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Vishay General Semiconductor - Diodes Division SMBG36A-M3/52
- Part No.:
- SMBG36A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG36A-M3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,731
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Product details
Overview
SMBG36A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, with 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR at 1 mA), 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform-designed to protect MOSFETs and signal lines in automotive powertrain control modules.
For engineers reviewing the SMBG36A-M3/52 datasheet, SMBG36A-M3/52 pinout, SMBG36A-M3/52 application, or SMBG36A-M3/52 equivalent, key selection criteria include verified clamping performance under 10/1000 μs surge, AEC-Q101 qualification for automotive use, halogen-free RoHS compliance (M3 suffix), and thermal resistance (RθJA = 100 °C/W) on standard 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 36 V, then avalanches sharply at VBR = 40.0–44.2 V to divert transient energy, limiting downstream voltage to ≤58.1 V at 10.3 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM).
Designed for automated SMT assembly, it meets MSL Level 1 (peak reflow 260 °C), JESD201 Class 2 whisker resistance, and UL 497B recognition (QVGQ2). The SMBG (DO-215AA) package provides 150 °C max junction temperature operation and 100 A IFSM surge robustness for 8.3 ms half-sine pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Confirmed avalanche onset range ensuring reliable turn-on margin above VWM |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage during 10/1000 μs transient, defining worst-case stress on protected IC |
| PPPM | 600 W - Peak pulse power handling capability under standardized surge waveform |
| IFSM | 100 A - Non-repetitive forward surge current rating for 8.3 ms half-sine, critical for load-dump immunity |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on 5.0 mm × 5.0 mm copper pads, guiding PCB thermal design |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing lead form with cathode band marking. Dimensions: 6.48 mm × 3.94 mm × 2.41 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002/JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Completes conduction path during transient clamp; must be routed with low-inductance ground plane |
| Cathode | Current exit terminal in forward bias; marked by band, connected to protected line | Receives surge energy from protected node; polarity-sensitive placement prevents misapplication |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain and body electronics per stress test requirements |
| Halogen-free & RoHS compliant (M3) | Meets environmental compliance mandates without compromising surge robustness or thermal performance |
| 600 W peak pulse power (10/1000 μs) | Provides proven protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive gate drivers |
| MSL Level 1, 260 °C peak reflow | Enables compatibility with standard lead-free SMT reflow profiles without preconditioning |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting MCU GPIO and CAN transceiver pins from load dump and inductive switching spikes in engine control units. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between protected signal line and chassis ground. Use Value: Limits transient voltage to ≤58.1 V during 100 V/500 ms load dump events, preventing latch-up or gate oxide damage in 3.3 V/5 V logic interfaces. | Use Scenario: Safeguarding isolated gate driver inputs from flyback voltage spikes generated by IGBT switching in servo drives. IC Role / Device Role / Timing Role: Clamp device installed across input terminals of digital isolators or level shifters. Use Value: Responds in <1 ps to suppress >1 kV/μs transients, maintaining signal integrity and preventing false triggering of PWM control signals. |
| Telecom DC Power Feeds | Automotive Body Electronics |
Use Scenario: Secondary-level surge protection on -48 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of DC-DC converters and PMICs. Use Value: Withstands 100 A IFSM and clamps to 58.1 V, allowing downstream 60 V-rated input capacitors and regulators to survive repeated surges. | Use Scenario: Protecting LIN bus transceivers and sensor supply lines in door module ECUs subjected to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) unidirectional TVS tied between LIN line and ground. Use Value: Maintains <1 μA reverse leakage at 36 V, avoiding interference with LIN's 11–14 V signaling window while clamping ESD to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG36A-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Acceptable for industrial, non-automotive designs where halogen-free mandate does not apply | Select E3 when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not needed |
| SMBG36AHM3/52 | Identical electrical and mechanical specs; adds AEC-Q101 qualification (HM3 suffix) | Required for automotive safety-critical systems requiring full automotive qualification evidence | Choose HM3 for ASIL-B/C subsystems where formal AEC-Q101 test reports are mandated |
Compared with SMBG36A-M3/52, the E3 variant offers identical protection performance without halogen-free assurance, while the HM3 version adds formal AEC-Q101 validation-making SMBG36A-M3/52 the optimal balance of automotive-grade reliability, halogen-free compliance, and cost for Tier 1 body electronics and infotainment power rails.
Availability
SMBG36A-M3/52 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive inputs, and telecom DC power feeds requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMBG36A-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 protection devices with emphasis on reliability, automotive qualification, and high-power handling.
The SMBG Transient Voltage Suppressor family targets harsh-environment applications demanding high surge robustness, AEC-Q101 compliance, and precise clamping-specifically engineered for automotive, industrial, and telecom infrastructure protection.
FAQ
What is the clamping voltage of SMBG36A-M3/52 and how is it measured?
The SMBG36A-M3/52 has a maximum clamping voltage (VC) of 58.1 V, measured at a peak pulse current (IPPM) of 10.3 A using the standardized 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is guaranteed across the full operating temperature range per Vishay Document 88456.
Is SMBG36A-M3/52 suitable for automotive applications?
Yes, SMBG36A-M3/52 is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C, making it suitable for automotive body electronics, infotainment power rails, and non-safety-critical powertrain modules. Its M3 suffix confirms halogen-free, RoHS-compliant construction required by many Tier 1 automotive specifications.
What does the "M3/52" suffix mean in SMBG36A-M3/52?
The "M3" suffix indicates halogen-free, RoHS-compliant, industrial-grade construction per Vishay's material categorization; "52" denotes packaging in 7″ diameter plastic tape and reel with 750 units per reel. This differs from "HE3" (AEC-Q101 + RoHS) or "HM3" (AEC-Q101 + halogen-free), confirming SMBG36A-M3/52's position as an automotive-capable, environmentally compliant part without formal AEC-Q101 documentation.
How does SMBG36A-M3/52 compare to bidirectional TVS diodes like SMBG36CA?
SMBG36A-M3/52 is unidirectional and intended for DC circuits with defined polarity (e.g., protecting positive supply lines to ground), whereas SMBG36CA is bidirectional and used for AC or differential signal lines. The SMBG36A-M3/52 offers lower leakage (<1.0 μA) and higher IFSM (100 A), but cannot suppress negative-going transients-requiring correct polarity orientation during layout.
What PCB layout guidance applies to SMBG36A-M3/52 for optimal surge performance?
For optimal transient response, route SMBG36A-M3/52 with minimal trace length between protected node and ground, using 5.0 mm × 5.0 mm copper pads per terminal as specified in Vishay's thermal derating curves. Avoid vias in the current path; place the device adjacent to the connector or IC input it protects to reduce inductance and ensure clamping occurs before voltage overshoot reaches sensitive components.
SMBG36A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMBG36A-M3/52 FAQ
1.How can I place an order for SMBG36A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG36A-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 SMBG36A-M3/52 reliable?
The price and inventory of SMBG36A-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 SMBG36A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG36A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG36A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG36A-M3/52?
SMBG36A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG36A-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 SMBG36A-M3/52?
For technical support, including SMBG36A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG36A-M3/52 requirements.
6.How does Aetrix verify that SMBG36A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG36A-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 SMBG36A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG36A-M3/52?
All SMBG36A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG36A-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 SMBG36A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG36A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG36A-M3/52 Tags
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