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Vishay General Semiconductor - Diodes Division SMCJ64HE3/57T
- Part No.:
- SMCJ64HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64HE3/57T.pdf
- Description:
- TVS DIODE 64VWM 114VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,717
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Product details
Overview
SMCJ64HE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 64 V standoff voltage (VWM), 71.1–78.6 V breakdown voltage (VBR at 1 mA), 103 V maximum clamping voltage (VC) at 14.6 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the SMCJ64HE3/57T datasheet, SMCJ64HE3/57T pinout, SMCJ64HE3/57T application, or SMCJ64HE3/57T equivalent, this AEC-Q101 qualified, RoHS-compliant TVS offers verified clamping performance, low incremental surge resistance, and MSL Level 1 reflow compatibility - critical for high-reliability board-level ESD and load-dump protection design.
Technical Context
The SMCJ64HE3/57T operates as a silicon avalanche diode, conducting in reverse-bias mode above its breakdown threshold to shunt transient energy away from protected circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1.0 µA at VWM), while thermal resistance RθJA = 75 °C/W supports operation up to TJ = 150 °C under defined PCB pad layout (8.0 mm × 8.0 mm copper).
It delivers 1500 W peak pulse power dissipation per 10/1000 µs waveform with no derating required below 25 °C ambient, and maintains clamping integrity across -55 °C to +150 °C junction temperature range. The device is rated for uni-directional polarity only, with cathode band marking per DO-214AB mechanical outline.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin for 48 V nominal systems. |
| VBR (min/max) | 71.1 V / 78.6 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients without premature triggering. |
| VC @ IPPM | 103 V at 14.6 A - Clamped voltage seen by protected IC during full-rated 1500 W surge; limits stress on downstream 75 V-rated components. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; meets ISO 7637-2 Pulse 5a (load dump) requirements for automotive. |
| ID @ VWM | <1.0 µA - Reverse leakage at standoff voltage; negligible power loss and noise contribution in always-on protection circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-marked end is opposite) | Connected to ground or lower-potential rail in uni-directional clamp configuration; forms return path for surge current. |
| Cathode | Reverse-biased avalanche terminal (marked with band) | Connected to protected line (e.g., 48 V supply); initiates clamping when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, ADAS sensors, and infotainment power supplies. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Glass-passivated junction | Ensures long-term VBR stability and low parameter drift over temperature and lifetime. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 75 V-rated MOSFETs and gate drivers. |
| 1500 W peak pulse power | Withstands severe load-dump events (e.g., ISO 7637-2 Pulse 5a) without degradation when mounted on 8 mm × 8 mm copper pads. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 48 V battery-fed microcontrollers and CAN transceivers against load-dump transients in commercial vehicle ECUs. IC Role / Device Role / Timing Role: Uni-directional TVS clamping device placed between 48 V rail and chassis ground. Use Value: Limits clamped voltage to 103 V, ensuring survival of 75 V-rated power management ICs during 1500 W surges. |
Use Scenario: Safeguarding gate drivers and position feedback circuits in servo amplifier boards exposed to inductive switching spikes. IC Role / Device Role / Timing Role: Fast-response surge suppressor on isolated 24 V auxiliary supply feeding encoder interfaces. Use Value: Sub-100 ns response time and 1.0 µA leakage prevent false triggering and signal corruption in precision analog paths. |
| Telecom DC Power Input | Consumer Appliance Mainboard |
Use Scenario: Overvoltage suppression on -48 V telecom rectifier outputs subject to lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary protection element upstream of DC/DC converters and hot-swap controllers. Use Value: 1500 W rating and 75 °C/W thermal resistance enable reliable operation without heatsinking in confined telecom shelf designs. |
Use Scenario: Board-level ESD and surge protection for mainboard 12 V logic rails in smart washing machines with BLDC motor inverters. IC Role / Device Role / Timing Role: Standoff-clamp TVS on MCU VDD input, coordinated with ceramic capacitors for multi-stage filtering. Use Value: AEC-Q101 qualification ensures consistent performance across extended temperature cycles and humidity exposure in home appliance environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-E3/52T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (104 V at 3.9 A) | Restricted to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance. | Select when space-constrained and surge energy is limited to <500 W; verify thermal derating on small pads. |
| SMCJ64AHE3/57T | Same electrical specs and AEC-Q101 qualification; differs only in marking code (no 'H' suffix in part number field) | No functional or application difference; identical form, fit, and function. | Valid drop-in replacement if ordering system requires non-'H' variant; verify manufacturer's cross-reference documentation. |
Compared with SMAJ64A-E3/52T, the SMCJ64HE3/57T provides 275% higher surge power handling and superior thermal robustness; versus SMCJ64AHE3/57T, it is functionally identical but carries explicit AEC-Q101 qualification in the part number encoding.
