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Vishay General Semiconductor - Diodes Division SMBJ64D-M3/H
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- Part No.:
- SMBJ64D-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64D-M3/H.pdf
- Description:
- TVS DIODE 64VWM 102VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:1,252
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Product details
Overview
SMBJ64D-M3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping inductive switching transients and lightning-induced surges on power and signal lines. It features a 64 V stand-off voltage (VWM), 72.2–77.5 V breakdown voltage (VBR) at 1 mA, 102 V maximum clamping voltage (VC) at 5.88 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMBJ64D-M3/H datasheet, SMBJ64D-M3/H pinout, SMBJ64D-M3/H application, or SMBJ64D-M3/H equivalent, key selection criteria include unidirectional polarity, ±3.5 % VBR tolerance, low leakage (<0.5 μA at VWM), M3 halogen-free RoHS-compliant construction, and compatibility with automated SMT placement on industrial-grade PCBs.
Technical Context
This TVS diode operates as a voltage-clamping protection device, conducting only when reverse voltage exceeds its breakdown threshold to shunt surge energy away from downstream ICs or MOSFETs. Its low incremental surge resistance and fast response time ensure effective suppression of transient events up to 600 W without thermal runaway under repetitive 0.01 % duty cycle conditions.
Thermal performance is defined by RθJA = 125 °C/W (on minimum pad layout) and RθJM = 20 °C/W, supporting reliable operation up to TJ = 150 °C. The device meets J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker resistance, confirming suitability for high-reliability industrial assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 72.2 V / 77.5 V at 1 mA - Tight ±3.5 % tolerance ensures predictable turn-on across production lots |
| VC @ IPPM | 102 V at 5.88 A - Clamping voltage during 10/1000 μs surge defines worst-case stress on protected circuitry |
| PPPM | 600 W - Peak pulse power handling capability per standard 10/1000 μs waveform |
| ID @ VWM | <0.5 μA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss |
| TJ max | 150 °C - Maximum junction temperature enabling use in high-ambient industrial environments |
| Package | SMB (DO-214AA) - Standardized surface-mount outline compatible with JEDEC MS-012AC footprint |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band at one end; compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 64 V rail or signal trace); conducts surge current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise coordination with system overvoltage thresholds without margin stacking |
| 600 W peak pulse power | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) on 64 V systems |
| Low 0.5 μA leakage at VWM | Maintains high impedance during normal operation, avoiding interference with 64 V sensor or control signals |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak, eliminating bake-out requirements in manufacturing |
| M3 suffix compliance | Guarantees halogen-free, RoHS-compliant, and whisker-resistant construction for industrial reliability |
Applications
| Industrial Motor Drive Power Supply | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protection of 64 V auxiliary power rails feeding gate drivers and microcontrollers in 48 V mild-hybrid vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes induced by relay coil de-energization or load dump events. Use Value: Limits voltage excursion to ≤102 V during 5.88 A surge, preventing latch-up or oxide damage in 65 V-rated power management ICs. | Use Scenario: Surge suppression on LIN bus or CAN FD power supply lines exposed to battery transients in BCM subassemblies. IC Role / Device Role / Timing Role: Standby-mode protector absorbing coupled noise from adjacent high-current solenoid circuits. Use Value: Sub-μA leakage preserves bus quiescent current budget while maintaining 64 V system-level immunity per ISO 7637-2 Pulse 1/2a. |
| Telecom Remote Radio Unit (RRU) | Industrial PLC Analog Input Module |
Use Scenario: Input stage protection for DC-DC converters powering RF amplifiers in outdoor base station equipment. IC Role / Device Role / Timing Role: Primary clamping element on 64 V intermediate bus against lightning-induced surges entering via external cabling. Use Value: 600 W rating handles multi-kA induced currents without degradation, validated per IEC 61000-4-5 Ed.3 Annex C test setup. | Use Scenario: Protection of precision 24/64 V analog input front-ends (e.g., ADC reference or op-amp supply) in factory automation sensors. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp placed directly at connector entry point to prevent ESD and switching transients from propagating into signal chain. Use Value: 102 V clamping voltage ensures downstream 12-bit ADCs and instrumentation amplifiers remain within absolute maximum ratings during 1 kV contact ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A-M3/H | Same VWM (64 V) and PPPM (600 W), but bidirectional; symmetric clamping in both polarities | Required where AC-coupled or dual-polarity signal lines need protection (e.g., RS-485, Ethernet PHY) | Select SMBJ64A-M3/H only if bidirectional clamping is required; SMBJ64D-M3/H is optimal for DC rails with defined polarity |
| SMCJ64A-M3/H | Same VWM and polarity, but larger SMC (DO-214AB) package; higher thermal mass and RθJA = 40 °C/W | Better suited for high-power, low-duty-cycle surges where board space allows larger footprint | Choose SMCJ64A-M3/H when >1.0 W steady-state dissipation or enhanced thermal margin is needed; SMBJ64D-M3/H prioritizes compactness and SMT compatibility |
Compared with SMBJ64A-M3/H and SMCJ64A-M3/H, the SMBJ64D-M3/H provides unidirectional clamping in the smallest standardized surface-mount TVS package, delivering optimal space efficiency and process compatibility for 64 V DC power rail protection without sacrificing 600 W surge capability.
