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Vishay General Semiconductor - Diodes Division SMBJ64CA-M3/52
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- Part No.:
- SMBJ64CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CA-M3/52.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,908
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Product details
Overview
SMBJ64CA-M3/52 from Vishay General Semiconductor is a bidirectional 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 standoff voltage (VWM), 71.1–78.6 V breakdown range (VBR at 1 mA), 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ64CA-M3/52 datasheet, SMBJ64CA-M3/52 pinout, SMBJ64CA-M3/52 application, or SMBJ64CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.37), halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical electrical characteristics in forward and reverse directions per ANSI/IEEE C62.35. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
The device is rated for repetitive 600 W pulses at 0.01% duty cycle and derates linearly above 25 °C ambient, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets MSL Level 1 per J-STD-020 and supports peak surge currents up to 5.8 A under standardized 10/1000 µs waveform conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown range ensures reliable triggering without premature conduction during normal operation. |
| VC @ IPPM | 103 V at 5.8 A - Clamping voltage limits transient energy delivered to protected circuitry; clamping ratio = 103/71.1 ≈ 1.45. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; determines survivability against lightning-induced surges and load dump events. |
| IPPM | 5.8 A - Peak pulse current derived from PPPM/VC; validates protection level for typical industrial IEC 61000-4-5 surge test profiles. |
| TJ max | +150 °C - Maximum junction temperature enables use in high-ambient environments such as enclosed power converters and base station equipment. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with JEDEC-standard reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration with no polarity marking; symmetrical terminals function identically as anode and cathode depending on applied voltage polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on instantaneous voltage polarity; no band marking required. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamping path across protected line and ground or differential pair. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., RS-485), or ungrounded DC rails without polarity concerns. |
| 600 W peak pulse power | Supports compliance with IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity requirements in industrial control systems. |
| Halogen-free, RoHS-compliant (M3) | Meets environmental compliance mandates for consumer electronics and automotive supply chains without compromising surge robustness. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow processing without baking, reducing manufacturing overhead in high-volume SMT lines. |
| Low clamping ratio (VC/VBR) | Ratio of 1.45 ensures minimal overvoltage stress on downstream components during transient events, preserving IC reliability. |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Suppression |
|---|---|
|
Use Scenario: Protecting 48 V DC input stage of programmable logic controller (PLC) power module against load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional TVS placed between input rail and chassis ground to clamp ±100 V transients within 1 ns. Use Value: Limits voltage excursion to ≤103 V, preventing damage to upstream rectifiers and downstream DC-DC controllers rated for 75 V max input. |
Use Scenario: Safeguarding RS-485 transceiver inputs in outdoor base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Differential-mode TVS across A/B bus lines to suppress common-mode transients up to 600 W without signal distortion. Use Value: Maintains signal integrity by clamping within 103 V while exhibiting <1 pF junction capacitance at zero bias, minimizing data rate degradation. |
| Automotive Body Control Module (BCM) | Consumer Appliance Motor Drive Interface |
|
Use Scenario: Protecting LIN bus interface in BCM against battery reverse connection and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional clamping device connected between LIN line and ground to absorb ±60 V spikes with sub-nanosecond response. Use Value: Survives 100 A surge (8.3 ms half-sine) per AEC-Q101 qualification when used with appropriate PCB copper area, ensuring long-term field reliability. |
Use Scenario: Shielding microcontroller GPIOs driving brushed DC motors in smart washing machine control boards from commutation noise. IC Role / Device Role / Timing Role: Local TVS mounted adjacent to motor driver IC output pins to shunt inductive flyback energy before it couples into logic circuitry. Use Value: Reduces EMI-induced MCU resets by limiting transient amplitude to 103 V, enabling stable operation at 20 kHz PWM frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Acceptable where halogen-free requirement is not enforced (e.g., non-EU commercial products). | Select SMBJ64CA-E3/52 if environmental compliance allows standard RoHS without halogen restriction. |
| SMAJ64CA-M3 | Lower 400 W PPPM, larger VC (104 V), SMA package (smaller footprint, higher thermal resistance). | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 3+ testing. | Choose SMAJ64CA-M3 only when board space is constrained and surge threat level is reduced (e.g., secondary-side protection). |
Compared with SMBJ64CA-E3/52, the SMBJ64CA-M3/52 offers halogen-free construction essential for EU automotive and industrial markets; versus SMAJ64CA-M3, it delivers 50% higher surge power handling and lower thermal resistance - making it the preferred choice for primary-side protection in harsh environments.
