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Vishay General Semiconductor - Diodes Division SMBG36A-E3/52
- Part No.:
- SMBG36A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG36A-E3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
SMBG36A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on power and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 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 - used to protect automotive ECUs, industrial I/O modules, and DC power rails against ESD and load dump.
For engineers reviewing the SMBG36A-E3/52 datasheet, SMBG36A-E3/52 pinout, SMBG36A-E3/52 application, or SMBG36A-E3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the SMBG package provides robust thermal dissipation (RθJA = 100 °C/W) under transient stress.
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 range, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for high-reliability automotive and industrial PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Ensures predictable turn-on across production lot; guarantees clamping initiates no earlier than 40 V. |
| VC @ IPPM | 58.1 V at 10.3 A - Limits downstream voltage during 10/1000 μs surge; protects 3.3 V/5 V/12 V logic and MOSFET gates. |
| PPPM | 600 W - Peak pulse power handling capability; sustains standardized lightning/surge waveforms without failure. |
| IFSM | 100 A - Withstands 8.3 ms half-sine surge; critical for automotive load-dump immunity per ISO 7637-2. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and sealed industrial enclosures. |
| Leakage ID | 1.0 μA at 36 V - Minimizes standby power loss in battery-powered systems and high-impedance sensor interfaces. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount gull-wing lead frame with matte tin-plated terminals; 0.235" × 0.255" (5.97 mm × 6.48 mm) footprint; cathode indicated by band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line ground or low-side return path | Completes clamping loop during transient; must be routed with low-inductance path to reference plane. |
| Cathode | Current exit point in forward bias; marked with band; connected to protected line (e.g., 12 V rail or CAN_H) | Defines unidirectional polarity; reverse-biased during normal operation; avalanches when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors - meets stress test requirements for temperature cycling, HTRB, and ESD. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage over lifetime; resists humidity-induced parameter drift in harsh environments. |
| 600 W peak pulse power (10/1000 μs) | Handles ISO 16750-2 pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation when mounted per recommended pad layout. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow soldering without popcorn effect or delamination - eliminates post-assembly rework risk. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD contact discharge), improving protection margin for sensitive ICs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units (ECUs) against load dump surges per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamps transient overvoltage to <58.1 V, preventing damage to downstream DC/DC converters and microcontrollers. Use Value: Enables compliance with automotive OEM surge immunity requirements without adding series impedance or affecting steady-state regulation. | Use Scenario: Safeguarding analog input pins of industrial PLC analog I/O modules from field-wiring induced transients. IC Role / Device Role / Timing Role: Placed at connector entry point to shunt EFT/burst energy before it reaches precision op-amps and ADC front-ends. Use Value: Maintains signal integrity with <1.0 μA leakage at 36 V, avoiding offset errors in 24-bit measurement systems. |
| DC Motor Drive Gate Protection | Telecom Power Supply Clamp |
Use Scenario: Shielding high-side N-channel MOSFET gates in brushed DC motor drivers from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Connected between gate and source to clamp VGS spikes exceeding ±20 V, preserving MOSFET reliability. Use Value: Fast <1 ns response prevents gate oxide rupture; 100 A IFSM rating handles repetitive commutation surges. | Use Scenario: Clamping secondary-side 48 V outputs in telecom rectifier modules exposed to lightning-induced surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: Parallel-connected TVS on output bus to limit voltage excursion during 2 Ω/12 Ω coupling network tests. Use Value: 600 W PPPM and 58.1 V VC ensure sustained clamping without thermal runaway under repeated 10/1000 μs pulses. |
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-E3/52 | Same VWM/VBR/VC specs but lower PPPM (600 W vs. SMBJ's 600 W - identical rating); SMBJ uses DO-214AA (SMB) package with slightly larger footprint (0.265" × 0.205") and higher RθJA (110 °C/W). | Less suitable for space-constrained automotive modules where SMBG's smaller 0.235" × 0.255" footprint and lower thermal resistance are critical. | Select SMBG36A-E3/52 when board area is limited or thermal performance under sustained surge duty requires lower RθJA. |
| SMCJ36A-E3/52 | Higher PPPM (1500 W), same VWM/VBR, but larger SMC (DO-214AB) package (0.315" × 0.265"); RθJA = 50 °C/W - better thermal handling but occupies >2× PCB area. | Preferred for primary-level AC/DC input protection or high-energy surge zones where 1500 W rating is mandated, not for compact secondary-side clamping. | Choose SMBG36A-E3/52 for optimized balance of surge rating, size, and thermal performance in dense automotive or industrial PCB layouts. |
Compared with SMBJ36A-E3/52 and SMCJ36A-E3/52, SMBG36A-E3/52 delivers identical 36 V clamping performance in the smallest qualified footprint with best-in-class thermal resistance (100 °C/W), making it optimal for space- and thermally constrained AEC-Q101-compliant designs requiring precise 600 W surge handling.
