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Vishay General Semiconductor - Diodes Division SMBG100A-E3/52
- Part No.:
- SMBG100A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100A-E3/52.pdf
- Description:
- TVS DIODE 100VWM 162VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,735
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Product details
Overview
SMBG100A-E3/52 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 standoff voltage (VWM), 111–123 V breakdown range (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 - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the SMBG100A-E3/52 datasheet, SMBG100A-E3/52 pinout, SMBG100A-E3/52 application, or SMBG100A-E3/52 equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, IPPM derating above 25 °C, junction temperature limits under repetitive surge conditions, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS operates as a silicon avalanche diode, triggered when reverse voltage exceeds VBR, clamping transients by shunting surge current to ground. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables tight clamping performance under fast-rising ESD or lightning-induced surges.
The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports -55 °C to +150 °C operating junction temperature, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for high-reliability surface-mount assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected circuit's normal operating rail. |
| VBR (min/max) | 111 V / 123 V at 1 mA - guaranteed avalanche initiation window; determines minimum overvoltage threshold for clamping activation. |
| VC @ IPPM | 162 V at 3.7 A - maximum voltage seen across device during 10/1000 μs surge; must remain below protected IC's absolute max rating. |
| PPPM | 600 W - peak transient power handling capability; defines energy absorption capacity for standardized surge waveforms. |
| IFSM | 100 A - single half-sine surge current rating (8.3 ms); validates robustness against inductive switch-off events in power electronics. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test requirements including HTOL, TC, UHAST, and ESD. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount gull-wing leaded case with cathode band marking; dimensions 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability and JESD22-B102 whisker testing (Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current return path during clamping | Connected to system ground or low-impedance return node; carries full surge current during transient event. |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 12 V battery rail); polarity band identifies this terminal on PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without thermal runaway in properly heatsinked layouts. |
| AEC-Q101 qualified | Validates long-term reliability under automotive thermal cycling, humidity, and vibration stresses - required for engine control, body electronics, and ADAS modules. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or gate oxide damage in downstream MOSFETs and microcontrollers. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-bake requirement prior to SMT assembly, streamlining manufacturing for high-volume automotive and industrial PCB production. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage drift over time and temperature - critical for precision sensor front-end protection. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery rail in engine control unit exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and DC-DC converter input to clamp surges before they reach regulator ICs. Use Value: Limits transient voltage to ≤162 V, preventing destruction of 36 V-rated input capacitors and enabling compliance with ISO 16750-2 electrical stress requirements. | Use Scenario: Analog output line (4–20 mA) from pressure sensor in factory automation PLC module subjected to cable ESD and inductive coupling. IC Role / Device Role / Timing Role: TVS connected between signal line and ground to divert sub-100 ns ESD events before reaching op-amp input stage. Use Value: Clamps 8 kV contact discharge to <162 V within <1 ns, preserving 16-bit ADC accuracy and avoiding reset faults during field maintenance. |
| Telecom DC Power Feeds | OBD-II Diagnostic Interface Protection |
Use Scenario: -48 V telecom rectifier output feeding base station backplane where lightning-induced surges propagate through distribution traces. IC Role / Device Role / Timing Role: SMBG100A-E3/52 deployed at board edge to protect hot-swap controller and PMBus communication lines. Use Value: Absorbs 600 W surge energy without degradation, maintaining -48 V rail integrity and preventing false fault reporting during grid disturbances. | Use Scenario: OBD-II connector pins (pins 6/CAN-H, 14/CAN-L) in vehicle telematics gateway exposed to user-insertion ESD and chassis ground bounce. IC Role / Device Role / Timing Role: Bidirectional protection not applicable here; unidirectional SMBG100A-E3/52 used on 12 V accessory power pin (pin 16) only. Use Value: Withstands 100 A surge from jump-start misconnection, shielding MCU power domain while meeting SAE J1113-11 ESD immunity requirements. |
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 VWM (100 V), but lower PPPM = 600 W (same), higher VC = 170 V at 3.5 A; SMBJ package has larger thermal pad area. | SMBJ offers better thermal dissipation in high-duty-cycle surge environments; less suitable for space-constrained automotive modules. | Select SMBJ100A-E3/52 only if board layout allows larger footprint and thermal relief pads are implemented. |
| 1.5SMC100A | Same VWM/VBR specs, but DO-214AB (SMC) package; 1.5 kW PPPM, VC = 165 V at 9.1 A; no AEC-Q101 qualification. | Higher power rating suits infrequent high-energy surges; lacks automotive qualification and tighter VC consistency. | Choose 1.5SMC100A only for industrial AC/DC supplies where AEC-Q101 is not mandated and PCB space permits larger SMC outline. |
Compared with SMBJ100A-E3/52 and 1.5SMC100A, SMBG100A-E3/52 delivers optimal balance of AEC-Q101 compliance, compact SMBG footprint, and precise 162 V clamping - making it preferred for space-limited, thermally constrained automotive ECUs requiring validated reliability.
Availability
SMBG100A-E3/52 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, and telecom DC feed protection requiring stable component supply across multi-year production cycles.
Supply support for SMBG100A-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG TransZORB® series is engineered for high-speed transient suppression in automotive, industrial, and telecom systems where compact size, AEC-Q101 compliance, and repeatable clamping performance are mandatory design requirements.
FAQ
What is the maximum clamping voltage of SMBG100A-E3/52 under standard 10/1000 μs surge conditions?
The SMBG100A-E3/52 exhibits a maximum clamping voltage (VC) of 162 V when subjected to its rated peak pulse current of 3.7 A using the 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 transient events - critical for ensuring compatibility with downstream components' absolute maximum ratings.
Is SMBG100A-E3/52 qualified for automotive applications?
Yes, SMBG100A-E3/52 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 09-Jan-2024 (document 88456). This qualification covers stress tests including high-temperature operating life, temperature cycling, unbiased highly accelerated stress testing, and human-body-model ESD - validating its suitability for under-hood and cabin-mounted automotive electronic control units.
What does the "E3/52" suffix indicate in SMBG100A-E3/52?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads, while "/52" specifies packaging in 7-inch diameter plastic tape and reel containing 750 units. This configuration ensures compatibility with automated SMT placement equipment and meets J-STD-002 solderability standards for high-yield assembly.
How does the SMBG100A-E3/52 differ from bidirectional variants like SMBG100CA?
SMBG100A-E3/52 is unidirectional, featuring a cathode band for polarity-sensitive placement and conducting only in reverse bias above VBR; SMBG100CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The unidirectional version provides lower leakage and tighter VBR tolerance - ideal for DC rail protection where polarity is fixed and leakage current must be minimized.
What is the thermal resistance junction-to-ambient for SMBG100A-E3/52?
The typical thermal resistance junction-to-ambient (RθJA) for SMBG100A-E3/52 is 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay thermal characteristics table. This value assumes standard JEDEC test conditions and informs thermal design margins for repetitive surge duty cycles in enclosed environments.
SMBG100A-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:
- 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-E3/52 FAQ
1.How can I place an order for SMBG100A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100A-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 SMBG100A-E3/52 reliable?
The price and inventory of SMBG100A-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 SMBG100A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG100A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100A-E3/52?
SMBG100A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100A-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 SMBG100A-E3/52?
For technical support, including SMBG100A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100A-E3/52 requirements.
6.How does Aetrix verify that SMBG100A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG100A-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 SMBG100A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG100A-E3/52?
All SMBG100A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100A-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 SMBG100A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG100A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100A-E3/52 Tags
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