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Vishay General Semiconductor - Diodes Division SMBJ64D-M3/I
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- Part No.:
- SMBJ64D-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64D-M3/I.pdf
- Description:
- TVS DIODE 64VWM 102VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,154
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Product details
Overview
SMBJ64D-M3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails 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 - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ64D-M3/I datasheet, SMBJ64D-M3/I pinout, SMBJ64D-M3/I application, or SMBJ64D-M3/I equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge, M3-grade halogen-free RoHS compliance, and bidirectional alternative options - all aligned to Vishay Document #87606 (Rev. 09-Jan-2024).
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range (72.2–77.5 V). Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced transients, and inductive switching spikes on 48–60 V systems.
Thermal design relies on junction-to-ambient thermal resistance of 125 °C/W (on minimum pad layout) and 100 °C/W (on 5 mm × 5 mm copper pad), with maximum junction temperature rated at +150 °C. Power dissipation is derated linearly above TA = 25 °C, dropping to 5.0 W at TM = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 48 V or 60 V systems. |
| VBR (Breakdown Voltage) | 72.2–77.5 V at 1 mA - tight ±3.5 % tolerance ensures predictable turn-on across production lots. |
| VC (Clamping Voltage) | 102 V at IPPM = 5.88 A - limits transient voltage seen by protected ICs during 10/1000 μs surge events. |
| PPPM (Peak Pulse Power) | 600 W - sustains standardized lightning/surge immunity per IEC 61000-4-5 (10/1000 μs) at 0.01 % duty cycle. |
| ID (Reverse Leakage) | ≤0.5 μA at VWM - negligible standby current avoids battery drain or sensor offset in always-on circuits. |
| TJ max | +150 °C - supports operation in under-hood automotive or industrial enclosures without thermal shutdown. |
| Package | SMB (DO-214AA) - industry-standard SMD outline with 2.20 mm height, compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VBR. |
| Anode | Reference / ground return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise coordination with downstream overvoltage protection thresholds in multi-stage clamp designs. |
| 600 W PPPM (10/1000 μs) | Meets IEC 61000-4-5 Level 3/4 surge immunity requirements for industrial and telecom equipment. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture-related popcorning or delamination. |
| M3 suffix compliance | Halogen-free, RoHS-compliant, and qualified to JESD 201 Class 2 whisker resistance for long-term reliability. |
| Low leakage (≤0.5 μA) | Preserves accuracy in high-impedance sensor bias networks and extends battery life in portable systems. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate drivers and bus voltage sense circuits against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role: Unidirectional TVS placed between DC bus and ground to clamp transients up to 600 W. Use Value: Limits voltage overshoot to ≤102 V during 5.88 A surges, preventing gate oxide rupture in 600 V-class power semiconductors. |
Use Scenario: Input stage surge suppression on -48 V DC distribution boards in central office equipment. IC Role / Device Role: Primary clamping device on feed lines entering DC/DC converters and line cards. Use Value: Maintains <0.5 μA leakage at nominal -48 V, avoiding false fault detection while clamping lightning-induced spikes to 102 V. |
| Automotive Body Control Modules | Industrial PLC I/O Terminals |
|
Use Scenario: CAN/LIN bus line protection and 12/24 V supply rail conditioning in BCMs exposed to load dump. IC Role / Device Role: Standoff-rated TVS on VBAT-derived rails to absorb ISO 7637-2 Pulse 5a (load dump) energy. Use Value: Withstands 64 V continuous operation and clamps 102 V peak during 5.88 A transients, meeting AEC-Q200 stress screening. |
Use Scenario: 24 V digital input protection against field-wiring transients and ESD in programmable logic controllers. IC Role / Device Role: First-line defense on dry-contact inputs, placed before optocoupler or Schmitt trigger input stages. Use Value: Tight VBR tolerance ensures consistent trip point across temperature, reducing false triggering in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CD-M3/I | Bidirectional variant; same VWM (64 V), VBR (72.2–77.5 V), and VC (102 V), but symmetric conduction in both polarities. | Required where AC-coupled signals or dual-polarity transients (e.g., RS-485, Ethernet PHY) must be suppressed without polarity assumptions. | Select SMBJ64CD-M3/I only if bidirectional clamping is required; unidirectional SMBJ64D-M3/I offers lower leakage in DC-biased rails. |
| SMAJ64A-M3/84A | Lower PPPM (400 W), higher VC (104 V at 4.2 A), SMA package (smaller footprint, higher RθJA = 150 °C/W). | Suitable for space-constrained consumer electronics with lower surge exposure; not recommended for industrial 600 W surge requirements. | Choose SMAJ64A-M3/84A only for cost-sensitive, low-energy applications; SMBJ64D-M3/I provides 50 % higher surge margin and better thermal performance. |
Compared with SMBJ64CD-M3/I, the SMBJ64D-M3/I delivers lower reverse leakage in DC systems and avoids unnecessary bidirectional conduction losses; versus SMAJ64A-M3/84A, it provides 50 % higher peak pulse power handling and superior thermal management on standard PCB layouts.
