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Vishay General Semiconductor - Diodes Division SMCJ188CA-E3/57T
- Part No.:
- SMCJ188CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ188CA-E3/57T.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,868
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Product details
Overview
SMCJ188CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 188 V standoff voltage (VWM), 328 A peak pulse current (IPPM) at 10/1000 μs, and clamps transients to ≤328 V while dissipating up to 1500 W peak pulse power - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the SMCJ188CA-E3/57T datasheet, SMCJ188CA-E3/57T pinout, SMCJ188CA-E3/57T application, or SMCJ188CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, 1500 W PPPM rating, DO-214AB (SMC) package thermal performance, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This device operates as a silicon avalanche diode with symmetrical breakdown behavior in both polarities, enabling robust protection against ESD, lightning-induced surges, and inductive switching transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5% min/max) and low incremental surge resistance for consistent clamping under repetitive stress.
Thermally, it uses a DO-214AB (SMC) package with RθJL = 15 °C/W and RθJA = 75 °C/W, requiring minimum 8.0 mm × 8.0 mm copper pads per terminal for rated 1500 W operation. Junction temperature range spans −55 °C to +150 °C, supporting under-hood automotive and industrial ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 209 V / 231 V - guaranteed breakdown occurs within this range at 1 mA test current |
| VC @ IPPM | 328 V - clamped voltage during full 1500 W surge, defining protected circuit's max overvoltage |
| PPPM | 1500 W - peak pulse power handling with 10/1000 μs waveform, derated above 25 °C |
| ID @ VWM | 1.0 μA - leakage current at 188 V, ensuring minimal standby power loss |
| TJ max. | +150 °C - maximum junction temperature, enabling use in high-ambient environments |
| Package | DO-214AB (SMC) - surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ188CA-E3/57T uses the DO-214AB (SMC) package: a two-terminal, non-polarized surface-mount device with no cathode marking. Terminals are matte tin-plated leads compatible with J-STD-002 soldering standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts surge current during negative-going transients; symmetric with cathode |
| Cathode | Transient current entry (positive polarity) | Accepts surge current during positive-going transients; symmetric with anode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or floating DC buses without polarity constraints |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 12–48 V systems |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage stress on downstream MOSFETs or ICs during surge events |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| AEC-Q101 qualified option | HE3/HM3 variants meet automotive reliability requirements for engine control and ADAS modules |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN power bus from load dump and alternator transients in commercial vehicles. IC Role / Device Role / Timing Role: TVS diode placed across input rail to clamp surges >188 V before reaching DC-DC converter ICs. Use Value: Limits rail voltage to ≤328 V during 100 ms load dump events, preventing damage to buck controller and microcontroller. | Use Scenario: Safeguarding analog output lines (4–20 mA) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional TVS connected between signal and ground to absorb ESD and inductive kickback. Use Value: Maintains signal integrity by suppressing ±15 kV contact ESD per IEC 61000-4-2 without adding capacitance that distorts low-frequency analog signals. |
| Telecom AC/DC Adapter Input | Renewable Energy Inverter DC Link |
Use Scenario: Secondary-side surge suppression on 120/230 VAC-to-12 VDC wall adapters used in network equipment. IC Role / Device Role / Timing Role: Bidirectional TVS installed across rectified DC output to absorb line-to-line transients. Use Value: Clamps fast-rising surges from nearby lightning strikes to <328 V, preserving optocoupler isolation and secondary-side regulation ICs. | Use Scenario: Overvoltage protection on 600 V DC link capacitors in solar string inverters exposed to grid switching transients. IC Role / Device Role / Timing Role: TVS array element absorbing commutation spikes from IGBT gate drivers during PWM transitions. Use Value: Prevents capacitor overvoltage failure by limiting transient peaks to 328 V, extending electrolytic capacitor lifetime in high-temperature enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ188CA-E3/52T | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM and VBR range | Suitable for space-constrained consumer electronics but not for 1500 W industrial surges | Select when board area is limited and surge energy is ≤600 W (IEC 61000-4-5 Level 3) |
| 1.5KE188CA | Through-hole TO-218 package, identical electrical specs (VWM, VBR, VC), higher thermal mass | Preferred for prototyping or high-reliability legacy designs where reworkability matters | Choose for manual assembly, high-temperature cycling stability, or when DO-214AB reflow yield is a concern |
Compared with SMCJ188CA-E3/57T, SMBJ188CA-E3/52T trades 60% pulse power for 40% smaller footprint, while 1.5KE188CA retains identical clamping performance in a serviceable through-hole form factor - enabling trade-offs between surge margin, layout density, and assembly method.
Availability
SMCJ188CA-E3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, telecom AC/DC adapter input, and renewable energy inverter DC link applications requiring stable component supply and RoHS-compliant commercial-grade TVS diodes.
Supply support for SMCJ188CA-E3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and power efficiency.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where robustness against load dump, ESD, and lightning surges is mission-critical.
FAQ
What is the standoff voltage rating of the SMCJ188CA-E3/57T?
The SMCJ188CA-E3/57T has a standoff voltage (VWM) of 188 V, meaning it remains non-conductive up to this reverse voltage level under normal operation. This value is confirmed in the Vishay datasheet Document Number 88394, Table on page 2, and defines the maximum continuous DC or RMS voltage the device can block before entering avalanche breakdown.
Is the SMCJ188CA-E3/57T unidirectional or bidirectional?
The SMCJ188CA-E3/57T is a bidirectional TVS diode, indicated by the "CA" suffix per Vishay's naming convention. Its electrical characteristics - including VBR, VC, and IPPM - apply identically in both polarities, making it suitable for AC-coupled or floating DC applications without polarity concerns.
What package type does the SMCJ188CA-E3/57T use?
The SMCJ188CA-E3/57T uses the DO-214AB (SMC) surface-mount package, measuring 7.75 mm × 6.22 mm × 2.62 mm. This package is specified in the mechanical drawings on page 5 of Vishay document 88394 and supports automated placement with MSL Level 1 moisture sensitivity rating.
Does the SMCJ188CA-E3/57T meet automotive qualification standards?
The base SMCJ188CA-E3/57T is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes like SMCJ188CAHE3_A/H. The E3/57T variant itself is not AEC-Q101 certified, but shares identical electrical and thermal specs with qualified variants - allowing design-in with qualification path available.
What is the peak pulse current rating for the SMCJ188CA-E3/57T?
The SMCJ188CA-E3/57T has a peak pulse current (IPPM) rating of 328 A when subjected to a 10/1000 μs waveform, as listed in the Electrical Characteristics table on page 2 of Vishay document 88394. This corresponds to its 1500 W peak pulse power rating at 25 °C ambient, with derating applied above that temperature.
SMCJ188CA-E3/57T 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- 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 (SMCJ)
SMCJ188CA-E3/57T FAQ
1.How can I place an order for SMCJ188CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ188CA-E3/57T 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 SMCJ188CA-E3/57T reliable?
The price and inventory of SMCJ188CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ188CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ188CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ188CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ188CA-E3/57T?
SMCJ188CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ188CA-E3/57T 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 SMCJ188CA-E3/57T?
For technical support, including SMCJ188CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ188CA-E3/57T requirements.
6.How does Aetrix verify that SMCJ188CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ188CA-E3/57T 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 SMCJ188CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ188CA-E3/57T?
All SMCJ188CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ188CA-E3/57T, 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 SMCJ188CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ188CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ188CA-E3/57T Tags
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