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Vishay General Semiconductor - Diodes Division SMBG36A-E3/5B
- Part No.:
- SMBG36A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG36A-E3/5B.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,735
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Product details
Overview
SMBG36A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection in power and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1.0 mA, 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the SMBG36A-E3/5B datasheet, SMBG36A-E3/5B pinout, SMBG36A-E3/5B application, or SMBG36A-E3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AA package dimensions, clamping performance under surge conditions, and direct alternatives for ESD/surge co-design in 12 V–48 V systems.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast response to transients induced by inductive switching or load dump. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and low incremental surge resistance, enabling precise voltage limiting without forward conduction during normal operation.
Rated for -55 °C to +150 °C junction temperature, it meets MSL Level 1 per J-STD-020 and supports reflow soldering up to 260 °C peak. The device is AEC-Q101 qualified and UL recognized (QVGQ2, file E136766), confirming suitability for automotive-grade board-level protection where reliability under thermal cycling and repetitive surge stress is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; sets system working voltage ceiling. |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - Confirmed breakdown threshold range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage during 600 W transient; defines worst-case overvoltage seen by downstream ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; validates robustness against ISO 7637-2 Pulse 1/2/5a. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports load-dump survival in 12 V automotive rails. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood environments with minimal derating. |
| Leakage @ VWM | <1.0 μA - Ultra-low reverse leakage preserves signal integrity and battery drain budgets in always-on circuits. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals; meets UL 94 V-0, J-STD-002 solderability, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring long-term reliability under thermal shock and humidity. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime, critical for precision protection in sensor front-ends. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) without degradation or parametric shift. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines using 260 °C peak profile. |
| UL 497B recognition (QVGQ2) | Confirms compliance with telecom and industrial safety standards for primary-side surge protectors in powered equipment. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power inputs in ECUs, ADAS cameras, and infotainment modules against load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and LDOs to limit input voltage to safe levels. Use Value: Clamps to 58.1 V during 10.3 A transients, preventing damage to 40 V-rated input stages while maintaining AEC-Q101 compliance. | Use Scenario: Shielding analog and digital signal lines (e.g., CAN, LIN, RS-485) in factory automation sensors from ESD and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional shunt protector on signal lines referenced to local ground, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ns response time and 1.0 μA leakage preserve signal fidelity and minimize standby current in battery-powered wireless nodes. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding AC-DC adapter outputs and PoE-powered devices against lightning-induced surges on secondary-side DC rails. IC Role / Device Role / Timing Role: Secondary-side TVS placed between rectifier output and bulk capacitor to clamp overshoot during line transients. Use Value: 600 W rating and 58.1 V clamping enable compliance with ITU-T K.20/K.21 telecom surge immunity requirements. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Flyback diode replacement with superior clamping accuracy and lower VF than standard rectifiers during commutation events. Use Value: 40.0–44.2 V VBR aligns with 36 V motor supply rails, ensuring early clamping before MOSFET avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/5B | Same VWM (36 V), but lower PPPM = 600 W (same rating), higher VC = 59.0 V at 10.3 A; SMBJ package (DO-214AA) has larger footprint and higher RθJA. | Less suitable for space-constrained automotive PCBs due to 2.54 mm longer body and 0.3 mm taller profile. | Select SMBJ36A-E3/5B only if existing layout uses DO-214AA or requires higher IFSM (100 A same), but verify thermal margin with RθJA = 110 °C/W. |
| 1.5SMC36AHE3/A | Same VWM/VBR specs, PPPM = 1500 W, VC = 58.1 V at 25.8 A; SMC (DO-214AB) package offers higher power but larger size and no AEC-Q101 qualification. | Applicable in industrial power supplies where AEC-Q101 is not required and higher surge margin is needed. | Choose 1.5SMC36AHE3/A when surge energy exceeds 600 W limits or when UL 497B recognition is unnecessary and board area allows SMC footprint. |
Compared with SMBG36A-E3/5B, SMBJ36A-E3/5B shares identical electrical ratings but trades compact DO-215AA packaging for legacy DO-214AA compatibility, while 1.5SMC36AHE3/A delivers 2.5× peak power in a non-automotive-qualified SMC package - making SMBG36A-E3/5B the optimal balance of AEC-Q101 compliance, space efficiency, and validated 600 W surge handling.
Availability
SMBG36A-E3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor nodes, and telecom power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG36A-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, power handling, and automotive qualification.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial applications, combining AEC-Q101 validation with low-profile DO-215AA packaging and precise clamping performance.
FAQ
What is the maximum clamping voltage of SMBG36A-E3/5B under a 10/1000 μs surge?
The SMBG36A-E3/5B exhibits a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current of 10.3 A 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 standardized surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBG36A-E3/5B qualified for automotive applications?
Yes, SMBG36A-E3/5B is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 09-Jan-2024 (Document Number 88456). This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - validating its use in automotive powertrain, chassis, and body electronics where long-term reliability under harsh environmental conditions is mandatory.
What package type does SMBG36A-E3/5B use, and what are its key mechanical features?
SMBG36A-E3/5B uses the SMBG (DO-215AA) package: a low-profile gull-wing surface-mount case measuring 4.57 mm × 3.94 mm × 2.10 mm. Key features include matte tin-plated leads compliant with J-STD-002, UL 94 V-0 flammability rating, MSL Level 1 moisture sensitivity, and compatibility with 260 °C peak reflow profiles - all supporting high-yield automated assembly in automotive manufacturing.
How does the breakdown voltage tolerance of SMBG36A-E3/5B impact circuit design?
The SMBG36A-E3/5B has a specified VBR range of 40.0 V to 44.2 V at 1.0 mA test current. This ±5.5% tolerance informs minimum headroom design: circuits must ensure normal operating voltage stays ≥10% below the minimum VBR (i.e., ≤36 V) to avoid premature conduction, while also verifying that maximum transient clamping (58.1 V) remains within safe limits for downstream components.
Can SMBG36A-E3/5B be used in bidirectional configurations?
No, SMBG36A-E3/5B is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants carry the "CA" suffix (e.g., SMBG36CA). Using SMBG36A-E3/5B in bidirectional signal paths would result in forward conduction during negative transients - potentially damaging the device or failing to suppress. For AC or differential lines, select an explicitly bidirectional part.
SMBG36A-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMBG36A-E3/5B FAQ
1.How can I place an order for SMBG36A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG36A-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 SMBG36A-E3/5B reliable?
The price and inventory of SMBG36A-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 SMBG36A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG36A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG36A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG36A-E3/5B?
SMBG36A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG36A-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 SMBG36A-E3/5B?
For technical support, including SMBG36A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG36A-E3/5B requirements.
6.How does Aetrix verify that SMBG36A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG36A-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 SMBG36A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG36A-E3/5B?
All SMBG36A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG36A-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 SMBG36A-E3/5B part is unused and in its original packaging.
Return procedure for SMBG36A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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