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Vishay General Semiconductor - Diodes Division SMCJ13CAHE3/57T
- Part No.:
- SMCJ13CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13CAHE3/57T.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,561
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Product details
Overview
SMCJ13CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 13 V standoff voltage (VWM), 21.5 V maximum clamping voltage at 69.8 A peak pulse current (10/1000 μs), and 1500 W peak pulse power dissipation - ideal for safeguarding automotive sensor signal lines, industrial I/O ports, and DC power rails against ESD and inductive switching transients.
For engineers reviewing the SMCJ13CAHE3/57T datasheet, SMCJ13CAHE3/57T pinout, SMCJ13CAHE3/57T application, or SMCJ13CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification for automotive use, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pad layouts per JEDEC DO-214AB footprint.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (<1 μA leakage at 13 V), but triggers into low-impedance conduction when reverse (or forward, in bidirectional mode) voltage exceeds its breakdown range (14.4–15.9 V at 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
The SMCJ13CAHE3/57T is rated for 150 °C maximum junction temperature, exhibits +0.084 %/°C temperature coefficient of VBR, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for high-reliability surface-mount assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - guaranteed avalanche initiation window; ensures consistent turn-on across production lots |
| VC @ IPPM | 21.5 V at 69.8 A (10/1000 μs) - peak clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - ability to absorb high-energy transients without failure; enables protection against ISO 7637-2 Pulse 1/2a/5a |
| ID @ VWM | 1.0 μA - ultra-low leakage preserves signal integrity and battery life in always-on systems |
| TJ max. | +150 °C - supports operation in under-hood automotive environments and industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD HBM/MM |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as input/output for transient energy; symmetric clamping in both directions |
| Terminal 2 | Anode / Cathode (bidirectional) | Paired terminal completing the bidirectional path; no functional distinction between leads |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, ADAS sensors, and body controllers |
| Glass-passivated junction | Ensures stable, repeatable avalanche performance and long-term reliability under repeated surge stress |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during suppression - critical for protecting 12 V logic interfaces and CAN transceivers |
| MSL Level 1 rating | Permits direct placement on PCBs without baking or special handling prior to reflow soldering |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector entry point to clamp transients before reaching ADC front-end or signal conditioner IC. Use Value: Maintains <13 V working voltage margin while limiting clamped surge to ≤21.5 V - preserving sensor accuracy and preventing latch-up in downstream op-amps. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controller (PLC) modules subjected to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each isolated input channel, mounted adjacent to optocoupler input pins. Use Value: Absorbs 1500 W pulses without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements. |
| DC Power Rail Protection | USB/Serial Interface Protection |
|
Use Scenario: Guarding 12 V/24 V supply rails feeding microcontrollers and communication ICs in telematics gateways. IC Role / Device Role / Timing Role: Parallel-connected TVS across rail-to-ground to divert load-dump energy (ISO 7637-2 Pulse 5a) away from LDOs and PMICs. Use Value: Withstands 200 A non-repetitive forward surge (IFSM), ensuring survival during severe automotive load dump events. |
Use Scenario: Protecting RS-485 transceiver data lines in factory automation networks prone to ground potential differences and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential-mode across A/B bus lines to suppress common-mode and differential-mode transients. Use Value: Symmetric clamping eliminates need for dual unidirectional devices - reduces BOM count and PCB area while maintaining ±21.5 V clamping limit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC13CA | Same VWM (13 V) and VC (21.5 V), but lower PPPM (1000 W); smaller SOD-123FL package | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-current inductive spikes | Select when space-constrained and surge energy is ≤1000 W; verify thermal derating for ambient >85 °C |
| SMCJ13CAHM3/57T | Identical electrical specs and AEC-Q101 qualification; halogen-free molding compound instead of standard RoHS-compliant | Required only where halogen-free compliance (IEC 61249-2-21) is mandated in final product certification | Choose for green manufacturing programs; otherwise SMCJ13CAHE3/57T offers identical protection performance |
Compared with SAC13CA and SMCJ13CAHM3/57T, the SMCJ13CAHE3/57T delivers full 1500 W surge capability in a proven automotive-grade SMC package, making it the preferred choice for high-energy transient environments where reliability and legacy footprint compatibility are critical.
Availability
SMCJ13CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and DC power distribution units requiring stable component supply with AEC-Q101 assurance and long-term lifecycle support.
Supply support for SMCJ13CAHE3/57T 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom infrastructure where robustness, consistency, and regulatory compliance are non-negotiable.
FAQ
What is the clamping voltage of the SMCJ13CAHE3/57T under a 10/1000 µs surge?
The SMCJ13CAHE3/57T clamps to a maximum of 21.5 V when subjected to its rated peak pulse current of 69.8 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 8.0 mm × 8.0 mm copper pads), and represents the highest voltage the protected circuit will experience during such a transient event. The SMCJ13CAHE3/57T maintains this performance across its qualified operating temperature range.
Is the SMCJ13CAHE3/57T suitable for automotive applications?
Yes, the SMCJ13CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and validation across temperature cycling, humidity testing, and surge endurance - all documented in Vishay's qualification report for the HE3 suffix. The SMCJ13CAHE3/57T is commonly deployed in engine control units, ADAS camera modules, and body electronics.
Does the SMCJ13CAHE3/57T have polarity markings?
No, the SMCJ13CAHE3/57T is a bidirectional TVS diode and carries no polarity marking on its SMC (DO-214AB) package. Both terminals are functionally identical, allowing it to suppress transients regardless of voltage polarity - a key advantage for protecting AC-coupled signals, differential buses like RS-485, or floating power domains. This distinguishes it from unidirectional variants like SMCJ13AHE3/57T, which feature a cathode band.
What is the maximum operating temperature for the SMCJ13CAHE3/57T?
The SMCJ13CAHE3/57T has a maximum junction temperature (TJ max.) of +150 °C, enabling reliable operation in high-ambient environments such as automotive engine compartments or industrial control cabinets. Its thermal resistance from junction to lead (RθJL) is 15 °C/W, supporting effective heat transfer to PCB copper when mounted per recommended pad layout. Derating curves in the datasheet confirm usable power dissipation down to -55 °C ambient.
How does the SMCJ13CAHE3/57T differ from the unidirectional SMCJ13AHE3/57T?
The SMCJ13CAHE3/57T is bidirectional with symmetrical clamping in both polarities, while the SMCJ13AHE3/57T is unidirectional and conducts only in reverse bias (cathode-to-anode). Electrically, the SMCJ13CAHE3/57T has identical VWM (13 V), VBR (14.4–15.9 V), and VC (21.5 V), but lacks a cathode band marking. Functionally, the SMCJ13CAHE3/57T replaces two unidirectional devices in AC or floating applications - simplifying layout and reducing BOM count without sacrificing protection level.
SMCJ13CAHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 69.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ13CAHE3/57T FAQ
1.How can I place an order for SMCJ13CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13CAHE3/57T 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 SMCJ13CAHE3/57T reliable?
The price and inventory of SMCJ13CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ13CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13CAHE3/57T?
SMCJ13CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13CAHE3/57T 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 SMCJ13CAHE3/57T?
For technical support, including SMCJ13CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ13CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ13CAHE3/57T 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 SMCJ13CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ13CAHE3/57T?
All SMCJ13CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13CAHE3/57T, 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 SMCJ13CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ13CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ13CAHE3/57T Tags
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