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Diodes Incorporated SMBJ64A-13-F
- Part No.:
- SMBJ64A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64A-13-F.pdf
- Description:
- TVS DIODE 64V 103V SMB
- Quantity:
- Payment:
- Shipping:
Inventory:638
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Product details
Overview
SMBJ64A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 64V reverse standoff voltage, 71.1V minimum breakdown voltage at 1mA, 103V maximum clamping voltage at 5.8A peak pulse current, and SMB package. It protects DC power rails and signal lines in industrial motor drives, telecom power supplies, and automotive body control modules against ESD and lightning-induced surges.
For engineers reviewing the SMBJ64A-13-F datasheet, SMBJ64A-13-F pinout, SMBJ64A-13-F application, or SMBJ64A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current capability under 8.3ms half-sine waveform, thermal derating above +25°C, and RoHS-compliant matte tin plating for lead-free reflow compatibility.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias (VRWM = 64V), leakage remains ≤5.0μA; during transients exceeding VBR (min 71.1V), it avalanches to clamp at ≤103V while diverting up to 5.8A peak pulse current. Its glass-passivated die ensures stable breakdown characteristics across temperature.
The device uses a single PN junction structure with cathode-band polarity marking, optimized for fast response (<1ps typical) to ESD events per IEC 61000-4-2 Level 4 (±15kV contact). Thermal performance is defined by 4.8W/°C derating above +25°C ambient and 5.0W steady-state dissipation at TL = +75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 8.3ms surge without failure; defines maximum energy absorption capability |
| Reverse Standoff Voltage | 64V - maximum continuous DC or RMS voltage before significant leakage; sets operating rail ceiling |
| Breakdown Voltage | 71.1–81.8V @ 1mA - guaranteed avalanche onset range; determines minimum overvoltage threshold |
| Clamping Voltage | 103V @ 5.8A - maximum voltage seen by protected circuit during rated surge; critical for IC survivability |
| Peak Pulse Current | 5.8A - maximum transient current the device can safely shunt at specified waveform and temperature |
| Leakage Current | ≤5.0μA @ 64V - ensures minimal standby power loss and no interference with high-impedance sensing nodes |
| Operating Temperature | −55°C to +150°C - supports under-hood automotive and industrial environments without derating loss |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with UL 94V-0 flammability rating, 0.1g weight, and matte tin-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during reverse-biased surge | Connected to protected line; carries full transient current into ground path |
| Cathode | Current exit during reverse-biased surge | Connected to system ground; forms low-inductance return path for clamping current |
| Cathode Band | Polarity indicator | Visible marking on package top surface; confirms unidirectional orientation for correct PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 3 (1kV/2Ω) surges on 24V industrial buses |
| Glass-passivated die construction | Ensures long-term parameter stability and resistance to humidity-induced degradation in harsh environments |
| Lead-free, RoHS-compliant finish | Meets IPC-J-STD-020 moisture sensitivity level 1 for standard SMT reflow without baking |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream 75V-rated MOSFETs or 65V-input PMICs |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of 48V DC bus inputs against load dump and inductive kickback in servo amplifier modules. IC Role / Device Role: Shunt TVS placed between bus and chassis ground, triggered only during >71V transients. Use Value: Clamps 103V max during 5.8A surge, keeping bus voltage below 75V rating of downstream buck controller ICs. |
Use Scenario: Input-stage surge suppression on −48V telecom rectifier outputs feeding distributed power architecture. IC Role / Device Role: Unidirectional clamping device referenced to system ground, absorbing positive-going transients on negative rail. Use Value: 64V standoff allows operation across full −48V ±10% tolerance while clamping <103V to protect -53V-rated DC-DC converters. |
| Automotive Body Control Modules | Industrial PLC I/O Terminals |
|
Use Scenario: CAN bus power line protection in BCMs exposed to ISO 7637-2 pulse 1 (inductive switch-off) and pulse 2a (load dump). IC Role / Device Role: Primary overvoltage clamp on 12V supply rail upstream of CAN transceiver LDO regulators. Use Value: Withstands 100A surge current derated to 5.8A at 64V standoff, limiting rail excursion to safe levels for 16V-rated regulators. |
