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Vishay General Semiconductor - Diodes Division SMBG100HE3/5B
- Part No.:
- SMBG100HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100HE3/5B.pdf
- Description:
- TVS DIODE 100VWM 179VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,447
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Product details
Overview
SMBG100HE3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on power and signal lines. It features 100 V stand-off voltage (VWM), 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 - used in automotive power supply rail protection.
For engineers reviewing the SMBG100HE3/5B datasheet, SMBG100HE3/5B pinout, SMBG100HE3/5B application, or SMBG100HE3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surge, AEC-Q101 qualification for automotive use, RoHS compliance with HE3 whisker test class 2, and thermal resistance (RθJA = 100 °C/W) for PCB layout thermal management.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 111–123 V (min/max) under 1 mA test current. Its low incremental surge resistance ensures stable clamping during fast transients, and response time is sub-nanosecond - critical for protecting MOSFET gates and CAN bus interfaces against ESD and load dump.
The device is rated for junction temperature up to +150 °C and meets MSL Level 1 per J-STD-020 (peak reflow 260 °C). Its glass-passivated junction and matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, supporting high-reliability automated assembly in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 111 V / 123 V at IT = 1 mA - defines reliable conduction onset under surge conditions |
| VC @ IPPM | 162 V at 3.7 A - clamping voltage limiting stress on downstream ICs during 10/1000 µs transient |
| PPPM | 600 W - peak pulse power handling capability with 0.01 % duty cycle, enabling repeated surge suppression |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on 5.0 mm × 5.0 mm copper pads, guiding heatsinking requirements |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Whisker Test | JESD 201 Class 2 - mitigates tin whisker growth risk in long-life automotive modules |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount, gull-wing lead form, no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals - either end serves as anode or cathode depending on transient polarity; no band marking |
| Lead 1 / Lead 2 | PCB interconnect interface | Matte tin-plated, solderable per J-STD-002; supports reflow up to 260 °C (MSL Level 1) |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 Load Dump and ISO 16750-2 jump-start surges in 12 V systems |
| AEC-Q101 qualification | Validated for automotive under-hood and body-control module applications requiring extended lifetime and thermal cycling endurance |
| Glass-passivated junction | Improves long-term stability and leakage control over temperature and humidity vs. epoxy-passivated alternatives |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage stress on protected devices compared to higher-ratio TVS diodes |
| DO-215AA footprint | Standardized 2-pin SMT package compatible with automated pick-and-place and AOI inspection workflows |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump transients (up to 60 V, 400 ms) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤162 V during surge, preventing latch-up or gate oxide damage in downstream Si MOSFETs and PMICs. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors exposed to inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Bi-directional shunt clamp on differential sensor lines (e.g., 4–20 mA loop or RS-485 stubs). Use Value: Clamps ±1 kV EFT bursts per IEC 61000-4-4 without degrading signal integrity due to low capacitance (<100 pF at 0 V). |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Guarding PoE-powered Ethernet PHY interfaces against lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Secondary-level TVS on MDI side, coordinated with primary gas discharge tube (GDT) stage. Use Value: Responds within <1 ns to clamp residual transients after GDT crowbar action, preserving PHY IC ESD tolerance margin. | Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs against mains-borne surges (IEC 61000-4-5, 1.2/50 µs). IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to limit overvoltage during line spikes. Use Value: Absorbs 600 W peak energy without thermal runaway, maintaining system uptime where UL 62368-1 fault containment applies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Same VWM (100 V), lower PPPM (600 W same), but VC = 165 V (vs. 162 V); not AEC-Q101 qualified | Commercial-grade only; unsuitable for automotive OEM designs requiring qualification evidence | Select SMBG100HE3/5B when AEC-Q101 traceability and JESD 201 Class 2 whisker resistance are mandatory |
| SMCJ100A | Higher PPPM (1500 W), larger DO-214AB (SMC) package, uni-directional only, VC = 165 V | Requires polarity-aware layout; occupies ~2.5× PCB area; suited for industrial power supplies with space margin | Choose SMBG100HE3/5B for space-constrained bi-directional protection where footprint and automotive qualification are prioritized |
Compared with SMBJ100CA and SMCJ100A, SMBG100HE3/5B uniquely combines AEC-Q101 qualification, bi-directional symmetry, and compact DO-215AA packaging - making it optimal for automotive body electronics and space-limited industrial controllers needing certified reliability.
Availability
SMBG100HE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning circuits, and telecom infrastructure power interfaces requiring stable component supply across multi-year production cycles.
Supply support for SMBG100HE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMBG series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and repeatable clamping performance are non-negotiable.
FAQ
What is the clamping voltage of SMBG100HE3/5B at its rated peak pulse current?
The SMBG100HE3/5B has a maximum clamping voltage (VC) of 162 V at its rated peak pulse current (IPPM) of 3.7 A, measured using the standard 10/1000 µs double-exponential waveform. This value is guaranteed per the Vishay datasheet revision 12-Nov-12, Document Number 88456, and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG100HE3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG100HE3/5B suitable for automotive applications?
Yes, SMBG100HE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and body electronics. Its HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - critical for long-life modules exposed to thermal cycling and vibration. The SMBG100HE3/5B is deployed in engine control units, lighting drivers, and ADAS sensor interfaces where certified reliability is required.
What does the "HE3" suffix mean in SMBG100HE3/5B?
The "HE3" suffix in SMBG100HE3/5B indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike the base "E3" variant (commercial grade), the "HE3" version undergoes additional stress testing for automotive reliability, including high-temperature reverse bias, temperature cycling, and mechanical shock. This makes SMBG100HE3/5B appropriate for Tier 1 automotive supply chains requiring full qualification documentation.
How does SMBG100HE3/5B differ from uni-directional TVS diodes like SMBG100A?
SMBG100HE3/5B is bi-directional, meaning it clamps transients of either polarity symmetrically - ideal for AC-coupled or floating signal lines. In contrast, SMBG100A is uni-directional and requires correct polarity orientation (cathode band marked), limiting use to DC rails with defined ground reference. The SMBG100HE3/5B eliminates polarity concerns in differential or bidirectional interfaces such as CAN, RS-485, or audio lines, simplifying layout and reducing assembly errors.
What is the thermal resistance of SMBG100HE3/5B, and how does it affect PCB layout?
The SMBG100HE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding internal thermal vias lowers RθJA, improving surge survivability. For sustained surge duty or high ambient temperatures, PCB layout must allocate adequate copper to prevent junction overheating beyond the 150 °C maximum rating - directly impacting SMBG100HE3/5B's reliability in repetitive transient environments.
SMBG100HE3/5B 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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG100HE3/5B FAQ
1.How can I place an order for SMBG100HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100HE3/5B 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 SMBG100HE3/5B reliable?
The price and inventory of SMBG100HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG100HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG100HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100HE3/5B?
SMBG100HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100HE3/5B 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 SMBG100HE3/5B?
For technical support, including SMBG100HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100HE3/5B requirements.
6.How does Aetrix verify that SMBG100HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG100HE3/5B 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 SMBG100HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG100HE3/5B?
All SMBG100HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100HE3/5B, 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 SMBG100HE3/5B part is unused and in its original packaging.
Return procedure for SMBG100HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100HE3/5B Tags
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Diodes Incorporated
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Diodes Incorporated
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