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Vishay General Semiconductor - Diodes Division SMBG30CHE3/5B
- Part No.:
- SMBG30CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG30CHE3/5B.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,020
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Product details
Overview
SMBG30CHE3/5B 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 a 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 48.4 V maximum clamping voltage (VC) at 12.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform).
For engineers reviewing the SMBG30CHE3/5B datasheet, SMBG30CHE3/5B pinout, SMBG30CHE3/5B application, or SMBG30CHE3/5B equivalent, this AEC-Q101 qualified, RoHS-compliant TVS diode supports automotive-grade ESD and surge protection design with validated thermal resistance (RθJA = 100 °C/W) and low incremental surge resistance.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the DO-215AA package provides mechanical reliability and compatibility with automated SMT assembly.
The device meets UL 94 V-0 flammability requirements and is rated for operating junction temperatures from –55 °C to +150 °C. Its 600 W peak pulse power rating is specified under 10/1000 µs waveform with 0.01 % duty cycle, and derating applies above TA = 25 °C per published thermal curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected circuitry. |
| VBR (min/max) | 33.3 V / 36.8 V at IT = 1 mA - Confirmed breakdown range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 48.4 V at 12.4 A - Clamped voltage seen by downstream components during 600 W transient; limits stress on ICs or MOSFETs. |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity; supports IEC 61000-4-5 Level 4 (4 kV) compliance when properly laid out. |
| TJ max | +150 °C - Maximum junction temperature rating enabling use in under-hood automotive environments and industrial enclosures. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking and power derating requirements. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
DO-215AA (SMBG) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminals 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; either lead serves as input/output for bidirectional clamping. |
| Case (exposed metal area) | Thermal and mechanical anchor | Not electrically connected; provides thermal dissipation path and mechanical stability on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against high-energy surges such as ISO 7637-2 Load Dump or IEC 61000-4-5 combination wave without degradation. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across temperature and lifetime, critical for safety-critical systems. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-related defects or parametric shift. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and automotive modules subject to safety certification. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus or 12 V supply rails in vehicle body control modules from load dump and jump-start transients. IC Role / Device Role / Timing Role: Bi-directional clamping element placed upstream of LDOs and microcontrollers to limit voltage excursions below absolute maximum ratings. Use Value: Withstands 600 W surges and maintains clamping at ≤48.4 V, preventing latch-up or permanent damage to 5 V/3.3 V logic powered from protected rail. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) and digital I/O (RS-485, CAN FD stubs) in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Fast-response shunt protector that activates within nanoseconds to clamp induced spikes before they reach precision ADCs or isolated gate drivers. Use Value: Low clamping voltage (48.4 V) and sub-1 ns response ensure signal integrity preservation and prevent false triggering in noise-sensitive measurement circuits. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feed Protection |
|
Use Scenario: Secondary-level surge suppression on VBUS line of USB 2.0/3.0 ports in set-top boxes and smart displays subjected to ESD and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary common-mode choke to absorb differential-mode surges exceeding ±15 kV contact ESD (IEC 61000-4-2). Use Value: 30 V VWM allows compatibility with 5 V nominal bus while 48.4 V VC prevents overvoltage stress on USB PHY transceivers rated to 5.5 V absolute max. |
Use Scenario: Protecting -48 V DC power feed inputs in remote radio heads and small-cell base stations from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: High-power bi-directional clamp installed at entry point to suppress common-mode transients coupled onto telecom power pairs. Use Value: 600 W rating and 150 °C TJ max enable reliable operation in uncooled outdoor enclosures where ambient exceeds 85 °C. |
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 | Same VWM (30 V), identical DO-214AA package, but lower PPPM (600 W same), slightly higher VC (48.4 V vs. 49.9 V); not AEC-Q101 qualified. | Lacks automotive qualification; suitable for commercial/industrial use only. | Select SMBJ30CA only if AEC-Q101 is not required and cost optimization is prioritized. |
| SMAJ30A | Uni-directional variant in smaller DO-214AC (SMA) package; same VWM/VBR/VC specs but lower thermal mass and RθJA = 150 °C/W. | Requires polarity-aware layout; limited to DC-biased lines; unsuitable for AC or differential signals. | Choose SMAJ30A only for space-constrained, uni-polar DC applications where footprint reduction outweighs bidirectional capability. |
Compared with SMBJ30CA and SMAJ30A, the SMBG30CHE3/5B uniquely combines AEC-Q101 qualification, bi-directional symmetry, and DO-215AA mechanical robustness-making it the only option qualified for automotive signal/power line protection where polarity independence and reliability validation are mandatory.
Availability
SMBG30CHE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom infrastructure requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBG30CHE3/5B 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMBG series was developed specifically for high-reliability transient suppression in harsh environments-targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and robust surge handling.
FAQ
What is the polarity configuration of SMBG30CHE3/5B?
The SMBG30CHE3/5B is a bi-directional TVS diode with symmetrical terminal behavior-neither lead is designated anode or cathode. This enables placement on AC-coupled lines, differential buses (e.g., RS-485), or any path where voltage transients may occur in either polarity. No band marking is present on the DO-215AA package.
Does SMBG30CHE3/5B meet automotive qualification standards?
Yes, SMBG30CHE3/5B carries the HE3 suffix indicating AEC-Q101 qualification. It has passed stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), confirming suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage for SMBG30CHE3/5B under surge conditions?
The SMBG30CHE3/5B exhibits a maximum clamping voltage (VC) of 48.4 V when subjected to its rated peak pulse current (IPPM) of 12.4 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 12-Nov-12.
Can SMBG30CHE3/5B be used in place of a uni-directional TVS like SMAJ30A?
No-SMBG30CHE3/5B is bi-directional and lacks polarity marking, while SMAJ30A is uni-directional with a cathode band. Substituting SMBG30CHE3/5B for SMAJ30A on a DC-biased line introduces no functional risk, but replacing SMBG30CHE3/5B with SMAJ30A on AC or differential lines will result in improper clamping during negative transients.
What packaging format does SMBG30CHE3/5B ship in?
SMBG30CHE3/5B ships in 13-inch diameter plastic tape and reel format, with a base quantity of 3200 units per reel (ordering code suffix "5B"). The tape conforms to EIA-481 standards and supports high-speed pick-and-place assembly with verified lead coplanarity and moisture sensitivity level (MSL) 1.
SMBG30CHE3/5B 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:
- 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)
SMBG30CHE3/5B FAQ
1.How can I place an order for SMBG30CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG30CHE3/5B 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 SMBG30CHE3/5B reliable?
The price and inventory of SMBG30CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG30CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG30CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG30CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG30CHE3/5B?
SMBG30CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG30CHE3/5B 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 SMBG30CHE3/5B?
For technical support, including SMBG30CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG30CHE3/5B requirements.
6.How does Aetrix verify that SMBG30CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG30CHE3/5B 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 SMBG30CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG30CHE3/5B?
All SMBG30CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG30CHE3/5B, 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 SMBG30CHE3/5B part is unused and in its original packaging.
Return procedure for SMBG30CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG30CHE3/5B Tags
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