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Vishay General Semiconductor - Diodes Division SMCJ64CAHE3_A/H
- Part No.:
- SMCJ64CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ64CAHE3_A/H.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,643
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Product details
Overview
SMCJ64CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features 64 V standoff voltage (VWM), 103 V maximum clamping voltage at 14.6 A peak pulse current (IPPM), and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed to safeguard automotive sensor signal lines, industrial I/O interfaces, and DC power rails against ESD and inductive switching transients.
For engineers reviewing the SMCJ64CAHE3_A/H datasheet, SMCJ64CAHE3_A/H pinout, SMCJ64CAHE3_A/H application, or SMCJ64CAHE3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT assembly on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transient overvoltage events, leveraging an avalanche breakdown mechanism with glass-passivated junction. Its bidirectional structure ensures symmetrical clamping in both polarities, eliminating polarity sensitivity in AC-coupled or floating signal paths.
Designed for compliance with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it delivers sub-nanosecond response time and low incremental surge resistance - critical for protecting downstream MOSFETs, CAN transceivers, and microcontroller GPIOs without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - maximum continuous reverse operating voltage before clamping initiates; defines safe DC bias margin for protected circuitry. |
| VBR min/max | 71.1 V / 78.6 V at IT = 1 mA - guaranteed breakdown threshold range ensuring consistent turn-on across production lots. |
| VC @ IPPM | 103 V at 14.6 A - clamping voltage under full 1500 W surge; determines worst-case voltage stress on downstream components. |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform; enables robust protection against lightning-induced surges and inductive kickback. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | SMC (DO-214AB) - standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with J-STD-020 reflow profiles. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
SMCJ64CAHE3_A/H uses the SMC (DO-214AB) package: a two-terminal surface-mount device with no polarity marking for bidirectional variants. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive polarity) | Accepts surge current during positive half-cycle; connects to line being protected (e.g., CAN_H or sensor supply). |
| Cathode | Transient current entry point (negative polarity) | Accepts surge current during negative half-cycle; ties to same reference plane as Anode - forms symmetric clamping path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses (e.g., RS-485, CAN, USB D+/D−) without polarity concerns. |
| AEC-Q101 qualification | Validates long-term reliability in automotive applications including engine control units, ADAS sensors, and body electronics. |
| 1500 W peak pulse power | Withstands repeated 10/1000 µs surges up to 14.6 A - sufficient for ISO 7637-2 Pulse 1/2a/5a test levels in 12 V systems. |
| Low RθJA (75 °C/W) | Enables effective self-heating management on standard PCB copper pads (8.0 mm × 8.0 mm), reducing thermal derating needs. |
| MSL Level 1 | Allows unlimited floor life and reflow at peak 260 °C - eliminates moisture sensitivity handling requirements for SMT lines. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure or temperature sensors in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp absorbing transients up to ±103 V while maintaining signal integrity below 64 V nominal. Use Value: Prevents latch-up or gate oxide damage in connected ADC front-ends and op-amps without adding series impedance or propagation delay. |
Use Scenario: Shielding 24 V PLC digital input channels from field-wiring induced surges during relay switching or motor startup. IC Role / Device Role / Timing Role: Fast-response crowbar limiting transient voltage to ≤103 V within <1 ns, enabling direct interface with 3.3 V or 5 V logic-level optocouplers. Use Value: Eliminates need for discrete RC snubbers or gas discharge tubes, reducing BOM count and board space in DIN-rail mounted controllers. |
| DC Power Rail Protection | Communication Bus Protection |
|
Use Scenario: Safeguarding 48 V telecom power distribution networks against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between rail and chassis ground, conducting only during overvoltage events above 64 V. Use Value: Maintains system uptime by preventing fuse blowing or DC-DC converter shutdown during Category C3/C4 surge events per IEC 61000-4-5. |
Use Scenario: Guarding CAN FD physical layer transceivers against ESD events (>15 kV contact) and coupled noise in vehicle infotainment gateways. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bidirectional clamp shunting transients away from CAN_H/CAN_L differential pair. Use Value: Preserves signal edge rate and common-mode rejection ratio (CMRR) while meeting ISO 11898-2 EMC immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC64CA | Same VWM (64 V) and VC (103 V), but lower PPPM (600 W); SOD-123FL package (smaller footprint, higher RθJA). | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for ISO 7637-2 Pulse 5a or lightning surges. | Select when board space is constrained and surge threat level is limited to ESD/EFT only. |
| 1.5KE68CA | Through-hole DO-201 package; identical electrical specs (VWM = 64 V, VC = 103 V, PPPM = 1500 W), but no AEC-Q101 qualification. | Not approved for automotive production; requires additional qualification effort for OEM use. | Choose for prototyping or non-automotive industrial designs where SMT is not required. |
Compared with SAC64CA and 1.5KE68CA, SMCJ64CAHE3_A/H uniquely combines AEC-Q101 qualification, SMT compatibility, and full 1500 W surge capability in a single industry-standard package - making it the preferred choice for volume automotive and harsh-environment industrial deployments.
