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Vishay General Semiconductor - Diodes Division SMBG5.0CA-E3/5B
- Part No.:
- SMBG5.0CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5.0CA-E3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG5.0CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown voltage (VBR), 600 W peak pulse power (10/1000 μs), <1 ns response time, and AEC-Q101 qualification - deployed on signal lines and power rails in automotive sensor units and industrial control interfaces.
For engineers reviewing the SMBG5.0CA-E3/5B datasheet, SMBG5.0CA-E3/5B pinout, SMBG5.0CA-E3/5B application, or SMBG5.0CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability at low VWM, junction temperature derating above 25 °C, IPPM = 65.2 A at VC = 9.2 V, compliance with UL 497B, and MSL Level 1 reflow compatibility up to 260 °C.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (6.4 V / 7.25 V) and clamping voltage (VC = 9.2 V at IPPM = 65.2 A) in either direction. Its glass-passivated junction ensures stable leakage (<800 μA at VWM) and low incremental surge resistance, enabling precise voltage limiting during fast transients such as ESD or inductive switching spikes.
The device is rated for TJ = –55 °C to +150 °C, with thermal resistance RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 20 °C/W. It meets JESD201 Class 2 whisker resistance and is qualified per AEC-Q101 - confirming suitability for automotive under-hood and ADAS sensor protection where reliability under thermal cycling and mechanical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below system supply or signal swing. |
| VBR (min/max) | 6.4 V / 7.25 V - Breakdown occurs within this band at 10 mA test current; ensures predictable turn-on without premature clamping. |
| VC @ IPPM | 9.2 V at 65.2 A - Clamped voltage during 600 W 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power handling capacity; supports repetitive surges at 0.01% duty cycle without degradation. |
| IPPM | 65.2 A - Peak surge current supported at VC; determines minimum trace width and PCB layout robustness required. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in high-ambient environments like engine compartments. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard SMT reflow up to 260 °C peak without baking. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Bidirectional configuration has no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as anode or cathode depending on transient polarity; no marking required. |
| Case (body) | Thermal and mechanical interface | Exposed metal slug provides primary heat dissipation path to PCB copper; requires ≥5.0 mm × 5.0 mm pad per terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients from load dump or relay coil de-energization without failure. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<800 μA) over lifetime and temperature extremes. |
| UL 497B recognition (QVGQ2) | Meets safety standards for telecom and industrial signal line protectors; simplifies end-equipment certification. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-bake requirements and supports high-throughput automated assembly in production lines. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ISO 7637-2 pulses and ESD events in vehicle ECUs. IC Role / Device Role: Bidirectional clamping element placed directly at connector entry point, shunting surge energy to ground before reaching signal conditioning circuitry. Use Value: Maintains signal integrity by clamping transients to ≤9.2 V while surviving repeated 600 W surges - critical for ASIL-B compliant systems. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced transients and relay contact bounce. IC Role / Device Role: Primary overvoltage clamp on each isolated input channel, mounted adjacent to optocoupler input pins. Use Value: Enables reliable operation at ambient temperatures up to +85 °C with full derating margin to TJ = +150 °C. |
| Telecom Line Interface | Consumer Power Adapter Output |
|
Use Scenario: Protecting Ethernet PHYs and PoE injectors from lightning-induced surges on twisted-pair data lines per IEC 61000-4-5. IC Role / Device Role: Secondary-level TVS placed after common-mode chokes, providing differential-mode surge suppression. Use Value: UL 497B recognition supports direct integration into certified telecom equipment without additional safety review. |
Use Scenario: Clamping output overvoltage on 5 V USB-C PD adapters during fault conditions (e.g., feedback loop failure). IC Role / Device Role: Final-stage crowbar device across output capacitor, triggered only during catastrophic regulator failure. Use Value: Fast <1 ns response prevents downstream device latch-up or permanent damage when VOUT exceeds 5.5 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA-E3/52 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different packaging (7" reel, 750 pcs); identical SMB (DO-214AA) footprint - not pin-compatible due to larger body size and different thermal pad layout. | Preferred for legacy designs using SMB package; unsuitable for space-constrained layouts requiring SMBG's smaller outline and lower profile. | Select SMBG5.0CA-E3/5B when board area is limited or thermal performance on small pads must be maximized. |
| SMCJ5.0CA-E3/5B | Higher PPPM = 1500 W, same VWM/VBR, but larger SMC (DO-214AB) package; RθJA = 15 °C/W vs. 100 °C/W - significantly better thermal performance but requires 3× PCB area. | Used where higher surge immunity is mandated (e.g., industrial motor drives), but incompatible with SMBG footprints and reflow profiles. | Choose SMBG5.0CA-E3/5B for cost-sensitive, space-constrained automotive modules where 600 W meets ISO 16750-2 requirements. |
Compared with SMBJ5.0CA-E3/52 and SMCJ5.0CA-E3/5B, SMBG5.0CA-E3/5B delivers optimal balance of compact SMBG footprint, AEC-Q101 qualification, and verified 600 W surge handling - making it the preferred choice for next-generation automotive sensor nodes and miniaturized industrial I/O modules.