Use Scenario: 24V digital input protection in programmable logic controllers subjected to field-wiring induced transients per IEC 61000-4-4. IC Role / Device Role: Front-end TVS on dry-contact input channels, placed before optocoupler input resistors. Use Value: 5.0μA leakage at 64V prevents false triggering of 2.5mA input threshold circuits; 103V clamping preserves optocoupler CTR integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA-13-F | Bi-directional version; symmetric clamping for AC-coupled or dual-polarity rails | Required for RS-485 data lines or audio signal paths with no DC bias reference | Select only when bidirectional protection is needed; otherwise unidirectional offers lower leakage and tighter VBR tolerance |
| SMCJ64A-13-F | Same VRWM but higher 1500W rating; larger SMC (DO-214AB) package with 12.5A IPP | Used where higher surge energy (e.g., outdoor telecom cabinets) exceeds SMBJ's 600W limit | Choose SMCJ only if system-level surge testing requires >600W margin; SMBJ64A suffices for most board-level IEC 61000-4-2/4-5 compliance |
Compared with SMBJ64CA-13-F and SMCJ64A-13-F, SMBJ64A-13-F provides optimal balance of compact SMB footprint, 64V standoff precision, and sufficient 600W surge capacity for space-constrained industrial and automotive PCBs-without over-specifying size or cost.
Availability
SMBJ64A-13-F is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBJ64A-13-F 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design and manufacturing operations across Asia, Europe, and the US.
The SMBJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for board-level ESD and surge protection in industrial, automotive, and communications equipment where reliability under repetitive transient stress is critical.
FAQ
What is the maximum clamping voltage of SMBJ64A-13-F at its rated peak pulse current?
The maximum clamping voltage is 103V at 5.8A peak pulse current under the standardized 8.3ms half-sine waveform condition. This value is measured with the device mounted on a standard FR-4 PCB per JEDEC standards and represents the upper voltage limit imposed on the protected circuit during worst-case surge events.
Is SMBJ64A-13-F suitable for protecting a 60V-rated DC-DC converter input?
Yes. With a 64V reverse standoff voltage and 103V clamping voltage, it provides 3V margin above the 60V rating during normal operation and limits surge exposure to 103V - well within the 120V absolute maximum rating typical of industrial-grade 60V-input converters, assuming proper PCB layout and grounding.
How does the SMBJ64A-13-F differ from the bi-directional SMBJ64CA-13-F in layout and function?
SMBJ64A-13-F has a cathode band marking and conducts only during positive transients on the anode side; SMBJ64CA-13-F lacks polarity marking and clamps symmetrically for both polarities. Layout must orient the cathode band toward the protected line's positive rail for unidirectional use, whereas the bi-directional version requires no orientation.
What is the thermal derating behavior of SMBJ64A-13-F above +25°C ambient?
Its peak pulse power derates linearly at 4.8W/°C above +25°C ambient, meaning at +75°C ambient, maximum usable peak pulse power drops to 360W (600W − 4.8W × 50°C). This reflects reduced silicon thermal capacity and must be accounted for in high-temperature enclosure designs.
SMBJ64A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMBJ64A-13-F FAQ
1.How can I place an order for SMBJ64A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64A-13-F 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 SMBJ64A-13-F reliable?
The price and inventory of SMBJ64A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ64A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64A-13-F?
SMBJ64A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64A-13-F 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 SMBJ64A-13-F?
For technical support, including SMBJ64A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64A-13-F requirements.
6.How does Aetrix verify that SMBJ64A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ64A-13-F 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 SMBJ64A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ64A-13-F?
All SMBJ64A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64A-13-F, 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 SMBJ64A-13-F part is unused and in its original packaging.
Return procedure for SMBJ64A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64A-13-F Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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