damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ160A-M3/9AT | Lower PPPM (400 W), smaller SMA package, higher RθJA (110 °C/W) | Not suitable for 1500 W surge events; limited to low-energy ESD or secondary-side protection | Select only when space constraints prohibit SMC and surge energy is ≤400 W |
| SMCJ160CA-M3/9AT | Bidirectional variant; identical VWM, VBR, VC, and PPPM but symmetric clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal occurs (e.g., RS-485, audio) | Choose bidirectional version only when protected node lacks defined DC bias or experiences voltage reversals |
Compared with SMAJ160A-M3/9AT and SMCJ160CA-M3/9AT, the SMCJ160A-M3/9AT provides optimal balance of high-energy clamping, thermal robustness in SMC package, and unidirectional polarity - making it the preferred choice for DC power rail and single-polarity signal line protection where 1500 W surge immunity is mandatory.
Availability
SMCJ160A-M3/9AT is available at Aetrix Electronics and suitable for industrial motor drives, automotive power modules, telecom power supplies, and sensor signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ160A-M3/9AT 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 devices, and optoelectronics with emphasis on reliability, ruggedness, and application-specific qualification.
The SMCJ series is engineered for high-power transient suppression in demanding environments - targeting automotive, industrial, and telecom systems where sustained surge immunity and AEC-Q101 readiness (via HE3/HM3 variants) are critical design requirements.
FAQ
What is the clamping voltage of SMCJ160A-M3/9AT at its rated peak pulse current?
The SMCJ160A-M3/9AT has a maximum clamping voltage (VC) of 259 V when subjected to its rated peak pulse current of 5.8 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during a full 1500 W transient event. The SMCJ160A-M3/9AT maintains this clamping performance across its specified operating temperature range.
Is SMCJ160A-M3/9AT suitable for automotive applications?
Yes, the SMCJ160A-M3/9AT is halogen-free and RoHS-compliant (M3 suffix), and the same die is AEC-Q101 qualified in HE3/HM3 variants. While the M3 suffix itself denotes commercial-grade qualification, its construction - including glass-passivated junction, 150 °C TJ max, and robust surge ratings - aligns with automotive subsystem requirements such as body electronics and power distribution. For certified automotive use, specify SMCJ160A-HM3/9AT instead of SMCJ160A-M3/9AT.
What does the "M3" suffix indicate in SMCJ160A-M3/9AT?
The "M3" suffix in SMCJ160A-M3/9AT specifies halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD 22-B102 solderability and JESD 201 Class 2 whisker resistance. It also indicates commercial-grade qualification (non-AEC-Q101), distinguishing it from HE3 (RoHS + AEC-Q101) and HM3 (halogen-free + RoHS + AEC-Q101) variants. The "9AT" denotes 13-inch tape-and-reel packaging with 3500 units per reel.
How does the SMCJ160A-M3/9AT differ from bidirectional SMCJ160CA-M3/9AT?
The SMCJ160A-M3/9AT is unidirectional, with cathode marked by a band and conducting only during positive transients relative to its anode; the SMCJ160CA-M3/9AT is bidirectional, symmetrical, and unmarked, clamping in both polarities. Both share identical VWM (160 V), VBR, VC (259 V), and PPPM (1500 W), but the unidirectional SMCJ160A-M3/9AT offers lower leakage at DC bias and is preferred for fixed-polarity DC rails, whereas the CA version suits AC or floating nodes.
What PCB layout guidance applies to SMCJ160A-M3/9AT for optimal thermal and surge performance?
For optimal performance, mount the SMCJ160A-M3/9AT on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Use short, wide traces to ground to minimize inductance, avoid thermal relief on pads to maximize heat dissipation, and ensure the cathode band orientation matches schematic polarity. The SMCJ160A-M3/9AT's RθJA of 75 °C/W assumes this pad layout - deviation increases junction temperature and reduces surge endurance.
SMCJ160A-M3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ160A-M3/9AT FAQ
1.How can I place an order for SMCJ160A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ160A-M3/9AT 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 SMCJ160A-M3/9AT reliable?
The price and inventory of SMCJ160A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ160A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ160A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ160A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ160A-M3/9AT?
SMCJ160A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ160A-M3/9AT 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 SMCJ160A-M3/9AT?
For technical support, including SMCJ160A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ160A-M3/9AT requirements.
6.How does Aetrix verify that SMCJ160A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ160A-M3/9AT 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 SMCJ160A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ160A-M3/9AT?
All SMCJ160A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ160A-M3/9AT, 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 SMCJ160A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCJ160A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ160A-M3/9AT Tags
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