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Vishay General Semiconductor - Diodes Division SMCJ5.0HE3/57T
- Part No.:
- SMCJ5.0HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0HE3/57T.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,498
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Product details
Overview
SMCJ5.0HE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for primary-level overvoltage protection of 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), 9.2 V clamping voltage at 163 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ5.0HE3/57T datasheet, SMCJ5.0HE3/57T pinout, SMCJ5.0HE3/57T application, or SMCJ5.0HE3/57T equivalent, key selection criteria include unidirectional polarity, low clamping ratio (VC/VWM ≈ 1.84), RoHS-compliant matte tin terminals, J-STD-002 solderability, and MSL Level 1 handling per J-STD-020.
Technical Context
The SMCJ5.0HE3/57T operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response to transients. Its unidirectional configuration enables integration into DC-biased circuits where reverse conduction must be blocked-e.g., 5 V supply rails feeding microcontrollers or CAN transceivers.
Clamping performance is specified under standardized 10/1000 µs waveform conditions with derating above TA = 25 °C; thermal resistance is RθJA = 75 °C/W on 8.0 mm × 8.0 mm copper pads. The device meets UL 497B recognition (QVGQ2) and supports surge immunity up to 200 A IFSM (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal DC rail. |
| VBR min/max | 6.40 V / 7.07 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering above VWM with margin against tolerance drift. |
| VC @ IPPM | 9.2 V at 163 A - Clamped voltage during 1500 W transient; limits stress on downstream ICs to safe levels under worst-case surge. |
| PPPM | 1500 W - Peak pulse power rating for 10/1000 µs waveform; defines maximum transient energy absorption capability. |
| ID @ VWM | 1000 µA - Reverse leakage at stand-off voltage; low enough to avoid loading 5 V logic rails or sensor bias networks. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures. |
| Polarity | Unidirectional - Cathode band marked; blocks reverse current while clamping positive transients on anode-to-cathode path. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with molded compound rated UL 94 V-0. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point during positive overvoltage | Connected to line being protected (e.g., 5 V supply input); conducts when voltage exceeds VBR. |
| Cathode | Transient current return path to ground or reference | Connected to system ground or low-impedance return; forms clamping loop with anode during surge event. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime; critical for automotive-grade reliability. |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports ASIL-B system designs. |
| MSL Level 1 rating | Allows unlimited floor life and reflow up to 260 °C peak; eliminates baking requirements for PCB assembly. |
| Low incremental surge resistance | Minimizes VC rise under high-current transients; maintains tight clamping margin for sensitive 5 V logic interfaces. |
| UL 497B recognition (QVGQ2) | Confirms compliance for telecom and industrial surge protection applications requiring third-party safety certification. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V power inputs to engine control units (ECUs), body control modules (BCMs), or infotainment head units from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary TVS clamp placed upstream of LDO regulators or PMICs; absorbs >100 A surges without failure. Use Value: Prevents latch-up or permanent damage to 5 V domain ICs during ISO 7637-2 Pulse 5a events; validated per AEC-Q101 stress profile. | Use Scenario: Safeguarding analog front-ends of pressure, temperature, or position sensors connected to PLC I/O modules or motor drives. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional SMCJ5.0HE3/57T blocks reverse bias while clamping positive spikes on sensor VDD lines. Use Value: Limits sensor supply rail excursion to ≤9.2 V during 1 kV/500 A surge, preserving ADC reference integrity and preventing false readings. |
| USB Port VBUS Line Protection | DC-DC Converter Input Stage Protection |
Use Scenario: Shielding USB 2.0/3.0 host ports from ESD and cable-induced transients on the 5 V VBUS line. IC Role / Device Role / Timing Role: First-line defense before USB power switches or load switches; placed adjacent to connector per layout best practices. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <9.2 V within <1 ns, preventing damage to USB PHY or hub controller. | Use Scenario: Guarding buck converter inputs (e.g., 5 V → 3.3 V) against back-EMF from relay coils or solenoid drivers sharing same supply bus. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor; diverts surge energy away from converter IC's VIN pin and internal MOSFETs. Use Value: Absorbs 1500 W pulses without degradation, maintaining converter uptime in factory automation systems with frequent inductive switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC5.0 | Lower PPPM (500 W), higher VC (11.5 V at 43.5 A), SOD-123FL package | Not suitable for high-energy transients like ISO 7637-2; limited to board-level ESD only | Select SMCJ5.0HE3/57T when 1500 W surge immunity and automotive qualification are mandatory. |
| 1.5KE5.0A | Through-hole DO-201 package, identical VWM/VBR/VC specs but lower thermal mass and no AEC-Q101 | Requires manual insertion or wave solder; unsuitable for automated SMT lines or under-hood deployment | Choose SMCJ5.0HE3/57T for surface-mount production, space-constrained layouts, and automotive-grade reliability. |
Compared with SAC5.0 and 1.5KE5.0A, the SMCJ5.0HE3/57T delivers 3× higher surge power handling, AEC-Q101 validation for automotive use, and optimized thermal performance in SMT assembly-making it the preferred choice for robust 5 V rail protection in volume-manufactured electronics.
