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Vishay General Semiconductor - Diodes Division SMBJ64CD-M3/H
- Part No.:
- SMBJ64CD-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CD-M3/H.pdf
- Description:
- TVS DIODE 64VWM 102VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:544
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Product details
Overview
SMBJ64CD-M3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 64 V stand-off voltage (VWM), 72.2–77.5 V breakdown voltage (VBR) at 1 mA, 102 V clamping voltage (VC) at 5.88 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects signal lines and power rails in industrial sensor interfaces and telecom power supplies.
For engineers reviewing the SMBJ64CD-M3/H datasheet, SMBJ64CD-M3/H pinout, SMBJ64CD-M3/H application, or SMBJ64CD-M3/H equivalent, this page delivers verified electrical parameters, bidirectional polarity behavior, thermal derating curves, MSL Level 1 reflow compatibility, and RoHS-compliant halogen-free construction - all critical for ESD and surge protection design validation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance whether subjected to positive or negative transients. Its low 0.5 μA maximum reverse leakage at VWM and ±3.5 % VBR tolerance ensure predictable turn-on behavior without false triggering in low-power analog or digital I/O circuits.
The device uses silicon avalanche junction technology optimized for fast response (<1 ns), low dynamic impedance, and stable clamping under repetitive surge conditions. Thermal resistance of 100 °C/W (junction-to-ambient, mounted on minimum pad layout) and 20 °C/W (junction-to-mount) supports reliable operation up to 150 °C junction temperature in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 72.2 V / 77.5 V at 1 mA - Tight ±3.5 % tolerance ensures consistent breakdown across production lots and temperature. |
| VC @ IPPM | 102 V at 5.88 A - Clamping voltage during 10/1000 μs surge; limits transient energy delivered to downstream components. |
| PPPM | 600 W - Peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | ≤0.5 μA - Ultra-low leakage preserves signal integrity and battery life in high-impedance sensor or standby circuits. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in industrial environments with elevated ambient temperatures. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; compatible with standard SMT reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no cathode band marking. Matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements; M3 suffix indicates halogen-free, RoHS-compliant, industrial-grade construction and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No polarity distinction - either end connects to protected line; clamps both positive and negative transients identically. |
| Cathode Band | Not present | Confirms bidirectional functionality; eliminates risk of incorrect orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise coordination with system overvoltage thresholds without margin stacking or overspecifying downstream components. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment up to Level 4 (4 kV line-to-line). |
| Low 0.5 μA leakage at VWM | Minimizes quiescent current draw in battery-powered or always-on sensor nodes, preserving operational lifetime. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and bake requirements, reducing manufacturing cost and cycle time. |
| Halogen-free, RoHS-compliant (M3) | Supports global environmental compliance mandates and simplifies supply chain qualification for export-oriented OEMs. |
Applications
| Industrial Sensor Signal Protection | Telecom DC Power Input Protection |
|---|---|
Use Scenario: Protecting 4–20 mA current loop outputs and RS-485 transceivers in factory automation PLC modules exposed to inductive switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transient energy before it reaches precision analog front-end or communication ICs. Use Value: Prevents latch-up or permanent damage to op-amps and transceivers by limiting voltage excursion to ≤102 V during 600 W surges, maintaining signal fidelity and system uptime. | Use Scenario: Safeguarding -48 V DC power inputs in telecom base station remote radio units subject to load dump and hot-swap events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input rail, coordinated with upstream fuse and downstream DC/DC converter overvoltage lockout. Use Value: Absorbs 10/1000 μs surges up to 5.88 A without degradation, enabling compliance with GR-1089-CORE immunity requirements while minimizing board space. |
| Automotive Body Control Module I/O | Consumer Smart Home Hub Power Rails |
Use Scenario: Shielding LIN bus lines and GPIOs in automotive BCMs from ISO 7637-2 Pulse 1/2a/3a transients during vehicle battery disconnection or alternator load dump. IC Role / Device Role / Timing Role: Secondary-level TVS deployed alongside primary fusing and LC filtering to handle residual energy that passes through front-end protection. Use Value: Withstands repeated 1000 V/50 Ω pulses at 10 Hz duty cycle due to low incremental surge resistance and stable clamping, extending module service life. | Use Scenario: Securing 5 V and 12 V power distribution networks in smart home hubs connected to USB-C PD adapters and PoE injectors. IC Role / Device Role / Timing Role: Point-of-load transient suppressor placed adjacent to PMIC inputs to prevent brownout or reset events caused by adapter switching noise. Use Value: Delivers sub-1 ns response and <102 V clamping to avoid false resets in ARM-based SoCs, supporting UL 62368-1 surge withstand 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-E3/52 (Vishay) | Same VWM/VBR/VC specs; differs only in packaging (tape-and-reel vs. bulk) and M3 vs. standard RoHS compliance. | No functional difference; used interchangeably where M3 halogen-free requirement is not mandated. | Select SMBJ64CD-M3/H when halogen-free, JESD 201 Class 2 whisker resistance, and industrial-grade reliability are required. |
| 1.5SMC64CA (Littelfuse) | Same SMB package and bidirectional 64 V rating, but higher 1.5 kW peak power and 100 A IPPM - larger junction area and different thermal design. | Higher power handling suits more severe surge environments (e.g., outdoor telecom cabinets), but requires larger PCB pad for thermal management. | Choose 1.5SMC64CA only if system-level testing confirms need for >600 W surge absorption; otherwise SMBJ64CD-M3/H offers optimal size/power balance. |
Compared with SMBJ64CA-E3/52, SMBJ64CD-M3/H adds halogen-free construction and whisker resistance without altering electrical performance; versus 1.5SMC64CA, it trades peak power headroom for smaller footprint and lower thermal mass - making it ideal for space-constrained, high-volume industrial PCBs requiring strict environmental compliance.
