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Vishay General Semiconductor - Diodes Division SMBG100A-M3/52
- Part No.:
- SMBG100A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100A-M3/52.pdf
- Description:
- TVS DIODE 100VWM 162VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,198
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Product details
Overview
SMBG100A-M3/52 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 supply inputs and industrial sensor interfaces.
For engineers reviewing the SMBG100A-M3/52 datasheet, SMBG100A-M3/52 pinout, SMBG100A-M3/52 application, or SMBG100A-M3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and polarity marking guidance for reliable PCB-level surge protection design.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity identification, leveraging glass-passivated junction technology for stable avalanche behavior under repetitive transients. Its 150 °C maximum junction temperature and MSL Level 1 moisture sensitivity support reflow-compatible SMT assembly without preconditioning.
The SMBG100A-M3/52 delivers low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5). Its 100 A IFSM rating supports high-energy 8.3 ms half-sine surge events on power lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V–48 V systems. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed breakdown range ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 162 V at 3.7 A - Clamping voltage during 10/1000 µs surge limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power handling capability enables protection against high-energy transients per ISO 7637-2 and IEC 61000-4-5. |
| IFSM | 100 A - Surge current rating for 8.3 ms half-sine wave supports automotive load-dump immunity. |
| TJ max. | 150 °C - Junction temperature limit allows operation in under-hood automotive environments and industrial enclosures. |
| RθJA | 100 °C/W - Thermal resistance informs heatsinking requirements when mounted on 5 mm × 5 mm copper pads. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by molded band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side return path | Provides reference node for clamping action; must be routed with low-inductance path to ground plane. |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line (e.g., +12 V rail) | Defines polarity-sensitive placement - reversal disables clamping function and risks catastrophic failure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control units and ADAS power domains. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets IPC-1752 material declaration requirements and EU Directive 2011/65/EU - supports green manufacturing and export compliance. |
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) up to 12 V systems without parallel staging. |
| Low RθJA = 100 °C/W | Allows sustained operation at 125 °C ambient with ≤1 W steady-state dissipation when used in low-duty-cycle surge scenarios. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal aging and humidity exposure. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between input rail and chassis ground, activated within <1 ns of overvoltage onset. Use Value: Limits peak voltage to ≤162 V during 3.7 A surge, preventing damage to upstream DC/DC converters and microcontrollers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) in factory automation sensors from EFT bursts and cable coupling noise. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 100 pF at 0 V) unidirectional clamp shunting transients to ground before reaching ADC front-end. Use Value: Maintains signal integrity under IEC 61000-4-4 Level 4 (4 kV) while adding <0.1% gain error due to leakage <1 µA at 100 V. |
| Telecom DC Power Feeds | Consumer Device USB Power Input |
|
Use Scenario: Safeguarding PoE-powered network switches and base stations against induced lightning surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side 48 V bus, coordinated with upstream MOVs and fuses. Use Value: Absorbs 600 W surge energy without degradation, meeting IEC 61000-4-5 10/700 µs test requirements for Class B equipment. |
Use Scenario: Providing secondary-stage surge protection on USB-C PD input rails (5–20 V) in portable monitors and docking stations. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS placed after input fuse and before buck controller, rated for 100 V standoff. Use Value: Clamps 15 kV ESD contact discharge (IEC 61000-4-2) to <162 V within nanoseconds, preserving USB PD controller functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG100AHE3/52 | AEC-Q101 qualified; same VWM, VBR, VC, and PPPM; E3 suffix denotes standard RoHS-compliant (non-halogen-free) finish | Approved for automotive use but lacks halogen-free certification required by some Tier 1 OEMs | Select when AEC-Q101 compliance is mandatory but halogen-free content is not specified in procurement specs. |
| SMBJ100A-M3/52 | Same VWM (100 V), VBR (111–123 V), and VC (162 V); differs in package (SMB vs. SMBG), higher RθJA (125 °C/W), lower IFSM (75 A) | Lower surge current rating and thermal resistance reduce suitability for high-reliability automotive load-dump scenarios | Acceptable for industrial or consumer applications where 100 A IFSM and 100 °C/W RθJA are not required. |
Compared with SMBG100A-M3/52, SMBG100AHE3/52 offers identical surge performance with non-halogen-free plating, while SMBJ100A-M3/52 trades thermal and surge robustness for broader commercial availability - making the original SMBG100A-M3/52 optimal for AEC-Q101 + halogen-free dual-compliance designs.
Availability
SMBG100A-M3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom DC power feeds requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG100A-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 reliability, efficiency, and application-specific validation.
The SMBG series is engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 qualification, halogen-free construction, and precise clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBG100A-M3/52 under a 10/1000 µs surge?
The SMBG100A-M3/52 exhibits a maximum clamping voltage (VC) of 162 V at its rated peak pulse current of 3.7 A using the standardized 10/1000 µs waveform. This value is measured per JEDEC and IEC test conditions and ensures downstream components experience controlled overvoltage stress during transient events. The SMBG100A-M3/52 maintains this clamping performance across its full operating temperature range.
Is SMBG100A-M3/52 certified for automotive applications?
Yes, SMBG100A-M3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per automotive reliability standards. Its halogen-free (M3) and RoHS-compliant construction meets Tier 1 OEM material requirements. The SMBG100A-M3/52 is routinely deployed in engine control modules, body control units, and ADAS power domains.
How does the SMBG100A-M3/52 differ from SMBJ100A-M3/52?
The SMBG100A-M3/52 uses the SMBG (DO-215AA) package with lower thermal resistance (RθJA = 100 °C/W) and higher surge current rating (IFSM = 100 A), whereas SMBJ100A-M3/52 uses the larger SMB (DO-214AA) package with RθJA = 125 °C/W and IFSM = 75 A. Both share identical VWM, VBR, and VC, but the SMBG100A-M3/52 is preferred for thermally constrained or high-surge automotive applications.
What is the polarity marking convention for SMBG100A-M3/52?
The SMBG100A-M3/52 is a unidirectional TVS diode with cathode indicated by a molded band on the package body. During PCB layout, the banded end must connect to the protected line (e.g., +12 V rail), and the opposite end (anode) must route directly to system ground. Reversing polarity prevents clamping and may cause permanent failure under overvoltage. The SMBG100A-M3/52 datasheet confirms this orientation in Figure 5 and mechanical drawings.
Does SMBG100A-M3/52 meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMBG100A-M3/52 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and withstands peak reflow temperatures up to 260 °C without preconditioning. This eliminates bake-out requirements and supports standard lead-free assembly processes. The SMBG100A-M3/52 achieves this via robust molding compound and optimized internal structure validated through JEDEC testing.
SMBG100A-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):
- 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-M3/52 FAQ
1.How can I place an order for SMBG100A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100A-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 SMBG100A-M3/52 reliable?
The price and inventory of SMBG100A-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 SMBG100A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG100A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100A-M3/52?
SMBG100A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100A-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 SMBG100A-M3/52?
For technical support, including SMBG100A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100A-M3/52 requirements.
6.How does Aetrix verify that SMBG100A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG100A-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 SMBG100A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG100A-M3/52?
All SMBG100A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100A-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 SMBG100A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG100A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100A-M3/52 Tags
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