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Vishay General Semiconductor - Diodes Division SMBG7.5C-E3/52
- Part No.:
- SMBG7.5C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.5C-E3/52.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,196
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Product details
Overview
SMBG7.5C-E3/52 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 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA test current, 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 in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG7.5C-E3/52 datasheet, SMBG7.5C-E3/52 pinout, SMBG7.5C-E3/52 application, or SMBG7.5C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage performance and low incremental surge resistance under repetitive transient stress.
The device delivers 600 W peak pulse power handling per 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, and maintains clamping performance across -55 °C to +150 °C operating junction temperature range. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead) under specified mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse stand-off voltage before significant leakage; defines safe operating margin below breakdown. |
| VBR (min/max) | 8.33 V / 9.21 V at IT = 1.0 mA - Confirmed breakdown threshold range; ensures reliable triggering during overvoltage events. |
| VC @ IPPM | 12.9 V at 46.5 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power dissipation capability; supports high-energy transients common in automotive load-dump or inductive switching. |
| IPPM | 46.5 A - Peak pulse current corresponding to VC; determines minimum trace width and PCB layout robustness. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial environments. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; supports standard reflow without dry-pack or baking requirements. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing configuration. Bi-directional construction means no cathode marking; terminals are symmetrical and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct surge current equally in either direction; no polarity dependency in PCB layout. |
| Case / Body | Thermal and mechanical reference | DO-215AA molded body provides UL 94 V-0 flammability rating and mechanical stability during reflow and vibration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term reliability and stable leakage (<1.0 µA at VWM) across temperature and humidity stress. |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive load switching, ESD, and lightning-induced surges in industrial systems. |
| Matte tin plated leads | Guarantees solderability per J-STD-002 and JESD 22-B102; E3 suffix meets JESD 201 Class 1A whisker resistance. |
| Low profile DO-215AA package | 0.235–0.255 inch length, 0.130–0.155 inch width; compatible with high-density PCB layouts and automated pick-and-place. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Limits transient voltage to ≤12.9 V during 46.5 A surges, preserving signal integrity and preventing latch-up in downstream op-amps or ADCs. |
Use Scenario: Safeguarding RS-485, RS-232, or 4–20 mA loop interfaces in PLC modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Primary line-level surge suppressor mounted adjacent to connector, operating in parallel with data lines. Use Value: Maintains <1.0 µA leakage at 7.5 V, ensuring minimal impact on precision current-loop accuracy while clamping fast-rising EFT bursts. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
|
Use Scenario: Secondary-side DC bus protection in wall adapters subjected to conducted surges from mains or connected devices. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed across +VOUT/GND to absorb repetitive switching noise and accidental overvoltage. Use Value: Withstands 600 W pulses at 0.01% duty cycle, enabling reliable operation in cost-sensitive consumer power supplies. |
Use Scenario: Protecting Ethernet PHY or DSL line drivers from induced surges on telecom infrastructure equipment. IC Role / Device Role / Timing Role: Bi-directional transient suppressor integrated into front-end filter stage of line card PCB. Use Value: Symmetric clamping ensures equal protection for differential pairs without polarity alignment concerns during assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA-E3/52 | Same VWM (7.5 V), identical DO-214AA package; lower PPPM = 600 W but higher VC = 13.4 V at same IPPM. | Less aggressive clamping; suitable where margin to downstream IC abs-max is >13.4 V. | Select SMBJ7.5CA-E3/52 only if footprint compatibility with DO-214AA is required and higher clamping voltage is acceptable. |
| SMCJ7.5CA-E3/52 | Same VWM and bi-directionality; larger DO-214AB package; higher PPPM = 1500 W and VC = 12.9 V at 114 A. | Higher surge capacity for harsher environments (e.g., railway or heavy industrial); requires larger PCB area. | Choose SMCJ7.5CA-E3/52 when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space permits larger footprint. |
Compared with SMBJ7.5CA-E3/52 and SMCJ7.5CA-E3/52, the SMBG7.5C-E3/52 offers identical clamping voltage to the SMCJ variant but in a smaller DO-215AA package, while providing tighter VBR tolerance than SMBJ - making it optimal for space-constrained automotive and industrial designs requiring precise voltage limiting.
Availability
SMBG7.5C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line card surge suppression requiring stable component supply, AEC-Q101 compliance, and RoHS-conforming manufacturing.
Supply support for SMBG7.5C-E3/52 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMBG series was developed specifically for surface-mount transient suppression in space-constrained, high-reliability applications - combining AEC-Q101 qualification, MSL Level 1 handling, and optimized thermal performance in the DO-215AA footprint.
FAQ
What is the polarity configuration of SMBG7.5C-E3/52?
The SMBG7.5C-E3/52 is a bi-directional TVS diode with symmetrical terminals and no cathode band marking. Its electrical characteristics apply identically in both directions, making it suitable for AC-coupled signals, differential buses, or any application where polarity cannot be guaranteed during installation or operation. This eliminates orientation errors during automated placement.
Does SMBG7.5C-E3/52 meet automotive qualification standards?
Yes, SMBG7.5C-E3/52 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. The "HE3" variant (e.g., SMBG7.5CHE3/52) explicitly denotes AEC-Q101 qualification, while the base E3 suffix indicates commercial-grade RoHS compliance - both share identical electrical and thermal specs per Vishay Document 88456.
What is the maximum clamping voltage of SMBG7.5C-E3/52 under surge conditions?
The SMBG7.5C-E3/52 has a maximum clamping voltage (VC) of 12.9 V at 46.5 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by protected circuitry during worst-case transient events, ensuring downstream ICs remain within absolute maximum ratings.
How does SMBG7.5C-E3/52 differ from uni-directional variants like SMBG7.5A-E3/52?
The SMBG7.5C-E3/52 is bi-directional with no polarity marking and identical VBR, VC, and leakage behavior in both directions, whereas SMBG7.5A-E3/52 is uni-directional with a cathode band and conducts only in reverse bias. The "C" suffix explicitly denotes bi-directional function, critical for protecting AC signals or differential pairs where voltage polarity reverses during normal operation.
What PCB pad layout is recommended for SMBG7.5C-E3/52 to achieve rated thermal and surge performance?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal to achieve the rated 600 W peak pulse power and thermal resistance values. Smaller pads reduce heat dissipation and surge current handling, potentially causing premature failure. The DO-215AA outline drawing (Document 88456, page 4) defines exact land pattern dimensions and spacing for optimal solder joint reliability and thermal transfer.
SMBG7.5C-E3/52 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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 42A
- 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)
SMBG7.5C-E3/52 FAQ
1.How can I place an order for SMBG7.5C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.5C-E3/52 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 SMBG7.5C-E3/52 reliable?
The price and inventory of SMBG7.5C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.5C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG7.5C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.5C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.5C-E3/52?
SMBG7.5C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.5C-E3/52 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 SMBG7.5C-E3/52?
For technical support, including SMBG7.5C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.5C-E3/52 requirements.
6.How does Aetrix verify that SMBG7.5C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG7.5C-E3/52 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 SMBG7.5C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG7.5C-E3/52?
All SMBG7.5C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.5C-E3/52, 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 SMBG7.5C-E3/52 part is unused and in its original packaging.
Return procedure for SMBG7.5C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.5C-E3/52 Tags
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