Availability
SMBG36A-E3/52 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, and telecom power rail clamping requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG36A-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, automotive qualification, and high-volume manufacturability.
The SMBG Transient Voltage Suppressor family targets high-density, AEC-Q101-compliant circuit protection in automotive, industrial, and telecom applications where low-profile packaging and repeatable clamping performance are essential.
FAQ
What is the breakdown voltage range of SMBG36A-E3/52?
The SMBG36A-E3/52 has a guaranteed breakdown voltage (VBR) range of 40.0 V to 44.2 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining for 36 V nominal systems. The SMBG36A-E3/52 achieves this via glass-passivated junction technology and 100% production testing.
Is SMBG36A-E3/52 qualified for automotive use?
Yes, SMBG36A-E3/52 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JS-001. It is rated for operation from -55 °C to +150 °C and supports lead-free reflow up to 260 °C (MSL Level 1). These qualifications make SMBG36A-E3/52 suitable for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of SMBG36A-E3/52 at its rated peak pulse current?
The SMBG36A-E3/52 exhibits a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 10.3 A, tested with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuits during surge events and is critical for ensuring downstream components like 60 V-rated MOSFETs or 5 V/12 V regulators remain within safe operating area. The SMBG36A-E3/52 achieves this with low incremental surge resistance.
How does the SMBG package differ from SMB or SMC packages for TVS diodes?
The SMBG (DO-215AA) package used by SMBG36A-E3/52 measures 0.235" × 0.255" (5.97 mm × 6.48 mm), smaller than SMC (DO-214AB, 0.315" × 0.265") and slightly more compact than SMB (DO-214AA, 0.265" × 0.205"). It offers lower thermal resistance (RθJA = 100 °C/W vs. 110 °C/W for SMB) and is optimized for high-density automotive PCBs. The SMBG36A-E3/52 leverages this for improved power density and thermal performance in constrained layouts.
Can SMBG36A-E3/52 be used in bidirectional configurations?
No, SMBG36A-E3/52 is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional variants in the same family carry the "CA" suffix (e.g., SMBG36CA). Using SMBG36A-E3/52 in bidirectional applications would result in forward conduction during negative transients, causing failure. For symmetric surge protection, select SMBG36CA-E3/52 instead - the SMBG36A-E3/52 is strictly for DC-biased or single-polarity line protection.
SMBG36A-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):
- 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-E3/52 FAQ
1.How can I place an order for SMBG36A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG36A-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 SMBG36A-E3/52 reliable?
The price and inventory of SMBG36A-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 SMBG36A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG36A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG36A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG36A-E3/52?
SMBG36A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG36A-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 SMBG36A-E3/52?
For technical support, including SMBG36A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG36A-E3/52 requirements.
6.How does Aetrix verify that SMBG36A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG36A-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 SMBG36A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG36A-E3/52?
All SMBG36A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG36A-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 SMBG36A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG36A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG36A-E3/52 Tags
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