Availability
SMBJ64D-M3/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, M3-grade halogen-free compliance, and 600 W surge immunity.
Supply support for SMBJ64D-M3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and ruggedized performance.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting industrial automation, telecom infrastructure, and automotive subsystems where robustness and repeatable clamping are critical.
FAQ
What is the maximum clamping voltage of SMBJ64D-M3/I at its rated peak pulse current?
The SMBJ64D-M3/I has a maximum clamping voltage (VC) of 102 V at its rated peak pulse current (IPPM) of 5.88 A, measured using the standard 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and ensures downstream ICs see no more than 102 V during worst-case transients. The SMBJ64D-M3/I datasheet (Document #87606) confirms this parameter under "Electrical Characteristics".
Is SMBJ64D-M3/I suitable for protecting 48 V DC power rails?
Yes, SMBJ64D-M3/I is specifically suited for 48 V DC rail protection: its 64 V stand-off voltage (VWM) provides a 16 V safety margin above nominal 48 V, while its 72.2–77.5 V breakdown range ensures reliable activation only during overvoltage events. The SMBJ64D-M3/I's low leakage (<0.5 μA) prevents loading of sensitive regulation circuits, and its 600 W PPPM handles typical load-dump and inductive-switching transients found in 48 V systems.
Does SMBJ64D-M3/I meet RoHS and halogen-free requirements?
Yes, the "M3" suffix in SMBJ64D-M3/I certifies full compliance with RoHS Directive 2011/65/EU and halogen-free standards per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and the matte tin-plated terminals satisfy JESD 201 Class 2 whisker resistance. This is documented in Vishay's ordering information table and material categorization notice (www.vishay.com/doc?99912).
What is the thermal resistance of SMBJ64D-M3/I on standard PCB layout?
The SMBJ64D-M3/I exhibits a typical junction-to-ambient thermal resistance (RθJA) of 125 °C/W when mounted on the minimum recommended pad layout, and 100 °C/W on a 5.0 mm × 5.0 mm copper pad area. These values directly impact steady-state power dissipation: at TA = 25 °C, SMBJ64D-M3/I supports 1.0 W; derating reduces this to 5.0 W at TM = 50 °C. Thermal performance is validated in Figure 5 of the SMBJ64D-M3/I datasheet.
How does SMBJ64D-M3/I differ from SMBJ64CD-M3/I?
SMBJ64D-M3/I is unidirectional, with polarity marked by a cathode band and optimized for DC-biased rails; SMBJ64CD-M3/I is bidirectional, lacking a polarity marker and conducting symmetrically in both directions. Both share identical VWM (64 V), VBR (72.2–77.5 V), and VC (102 V), but SMBJ64D-M3/I offers lower reverse leakage (<0.5 μA vs. same spec) in single-polarity applications. The choice depends strictly on signal polarity requirements - SMBJ64D-M3/I is preferred for 48 V power rails, SMBJ64CD-M3/I for AC or differential buses.
SMBJ64D-M3/I 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/I FAQ
1.How can I place an order for SMBJ64D-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64D-M3/I 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/I reliable?
The price and inventory of SMBJ64D-M3/I 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/I is usually 5 days.
3.What payment methods are accepted for SMBJ64D-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64D-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64D-M3/I?
SMBJ64D-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64D-M3/I 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/I?
For technical support, including SMBJ64D-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64D-M3/I requirements.
6.How does Aetrix verify that SMBJ64D-M3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ64D-M3/I 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/I meets industry standards.
7.What is the process for return or replacement of SMBJ64D-M3/I?
All SMBJ64D-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64D-M3/I, 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/I part is unused and in its original packaging.
Return procedure for SMBJ64D-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64D-M3/I Tags
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Diodes Incorporated
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