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Vishay General Semiconductor - Diodes Division SMCJ5.0AHE3/57T
- Part No.:
- SMCJ5.0AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0AHE3/57T.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,464
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Product details
Overview
SMCJ5.0AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive DC power rails and signal lines. It features a 5.0 V stand-off voltage (VWM), 6.40–7.07 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), 163 A peak pulse current (IPPM), and clamps transients to ≤9.2 V at rated surge. It is widely deployed in automotive ECUs and industrial power supplies where AEC-Q101-qualified surge resilience is required.
For engineers reviewing the SMCJ5.0AHE3/57T datasheet, SMCJ5.0AHE3/57T pinout, SMCJ5.0AHE3/57T application, or SMCJ5.0AHE3/57T equivalent, key selection criteria include its 1500 W surge rating, unidirectional polarity with cathode band marking, SMC (DO-214AB) surface-mount package, AEC-Q101 qualification status, and 9.2 V clamping voltage under full 163 A surge - all critical for automotive-grade board-level ESD and load-dump protection.
Technical Context
The SMCJ5.0AHE3/57T operates as a silicon avalanche diode that enters controlled breakdown above its 5.0 V stand-off threshold, diverting transient energy to ground while limiting downstream voltage to ≤9.2 V. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1000 µA at VWM).
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), has matte tin-plated leads compliant with JESD 22-B102, and delivers <1 ns response time to fast-rising transients such as ISO 7637-2 pulse 1 and pulse 3a/b. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (min/max) | 6.40 V / 7.07 V at 10 mA - Confirmed breakdown range ensuring reliable turn-on without premature leakage. |
| VC @ IPPM | ≤9.2 V at 163 A - Clamping voltage under full 10/1000 µs surge; determines maximum stress on protected ICs. |
| PPPM | 1500 W - Peak pulse power handling capacity; enables protection against severe load-dump events. |
| ID @ VWM | ≤1000 µA - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss in always-on circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height. |
Pinout & Package
SMCJ5.0AHE3/57T uses the SMC (DO-214AB) package: a rectangular, molded surface-mount case with two coplanar gull-wing leads. Polarity is marked by a cathode band on the body end; the banded terminal is the cathode (anode is unmarked). Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to ground or low-impedance return path; carries full surge current during clamping. |
| Anode (unmarked end) | Protected line input | Connected to the line being protected (e.g., 5 V supply rail or CAN_H); voltage referenced to cathode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; base code HE3 denotes qualification. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature, low leakage, and high reliability in humid or thermally cycling environments. |
| 1500 W 10/1000 µs rating | Withstands automotive load-dump pulses (ISO 16750-2) and inductive switching surges without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage overshoot during surge events, reducing risk of latch-up or gate oxide damage in downstream MOSFETs/ICs. |
| MSL Level 1 moisture sensitivity | Enables direct placement into reflow without baking; compatible with standard high-volume SMT production lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller power inputs in engine control units exposed to ISO 7637-2 load-dump pulses up to 35 V. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 5 V rail and chassis ground to shunt surge energy away from MCU VDD pins. Use Value: Limits transient voltage to ≤9.2 V, preventing brownout reset or permanent damage during 12 V system load-dump events. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitter outputs) in factory automation sensors subjected to cable ESD and field wiring faults. IC Role / Device Role / Timing Role: Standoff-connected TVS on signal line to ground, activated only during >6.4 V transients. Use Value: Maintains signal integrity below 5.0 V normal operation while clamping fast ESD spikes (IEC 61000-4-2 ±8 kV contact) to non-disruptive levels. |
| DC-DC Converter Input Protection | USB Port VBUS Line Protection |
Use Scenario: Front-end protection for 5 V input of buck converters in telecom power modules facing lightning-induced surges on long input traces. IC Role / Device Role / Timing Role: Primary overvoltage clamp on converter input, coordinated with upstream fuse and downstream ceramic filtering. Use Value: Absorbs 1500 W surge energy without failure, preserving converter enable logic and preventing input capacitor overvoltage rupture. |