Availability
SMBJ64D-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom remote radio units, and PLC analog input modules requiring stable component supply and long-term manufacturability.
Supply support for SMBJ64D-M3/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 optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting industrial, automotive, and telecom applications where consistent clamping performance and long-term stability under thermal cycling are critical.
FAQ
What is the clamping voltage of SMBJ64D-M3/H at its rated peak pulse current?
The SMBJ64D-M3/H has a maximum clamping voltage (VC) of 102 V at 5.88 A peak pulse current (IPPM), measured using the standard 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated surge event and is confirmed in the Vishay datasheet Document Number 87606, Table "ELECTRICAL CHARACTERISTICS" for SMBJ64D.
Is SMBJ64D-M3/H suitable for protecting a 64 V DC power rail?
Yes, SMBJ64D-M3/H is specifically designed for 64 V DC rail protection. Its 64 V stand-off voltage (VWM) ensures non-conduction during normal operation, while its 72.2–77.5 V breakdown range and 102 V clamping voltage provide controlled, repeatable surge suppression without false triggering. It is widely deployed in 48 V/64 V industrial and automotive subsystems.
Does SMBJ64D-M3/H meet RoHS and halogen-free requirements?
Yes, the "M3" suffix in SMBJ64D-M3/H explicitly denotes halogen-free, RoHS-compliant construction per Vishay's material categorization standard. It also passes JESD 201 Class 2 whisker testing and meets UL 94 V-0 flammability rating, making it suitable for industrial-grade and environmentally regulated applications.
What is the thermal resistance of SMBJ64D-M3/H when mounted on standard PCB pads?
When mounted on the minimum recommended pad layout, SMBJ64D-M3/H exhibits a typical junction-to-ambient thermal resistance (RθJA) of 125 °C/W. This value is critical for calculating safe power derating above 25 °C ambient and is specified in the "THERMAL CHARACTERISTICS" section of the Vishay datasheet 87606.
How does SMBJ64D-M3/H differ from SMBJ64A-M3/H?
SMBJ64D-M3/H is unidirectional (cathode-banded), while SMBJ64A-M3/H is bidirectional (no band), offering symmetrical clamping in both polarities. Both share identical VWM (64 V), PPPM (600 W), and SMB package, but SMBJ64D-M3/H is intended for DC rails with defined polarity, whereas SMBJ64A-M3/H suits AC or differential signal lines like RS-485 or CAN.
SMBJ64D-M3/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 72.2V
- Voltage - Clamping (Max) @ Ipp:
- 102V
- Current - Peak Pulse (10/1000µs):
- 5.88A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ64D-M3/H FAQ
1.How can I place an order for SMBJ64D-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64D-M3/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 SMBJ64D-M3/H reliable?
The price and inventory of SMBJ64D-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64D-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ64D-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64D-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64D-M3/H?
SMBJ64D-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64D-M3/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 SMBJ64D-M3/H?
For technical support, including SMBJ64D-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64D-M3/H requirements.
6.How does Aetrix verify that SMBJ64D-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ64D-M3/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 SMBJ64D-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ64D-M3/H?
All SMBJ64D-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64D-M3/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 SMBJ64D-M3/H part is unused and in its original packaging.
Return procedure for SMBJ64D-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64D-M3/H Tags
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