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Vishay General Semiconductor - Diodes Division SMBG100A-E3/5B
- Part No.:
- SMBG100A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100A-E3/5B.pdf
- Description:
- TVS DIODE 100VWM 162VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,184
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Product details
Overview
SMBG100A-E3/5B 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.
For engineers reviewing the SMBG100A-E3/5B datasheet, SMBG100A-E3/5B pinout, SMBG100A-E3/5B application, or SMBG100A-E3/5B equivalent, this device is selected for high-reliability surge suppression in automotive power systems, industrial sensor interfaces, and telecom DC input stages where AEC-Q101 qualification, low clamping ratio, and stable thermal performance up to 150 °C junction temperature are required.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping protector: under normal conditions it presents high impedance (>1 μA leakage at 100 V), but conducts heavily when transient voltage exceeds VBR, limiting downstream voltage to ≤162 V. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns).
Thermal design relies on its RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, enabling effective heat dissipation during repetitive 0.01% duty cycle surges. The cathode-band-marked SMBG package supports automated placement and meets MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on above nominal system voltage. |
| VC @ IPPM | 162 V at 3.7 A - Clamped voltage during full 600 W surge; determines maximum stress on protected ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; validates compliance with IEC 61000-4-5 Level 4. |
| IFSM | 100 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports high-energy inductive kickback events. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments. |
| Leakage @ VWM | 1.0 μA - Ultra-low reverse leakage ensures minimal standby power loss in battery-powered systems. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing leads, matte tin-plated terminals solderable per J-STD-002/JESD 22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; completes clamping loop during transient events. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 12 V rail); carries surge current into anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 4 kV surge (line-earth) without degradation when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage overshoot across protected components-critical for 100 V-rated MOSFETs and gate drivers. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal cycling and humidity exposure. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role: Primary shunt clamp on main power input, placed upstream of DC/DC converters and microcontrollers. Use Value: Limits voltage to ≤162 V during 100 V/350 ms load dump events, preventing latch-up or gate oxide damage in downstream PMICs. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role: Point-of-entry TVS on 4–20 mA or 0–10 V signal lines exposed to relay switching noise and EFT bursts. Use Value: Sub-1 ns response clamps induced spikes before they reach precision op-amps or ADC inputs, preserving measurement integrity. |
| Telecom DC Input Protection | Motor Drive Control Signal Protection |
Use Scenario: Securing -48 V DC power input of base station remote radio units against lightning-induced surges on outdoor feeder lines. IC Role / Device Role: First-stage transient suppressor before bulk capacitance and hot-swap controllers. Use Value: Handles 600 W pulses without thermal runaway, maintaining <1 μA leakage to avoid false brownout detection in supervision circuits. |
Use Scenario: Shielding isolated gate driver enable signals (e.g., PWM inputs to SiC half-bridges) from cross-talk and inductive coupling in motor inverters. IC Role / Device Role: Low-capacitance (<50 pF) unidirectional clamp on logic-level control traces routed near high-dV/dt power paths. Use Value: Prevents false triggering or latch-up in gate drivers while adding <0.5 ns propagation delay-negligible in >10 kHz PWM systems. |
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-E3/5B | Same VWM (100 V) and PPPM (600 W), but SMB (DO-214AA) package; 10% higher VC (179 V) and 10% lower IPPM. | Larger footprint (4.58 × 3.94 mm vs. 4.57 × 3.94 mm) and higher thermal resistance (RθJA = 110 °C/W) limit use in dense automotive layouts. | Select SMBJ100A-E3/5B only if legacy PCB uses SMB pads and thermal derating allows 179 V clamping. |
| SMAJ100A-E3/5B | Lower PPPM (400 W), same VWM, smaller SMA (DO-214AC) package; VC = 165 V at 2.4 A. | Insufficient for IEC 61000-4-5 Level 4; suitable only for low-energy ESD/EFT zones (e.g., USB VBUS, button inputs). | Choose SMAJ100A-E3/5B only for cost-sensitive consumer applications with ≤400 W surge requirements and space-constrained layouts. |
Compared with SMBJ100A-E3/5B and SMAJ100A-E3/5B, SMBG100A-E3/5B delivers superior clamping performance (162 V), tighter thermal management (RθJA = 100 °C/W), and AEC-Q101 validation-making it the preferred choice for automotive and industrial systems demanding repeatable 600 W surge immunity.
Availability
SMBG100A-E3/5B is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC input conditioning requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for SMBG100A-E3/5B 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-power transient suppression in space-constrained, thermally demanding environments-particularly automotive engine control, industrial automation, and infrastructure power systems.
FAQ
What is the maximum clamping voltage of SMBG100A-E3/5B under full 600 W surge conditions?
The SMBG100A-E3/5B exhibits a maximum clamping voltage (VC) of 162 V when subjected to its rated 3.7 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88456 and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The SMBG100A-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG100A-E3/5B suitable for bidirectional transient protection?
No, SMBG100A-E3/5B is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection at 100 V, the correct variant is SMBG100CA-E3/5B (with "CA" suffix). Using SMBG100A-E3/5B in AC-coupled or symmetrical signal paths will result in forward conduction during negative transients, potentially damaging the device or failing to suppress.
Does SMBG100A-E3/5B meet automotive qualification standards?
Yes, SMBG100A-E3/5B is AEC-Q101 qualified, as confirmed in the "Mechanical Data" section of Vishay document 88456. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge-validating its suitability for under-hood and chassis-mounted automotive applications.
What is the recommended PCB pad layout for optimal thermal performance of SMBG100A-E3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area per terminal to achieve the rated RθJA = 100 °C/W. The SMBG100A-E3/5B datasheet (Fig. 2) shows derating curves based on this layout; reducing pad size increases thermal resistance and reduces sustainable surge repetition rate. Thermal vias under pads further improve heat transfer in multilayer boards.
How does the leakage current of SMBG100A-E3/5B compare to similar 100 V TVS diodes?
At its 100 V stand-off voltage (VWM), SMBG100A-E3/5B guarantees maximum reverse leakage current of 1.0 μA at 25 °C-lower than industry-standard SMBJ/SMAJ equivalents (typically 5–10 μA). This ultra-low leakage minimizes quiescent power loss in always-on automotive modules and extends battery life in remote industrial sensors.
SMBG100A-E3/5B 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG100A-E3/5B FAQ
1.How can I place an order for SMBG100A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100A-E3/5B 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-E3/5B reliable?
The price and inventory of SMBG100A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG100A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG100A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100A-E3/5B?
SMBG100A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100A-E3/5B 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-E3/5B?
For technical support, including SMBG100A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100A-E3/5B requirements.
6.How does Aetrix verify that SMBG100A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG100A-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG100A-E3/5B?
All SMBG100A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100A-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMBG100A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100A-E3/5B Tags
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