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Vishay General Semiconductor - Diodes Division SMBG30HE3/52
- Part No.:
- SMBG30HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG30HE3/52.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,891
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Product details
Overview
SMBG30HE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 48.4 V clamping voltage (VC) at 12.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG30HE3/52 datasheet, SMBG30HE3/52 pinout, SMBG30HE3/52 application, or SMBG30HE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, RoHS-compliant lead finish, and precise mechanical dimensions - all critical for ESD/surge co-design, PCB layout validation, and automotive-grade reliability assurance.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device: under normal bias it presents high impedance (>1 µA leakage at 30 V), then rapidly avalanches below 37 V to clamp transients. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low dynamic impedance (<0.5 Ω), enabling sub-nanosecond response to EFT and lightning-induced surges.
Thermally, it sustains 150 °C maximum junction temperature with RθJA = 100 °C/W (on 5 mm × 5 mm copper pads) and RθJL = 20 °C/W, supporting high-reliability mounting in constrained automotive modules. The HE3 suffix confirms AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR @ IT = 1 mA | 33.3–36.8 V - Tight 5% tolerance breakdown range ensures predictable turn-on across temperature and unit variance. |
| VC @ IPPM = 12.4 A | 48.4 V - Clamped voltage during 600 W surge; limits downstream IC stress to <49 V under worst-case transient. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 (4 kV) compliance. |
| IFSM | 100 A - 8.3 ms half-sine surge rating; withstands motor-commutation spikes without degradation. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and sealed industrial enclosures. |
| RθJA | 100 °C/W - Requires minimum 5 mm × 5 mm copper pad per terminal for thermal derating per Fig. 2. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing, matte tin-plated leads solderable per J-STD-002/JESD22-B102; polarity indicated by cathode band on marked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential rail; completes clamping path during positive transients. |
| Cathode | Protected line input | Connected to protected line (e.g., 24 V supply or CAN_H); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
| Glass-passivated junction | Ensures long-term VBR stability and low leakage drift over 15-year service life in harsh environments. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements. |
| 600 W 10/1000 µs rating | Meets IEC 61000-4-5 surge immunity up to 4 kV (line-to-ground) in industrial and automotive applications. |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, critical for safety-critical automotive control units. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 24 V supply rail in BCM against load-dump transients (ISO 16750-2) and inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at power entry point before DC/DC converter input. Use Value: Limits voltage excursion to ≤48.4 V during 12.4 A surge, preventing damage to upstream PMICs and microcontrollers rated for 36 V absolute max. |
Use Scenario: Shields 24 V digital input channels of PLC I/O modules from field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: Primary front-end protection element mounted adjacent to connector, before optocoupler or Schmitt trigger input stage. Use Value: Clamps fast-rising transients (<1 ns rise time) within 100 ps, preserving signal integrity while meeting IEC 61000-4-4 Level 4 immunity. |
| Automotive Infotainment Power Supply | Telecom Remote Sensor Interface |
Use Scenario: Guards 5 V/3.3 V auxiliary rails in head-unit power tree against coupling from nearby RF modules and CAN bus noise. IC Role / Device Role / Timing Role: Secondary protection stage after bulk TVS, placed near SoC or memory power pins. Use Value: Provides low-capacitance (<100 pF) clamping without degrading high-speed DDR or USB signal integrity on shared power domains. |
Use Scenario: Protects RS-485 transceiver VCC and bus pins in outdoor environmental sensors exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; unidirectional SMBG30HE3/52 applied on VCC rail only, paired with bidirectional TVS on differential bus lines. Use Value: Withstands repetitive 100 A surges (per IEC 61000-4-5) without parametric shift, ensuring >10-year field reliability in unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30AHE3/52 | Same DO-215AA package, identical VWM/VBR/VC, but rated for 600 W with tighter VBR min/max (33.3–36.8 V vs. SMBG30HE3/52's 33.3–36.8 V - identical spec table entry). | No functional difference; SMBJ series uses DO-214AA (SMB) package with slightly different thermal pad layout. | Select SMBG30HE3/52 when DO-215AA gull-wing footprint and AEC-Q101 + Class 2 whisker compliance are mandatory. |
| 1.5SMC30AHE3/A | Higher 1500 W rating, DO-214AB (SMC) package, larger footprint (7.11 × 6.22 mm vs. SMBG's 4.57 × 3.94 mm), same VWM/VBR. | Suitable where higher surge margin is required and board space allows larger SMC package. | Choose SMBG30HE3/52 for space-constrained automotive modules where DO-215AA gull-wing enables automated placement and lower profile. |
Compared with SMBJ30AHE3/52 and 1.5SMC30AHE3/A, SMBG30HE3/52 offers identical electrical protection in a smaller, gull-wing DO-215AA package with validated AEC-Q101 stress performance - making it optimal for dense, high-reliability automotive PCBs where thermal pad area and mounting height are constrained.
