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Vishay General Semiconductor - Diodes Division SMBJ64AHE3_A/H
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- Part No.:
- SMBJ64AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64AHE3_A/H.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,981
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Product details
Overview
SMBJ64AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (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 to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ64AHE3_A/H datasheet, SMBJ64AHE3_A/H pinout, SMBJ64AHE3_A/H application, or SMBJ64AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with sensitive downstream circuitry, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance, while low incremental surge resistance enables effective energy diversion during transient events such as inductive load switching or ESD.
The SMBJ64AHE3_A/H is rated for 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with derating above 25 °C ambient per Fig. 2. Its 1.0 μA max reverse leakage at 64 V stand-off supports low-power system integrity, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on margin |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage seen by protected circuit during 600 W transient |
| PPPM | 600 W (10/1000 μs) - Surge energy handling capacity compatible with IEC 61000-4-5 Level 4 |
| ID @ VWM | ≤1.0 μA - Minimal standby leakage preserving battery life and signal integrity |
| TJ max | +150 °C - Enables operation in high-temperature industrial environments without derating |
| RθJA | 100 °C/W - Thermal resistance defining required PCB copper area for sustained 5.0 W dissipation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or common return path; defines unidirectional conduction direction |
| Cathode | High-side connection point | Connected to protected line; clamps transients toward ground when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Stable electrical parameters over time and environmental stress, reducing parameter drift |
| 600 W peak pulse power | Supports robust protection against lightning-induced surges and inductive kickback in 24 V/48 V systems |
| MSL Level 1 rating | Enables standard SMT reflow without moisture-related popcorn failure risk |
| UL 497B recognition | Meets Underwriters Laboratories requirements for telecom and industrial surge protection devices |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins from flyback voltage spikes generated by relay and solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or control line to clamp transients below MOSFET VDS and MCU input absolute maximum ratings. Use Value: Prevents latch-up and permanent damage during repetitive 600 W surge events with ≤103 V clamping voltage. | Use Scenario: Safeguarding LIN bus transceivers and power management ICs against load dump and jump-start transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN line and chassis ground to suppress >100 V transients within nanoseconds. Use Value: Maintains communication integrity during ISO 7637-2 Pulse 5a (load dump) with AEC-Q101 validated lifetime performance. |
| Telecom Power Supplies | Industrial Sensor Signal Conditioning |
Use Scenario: Input-stage protection for AC/DC adapters and PoE injectors exposed to lightning-induced surges on primary-side inputs. IC Role / Device Role / Timing Role: Primary-side TVS placed after fuse and before bridge rectifier to absorb line-to-line and line-to-ground transients. Use Value: Limits let-through voltage to <103 V under 10/1000 μs surges, enabling use of lower-voltage-rated downstream components. | Use Scenario: Protection of analog front-end amplifiers and ADC inputs in pressure/temperature sensors deployed in factory automation equipment. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) TVS installed on sensor output line to suppress ESD and cable discharge events without affecting mV-level signals. Use Value: Preserves signal fidelity while providing 600 W transient immunity and –55 to +150 °C operational range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64AE3/52 | Commercial-grade (non-AEC-Q101), same VWM/VBR/VC specs, identical SMB package | Lacks automotive qualification; suitable for non-automotive industrial or telecom use | Select when AEC-Q101 is not required and cost optimization is prioritized |
| SMCJ64AHE3_A/H | Same electrical specs but in larger SMC (DO-214AB) package with higher RθJA (60 °C/W) and 1500 W PPPM rating | Higher power handling and better thermal performance; requires larger PCB footprint | Choose when system-level surge requirements exceed 600 W or thermal margin is constrained |
Compared with SMBJ64AHE3_A/H, SMBJ64AE3/52 offers identical clamping behavior without automotive qualification, while SMCJ64AHE3_A/H delivers 2.5× higher surge power in a larger package-enabling longer transient duration support or improved thermal headroom in space-tolerant designs.
Availability
SMBJ64AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply with AEC-Q101 validation and UL 497B recognition.
Supply support for SMBJ64AHE3_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 and application-specific performance.
The SMBJ series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where high surge immunity and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ64AHE3_A/H at its rated peak pulse current?
The SMBJ64AHE3_A/H has a maximum clamping voltage (VC) of 103 V at its specified peak pulse current (IPPM) of 5.8 A under the 10/1000 μs waveform condition. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ64AHE3_A/H maintains this clamping performance across its full operating temperature range of –55 to +150 °C.
Is SMBJ64AHE3_A/H qualified for automotive applications?
Yes, SMBJ64AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in the 88392 datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making SMBJ64AHE3_A/H suitable for automotive body electronics, infotainment power rails, and sensor interfaces where reliability under vibration and thermal cycling is mandatory.
What is the reverse leakage current specification for SMBJ64AHE3_A/H at its stand-off voltage?
The SMBJ64AHE3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 64 V stand-off voltage (VWM), tested at 25 °C ambient. This low leakage preserves signal integrity in high-impedance sensor circuits and extends battery life in always-on systems. Leakage remains within specification up to +150 °C junction temperature, supporting use in thermally demanding enclosures.
Does SMBJ64AHE3_A/H have a bidirectional variant?
No, SMBJ64AHE3_A/H is strictly unidirectional, indicated by the "A" suffix and cathode band marking. For bidirectional operation at the same voltage rating, the equivalent part is SMBJ64CAHE3_A/H (with "CA" suffix), which provides symmetrical clamping in both polarities and is used in AC-coupled or differential signal lines where polarity reversal may occur.
What is the thermal resistance from junction to ambient for SMBJ64AHE3_A/H?
The SMBJ64AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking and defines the temperature rise per watt of steady-state power dissipation. For continuous operation near its 5.0 W power rating, PCB layout must allocate sufficient copper area to maintain junction temperature below +150 °C.
SMBJ64AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SMBJ64AHE3_A/H FAQ
1.How can I place an order for SMBJ64AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64AHE3_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 SMBJ64AHE3_A/H reliable?
The price and inventory of SMBJ64AHE3_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 SMBJ64AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ64AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64AHE3_A/H?
SMBJ64AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64AHE3_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 SMBJ64AHE3_A/H?
For technical support, including SMBJ64AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64AHE3_A/H requirements.
6.How does Aetrix verify that SMBJ64AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ64AHE3_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 SMBJ64AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ64AHE3_A/H?
All SMBJ64AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64AHE3_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 SMBJ64AHE3_A/H part is unused and in its original packaging.
Return procedure for SMBJ64AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64AHE3_A/H Tags
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