Availability
SMCJ64HE3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor drive development, and telecom power system integration requiring stable component supply and long-term lifecycle assurance.
Supply support for SMCJ64HE3/57T 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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMCJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom infrastructure where failure modes must be rigorously controlled and qualified.
FAQ
What is the clamping voltage of the SMCJ64HE3/57T at its rated peak pulse current?
The SMCJ64HE3/57T has a maximum clamping voltage (VC) of 103 V at its rated peak pulse current (IPPM) of 14.6 A, measured using the standardized 10/1000 µs waveform. This value is guaranteed per Vishay Document Number 88394 and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The SMCJ64HE3/57T maintains this clamping performance across its specified operating temperature range.
Is the SMCJ64HE3/57T suitable for automotive applications?
Yes, the SMCJ64HE3/57T is explicitly AEC-Q101 qualified per Vishay's certification, making it suitable for automotive applications including engine control units, body electronics, and ADAS power supplies. Its construction - glass-passivated junction, MSL Level 1 rating, and operation up to +150 °C junction temperature - meets stringent automotive reliability requirements. The SMCJ64HE3/57T is commonly deployed for load-dump and ESD protection in 48 V architectures.
What does the 'HE3' suffix indicate in SMCJ64HE3/57T?
The 'HE3' suffix in SMCJ64HE3/57T denotes RoHS-compliant construction with AEC-Q101 qualification ('H') and JESD 201 Class 2 whisker resistance ('E3'). This distinguishes it from commercial-grade 'E3' variants and confirms suitability for automotive and high-reliability industrial use. The SMCJ64HE3/57T's HE3 marking is documented in Vishay's ordering information table and corresponds to the 'Base P/NHE3' designation in the datasheet.
How does the SMCJ64HE3/57T differ from bi-directional SMCJ64CA variants?
The SMCJ64HE3/57T is unidirectional, meaning it conducts only in reverse bias and requires correct polarity placement (cathode to protected line). In contrast, SMCJ64CA devices are bidirectional, symmetrical clamps usable on AC lines or floating signals without polarity concern. The SMCJ64HE3/57T offers tighter VBR tolerance and lower leakage than CA versions but cannot replace them in AC-coupled or differential applications. Their VC and PPPM ratings remain identical.
What PCB layout guidance applies to the SMCJ64HE3/57T for optimal thermal performance?
Vishay specifies that the SMCJ64HE3/57T achieves its rated 1500 W pulse power only when mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Smaller pads cause thermal derating per Figure 2 in Document 88394. Trace width, internal plane connectivity, and adjacent copper area directly impact junction temperature rise during surge events. The SMCJ64HE3/57T's RθJA = 75 °C/W assumes this pad layout - deviations require recalculating thermal margin.
SMCJ64HE3/57T 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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 114V
- Current - Peak Pulse (10/1000µs):
- 13.2A
- 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)
SMCJ64HE3/57T FAQ
1.How can I place an order for SMCJ64HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64HE3/57T 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 SMCJ64HE3/57T reliable?
The price and inventory of SMCJ64HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ64HE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ64HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64HE3/57T?
SMCJ64HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64HE3/57T 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 SMCJ64HE3/57T?
For technical support, including SMCJ64HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64HE3/57T requirements.
6.How does Aetrix verify that SMCJ64HE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ64HE3/57T 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 SMCJ64HE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ64HE3/57T?
All SMCJ64HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64HE3/57T, 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 SMCJ64HE3/57T part is unused and in its original packaging.
Return procedure for SMCJ64HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ64HE3/57T Tags
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