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Vishay General Semiconductor - Diodes Division SMBG36CA-E3/52
- Part No.:
- SMBG36CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG36CA-E3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,431
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Product details
Overview
SMBG36CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal and power lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), <1.0 μA reverse leakage at VWM, and clamps to ≤58.1 V at 10.3 A peak pulse current - used for ESD and surge protection in automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMBG36CA-E3/52 datasheet, SMBG36CA-E3/52 pinout, SMBG36CA-E3/52 application, or SMBG36CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C junction temperature rating, low-profile SMBG package compatibility with automated SMT placement, and compliance with UL 497B for telecom and automotive protectors.
Technical Context
This device operates as a voltage-clamping protector in bidirectional configurations, responding to both positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the 10/1000 μs waveform rating reflects standardized lightning-surge immunity testing per ANSI/IEEE C62.35.
The SMBG36CA-E3/52 is rated for repetitive surge duty cycle of 0.01 % and derates linearly above 25 °C ambient, with thermal resistance of 100 °C/W (junction-to-ambient) on 5.0 mm × 5.0 mm copper pads. It meets MSL Level 1 per J-STD-020 and supports peak forward surge current up to 100 A (8.3 ms half-sine) only in unidirectional variants - not applicable here due to bidirectional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - guaranteed breakdown threshold range defining turn-on consistency |
| IPPM | 10.3 A - peak pulse current at which clamping voltage is measured (10/1000 μs waveform) |
| VC | ≤58.1 V - maximum clamped voltage under 10.3 A transient, limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling capacity, enabling robust protection against IEC 61000-4-5 surges |
| TJ max | +150 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| Leakage (ID) | ≤1.0 μA at VWM - negligible standby power loss and minimal signal line loading |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002; no polarity marking for bidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as cathode during positive transients and anode during negative transients - symmetrical conduction |
| Cathode | Transient return path (bidirectional) | Acts as anode during positive transients and cathode during negative transients - identical electrical behavior to Anode terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy surges typical of ISO 7637-2 Load Dump and IEC 61000-4-5 Level 4 events |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift over temperature and lifetime |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free reflow profiles without preconditioning or special handling |
| UL 497B recognized (QVGQ2) | Approved for use in telecom and industrial communication port protection per safety standards |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor signal lines (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed across differential or single-ended signal pairs upstream of interface ICs. Use Value: Limits transient voltage to ≤58.1 V, preventing latch-up or damage to 3.3 V/5 V sensor interface ICs while maintaining signal integrity via low capacitance. | Use Scenario: Safeguarding digital input/output terminals of programmable logic controllers against field-induced surges and ground bounce. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on each I/O line, referenced to common ground or supply rail. Use Value: Absorbs 600 W surge energy without degradation, enabling reliable operation in factory-floor environments with frequent motor switching and relay noise. |
| Telecom Line Interface | Consumer Appliance Power Input |
Use Scenario: Protecting Ethernet PHY, RS-485, or DSL line drivers from lightning-induced surges and induced transients on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on line-side traces, coordinated with secondary GDT or MOV stages. Use Value: UL 497B recognition confirms suitability for telecom safety-critical ports; fast response time minimizes overshoot before clamping engages. | Use Scenario: Suppressing switch-mode power supply turn-on transients and ESD on AC/DC adapter inputs in white goods and smart home hubs. IC Role / Device Role / Timing Role: Across-line (L–N) or line-to-ground (L–G/N–G) placement on primary-side PCB traces. Use Value: 36 V VWM allows safe operation with 24 V DC or rectified 32 VAC nominal supplies while clamping >50 V spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-E3/52 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package: SMB (DO-214AA), slightly larger footprint and higher RθJA (110 °C/W) | Less suitable for ultra-dense layouts; may require larger pad area for thermal performance | Select when existing design uses SMB footprint or requires legacy footprint compatibility |
| SMCJ36CA-E3/52 | Same electrical specs, but larger SMC (DO-214AB) package, higher PPPM = 1500 W, RθJA = 50 °C/W | Better thermal handling for high-repetition surges; overqualified for space-constrained consumer designs | Select when system-level surge test requirements exceed 600 W or board layout allows larger case |
Compared with SMBJ36CA-E3/52 and SMCJ36CA-E3/52, the SMBG36CA-E3/52 delivers identical clamping performance in the smallest possible surface-mount TVS footprint (DO-215AA), enabling higher board density and improved manufacturability in automotive and portable industrial modules without sacrificing AEC-Q101 compliance or UL recognition.
Availability
SMBG36CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer appliance power inputs requiring stable component supply and full traceability.
Supply support for SMBG36CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMBG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-density, AEC-Q101-compliant transient protection in harsh electromagnetic environments across automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMBG36CA-E3/52 at its rated peak pulse current?
The SMBG36CA-E3/52 has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current (IPPM) of 10.3 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream circuitry remains within safe operating limits during surge events. The SMBG36CA-E3/52 maintains this clamping performance across its full operating temperature range.
Is SMBG36CA-E3/52 suitable for automotive applications?
Yes, SMBG36CA-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted modules. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and UL 497B recognition support deployment in engine control units, ADAS sensors, and body electronics. The SMBG36CA-E3/52 meets stringent reliability and thermal cycling requirements defined in the AEC-Q101 stress test standard.
Does SMBG36CA-E3/52 have polarity markings on the package?
No, SMBG36CA-E3/52 does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMBG36A), the SMBG36CA-E3/52 functions identically in both directions and has no cathode band or other orientation indicator. This simplifies PCB layout and eliminates risk of incorrect orientation during assembly - a key advantage for automated placement of the SMBG36CA-E3/52.
What is the reverse leakage current specification for SMBG36CA-E3/52 at its stand-off voltage?
The SMBG36CA-E3/52 specifies a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 36 V and ambient temperature of 25 °C. This low leakage ensures minimal power loss and signal interference in always-on or battery-powered systems. The SMBG36CA-E3/52 maintains leakage below 5 μA even at elevated temperatures up to 125 °C, as confirmed by Vishay's thermal derating curves.
How does the SMBG (DO-215AA) package of SMBG36CA-E3/52 compare to SMB (DO-214AA) in thermal performance?
The SMBG (DO-215AA) package of SMBG36CA-E3/52 offers a thermal resistance (RθJA) of 100 °C/W on 5.0 mm × 5.0 mm copper pads, compared to ~110 °C/W for the SMB (DO-214AA) variant. Though slightly less efficient than SMB, the SMBG36CA-E3/52 achieves superior board-area efficiency and is optimized for high-density routing. Its compact footprint makes the SMBG36CA-E3/52 ideal where space constraints outweigh marginal thermal differences.
SMBG36CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBG36CA-E3/52 FAQ
1.How can I place an order for SMBG36CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG36CA-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 SMBG36CA-E3/52 reliable?
The price and inventory of SMBG36CA-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 SMBG36CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG36CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG36CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG36CA-E3/52?
SMBG36CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG36CA-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 SMBG36CA-E3/52?
For technical support, including SMBG36CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG36CA-E3/52 requirements.
6.How does Aetrix verify that SMBG36CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG36CA-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 SMBG36CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG36CA-E3/52?
All SMBG36CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG36CA-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 SMBG36CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG36CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG36CA-E3/52 Tags
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