Availability
SMBJ64CA-M3/52 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, automotive body control modules, and consumer appliance motor drive interfaces requiring stable component supply and halogen-free compliance.
Supply support for SMBJ64CA-M3/52 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, and transient protection devices with emphasis on reliability and application-specific performance.
The SMBJ series was developed for high-power, surface-mount transient suppression in demanding industrial and automotive environments - prioritizing robust clamping, low leakage, and automated assembly compatibility.
FAQ
What is the maximum clamping voltage of SMBJ64CA-M3/52 under standard test conditions?
The SMBJ64CA-M3/52 has a maximum clamping voltage (VC) of 103 V when subjected to its rated peak pulse current of 5.8 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ64CA-M3/52 maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ64CA-M3/52 suitable for protecting RS-485 communication lines?
Yes, SMBJ64CA-M3/52 is well-suited for RS-485 line protection due to its bidirectional symmetry, low junction capacitance (<1.5 pF at zero bias), and fast response time (<1 ns). It can be placed differentially across A/B lines or common-mode to ground, clamping transients up to 103 V without distorting signal edges at data rates up to 20 Mbps. The SMBJ64CA-M3/52's 64 V standoff also aligns with typical RS-485 common-mode voltage ranges.
Does SMBJ64CA-M3/52 meet AEC-Q101 qualification?
No, SMBJ64CA-M3/52 is not AEC-Q101 qualified. It carries the M3 suffix indicating halogen-free, RoHS-compliant commercial-grade construction. For automotive-qualified versions, Vishay offers the SMBJ64CA-HM3_X series (e.g., SMBJ64CA-HM3_A), which adds AEC-Q101 qualification while retaining identical electrical specs and SMB package. Always verify the full part number suffix when selecting for automotive applications.
What is the thermal resistance of SMBJ64CA-M3/52, and how does it affect layout design?
The SMBJ64CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W. To maintain safe operation under repetitive surges, PCB layout must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing RθJA via additional copper pour or thermal vias directly improves surge endurance and steady-state power dissipation capability for the SMBJ64CA-M3/52.
How does the M3 suffix differ from E3 in SMBJ64CA-M3/52?
The M3 suffix in SMBJ64CA-M3/52 denotes halogen-free, RoHS-compliant construction, whereas E3 indicates RoHS-compliant but not halogen-free. Both share identical electrical specifications, SMB package, and MSL Level 1 rating. The SMBJ64CA-M3/52 satisfies stricter environmental regulations such as IEC 61249-2-21 and is required for products targeting EU automotive or green electronics certifications where brominated flame retardants are prohibited.
SMBJ64CA-M3/52 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):
- 71.7V
- 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:
- DO-214AA (SMBJ)
SMBJ64CA-M3/52 FAQ
1.How can I place an order for SMBJ64CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CA-M3/52 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 SMBJ64CA-M3/52 reliable?
The price and inventory of SMBJ64CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ64CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CA-M3/52?
SMBJ64CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CA-M3/52 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 SMBJ64CA-M3/52?
For technical support, including SMBJ64CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ64CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ64CA-M3/52 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 SMBJ64CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ64CA-M3/52?
All SMBJ64CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CA-M3/52, 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 SMBJ64CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ64CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CA-M3/52 Tags
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