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Vishay General Semiconductor - Diodes Division SMBG100A-M3/5B
- Part No.:
- SMBG100A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100A-M3/5B.pdf
- Description:
- TVS DIODE 100VWM 162VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,474
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Product details
Overview
SMBG100A-M3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power electronics, industrial sensor interfaces, and telecom surge protection circuits.
For engineers reviewing the SMBG100A-M3/5B datasheet, SMBG100A-M3/5B pinout, SMBG100A-M3/5B application, or SMBG100A-M3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), 150 °C max junction temperature, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below VWM = 100 V and rapidly transitions to low-impedance conduction above VBR = 111–123 V to divert transient energy. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while its thermal resistance (RθJA = 100 °C/W) supports operation up to TJ = 150 °C under defined PCB pad conditions.
The SMBG100A-M3/5B is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits fast response time (<1 ns), low incremental surge resistance, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. It is not intended for bidirectional use - polarity is marked by cathode band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT = 1 mA | 111–123 V - Breakdown threshold range defining reliable turn-on under standardized test current |
| VC @ IPPM = 3.7 A | 162 V - Clamped voltage during 10/1000 μs transient, limiting downstream stress |
| PPPM | 600 W - Peak pulse power handling capability per single 10/1000 μs event at 0.01% duty cycle |
| IFSM | 100 A - Surge current withstand for 8.3 ms half-sine wave, critical for load-dump immunity |
| TJ max | 150 °C - Maximum junction temperature enabling use in under-hood automotive environments |
| Leakage @ VWM | <1.0 μA - Minimal standby power loss and signal integrity impact in high-impedance circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or low-potential node; conducts during positive transients on cathode side |
| Cathode | High-side connection with polarity marking band | Connected to protected line (e.g., 12 V rail); clamps voltage when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 600 W peak pulse power (10/1000 μs) | Enables protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events in 12 V systems |
| Halogen-free & RoHS compliant (M3 suffix) | Meets environmental compliance requirements for industrial and automotive supply chains without compromising performance |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or dry-pack requirements |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift over time, and improved long-term reliability vs. epoxy-passivated alternatives |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a) and alternator switching spikes. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power input and ground, acting as first-line overvoltage shunt. Use Value: Limits voltage seen by downstream regulators and microcontrollers to ≤162 V during 100 V nominal rail surges, preventing latch-up or permanent damage. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, LIN) from ESD and inductive kickback in factory automation sensors. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) TVS connected across signal line and ground, preserving signal fidelity during normal operation. Use Value: Clamps fast transients (<1 ns response) to safe levels without loading the 100 kΩ+ sensor output impedance, maintaining measurement accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Securing 48 V PoE-powered equipment inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main DC input rail upstream of DC/DC converters. Use Value: Withstands 600 W pulses and 100 A surge current, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) when combined with appropriate series impedance. | Use Scenario: Adding robustness to USB-C or barrel-jack DC inputs in portable audio/video gear against misconnected adapters and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line referenced to chassis ground, activated only during overvoltage events. Use Value: Halogen-free M3 construction satisfies consumer product environmental mandates while delivering 162 V clamping to protect USB PD controllers and charging ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG100A-E3/5B | Same electrical specs, but RoHS-compliant with standard (non-halogen-free) molding compound | Acceptable where halogen-free requirement is not mandated (e.g., non-automotive industrial) | Select SMBG100A-E3/5B if halogen-free certification is not required and cost optimization is prioritized |
| SMBJ100A-M3/5B | Same VWM/VBR/VC, but SMBJ package (DO-214AB) has higher RθJA (110 °C/W) and lower IFSM (75 A) | Limited suitability for high-energy load dump; preferred where board space allows larger footprint | Choose SMBJ100A-M3/5B only if SMBG footprint is unavailable and thermal derating is acceptable |
Compared with SMBG100A-E3/5B and SMBJ100A-M3/5B, the SMBG100A-M3/5B uniquely combines halogen-free compliance, AEC-Q101 qualification, and SMBG's optimized thermal performance (RθJA = 100 °C/W) - making it the preferred choice for automotive and high-reliability industrial designs requiring both environmental and functional rigor.
Availability
SMBG100A-M3/5B is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, telecom power supplies, and consumer DC-input protection requiring stable component supply and full traceability.
Supply support for SMBG100A-M3/5B 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, efficiency, and application-specific validation.
The SMBG series was engineered for high-power, surface-mount transient suppression in space-constrained automotive and industrial environments - balancing clamping performance, thermal robustness, and manufacturability in automated SMT lines.
FAQ
What is the clamping voltage of SMBG100A-M3/5B at its rated peak pulse current?
The SMBG100A-M3/5B has a maximum clamping voltage (VC) of 162 V at a peak pulse current (IPPM) of 3.7 A, measured using the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is confirmed in the Vishay datasheet Document Number 88456, Table on page 2. The SMBG100A-M3/5B maintains this clamping performance across its specified operating temperature range.
Is SMBG100A-M3/5B suitable for bidirectional transient protection?
No, SMBG100A-M3/5B is a unidirectional TVS diode - its cathode is marked with a band and it conducts only when the cathode is at higher potential than the anode. For bidirectional protection, Vishay offers the SMBG100CA-M3/5B variant. Using SMBG100A-M3/5B in a bidirectional configuration would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always verify polarity during layout for SMBG100A-M3/5B.
Does SMBG100A-M3/5B meet automotive qualification standards?
Yes, SMBG100A-M3/5B is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number 88456, page 1, "FEATURES" section and page 3, "THERMAL CHARACTERISTICS" note). This qualification covers stress tests including temperature cycling, high-temperature operating life, and ESD, confirming suitability for automotive powertrain, body, and infotainment applications. The M3 suffix further indicates halogen-free construction required by many Tier 1 automotive suppliers.
What is the maximum operating junction temperature for SMBG100A-M3/5B?
The maximum operating junction temperature (TJ) for SMBG100A-M3/5B is +150 °C, as specified in the "MAXIMUM RATINGS" table (page 1) of the Vishay datasheet. This rating assumes mounting on the recommended 0.2" × 0.2" copper pads per terminal. Derating applies above 25 °C ambient, per Figure 2 in the same document. The SMBG100A-M3/5B's thermal resistance (RθJA = 100 °C/W) enables reliable operation within this limit under typical PCB layout conditions.
How does the M3 suffix differ from E3 in SMBG100A-M3/5B?
The M3 suffix in SMBG100A-M3/5B denotes halogen-free, RoHS-compliant construction with industrial-grade reliability, whereas E3 indicates RoHS-compliant but standard (non-halogen-free) molding compound. Both share identical electrical specifications and package dimensions, but M3 meets stricter environmental mandates such as those in automotive and green electronics programs. The SMBG100A-M3/5B also carries AEC-Q101 qualification, which is not guaranteed for the E3 version unless explicitly designated (e.g., HE3/HM3).
SMBG100A-M3/5B 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.7A
- 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)
SMBG100A-M3/5B FAQ
1.How can I place an order for SMBG100A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100A-M3/5B 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 SMBG100A-M3/5B reliable?
The price and inventory of SMBG100A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG100A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG100A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100A-M3/5B?
SMBG100A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100A-M3/5B 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 SMBG100A-M3/5B?
For technical support, including SMBG100A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100A-M3/5B requirements.
6.How does Aetrix verify that SMBG100A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG100A-M3/5B 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 SMBG100A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG100A-M3/5B?
All SMBG100A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100A-M3/5B, 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 SMBG100A-M3/5B part is unused and in its original packaging.
Return procedure for SMBG100A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100A-M3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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