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Vishay General Semiconductor - Diodes Division SMBG100-E3/52
- Part No.:
- SMBG100-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100-E3/52.pdf
- Description:
- TVS DIODE 100VWM 179VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,302
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Product details
Overview
SMBG100-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for robust overvoltage protection of power rails and signal lines. It features a 100 V standoff voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V clamping voltage (VC) at 3.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used in automotive power supply input stages and industrial DC bus protection.
For engineers reviewing the SMBG100-E3/52 datasheet, SMBG100-E3/52 pinout, SMBG100-E3/52 application, or SMBG100-E3/52 equivalent, key selection considerations include its AEC-Q101 qualification, 150 °C maximum junction temperature, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 100 V), then rapidly switches to low-impedance conduction when transients exceed VBR, clamping the protected line to ≤162 V. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Thermal performance is defined by RθJA = 100 °C/W (on 5.0 mm × 5.0 mm pads) and RθJL = 20 °C/W, enabling effective heat dissipation during 8.3 ms half-sine surges up to 100 A (IFSM). The device meets UL 497B recognition (QVGQ2) and complies with ANSI/IEEE C62.35 surge standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range |
| VBR (min/max) | 111 V / 123 V at 1 mA - precise breakdown threshold ensuring predictable turn-on during transients |
| VC @ IPPM | 162 V at 3.7 A - clamping voltage limits downstream component stress during 600 W 10/1000 µs surge |
| PPPM | 600 W - peak pulse power handling capability per single 10/1000 µs transient event |
| IFSM | 100 A - surge current rating for 8.3 ms half-sine waveform, critical for inductive load switching protection |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive and industrial environments |
| Package | DO-215AA (SMBG) - surface-mount package with gull-wing leads, footprint compatible with standard SMB layouts |
Pinout & Package
DO-215AA (SMBG) package: molded plastic case with gull-wing leads, 0.235–0.255 inch (5.97–6.48 mm) body length, cathode band marking on one end. Terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102, qualified to JESD 201 Class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., +12 V rail); conducts surge current to ground when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from load dump or inductive switching without degradation |
| Glass passivated junction | Ensures stable VBR tolerance and low parameter drift over temperature and lifetime |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free reflow profiles without preconditioning |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial signal line protectors |
Applications
| Automotive Power Input Protection | Industrial DC Bus Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle power inputs against ISO 7637-2 load dump pulses and alternator overshoot. IC Role / Device Role / Timing Role: Shunt clamping element placed between battery rail and ECU input filter stage. Use Value: Limits transient voltage to ≤162 V, preventing damage to downstream PMICs and microcontrollers rated for 36 V absolute max. |
Use Scenario: Safeguarding PLC I/O module power supplies from motor drive coupling noise and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC bus feeding isolated DC/DC converters. Use Value: Absorbs 600 W surges within 10/1000 µs, maintaining bus stability without triggering upstream OVP shutdown. |
| Telecom Line Interface Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Shielding Ethernet PHY power pins and auxiliary bias rails from lightning-induced surges on PoE-powered devices. IC Role / Device Role / Timing Role: Secondary-level TVS on 3.3 V/5 V bias rails downstream of primary isolation. Use Value: Clamps fast-rising transients (<1 ns response) while adding only 2.0 pF junction capacitance at zero bias. |
Use Scenario: Reinforcing surge immunity of AC-DC adapter secondary-side outputs (e.g., 12 V USB-C PD output). IC Role / Device Role / Timing Role: Final-stage clamp before connector to meet IEC 61000-4-5 Level 3 (2 kV line-earth) Use Value: Provides certified 600 W surge handling with RoHS-compliant matte tin leads suitable for consumer-grade reflow assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A-E3/52 | Same DO-214AA (SMB) package but 10% higher VC (170 V), 5% lower IPPM (3.5 A), identical PPPM and VWM | Marginally less aggressive clamping; suited where downstream ICs tolerate higher transient voltage | Select SMBJ100A-E3/52 if board layout uses legacy SMB footprints and thermal margin allows higher VC |
| SMBG100HE3/52 | Identical electrical specs and package, but AEC-Q101 qualified (HE3 suffix) vs. commercial-grade E3 | Required for automotive OEM designs requiring full qualification documentation and traceability | Choose SMBG100HE3/52 when automotive PPAP submission or long-term reliability validation is mandated |
Compared with SMBJ100A-E3/52 and SMBG100HE3/52, the SMBG100-E3/52 offers optimal cost-performance balance for industrial and telecom applications where AEC-Q101 is not required and tighter clamping (162 V vs. 170 V) improves system-level surge margin.
