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Vishay General Semiconductor - Diodes Division SMBG7.5CA-E3/5B
- Part No.:
- SMBG7.5CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.5CA-E3/5B.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,080
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Product details
Overview
SMBG7.5CA-E3/5B 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 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1 mA, 12.9 V maximum clamping voltage (VC) at 46.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces, industrial I/O ports, and telecom line drivers.
For engineers reviewing the SMBG7.5CA-E3/5B datasheet, SMBG7.5CA-E3/5B pinout, SMBG7.5CA-E3/5B application, or SMBG7.5CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.55), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with no polarity marking on the device body. Its glass-passivated junction enables fast response (<1 ns) to ESD and lightning-induced surges while maintaining low incremental surge resistance and stable clamping under repetitive 0.01% duty cycle conditions.
Thermal performance is defined by RθJA = 100 °C/W (on 0.2" × 0.2" pads) and RθJL = 20 °C/W, supporting operation from –55 °C to +150 °C junction temperature. It meets UL 497B recognition (QVGQ2) and complies with JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 8.33 V / 9.21 V at 1 mA - ensures reliable triggering across process variation and temperature |
| VC @ IPPM | 12.9 V at 46.5 A - limits downstream IC stress during 600 W transient events |
| PPPM | 600 W - peak power handling with 10/1000 μs waveform, enabling robust protection against IEC 61000-4-5 surges |
| IPPM | 46.5 A - peak pulse current capacity directly tied to PCB pad thermal design (0.2" × 0.2") |
| TJ max | +150 °C - supports under-hood automotive and high-temperature industrial environments |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow 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 anode/cathode pairs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path in either direction | Enables clamping of positive and negative transients without external polarity routing |
| Case (exposed metal slug) | Thermal conduction path | Requires direct connection to thermal copper pour for RθJA derating compliance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| Glass passivated junction | Ensures stable leakage (<1 μA at VWM) and long-term reliability under thermal cycling |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV surge) protection on 12 V/24 V systems with minimal footprint |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage stress on protected ICs compared to higher-ratio alternatives |
| UL 497B recognized (QVGQ2) | Meets safety agency requirements for telecom and industrial signal line protection |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Port |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor output and microcontroller input pin. Use Value: Limits transient voltage to ≤12.9 V during 46.5 A surges, preserving ADC accuracy and preventing latch-up in 3.3 V/5 V MCUs. | Use Scenario: Shielding PLC digital input modules from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Primary surge suppression device mounted directly at connector entry point. Use Value: Absorbs 600 W pulses without degradation, enabling >100,000 surge cycles per MIL-STD-883H Method 3015.8. |
| Telecom Line Driver Protection | USB Type-C Power Delivery Bus |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line transient suppressor on differential pair before common-mode choke. Use Value: Clamps common-mode transients to <13 V within <1 ns, maintaining signal integrity up to 25 Mbps. | Use Scenario: Protecting VBUS lines in USB-C PD controllers from hot-swap and fault-current transients. IC Role / Device Role / Timing Role: Secondary overvoltage clamp parallel to primary OVP IC on 20 V PD rail. Use Value: Activates at 8.33 V breakdown to limit overshoot during 20 V → 0 V transitions, preventing gate oxide damage in GaN FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Same VWM (7.5 V), but lower PPPM = 600 W (same), higher VC = 13.4 V at 43.3 A; SMB (DO-214AA) package, 1.6 mm taller | Less suitable for ultra-low-profile designs; slightly higher clamping voltage increases risk to 3.3 V logic | Select SMBJ7.5CA only if legacy SMB footprint is required and height allowance permits. |
| SMCJ7.5CA | Same VWM and VBR, but PPPM = 1500 W, VC = 12.9 V at 116 A; larger SMC (DO-214AB) package, higher thermal mass | Over-specified for 600 W needs; requires larger PCB area and different pad layout | Choose SMCJ7.5CA only when system-level surge testing exceeds IEC 61000-4-5 Level 4 or repeated surge endurance is critical. |
Compared with SMBJ7.5CA and SMCJ7.5CA, SMBG7.5CA-E3/5B delivers identical clamping performance at 12.9 V but in the lowest-profile SMBG package, enabling tighter board stacking and AEC-Q101-compliant automotive deployment without sacrificing surge margin.
Availability
SMBG7.5CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O hardening, and telecom line driver safeguarding requiring stable component supply and full traceability.
Supply support for SMBG7.5CA-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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, AEC-Q qualification, and application-specific optimization.
The SMBG series is engineered for high-reliability surface-mount transient suppression in space-constrained automotive and industrial systems, prioritizing low profile, MSL Level 1 compatibility, and consistent clamping under thermal stress.
FAQ
What is the breakdown voltage range for SMBG7.5CA-E3/5B?
The SMBG7.5CA-E3/5B has a guaranteed breakdown voltage (VBR) range of 8.33 V to 9.21 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable clamping onset across temperature and manufacturing lot, critical for protecting 5 V and 3.3 V logic interfaces without premature conduction.
Is SMBG7.5CA-E3/5B suitable for automotive applications?
Yes, SMBG7.5CA-E3/5B is AEC-Q101 qualified and rated for –55 °C to +150 °C junction temperature. Its glass-passivated junction, MSL Level 1 rating, and UL 497B recognition make it appropriate for under-hood and cabin-mounted automotive systems, including CAN/LIN sensor nodes and powertrain control modules where SMBG7.5CA-E3/5B provides certified transient immunity.
What is the maximum clamping voltage of SMBG7.5CA-E3/5B under surge conditions?
The SMBG7.5CA-E3/5B clamps to a maximum of 12.9 V at its rated peak pulse current of 46.5 A (10/1000 μs waveform). This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards, ensuring repeatable protection performance in production PCB layouts.
Does SMBG7.5CA-E3/5B have polarity markings?
No, SMBG7.5CA-E3/5B is a bidirectional TVS and carries no polarity marking on the package. Its symmetrical construction allows installation in either orientation on the PCB, simplifying assembly and eliminating orientation-related field failures - a key advantage over unidirectional variants like SMBG7.5A.
What packaging format does SMBG7.5CA-E3/5B ship in?
SMBG7.5CA-E3/5B ships in 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel (package code "5B"). The "E3" suffix indicates RoHS-compliant, industrial-grade construction with matte tin-plated leads meeting J-STD-002 solderability requirements.
SMBG7.5CA-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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 46.5A
- 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)
SMBG7.5CA-E3/5B FAQ
1.How can I place an order for SMBG7.5CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.5CA-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 SMBG7.5CA-E3/5B reliable?
The price and inventory of SMBG7.5CA-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 SMBG7.5CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG7.5CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.5CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.5CA-E3/5B?
SMBG7.5CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.5CA-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 SMBG7.5CA-E3/5B?
For technical support, including SMBG7.5CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.5CA-E3/5B requirements.
6.How does Aetrix verify that SMBG7.5CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG7.5CA-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 SMBG7.5CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG7.5CA-E3/5B?
All SMBG7.5CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.5CA-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 SMBG7.5CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG7.5CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.5CA-E3/5B Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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