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Vishay General Semiconductor - Diodes Division SMCJ13AHE3/9AT
- Part No.:
- SMCJ13AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13AHE3/9AT.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,149
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Product details
Overview
SMCJ13AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 13 V stand-off voltage (VWM), 21.5 V maximum clamping voltage (VC) at 69.8 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), commonly deployed in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ13AHE3/9AT datasheet, SMCJ13AHE3/9AT pinout, SMCJ13AHE3/9AT application, or SMCJ13AHE3/9AT equivalent, key selection criteria include clamping performance under 10/1000 µs surge, AEC-Q101 qualification status, unidirectional polarity marking, and thermal resistance (RθJA = 75 °C/W) for board-level thermal design.
Technical Context
The SMCJ13AHE3/9AT operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response to transients. Its breakdown voltage (VBR) is specified at 14.4–15.9 V (IT = 1 mA), and it maintains low incremental surge resistance to ensure stable clamping across repetitive surges.
Designed for surface-mount automated placement, it meets MSL level 1 per J-STD-020 (peak reflow 260 °C), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and supports operation from –55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 14.4 V / 15.9 V at IT = 1 mA - Ensures reliable avalanche initiation within defined tolerance |
| VC @ IPPM | 21.5 V at 69.8 A (10/1000 µs) - Limits protected circuit voltage during worst-case surge |
| PPPM | 1500 W - Sustains high-energy transients without failure, e.g., ISO 7637-2 Pulse 1/2a/5a |
| IFSM | 200 A (8.3 ms half-sine) - Withstands short-duration inrush or fault currents in power inputs |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-ambient industrial settings |
| RθJA | 75 °C/W - Requires minimum 8.0 mm × 8.0 mm copper pad per terminal for full power derating |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, unidirectional polarity marked by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for reverse-biased TVS operation | Connected to protected line (e.g., 12 V rail); clamps when voltage exceeds VWM relative to ground |
| Anode (non-banded end) | Reference/ground return path | Must be tied to system ground plane with low-inductance layout to minimize clamping overshoot |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Glass-passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| Low Rsurge | Minimizes VC rise under high IPPM, critical for protecting 3.3 V/5 V logic interfaces downstream |
| MSL Level 1 | Enables standard SMT reflow without pre-baking, reducing manufacturing complexity and cost |
| RoHS-compliant & halogen-free option available | Meets global environmental compliance mandates (IEC 61249-2-21) without compromising surge capability |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply input of engine control unit (ECU) against load dump (ISO 7637-2 Pulse 5a) and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp transients before LDO or DC/DC stage. Use Value: Clamps to ≤21.5 V at 69.8 A, preventing regulator overvoltage shutdown and ensuring uninterrupted microcontroller operation. | Use Scenario: Safeguarding analog output (4–20 mA) or CAN transceiver I/O pins from ESD and cable discharge events in factory automation sensors. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting fast transients (<1 ns rise time) to chassis ground. Use Value: Sub-ns response and low VC preserve signal integrity while meeting IEC 61000-4-2 Level 4 (±15 kV air) immunity requirements. |
| Consumer Power Adapter Input | Telecom DC Feeder Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD or laptop chargers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on +VOUT rail, coordinated with primary-side OVP and secondary-side crowbar circuits. Use Value: 1500 W PPPM handles multiple 10/1000 µs surges per UL 1449 without degradation, supporting 5-year field life. | Use Scenario: Protecting -48 V DC feeder lines in telecom base station power distribution against induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional TVS installed between feeder line and telecom shelf ground, rated for continuous -48 V bias. Use Value: 13 V VWM allows safe operation with negative rail referencing; 21.5 V VC ensures downstream DC/DC converters remain within absolute max ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC13 | Lower PPPM (600 W), same VWM/VC range, SOD-123FL package | Limited to lower-energy surges (e.g., IEC 61000-4-5 0.5 J); unsuitable for ISO 7637-2 Pulse 5a | Select when space-constrained PCB layout prioritizes footprint over surge margin |
| 1.5KE13A | Same electrical specs but DO-201AE axial package; higher RθJA (100 °C/W) | Requires through-hole assembly; less suitable for automated SMT lines and high-density boards | Choose only for legacy designs or prototyping where reflow compatibility is not required |
Compared with SAC13 and 1.5KE13A, the SMCJ13AHE3/9AT delivers superior surge handling (1500 W vs. 600 W/1500 W), SMT manufacturability, and automotive qualification-making it the preferred choice for production-grade automotive and industrial systems requiring AEC-Q101 compliance and high-reliability clamping.
Availability
SMCJ13AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial sensor interface hardening, and telecom DC feeder surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ13AHE3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, low clamping voltage, and consistent surge endurance are mandatory.
FAQ
What is the clamping voltage of the SMCJ13AHE3/9AT under a 10/1000 µs surge?
The SMCJ13AHE3/9AT has a maximum clamping voltage (VC) 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 per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024 (Document Number: 88394). The SMCJ13AHE3/9AT achieves this clamping performance while maintaining low incremental surge resistance, making it suitable for protecting sensitive downstream ICs.
Is the SMCJ13AHE3/9AT qualified for automotive applications?
Yes, the SMCJ13AHE3/9AT carries AEC-Q101 qualification, as indicated by the "HE3" suffix in its part number. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. The SMCJ13AHE3/9AT is explicitly intended for automotive power rail and signal line protection, such as in body control modules and ADAS sensor interfaces where reliability under extended temperature and vibration is critical.
What does the "9AT" suffix indicate in SMCJ13AHE3/9AT?
"9AT" denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This format supports high-volume automated SMT placement and is compatible with standard pick-and-place equipment. The "HE3" portion confirms RoHS-compliance and AEC-Q101 qualification, while "9AT" specifies the delivery mode-distinct from "57T" (7-inch reel, 850 units) or "H"/"I" variants used in different tape widths or quantities.
How does the SMCJ13AHE3/9AT differ from bidirectional versions like SMCJ13CA?
The SMCJ13AHE3/9AT is unidirectional, meaning it conducts only in reverse bias (cathode-to-anode) and blocks forward current up to ~3.5 V, whereas SMCJ13CA is bidirectional and symmetrical-clamping in both polarities. The unidirectional SMCJ13AHE3/9AT offers lower leakage at VWM (1.0 µA vs. 2.0 µA for CA types) and is preferred for DC power rail protection. Bidirectional variants are reserved for AC-coupled or floating signal lines like RS-485 or CAN where polarity reversal may occur.
What is the thermal resistance and recommended PCB layout for the SMCJ13AHE3/9AT?
The SMCJ13AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To achieve rated 1500 W pulse power, each pad must be solid, thermally connected to internal ground/power planes via ≥2 vias, and avoid solder mask over copper. The device's SMC (DO-214AB) outline requires strict adherence to Vishay's mounting pad layout (Document 88394, page 5) to prevent solder bridging and ensure mechanical reliability during thermal cycling.
SMCJ13AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ13AHE3/9AT FAQ
1.How can I place an order for SMCJ13AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13AHE3/9AT 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 SMCJ13AHE3/9AT reliable?
The price and inventory of SMCJ13AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ13AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13AHE3/9AT?
SMCJ13AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13AHE3/9AT 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 SMCJ13AHE3/9AT?
For technical support, including SMCJ13AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13AHE3/9AT requirements.
6.How does Aetrix verify that SMCJ13AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ13AHE3/9AT 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 SMCJ13AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ13AHE3/9AT?
All SMCJ13AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13AHE3/9AT, 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 SMCJ13AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ13AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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