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Vishay General Semiconductor - Diodes Division SMBG30CHE3/52
- Part No.:
- SMBG30CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG30CHE3/52.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,626
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Product details
Overview
SMBG30CHE3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 30 V stand-off voltage (VWM), 48.4 V maximum clamping voltage at 12.4 A peak pulse current, 600 W peak pulse power rating with 10/1000 µs waveform, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG30CHE3/52 datasheet, SMBG30CHE3/52 pinout, SMBG30CHE3/52 application, or SMBG30CHE3/52 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, bi-directional protection capability, RoHS-compliant AEC-Q101 qualification, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 33.3–36.8 V (min/max) under 1 mA test current. Its low incremental surge resistance enables stable clamping during repetitive transients, while glass-passivated junction ensures robustness against moisture and contamination.
The device meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak temperature, and its thermal design relies on PCB copper pad area (0.2" × 0.2") to sustain 600 W pulse dissipation. Junction-to-lead thermal resistance of 20 °C/W supports localized heat transfer to PCB traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA, defining turn-on threshold |
| VC @ IPPM | 48.4 V - Clamped voltage at 12.4 A peak pulse current, limiting downstream stress |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform, derated above 25 °C |
| IPPM | 12.4 A - Maximum non-repetitive surge current the device safely conducts |
| TJ max | +150 °C - Maximum junction temperature, enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient, dependent on 5.0 mm × 5.0 mm copper pad layout |
Pinout & Package
DO-215AA (SMBG) surface-mount package: molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking for bi-directional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between terminals; voltage clamping occurs identically in either direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Enhanced reliability in humid or contaminated environments without hermetic sealing |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from load dump or ESD events in industrial and automotive systems |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance, suitable for long-life automotive modules |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus or CAN FD power rails from load-dump transients in vehicle body electronics. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between power rail and ground to limit surge-induced overvoltage. Use Value: Clamps 12 V system transients to ≤48.4 V, preventing damage to 3.3 V/5 V microcontrollers and transceivers. |
Use Scenario: Safeguarding analog outputs of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Transient suppression on 4–20 mA current loop supply lines exposed to relay switching noise. Use Value: Maintains signal integrity by limiting induced spikes to sub-50 V levels without affecting DC bias or bandwidth. |
| Telecom Equipment Surge Protection | Consumer Device USB Port Protection |
Use Scenario: Shielding Ethernet PHY power pins from lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary-level TVS on 3.3 V/5 V bias rails feeding gigabit Ethernet magnetics. Use Value: Absorbs 600 W pulses without degradation, preserving PHY IC lifetime under repeated surge exposure. |
Use Scenario: Adding secondary-level protection on VBUS line of USB-C ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Fast-response clamp parallel to USB power delivery controller to suppress ESD and hot-swap transients. Use Value: Limits VBUS overshoot to 48.4 V during 8 kV contact ESD, avoiding latch-up in PD controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA-E3/52 | Same VWM (30 V) and VC (48.4 V), but lower PPPM = 600 W (identical), different package (DO-214AA/SMB) with higher RθJA (110 °C/W) | Less effective thermal dissipation on identical PCB layout; requires larger copper area for equivalent pulse handling | Select SMBJ30CA-E3/52 only if DO-214AA footprint is already standardized and thermal margin is verified. |
| 1.5KE30CA | Through-hole TO-218 package; same VWM/VC, but higher PPPM = 1500 W and slower response due to parasitic inductance | Not suitable for high-frequency transient suppression; used where mechanical ruggedness outweighs SMT density needs | Choose 1.5KE30CA only for legacy through-hole designs or where >1 kW surge energy must be absorbed. |
Compared with SMBJ30CA-E3/52 and 1.5KE30CA, SMBG30CHE3/52 offers superior thermal performance in SMT form factor (RθJA = 100 °C/W vs. 110 °C/W), AEC-Q101 qualification not present in SMBJ30CA-E3/52, and smaller footprint than 1.5KE30CA-making it optimal for space-constrained automotive and industrial modules requiring validated reliability.
Availability
SMBG30CHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer USB-C power delivery systems requiring stable component supply across multi-year production cycles.
Supply support for SMBG30CHE3/52 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 qualification.
The SMBG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 compliance, low clamping voltage, and repeatable surge endurance are mandatory.
FAQ
What is the polarity configuration of SMBG30CHE3/52?
SMBG30CHE3/52 is a bi-directional TVS diode with symmetrical terminal behavior-neither end is designated anode or cathode. The device clamps voltage transients equally in both directions, and no polarity marking appears on the package. This makes SMBG30CHE3/52 ideal for AC-coupled lines or differential buses where polarity reversal may occur.
Does SMBG30CHE3/52 meet automotive qualification standards?
Yes, SMBG30CHE3/52 carries the HE3 suffix, indicating full AEC-Q101 qualification per the Vishay datasheet revision 12-Nov-12. This certification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness-validating SMBG30CHE3/52 for use in engine control, infotainment, and ADAS subsystems.
What is the maximum clamping voltage for SMBG30CHE3/52 under surge conditions?
The maximum clamping voltage (VC) for SMBG30CHE3/52 is 48.4 V, measured at its peak pulse current (IPPM) of 12.4 A using the standard 10/1000 µs waveform. This value is guaranteed across the operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the DO-215AA (SMBG) package of SMBG30CHE3/52 compare thermally to DO-214AA (SMB)?
SMBG30CHE3/52 in DO-215AA achieves RθJA = 100 °C/W with 5.0 mm × 5.0 mm copper pads, whereas comparable DO-214AA devices like SMBJ30CA typically exhibit RθJA = 110 °C/W under identical conditions. The DO-215AA's wider lead frame and optimized internal thermal path provide measurably better heat dissipation for repetitive surge duty cycles.
Can SMBG30CHE3/52 be used in place of uni-directional TVS diodes?
No-SMBG30CHE3/52 is strictly bi-directional and must not replace uni-directional TVS diodes (e.g., SMBG30A) in DC-biased circuits. Applying reverse DC voltage across SMBG30CHE3/52 causes conduction in both directions, potentially disrupting bias networks. Use only where the protected line has no net DC polarity or employs AC coupling.
SMBG30CHE3/52 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBG30CHE3/52 FAQ
1.How can I place an order for SMBG30CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG30CHE3/52 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 SMBG30CHE3/52 reliable?
The price and inventory of SMBG30CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG30CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG30CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG30CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG30CHE3/52?
SMBG30CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG30CHE3/52 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 SMBG30CHE3/52?
For technical support, including SMBG30CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG30CHE3/52 requirements.
6.How does Aetrix verify that SMBG30CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG30CHE3/52 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 SMBG30CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG30CHE3/52?
All SMBG30CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG30CHE3/52, 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 SMBG30CHE3/52 part is unused and in its original packaging.
Return procedure for SMBG30CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG30CHE3/52 Tags
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