Availability
SMBJ64CD-M3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom power inputs, and automotive body control modules requiring stable component supply, long-term lifecycle support, and guaranteed halogen-free compliance.
Supply support for SMBJ64CD-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, precision, and application-specific optimization.
The SMBJ series was engineered for high-reliability transient suppression in harsh environments - targeting industrial automation, telecom infrastructure, and automotive subsystems where consistent clamping, tight tolerances, and reflow robustness are non-negotiable.
FAQ
What is the clamping voltage of SMBJ64CD-M3/H and how is it measured?
The SMBJ64CD-M3/H has a maximum clamping voltage (VC) of 102 V, measured at a peak pulse current (IPPM) of 5.88 A using a standardized 10/1000 μs double-exponential surge waveform. This value reflects the actual voltage seen by protected circuitry during worst-case transient events and is guaranteed across temperature and production lot variations per Vishay's 87606 specification document.
Is SMBJ64CD-M3/H unidirectional or bidirectional, and how does that affect circuit layout?
SMBJ64CD-M3/H is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients without polarity constraints. Unlike unidirectional variants, it lacks a cathode band - eliminating orientation sensitivity during automated placement and simplifying PCB layout for AC-coupled or floating signal lines such as RS-485 or CAN bus stubs.
Does SMBJ64CD-M3/H meet lead-free reflow requirements, and what is its MSL rating?
Yes, SMBJ64CD-M3/H meets lead-free reflow requirements with a peak temperature rating of 260 °C and is rated MSL Level 1 per J-STD-020 - indicating unlimited floor life and no baking required prior to assembly. The M3 suffix confirms compliance with JESD 201 Class 2 whisker resistance and halogen-free material composition, satisfying IPC-1752 and EU RoHS directives.
What is the maximum reverse leakage current for SMBJ64CD-M3/H at its stand-off voltage?
The maximum reverse leakage current (ID) for SMBJ64CD-M3/H is 0.5 μA when biased at its 64 V stand-off voltage (VWM) and tested at 25 °C. This ultra-low leakage ensures minimal impact on high-impedance sensor bridges, battery-monitoring circuits, and always-on microcontroller wake-up inputs - critical for energy-sensitive edge devices.
How does the thermal resistance of SMBJ64CD-M3/H affect its power dissipation capability?
SMBJ64CD-M3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended pad layout. This means a 1 W steady-state power dissipation raises junction temperature by ~100 °C above ambient - confirming why its rated DC power dissipation is limited to 1.0 W at 25 °C and derates linearly above that temperature, as shown in Figure 5 of the Vishay 87606 datasheet.
SMBJ64CD-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ64CD-M3/H FAQ
1.How can I place an order for SMBJ64CD-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CD-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 SMBJ64CD-M3/H reliable?
The price and inventory of SMBJ64CD-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 SMBJ64CD-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ64CD-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CD-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CD-M3/H?
SMBJ64CD-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CD-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 SMBJ64CD-M3/H?
For technical support, including SMBJ64CD-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CD-M3/H requirements.
6.How does Aetrix verify that SMBJ64CD-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ64CD-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 SMBJ64CD-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ64CD-M3/H?
All SMBJ64CD-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CD-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 SMBJ64CD-M3/H part is unused and in its original packaging.
Return procedure for SMBJ64CD-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CD-M3/H Tags
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Diodes Incorporated
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