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Vishay General Semiconductor - Diodes Division SMBG64CA-M3/52
- Part No.:
- SMBG64CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG64CA-M3/52.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,664
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Product details
Overview
SMBG64CA-M3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. It features a 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 103 V at 5.8 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG64CA-M3/52 datasheet, SMBG64CA-M3/52 pinout, SMBG64CA-M3/52 application, or SMBG64CA-M3/52 equivalent, key selection criteria include bidirectional clamping behavior, low leakage (<1 µA at VWM), MSL Level 1 moisture sensitivity, halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR, IPPM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the low incremental surge resistance enables effective energy diversion during ESD or lightning-induced transients.
The device is rated for -55 °C to +150 °C operating junction temperature, exhibits 100 °C/W typical junction-to-ambient thermal resistance (RθJA), and supports repetitive surge duty cycles up to 0.01 % - making it suitable for high-reliability industrial and automotive subsystems where transient immunity must be maintained across wide thermal ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on under surge conditions. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage during 600 W 10/1000 µs surge; determines maximum stress imposed on protected circuitry. |
| ID @ VWM | <1 µA - Reverse leakage current at stand-off voltage; critical for low-power sensor and battery-backed line integrity. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; validates suitability for IEC 61000-4-5 Level 3/4 surge events. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in engine bay, powertrain, and industrial control enclosures. |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic modules requiring zero-defect reliability under thermal cycling and mechanical shock. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical junction; conducts during positive voltage excursions above VBR. |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; conducts during negative voltage excursions exceeding |VBR|. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (e.g., 2 Ω source impedance, 40 A) without degradation. |
| AEC-Q101 qualification | Validates performance across automotive temperature cycling (-40 °C to +125 °C), humidity bias, and mechanical vibration profiles. |
| Halogen-free & RoHS compliant (M3) | Meets IPC-JEDEC J-STD-20 Class 2 whisker resistance and environmental compliance for Tier-1 automotive supply chains. |
| Low-profile SMBG package | Reduces board space vs. SMA/SMB; compatible with standard 0.2" × 0.2" copper pad layout for optimal thermal dissipation. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to limit transient amplitude before reaching sensitive PHY or ADC front-end. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (load dump up to 60 V) and IEC 61000-4-4 EFT bursts, preventing latch-up or permanent damage to 3.3 V/5 V logic. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines in factory automation gateways against ground bounce and cable discharge events. IC Role / Device Role / Timing Role: Common-mode TVS pair (one SMBG64CA-M3/52 per line) providing symmetrical clamping to ±103 V during 1 kV/500 A surge events. Use Value: Preserves CAN FD bit timing integrity by limiting overshoot/undershoot beyond transceiver common-mode range (±30 V), avoiding bus arbitration failure. |
| Telecom Power Feeding | Consumer USB-C Port Protection |
Use Scenario: Overvoltage suppression on PoE (Power over Ethernet) data pairs during hot-swap insertion or lightning-induced surges on outdoor telecom equipment. IC Role / Device Role / Timing Role: Bidirectional clamp on each twisted-pair conductor, referenced to local ground, absorbing common-mode energy before reaching PHY IC. Use Value: Enables compliance with IEEE 802.3bt Type 4 (up to 90 W) surge testing while maintaining <10 pF junction capacitance to avoid signal attenuation at 100 MHz. | Use Scenario: Protecting USB-C CC, VBUS, and SBU pins in portable devices against ESD (±15 kV contact) and accidental 20 V adapter misconnection. IC Role / Device Role / Timing Role: Discrete TVS array element for high-side VBUS line clamping, leveraging bidirectional symmetry to handle reverse-polarity faults. Use Value: Limits VBUS rail excursion to ≤103 V during 12 V adapter short-circuit events, preventing damage to USB PD controller and buck converter MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG64CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Approved for industrial-grade use only; lacks AEC-Q101 validation and JESD 201 Class 2 whisker resistance. | Select when halogen-free requirement is absent and automotive qualification is unnecessary. |
| SMBG64CAHM3/52 | Identical electrical and mechanical specs; adds AEC-Q101 qualification and halogen-free compliance (HM3 suffix). | Explicitly certified for automotive powertrain and ADAS modules per AEC-Q101 Rev D. | Prefer for safety-critical automotive designs requiring full qualification documentation traceability. |
Compared with SMBG64CA-M3/52, the E3 variant trades halogen-free content for lower cost in non-automotive settings, while the HM3 variant extends qualification rigor for ASIL-B systems - all three share identical clamping performance and SMBG footprint, enabling direct BOM substitution where compliance scope permits.