Availability
SMBG5.0CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SMBG5.0CA-E3/5B 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBG series was engineered specifically for space-constrained, high-surge automotive and industrial applications - combining AEC-Q101 qualification, ultra-low profile packaging, and repeatable clamping performance across temperature and lifetime.
FAQ
What is the maximum clamping voltage of SMBG5.0CA-E3/5B at its rated peak pulse current?
The SMBG5.0CA-E3/5B clamps to a maximum of 9.2 V at its peak pulse current (IPPM) of 65.2 A, measured under the standardized 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and ensures downstream ICs remain within absolute maximum ratings during surge events. The SMBG5.0CA-E3/5B achieves this with low incremental surge resistance and a tightly controlled VBR band of 6.4–7.25 V.
Is SMBG5.0CA-E3/5B suitable for automotive under-hood applications?
Yes, SMBG5.0CA-E3/5B is AEC-Q101 qualified and rated for junction temperatures up to +150 °C, making it suitable for under-hood automotive applications such as engine control modules and transmission sensors. Its glass-passivated junction and MSL Level 1 reflow compatibility ensure reliability through thermal cycling and high-temperature soldering. The SMBG5.0CA-E3/5B also meets UL 497B for safety-critical signal line protection in automotive systems.
How does the SMBG5.0CA-E3/5B differ from unidirectional variants like SMBG5.0A-E3/5B?
The SMBG5.0CA-E3/5B is bidirectional, meaning it provides symmetrical clamping in both polarities with identical VBR and VC characteristics - essential for AC-coupled or differential signal lines. In contrast, SMBG5.0A-E3/5B is unidirectional, featuring a cathode band and conducting only in reverse bias. The "CA" suffix explicitly denotes bidirectional functionality, and the SMBG5.0CA-E3/5B has no polarity marking on the case.
What is the recommended PCB pad layout for optimal thermal performance of SMBG5.0CA-E3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal to achieve the rated RθJA = 100 °C/W. The SMBG5.0CA-E3/5B's thermal path relies heavily on these pads; reducing pad size increases junction temperature and reduces surge endurance. For automotive applications, internal copper planes connected via multiple thermal vias are strongly recommended to maintain TJ < 150 °C during repetitive surges.
Does SMBG5.0CA-E3/5B meet RoHS and halogen-free requirements?
Yes, the SMBG5.0CA-E3/5B is RoHS compliant (per Directive 2011/65/EU) and carries the "E3" suffix indicating industrial-grade, lead-free, matte tin-plated terminations. It is not halogen-free - that designation requires the "M3" suffix (e.g., SMBG5.0CA-M3/5B). All E3 variants meet JESD201 Class 2 whisker resistance and are compatible with standard Pb-free reflow profiles up to 260 °C.
SMBG5.0CA-E3/5B 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBG5.0CA-E3/5B FAQ
1.How can I place an order for SMBG5.0CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5.0CA-E3/5B 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 SMBG5.0CA-E3/5B reliable?
The price and inventory of SMBG5.0CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5.0CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG5.0CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5.0CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5.0CA-E3/5B?
SMBG5.0CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5.0CA-E3/5B 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 SMBG5.0CA-E3/5B?
For technical support, including SMBG5.0CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5.0CA-E3/5B requirements.
6.How does Aetrix verify that SMBG5.0CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG5.0CA-E3/5B 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 SMBG5.0CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG5.0CA-E3/5B?
All SMBG5.0CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5.0CA-E3/5B, 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 SMBG5.0CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG5.0CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5.0CA-E3/5B Tags
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