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Vishay General Semiconductor - Diodes Division SMCJ64AHE3_A/H
- Part No.:
- SMCJ64AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64AHE3_A/H.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,161
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Product details
Overview
SMCJ64AHE3_A/H 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 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), 103 V clamping voltage at 14.6 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ64AHE3_A/H datasheet, SMCJ64AHE3_A/H pinout, SMCJ64AHE3_A/H application, or SMCJ64AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs surge, junction temperature derating above 25 °C, unidirectional polarity marking, and RoHS-compliant AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 64 V), while the SMC package provides low thermal resistance (RθJL = 15 °C/W) for effective heat dissipation during transient events.
The device is rated for -55 °C to +150 °C operating junction temperature, with derated peak pulse power above TA = 25 °C per Figure 2. It meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min/max | 71.1 V / 78.6 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 103 V at 14.6 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on protected IC. |
| PPPM | 1500 W - Peak pulse power handling capability; validates protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Qualification | AEC-Q101 qualified - Certified for automotive electronics per stress test requirements including HTOL, TCT, and ESD. |
| RθJL | 15 °C/W - Junction-to-lead thermal resistance; supports reliable power dissipation without external heatsink. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band; anode is unmarked end. Meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage event. |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground or low-impedance return; completes clamping current path. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring extended lifetime and thermal cycling endurance. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
| MSL Level 1 rating | Enables standard SMT reflow assembly without moisture sensitivity concerns or baking requirements. |
| 1500 W peak pulse power | Supports protection against high-energy transients such as load dump (ISO 16750-2) and inductive switching spikes. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump transients up to 35 V for 400 ms and coupled spikes per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power input and ground to clamp surges before they reach LDOs or microcontrollers. Use Value: Clamps to ≤103 V within nanoseconds, limiting stress on 36 V-rated input stages and preventing latch-up or gate oxide damage. |
Use Scenario: Analog sensor outputs (e.g., pressure, temperature) routed through long harnesses in factory automation systems. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential or single-ended signal lines to suppress ESD (IEC 61000-4-2) and cable discharge events. Use Value: Sub-100 ns response time and <1 µA leakage at 64 V preserve signal integrity and offset accuracy in precision 24-bit ADC front-ends. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: 48 V PoE-powered network switches subjected to lightning-induced surges on Ethernet ports and auxiliary DC inputs. IC Role / Device Role / Timing Role: Primary-stage TVS on secondary-side 48 V input rail upstream of DC/DC converters and PMICs. Use Value: 1500 W rating handles multi-kA induced surges; 150 °C TJ max allows operation in sealed, fanless enclosures. |
Use Scenario: USB-C or barrel-jack powered smart home hubs with internal Li-ion charging circuits. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to prevent overvoltage damage from faulty adapters or hot-plug transients. Use Value: 64 V VWM provides headroom above 20 V PD 3.0 max, while 103 V VC avoids triggering overvoltage lockout in buck controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC64AHE3_A/H | Same VWM (64 V) and PPPM (1500 W), but lower VBR (64–71.1 V) and higher ID (5 µA vs. 1 µA). | Higher leakage may affect ultra-low-power always-on circuits; better suited for non-battery-critical industrial use. | Select SAC64AHE3_A/H only if tighter VBR tolerance is required and leakage sensitivity is low. |
| SMCJ64CAHE3_A/H | Bidirectional variant with identical VWM/VBR specs but symmetrical clamping in both polarities. | Required for AC-coupled or floating signal lines where reverse polarity surges occur (e.g., RS-485, CAN bus). | Choose SMCJ64CAHE3_A/H only when bidirectional protection is mandated by interface standard or signal swing. |
Compared with SAC64AHE3_A/H and SMCJ64CAHE3_A/H, the SMCJ64AHE3_A/H offers optimal balance of low leakage, precise unidirectional clamping, and AEC-Q101 qualification-making it the preferred choice for automotive power rail and DC signal line protection where polarity is fixed and reliability is critical.
Availability
SMCJ64AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and consumer DC-input protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMCJ64AHE3_A/H 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 automotive-grade qualification.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against ISO 16750, IEC 61000-4-5, and ESD threats is mandatory.
FAQ
What is the clamping voltage of the SMCJ64AHE3_A/H under a 10/1000 µs surge?
The SMCJ64AHE3_A/H clamps to a maximum of 103 V at 14.6 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ64AHE3_A/H maintains this clamping performance across its full operating temperature range when mounted per recommended pad layout.
Is the SMCJ64AHE3_A/H suitable for automotive applications?
Yes, the SMCJ64AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and ESD (HBM/MM). The SMCJ64AHE3_A/H is deployed in engine control units, body control modules, and ADAS sensors where immunity to load dump and ISO 7637-2 pulses is required.
How does the SMCJ64AHE3_A/H differ from the bidirectional SMCJ64CAHE3_A/H?
The SMCJ64AHE3_A/H is unidirectional and protects only against reverse-polarity overvoltage, with cathode marked by a band. The SMCJ64CAHE3_A/H is bidirectional, offering symmetrical clamping for both polarities-required for AC signals or floating lines like CAN or RS-485. Both share identical VWM (64 V), VBR, and PPPM (1500 W), but the SMCJ64AHE3_A/H exhibits lower leakage (<1 µA) due to its unidirectional structure.
What is the thermal resistance and maximum junction temperature of the SMCJ64AHE3_A/H?
The SMCJ64AHE3_A/H has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and a maximum junction temperature (TJ max) of +150 °C. These values enable reliable operation in under-hood automotive environments and sealed industrial enclosures without forced cooling. Derating of peak pulse power begins above TA = 25 °C per Figure 2 in the Vishay datasheet 88394.
Does the SMCJ64AHE3_A/H meet RoHS and halogen-free requirements?
Yes, the SMCJ64AHE3_A/H is RoHS-compliant and carries the "HE3" suffix indicating AEC-Q101 qualification and RoHS compliance. It is not halogen-free-that designation applies to "HM3" variants. The SMCJ64AHE3_A/H uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and its molding compound meets UL 94 V-0 flammability rating.
SMCJ64AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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)
SMCJ64AHE3_A/H FAQ
1.How can I place an order for SMCJ64AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64AHE3_A/H 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 SMCJ64AHE3_A/H reliable?
The price and inventory of SMCJ64AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ64AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ64AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64AHE3_A/H?
SMCJ64AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64AHE3_A/H 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 SMCJ64AHE3_A/H?
For technical support, including SMCJ64AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64AHE3_A/H requirements.
6.How does Aetrix verify that SMCJ64AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ64AHE3_A/H 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 SMCJ64AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ64AHE3_A/H?
All SMCJ64AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64AHE3_A/H, 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 SMCJ64AHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ64AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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