Use Scenario: VBUS line protection in USB 2.0 host ports where hot-plug insertion can induce 100 V+ transients from cable inductance. IC Role / Device Role / Timing Role: Unidirectional TVS from VBUS to GND, selected for low capacitance (<200 pF) and fast sub-nanosecond response. Use Value: Clamps VBUS to ≤9.2 V within nanoseconds, avoiding USB PHY reset or enumeration failure during plug-in events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-E3/61T | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W), same VWM/VBR/VC specs. | Suitable for space-constrained consumer PCBs with lower surge exposure; not AEC-Q101 qualified. | Select when cost and size outweigh automotive reliability requirements. |
| SMCJ5.0AHE3_A/H | Identical electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (850 pcs vs. 57T's 850 pcs, same 7″ reel). | No functional difference; identical use cases and board layout. | Choose based on preferred logistics format - both are drop-in replacements electrically and mechanically. |
Compared with SMAJ5.0A-E3/61T, SMCJ5.0AHE3/57T delivers 3.75× higher surge power handling and automotive qualification; compared with SMCJ5.0AHE3_A/H, it shares identical performance and qualification but uses the same 7″ reel delivery mode - making it a direct logistics alternative without design impact.
Availability
SMCJ5.0AHE3/57T is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor nodes, and DC-DC converter front-ends requiring stable component supply with AEC-Q101 assurance and 1500 W transient immunity.
Supply support for SMCJ5.0AHE3/57T 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade validation.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the SMCJ5.0AHE3/57T under full-rated surge current?
The SMCJ5.0AHE3/57T clamps to a maximum of 9.2 V when subjected to its rated 163 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Is the SMCJ5.0AHE3/57T qualified for automotive applications?
Yes, the SMCJ5.0AHE3/57T is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. This certification confirms successful completion of stress tests including high-temperature operating life, temperature cycling, and ESD robustness - making it suitable for under-hood and cabin electronics in passenger vehicles and commercial vehicles.
What does the "57T" suffix mean in SMCJ5.0AHE3/57T?
The "57T" suffix in SMCJ5.0AHE3/57T specifies the packaging configuration: 7-inch diameter plastic tape-and-reel with 850 units per reel. It follows Vishay's ordering convention where "57T" denotes the preferred carrier format, distinct from "9AT" (13-inch reel, 3500 units) or "H"/"I" variants used for different reel sizes or qualification grades.
How does the SMCJ5.0AHE3/57T differ from bidirectional versions like SMCJ5.0CA?
The SMCJ5.0AHE3/57T is unidirectional and features a cathode band for polarity identification; it conducts only in reverse bias above VBR. In contrast, SMCJ5.0CA is bidirectional with no polarity marking and symmetrical clamping in both directions - suited for AC lines or differential buses like RS-485. Their VBR and VC values also differ: SMCJ5.0CA has VBR = 6.40–7.25 V and VC = 11.2 V, versus 6.40–7.07 V and 9.2 V for SMCJ5.0AHE3/57T.
What is the thermal resistance of the SMCJ5.0AHE3/57T in typical PCB mounting?
The SMCJ5.0AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended pad layout - defined as 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes still air and no additional heatsinking; actual thermal performance improves with larger copper areas or internal layer planes.
SMCJ5.0AHE3/57T 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- 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)
SMCJ5.0AHE3/57T FAQ
1.How can I place an order for SMCJ5.0AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0AHE3/57T 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 SMCJ5.0AHE3/57T reliable?
The price and inventory of SMCJ5.0AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ5.0AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0AHE3/57T?
SMCJ5.0AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0AHE3/57T 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 SMCJ5.0AHE3/57T?
For technical support, including SMCJ5.0AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0AHE3/57T requirements.
6.How does Aetrix verify that SMCJ5.0AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0AHE3/57T 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 SMCJ5.0AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ5.0AHE3/57T?
All SMCJ5.0AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0AHE3/57T, 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 SMCJ5.0AHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ5.0AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0AHE3/57T Tags
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