Availability
SMCJ5.0HE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, USB power delivery systems, and DC-DC converter input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ5.0HE3/57T 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, precision, and automotive qualification.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where consistent clamping and long-term stability are non-negotiable.
FAQ
What is the polarity configuration of the SMCJ5.0HE3/57T?
The SMCJ5.0HE3/57T is a unidirectional TVS diode, with polarity indicated by a cathode band on the package. It conducts only during positive overvoltage events applied anode-to-cathode and blocks reverse current-making it ideal for protecting DC-biased 5 V rails where reverse conduction must be prevented. This differs from bi-directional variants like SMCJ5.0CA, which lack marking and conduct in both directions.
Does the SMCJ5.0HE3/57T meet automotive qualification standards?
Yes, the SMCJ5.0HE3/57T carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay's documentation. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and ESD (HBM/MM), enabling its use in engine compartments, ADAS modules, and other automotive subsystems requiring certified reliability.
What is the maximum clamping voltage of the SMCJ5.0HE3/57T under surge conditions?
The SMCJ5.0HE3/57T clamps to a maximum of 9.2 V at 163 A peak pulse current (IPPM), measured using the standard 10/1000 µs waveform. This clamping voltage is guaranteed across temperature and lifetime, ensuring downstream 5 V ICs remain within absolute maximum ratings even during severe transients such as ISO 7637-2 Pulse 5a.
How does the SMCJ5.0HE3/57T differ from the base SMCJ5.0A-E3/57T variant?
The SMCJ5.0HE3/57T differs from SMCJ5.0A-E3/57T solely in qualification level: HE3 denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 indicates commercial-grade RoHS compliance only. All electrical parameters-including VWM, VBR, VC, and PPPM-are identical between the two variants.
What PCB pad layout is recommended for optimal thermal performance of the SMCJ5.0HE3/57T?
Vishay specifies mounting the SMCJ5.0HE3/57T on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve the published RθJA of 75 °C/W. Larger or thermally connected copper areas further reduce junction temperature during repeated surges-critical for applications involving frequent load switching or high ambient temperatures.
SMCJ5.0HE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 156.3A
- 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)
SMCJ5.0HE3/57T FAQ
1.How can I place an order for SMCJ5.0HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0HE3/57T 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 SMCJ5.0HE3/57T reliable?
The price and inventory of SMCJ5.0HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0HE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ5.0HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0HE3/57T?
SMCJ5.0HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0HE3/57T 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 SMCJ5.0HE3/57T?
For technical support, including SMCJ5.0HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0HE3/57T requirements.
6.How does Aetrix verify that SMCJ5.0HE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0HE3/57T 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 SMCJ5.0HE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ5.0HE3/57T?
All SMCJ5.0HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0HE3/57T, 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 SMCJ5.0HE3/57T part is unused and in its original packaging.
Return procedure for SMCJ5.0HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0HE3/57T Tags
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