Availability
SMCJ64CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and DC power rail surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMCJ64CAHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under extreme thermal, mechanical, and electrical stress conditions.
FAQ
What is the clamping voltage of SMCJ64CAHE3_A/H at its rated peak pulse current?
The SMCJ64CAHE3_A/H has a maximum clamping voltage (VC) of 103 V when subjected to 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 defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The SMCJ64CAHE3_A/H maintains this clamping performance across its full operating temperature range (–55 °C to +150 °C), ensuring predictable protection behavior in demanding environments.
Is SMCJ64CAHE3_A/H suitable for automotive applications?
Yes, SMCJ64CAHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It meets requirements for temperature cycling, highly accelerated life testing (HALT), and ESD robustness per AEC standards. The SMCJ64CAHE3_A/H is commonly deployed in engine control modules, ADAS camera interfaces, and body control units where protection against load dump, jump-start, and ISO 7637-2 transients is mandatory.
How does the bidirectional configuration of SMCJ64CAHE3_A/H affect its circuit placement?
The bidirectional configuration of SMCJ64CAHE3_A/H means it has no polarity marking and functions identically for both positive and negative transients - simplifying layout by eliminating cathode/anode orientation checks. It is placed differentially across the line-to-line or line-to-ground nodes it protects (e.g., between CAN_H and CAN_L, or between VBUS and GND). This symmetry allows the SMCJ64CAHE3_A/H to suppress surges regardless of voltage polarity, making it ideal for AC-coupled, floating, or differential signaling paths without requiring external diodes or directional routing.
What is the thermal resistance of SMCJ64CAHE3_A/H, and how does it impact PCB layout?
The SMCJ64CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB with no internal copper planes. To maintain safe junction temperatures during repetitive surges, designers must allocate adequate copper area and avoid excessive trace length or narrow connections. The SMCJ64CAHE3_A/H's low RθJA enables reliable operation without heatsinks in most industrial and automotive applications, provided the pad layout adheres to Vishay's specified dimensions.
Does SMCJ64CAHE3_A/H require special handling or baking prior to reflow soldering?
No, SMCJ64CAHE3_A/H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be subjected to standard lead-free reflow profiles peaking at 260 °C without pre-baking. Its moisture-sensitive level classification eliminates the need for dry-packaging, humidity indicator cards, or baking protocols - streamlining SMT line integration and reducing manufacturing overhead. This characteristic is confirmed in the official Vishay documentation for the SMCJ64CAHE3_A/H and applies across all HE3-suffixed variants in the SMCJ family.
SMCJ64CAHE3_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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ64CAHE3_A/H FAQ
1.How can I place an order for SMCJ64CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ64CAHE3_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 SMCJ64CAHE3_A/H reliable?
The price and inventory of SMCJ64CAHE3_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 SMCJ64CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ64CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ64CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ64CAHE3_A/H?
SMCJ64CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ64CAHE3_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 SMCJ64CAHE3_A/H?
For technical support, including SMCJ64CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ64CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ64CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ64CAHE3_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 SMCJ64CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ64CAHE3_A/H?
All SMCJ64CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ64CAHE3_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 SMCJ64CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ64CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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