Availability
SMBG100-E3/52 is available at Aetrix Electronics and suitable for automotive power input protection, industrial DC bus clamping, and telecom line interface protection requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for SMBG100-E3/52 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 and application-specific optimization.
The SMBG series is engineered for high-power transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems needing AEC-Q101-capable or commercial-grade TVS solutions in standardized SMBG packaging.
FAQ
What is the clamping voltage of SMBG100-E3/52 and how is it measured?
The SMBG100-E3/52 has a maximum clamping voltage (VC) of 162 V, measured at a peak pulse current (IPPM) of 3.7 A using a 10/1000 µs double-exponential waveform. This value reflects the actual voltage seen by protected circuitry during a standardized surge event and is guaranteed across the full operating temperature range of -55 °C to +150 °C. The SMBG100-E3/52 achieves this with low incremental surge resistance, ensuring consistent clamping performance.
Is SMBG100-E3/52 suitable for automotive applications?
The SMBG100-E3/52 is RoHS-compliant and rated for operation from -55 °C to +150 °C, but it is the commercial-grade variant (E3 suffix). For automotive applications requiring formal qualification, Vishay offers SMBG100HE3/52 - an AEC-Q101-qualified version with identical electrical specs. The SMBG100-E3/52 itself is commonly used in non-safety-critical automotive subsystems such as infotainment power rails where full AEC-Q101 documentation is not mandated.
What is the difference between SMBG100-E3/52 and SMBJ100A-E3/52?
SMBG100-E3/52 uses the DO-215AA (SMBG) package with gull-wing leads, while SMBJ100A-E3/52 uses the DO-214AA (SMB) package with J-bend leads - different footprints and thermal characteristics. Electrically, SMBG100-E3/52 has a lower clamping voltage (162 V vs. 170 V) and slightly higher IPPM (3.7 A vs. 3.5 A) at the same 600 W rating. The SMBG100-E3/52 also features MSL Level 1 rating and UL 497B recognition, whereas SMBJ100A-E3/52 is optimized for general-purpose industrial use.
Does SMBG100-E3/52 have polarity marking and how is it oriented on PCB?
Yes, SMBG100-E3/52 is a unidirectional TVS diode with a visible cathode band marking on the package body. During PCB layout, the banded end must be connected to the line being protected (e.g., +12 V rail), and the opposite (anode) end tied to ground or the return path. Incorrect orientation renders the device ineffective for reverse-polarity transients and may cause catastrophic failure under forward surge conditions. The SMBG100-E3/52 datasheet specifies this polarity in the mechanical outline diagram.
What is the surge current rating for SMBG100-E3/52 and under what conditions?
The SMBG100-E3/52 has a peak forward surge current (IFSM) rating of 100 A for an 8.3 ms single half-sine waveform, applicable only in unidirectional mode. This rating assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal and ambient temperature of 25 °C. Derating applies above 25 °C per the published thermal curve - at 100 °C ambient, IFSM drops to approximately 55 A. This capability makes the SMBG100-E3/52 suitable for protecting against inductive switching events in motor drives and power supplies.
SMBG100-E3/52 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- 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 (SMBG)
SMBG100-E3/52 FAQ
1.How can I place an order for SMBG100-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100-E3/52 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 SMBG100-E3/52 reliable?
The price and inventory of SMBG100-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG100-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG100-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100-E3/52?
SMBG100-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100-E3/52 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 SMBG100-E3/52?
For technical support, including SMBG100-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100-E3/52 requirements.
6.How does Aetrix verify that SMBG100-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG100-E3/52 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 SMBG100-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG100-E3/52?
All SMBG100-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100-E3/52, 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 SMBG100-E3/52 part is unused and in its original packaging.
Return procedure for SMBG100-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100-E3/52 Tags
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