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Vishay General Semiconductor - Diodes Division SMBJ64CAHE3_B/H
- Part No.:
- SMBJ64CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CAHE3_B/H.pdf
- Description:
- 600W,64V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,265
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Product details
Overview
SMBJ64CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 64 V standoff voltage (VWM), 71.1–78.6 V breakdown range (VBR at 1 mA), 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used in industrial sensor interface protection and automotive ECU input conditioning.
For engineers reviewing the SMBJ64CAHE3_B/H datasheet, SMBJ64CAHE3_B/H pinout, SMBJ64CAHE3_B/H application, or SMBJ64CAHE3_B/H equivalent, this device is selected for robust bidirectional surge suppression in 24 V and 48 V DC systems where low clamping voltage, fast response (<1 ns), and AEC-Q101 qualification are required.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 64 V), while the 20 °C/W junction-to-lead thermal resistance supports reliable energy dissipation under repetitive surge conditions.
The device complies with ANSI/IEEE C62.35 for transient suppressor definitions and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its AEC-Q101 qualification confirms suitability for automotive under-hood and body electronics applications requiring extended temperature operation from –55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 24 V/48 V rail protection. |
| VBR min/max | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to <103 V under rated 600 W pulse. |
| PPPM | 600 W - Peak pulse power handling with standard 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity testing. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at rated standoff voltage; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in engine control units and industrial motor drives with elevated ambient heat. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals function as interchangeable anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as current entry point during positive or negative transients; no fixed polarity required. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completes symmetrical clamping path; enables placement across differential lines or AC signals without orientation check. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles IEC 61000-4-5 Combination Wave surges up to 4 kV without degradation when mounted per recommended pad layout. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for ECU, ADAS, and body control modules. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot during fast transients; delivers tighter protection margin than standard Zener-based suppressors. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture-induced damage or parametric shift. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced leakage drift in harsh environments. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor output and ground to clamp ±1 kV ESD and 600 V inductive spikes within nanoseconds. Use Value: Prevents ADC input saturation and op-amp latch-up by limiting transient voltage to ≤103 V while maintaining <1 µA leakage at 24 V nominal supply. |
Use Scenario: Input protection for LIN bus transceivers and window lift motor drivers in door modules subject to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Mounted between LIN line and chassis ground to suppress coupled transients without distorting 19.2 kbps signaling integrity. Use Value: Enables compliance with ISO 7637-3 Pulse 2b and ISO 16750-2 load dump tests using a single device per line due to symmetrical clamping behavior. |
| Telecom Power Supply Input | Renewable Energy Inverter Control Board |
|
Use Scenario: Secondary-side DC input protection for PoE-powered network switches experiencing induced surges from nearby AC mains wiring. IC Role / Device Role / Timing Role: Placed across 48 V DC input rails to absorb 10/1000 µs surges up to 600 W without thermal runaway. Use Value: Maintains system uptime by preventing fuse blowing or MOSFET gate oxide failure during repeated lightning-induced surges in outdoor installations. |
Use Scenario: Protection of microcontroller GPIOs and isolated gate driver inputs in solar inverter control boards exposed to grid switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping element on isolated feedback signal paths to preserve galvanic isolation integrity during common-mode surges. Use Value: Eliminates need for separate unidirectional devices on differential pairs, reducing BOM count and PCB area while meeting IEC 61000-4-4 EFT requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA-M3/52 | Same electrical specs and SMB package; halogen-free, RoHS-compliant, commercial grade (non-AEC-Q101). | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive qualification requirements and full traceability is not needed. |
| SMCJ64CAHE3_A/H | Higher power rating (1500 W), larger SMC (DO-214AB) package; identical VWM, VBR, and VC specs. | Used where higher surge repetition rate or longer pulse duration (e.g., IEC 61000-4-5 1.2/50 µs + 8/20 µs combo wave) is expected. | Choose when system-level surge testing exceeds 600 W capability or board layout allows larger footprint for enhanced thermal margin. |
Compared with SMBJ64CAHE3_B/H, SMBJ64CA-M3/52 offers identical protection performance without automotive qualification, while SMCJ64CAHE3_A/H provides 2.5× higher pulse power in a larger package - selection depends on qualification needs and surge test profile severity.
Availability
SMBJ64CAHE3_B/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and telecom power supply inputs requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ64CAHE3_B/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 SMBJ series was developed for high-reliability transient suppression in space-constrained surface-mount applications across automotive, industrial, and communications infrastructure - prioritizing low clamping voltage and AEC-Q101 compliance.
FAQ
What is the clamping voltage of SMBJ64CAHE3_B/H at its rated peak pulse current?
The SMBJ64CAHE3_B/H has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for downstream circuitry during surge events. The SMBJ64CAHE3_B/H maintains this clamping performance across its specified operating temperature range.
Is SMBJ64CAHE3_B/H suitable for automotive applications?
Yes, SMBJ64CAHE3_B/H is AEC-Q101 qualified, as indicated by the "HE3" suffix and confirmed in Vishay's ordering information table. It is rated for operation from –55 °C to +150 °C and validated for automotive reliability stresses including temperature cycling and humidity bias. The SMBJ64CAHE3_B/H is commonly deployed in body control modules, infotainment power supplies, and sensor front-ends where certified surge protection is mandatory.
How does the bidirectional design of SMBJ64CAHE3_B/H affect its circuit placement?
The SMBJ64CAHE3_B/H has no polarity marking and functions identically in both directions, allowing placement across any two nodes requiring symmetrical transient suppression - such as differential signal lines, AC-coupled interfaces, or ungrounded power rails. Unlike unidirectional TVS diodes, the SMBJ64CAHE3_B/H eliminates orientation errors during assembly and simplifies layout for balanced protection schemes without requiring cathode alignment checks.
What is the maximum reverse leakage current for SMBJ64CAHE3_B/H at its standoff voltage?
The SMBJ64CAHE3_B/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 64 V standoff voltage (VWM), measured at TA = 25 °C. This low leakage preserves signal integrity in high-impedance sensor circuits and minimizes standby power loss in battery-operated systems. The SMBJ64CAHE3_B/H maintains this specification across its full operating temperature range, supported by glass passivation technology.
Does SMBJ64CAHE3_B/H meet JEDEC moisture sensitivity level requirements?
Yes, SMBJ64CAHE3_B/H meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows indefinite floor life and compatibility with standard lead-free reflow profiles without baking or special handling. The SMBJ64CAHE3_B/H's MSL Level 1 rating is documented in the Mechanical Data section of Vishay's datasheet 88392 and verified through qualification testing.
SMBJ64CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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):
- 5.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ64CAHE3_B/H FAQ
1.How can I place an order for SMBJ64CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CAHE3_B/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 SMBJ64CAHE3_B/H reliable?
The price and inventory of SMBJ64CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ64CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CAHE3_B/H?
SMBJ64CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CAHE3_B/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 SMBJ64CAHE3_B/H?
For technical support, including SMBJ64CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CAHE3_B/H requirements.
6.How does Aetrix verify that SMBJ64CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ64CAHE3_B/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 SMBJ64CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ64CAHE3_B/H?
All SMBJ64CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CAHE3_B/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 SMBJ64CAHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ64CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CAHE3_B/H Tags
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