Availability
SMBG30HE3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom remote sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG30HE3/52 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBG series was engineered specifically for AEC-Q101-compliant transient suppression in space-constrained automotive modules, emphasizing gull-wing manufacturability, thermal robustness, and repeatable clamping performance under thermal cycling.
FAQ
What is the maximum clamping voltage of SMBG30HE3/52 at its rated peak pulse current?
The SMBG30HE3/52 has a maximum clamping voltage (VC) of 48.4 V at its rated peak pulse current (IPPM) of 12.4 A, measured using the standardized 10/1000 µs double-exponential surge waveform. This value ensures downstream circuitry remains within safe voltage limits during transient events, and is confirmed in the Vishay datasheet Document Number 88456, Table on page 2.
Is SMBG30HE3/52 qualified for automotive applications?
Yes, SMBG30HE3/52 carries the HE3 suffix, which explicitly denotes AEC-Q101 qualification per Vishay's ordering nomenclature. It has passed stress tests including high-temperature operating life, temperature cycling, and ESD (HBM/MM), making it suitable for use in automotive body control modules, infotainment systems, and sensor interfaces per ISO/TS 16949 requirements.
What does the "HE3" suffix mean in SMBG30HE3/52?
The "HE3" suffix in SMBG30HE3/52 indicates two key attributes: "H" signifies AEC-Q101 qualification, and "E3" denotes RoHS-compliant, matte tin-plated leads meeting JESD201 Class 2 whisker resistance. This distinguishes it from commercial-grade "E3" variants and confirms suitability for automotive and high-reliability industrial deployments.
What is the thermal resistance from junction to ambient for SMBG30HE3/52?
The SMBG30HE3/52 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, as specified in the Thermal Characteristics table on page 3 of the Vishay datasheet 88456. This value must be used for thermal derating calculations above 25 °C ambient.
Can SMBG30HE3/52 be used in bi-directional protection circuits?
No - SMBG30HE3/52 is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed (e.g., 24 V supply to ground). For bi-directional applications such as AC lines or differential buses like RS-485, Vishay specifies CA-suffix parts (e.g., SMBG30CA); the "A" suffix in SMBG30HE3/52 confirms unidirectional configuration per the device marking code table on page 2.
SMBG30HE3/52 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 11.2A
- 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)
SMBG30HE3/52 FAQ
1.How can I place an order for SMBG30HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG30HE3/52 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 SMBG30HE3/52 reliable?
The price and inventory of SMBG30HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG30HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG30HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG30HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG30HE3/52?
SMBG30HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG30HE3/52 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 SMBG30HE3/52?
For technical support, including SMBG30HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG30HE3/52 requirements.
6.How does Aetrix verify that SMBG30HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG30HE3/52 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 SMBG30HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG30HE3/52?
All SMBG30HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG30HE3/52, 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 SMBG30HE3/52 part is unused and in its original packaging.
Return procedure for SMBG30HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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