Availability
SMBG64CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, telecom PoE injectors, and consumer USB-C power delivery systems requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for SMBG64CA-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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency, and automotive-qualified components.
The SMBG TRANSZORB® series was developed specifically for surface-mount transient suppression in space-constrained, thermally demanding environments - targeting automotive infotainment, ADAS camera links, and industrial fieldbus interfaces where bidirectional clamping and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMBG64CA-M3/52 and how is it measured?
The SMBG64CA-M3/52 has a maximum clamping voltage (VC) of 103 V, measured at a peak pulse current (IPPM) of 5.8 A using a standardized 10/1000 µs double-exponential surge waveform. This value reflects the actual voltage seen by downstream circuitry during worst-case transient events and is guaranteed across the full operating temperature range (-55 °C to +150 °C). The SMBG64CA-M3/52 maintains this clamping performance due to its low dynamic impedance and glass-passivated junction structure.
Is SMBG64CA-M3/52 suitable for automotive applications?
Yes, SMBG64CA-M3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its construction meets JESD 201 Class 2 whisker resistance, MSL Level 1 reflow compatibility (peak 260 °C), and operates reliably from -55 °C to +150 °C junction temperature. The SMBG64CA-M3/52 is commonly deployed in CAN/LIN bus protection and power line conditioning within Tier-1 automotive modules.
How does the M3 suffix differ from E3 or HM3 in SMBG64CA-M3/52?
The M3 suffix in SMBG64CA-M3/52 denotes halogen-free, RoHS-compliant, and industrial-grade construction, whereas E3 is RoHS-compliant but contains halogens, and HM3 adds AEC-Q101 qualification to the halogen-free base. All three share identical electrical parameters and SMBG package dimensions, but only HM3 and M3 meet JESD 201 Class 2 whisker testing. The SMBG64CA-M3/52 is optimized for industrial and commercial automotive applications where halogen-free content is mandated but full AEC-Q101 documentation is not required.
What is the thermal resistance of SMBG64CA-M3/52 and how does it affect PCB layout?
SMBG64CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and thermal vias beneath the SMBG pads. Reducing RθJA via enhanced copper pour directly improves the SMBG64CA-M3/52's ability to sustain multiple 600 W pulses without thermal runaway.
Does SMBG64CA-M3/52 require polarity orientation during PCB placement?
No, SMBG64CA-M3/52 is a bidirectional TVS diode and carries no polarity marking on its SMBG (DO-215AA) package. It functions identically regardless of orientation, making it ideal for protecting AC-coupled lines, differential buses (e.g., CAN, RS-485), or floating sensor outputs. Unlike unidirectional variants (e.g., SMBG64A-M3/52), the SMBG64CA-M3/52 eliminates assembly errors related to cathode band alignment - a key advantage in high-volume SMT production.
SMBG64CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG64CA-M3/52 FAQ
1.How can I place an order for SMBG64CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG64CA-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 SMBG64CA-M3/52 reliable?
The price and inventory of SMBG64CA-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 SMBG64CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG64CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG64CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG64CA-M3/52?
SMBG64CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG64CA-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 SMBG64CA-M3/52?
For technical support, including SMBG64CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG64CA-M3/52 requirements.
6.How does Aetrix verify that SMBG64CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG64CA-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 SMBG64CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG64CA-M3/52?
All SMBG64CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG64CA-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 SMBG64CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBG64CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG64CA-M3/52 Tags
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