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Vishay General Semiconductor - Diodes Division SMCJ64CHE3/9AT
- Part No.:
- SMCJ64CHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64CHE3/9AT.pdf
- Description:
- TVS DIODE 64VWM 114VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,689
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Product details
Overview
SMCJ64CHE3/9AT 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, 1500 W peak pulse power (10/1000 µs), 103 V clamping voltage at 14.6 A surge current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCJ64CHE3/9AT datasheet, SMCJ64CHE3/9AT pinout, SMCJ64CHE3/9AT application, or SMCJ64CHE3/9AT equivalent, this device is selected for high-energy transient suppression on DC power rails, MOSFET gate drivers, and automotive sensor interfaces where low clamping voltage, fast response (<1 ns), and stable thermal performance up to 150 °C junction temperature are critical.
Technical Context
The SMCJ64CHE3/9AT operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its VBR range (71.1–78.6 V) and clamping transients to ≤103 V at rated IPPM. Its glass-passivated junction ensures stable leakage (<1 µA at 64 V) and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads, it delivers 1500 W peak pulse power with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation in compact automotive and industrial PCB layouts without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR min/max | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 103 V at 14.6 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Leakage ID | ≤1 µA at 64 V - Low reverse leakage preserves system efficiency and prevents false triggering in high-impedance circuits. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control units, body electronics, and ADAS sensor modules. |
Pinout & Package
Package: DO-214AB (SMCJ), molded plastic case with matte tin-plated leads, RoHS-compliant, MSL level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink | Connected to protected line; conducts transient energy to ground during overvoltage events. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during avalanche conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low incremental surge resistance | Enables tighter clamping (103 V) at high surge currents (14.6 A), reducing voltage overshoot on downstream components. |
| Glass passivated chip junction | Ensures stable electrical parameters and long-term reliability under thermal cycling and humidity exposure per J-STD-020. |
| Fast response time | <1 ns response to transients - protects sensitive CMOS inputs and microcontrollers before damage occurs. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow. |
| Matte tin plating | Solderable per J-STD-002 and JESD 22-B102; compatible with lead-free and SnPb processes. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping surges before they reach LDOs and microcontrollers. Use Value: Withstands 1500 W pulses and maintains clamping below 103 V, preventing latch-up or permanent damage in AEC-Q100 Grade 2 systems. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs from ESD and inductive kickback. IC Role / Device Role / Timing Role: Connected across signal line and ground to shunt fast transients while preserving signal integrity via low capacitance (<100 pF typical). Use Value: Sub-1 ns response and ≤1 µA leakage ensure no DC offset or noise injection into precision 4–20 mA or 0–10 V sensor circuits. |
| DC-DC Converter Input Protection | MOSFET Gate Driver Protection |
Use Scenario: Safeguarding buck/boost converter inputs in telecom power supplies exposed to lightning-induced surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: Mounted directly at converter input terminals to clamp incoming transients before bulk capacitors and controller ICs. Use Value: 1500 W PPPM rating and 75 °C/W RθJA allow sustained surge handling without thermal runaway in enclosed enclosures. | Use Scenario: Preventing gate oxide rupture in high-side N-channel MOSFETs driven by microcontrollers in motor control inverters. IC Role / Device Role / Timing Role: Placed between gate and source to clamp Miller-induced voltage spikes during switching transitions. Use Value: Tight VBR tolerance (±5.5%) and low clamping ratio (VC/VBR ≈ 1.36) limit gate stress to safe levels even at 150 °C junction temperature. |
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-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (104 V at 3.8 A) | Suitable only for lower-energy transients (IEC 61000-4-2 ESD); not rated for ISO 7637-2 load dump | Select when board space is constrained and surge energy is limited to <50 mJ. |
| 1.5KE68A | Through-hole TO-218 package, same VWM (68 V), higher VC (118 V at 12.7 A), non-AEC-Q101 | Lacks automotive qualification; requires wave soldering; less suitable for high-vibration environments | Choose for legacy through-hole designs or cost-sensitive industrial applications without automotive requirements. |
Compared with SMAJ64A-E3/61T and 1.5KE68A, the SMCJ64CHE3/9AT delivers 3.75× higher surge power handling, AEC-Q101 qualification, and surface-mount compatibility-making it the preferred choice for next-generation automotive and high-reliability industrial power protection where clamping performance, thermal robustness, and manufacturability are jointly critical.
Availability
SMCJ64CHE3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC-DC converter input surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMCJ64CHE3/9AT 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 belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the SMCJ64CHE3/9AT at its rated peak pulse current?
The SMCJ64CHE3/9AT has a maximum clamping voltage (VC) of 103 V at its rated peak pulse current (IPPM) of 14.6 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 11-Dec-12, ensuring predictable overvoltage limiting for protected circuitry. The SMCJ64CHE3/9AT achieves this clamping performance while maintaining low incremental resistance and thermal stability up to 150 °C junction temperature.
Is the SMCJ64CHE3/9AT suitable for automotive applications?
Yes, the SMCJ64CHE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its DO-214AB package meets MSL level 1, its glass-passivated junction withstands thermal cycling, and its 1500 W surge rating supports ISO 7637-2 Pulse 5a load dump testing. The SMCJ64CHE3/9AT is manufactured with HE3 suffix indicating AEC-Q101 compliance per Vishay's ordering nomenclature.
What is the standoff voltage (VWM) and breakdown voltage range for the SMCJ64CHE3/9AT?
SMCJ64CHE3/9AT has a standoff voltage (VWM) of 64 V and a minimum/maximum breakdown voltage (VBR) of 71.1 V / 78.6 V at 1 mA test current. These values are specified in the Vishay datasheet Document Number 88394 and define the device's conduction threshold and design margin. The SMCJ64CHE3/9AT uses a unidirectional configuration, with polarity indicated by the cathode band on the DO-214AB package.
How does the SMCJ64CHE3/9AT compare to the SMAJ64A-E3/61T in terms of surge handling capability?
The SMCJ64CHE3/9AT provides 1500 W peak pulse power (PPPM), whereas the SMAJ64A-E3/61T is rated for only 400 W-3.75× less. This difference stems from larger die size and optimized thermal path in the DO-214AB package versus DO-214AC. For applications requiring IEC 61000-4-5 Level 4 immunity or ISO 7637-2 compliance, the SMCJ64CHE3/9AT is necessary; the SMAJ64A-E3/61T suits only lower-energy ESD or localized transients.
What packaging and reel options are available for the SMCJ64CHE3/9AT?
The SMCJ64CHE3/9AT is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 3500 units per reel (package code 9AT). It features matte tin-plated leads, complies with RoHS Directive 2011/65/EU, and meets JESD 201 class 2 whisker resistance. The SMCJ64CHE3/9AT is distinct from commercial-grade variants (e.g., SMCJ64A-E3/9AT) due to its HE3 suffix denoting AEC-Q101 qualification.
SMCJ64CHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ64CHE3/9AT FAQ
1.How can I place an order for SMCJ64CHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64CHE3/9AT 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 SMCJ64CHE3/9AT reliable?
The price and inventory of SMCJ64CHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ64CHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ64CHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64CHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64CHE3/9AT?
SMCJ64CHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64CHE3/9AT 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 SMCJ64CHE3/9AT?
For technical support, including SMCJ64CHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64CHE3/9AT requirements.
6.How does Aetrix verify that SMCJ64CHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ64CHE3/9AT 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 SMCJ64CHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ64CHE3/9AT?
All SMCJ64CHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64CHE3/9AT, 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 SMCJ64CHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ64CHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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