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Vishay General Semiconductor - Diodes Division SMBG7.5CHE3/52
- Part No.:
- SMBG7.5CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.5CHE3/52.pdf
- Description:
- TVS DIODE 7.5VWM 14.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,454
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Product details
Overview
SMBG7.5CHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for robust overvoltage protection of sensitive electronics. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA test current, and clamps transients to ≤12.9 V at 46.5 A peak pulse current (IPPM), delivering 600 W peak pulse power with 10/1000 µs waveform.
For engineers reviewing the SMBG7.5CHE3/52 datasheet, SMBG7.5CHE3/52 pinout, SMBG7.5CHE3/52 application, or SMBG7.5CHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, low clamping voltage, 150 °C junction temperature rating, RoHS-compliant matte tin terminals, and suitability for automotive sensor line and MOSFET gate protection where fast response and high surge immunity are required.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to divert transient energy away from protected circuitry. Its glass-passivated junction ensures stable electrical characteristics and long-term reliability under repetitive surge stress.
The SMBG7.5CHE3/52 is rated for 100 A non-repetitive forward surge current (IFSM) and exhibits a typical thermal resistance of 20 °C/W (junction-to-lead), enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal - critical for sustaining performance in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe working margin for 5 V–7 V logic/sensor rails. |
| VBR min/max | 8.33 V / 9.21 V at 1.0 mA - Confirmed breakdown range ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | ≤12.9 V at 46.5 A - Clamping voltage limits downstream IC stress during 600 W transient events (10/1000 µs). |
| PPPM | 600 W - Peak pulse power handling capability meets IEC 61000-4-5 Level 4 surge immunity requirements. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| IFSM | 100 A - Withstands single 8.3 ms half-sine surge, protecting against inductive kickback in motor drivers and relay circuits. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount, low-profile gull-wing leadframe. Cathode indicated by band marking on body; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-impedance return path in unidirectional TVS configuration. |
| Cathode | Current exit point; marked with band | Connected to protected line (e.g., signal, power rail); clamping occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance per stress test requirements. |
| Glass-passivated junction | Ensures stable leakage current (<100 µA at VWM) and consistent VBR over lifetime and environmental stress. |
| MSL Level 1 (260 °C) | Compatible with standard SMT reflow profiles without moisture sensitivity concerns or baking requirements. |
| 600 W peak pulse power | Supports protection against severe transients such as ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 combination wave surges. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control units from load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor output and microcontroller ADC input. Use Value: Limits voltage excursion to ≤12.9 V during 46.5 A transients, preventing ADC saturation and latch-up in 3.3 V/5 V systems. | Use Scenario: Shielding MOSFET gate drivers from Miller-induced spikes and cross-talk in 24 V/48 V BLDC motor inverters. IC Role / Device Role / Timing Role: Fast-response TVS connected between gate and source to clamp dv/dt-induced overshoot. Use Value: Sub-1 ns response time and low incremental surge resistance preserve gate oxide integrity and prevent false turn-on. |
| Telecom Line Interface Protection | Consumer Power Supply Input Clamping |
Use Scenario: Safeguarding Ethernet PHY or RS-485 transceivers against ESD and lightning-induced surges on field wiring. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair inputs, upstream of common-mode chokes and secondary protection. Use Value: 600 W rating and 12.9 V clamping enable compliance with IEC 61000-4-5 (10/700 µs) up to 4 kV open-circuit voltage. | Use Scenario: Suppressing switch-mode power supply (SMPS) turn-off spikes on 5 V/12 V DC outputs feeding USB peripherals or display modules. IC Role / Device Role / Timing Role: Output-side TVS absorbing reflected energy from capacitive loads and cable disconnection events. Use Value: 7.5 V VWM allows use on 5 V rails with headroom; 150 °C TJ max supports operation near hot SMPS components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5AHE3/52 | Same VWM (7.5 V), identical DO-214AA (SMB) package but slightly higher VC (13.4 V @ 43.1 A); lower PPPM (600 W same, but lower IPPM due to package thermal limit). | Less suitable for space-constrained layouts requiring DO-215AA footprint; may require PCB redesign. | Select SMBG7.5CHE3/52 when DO-215AA mechanical compatibility or tighter clamping (12.9 V vs. 13.4 V) is critical. |
| 1.5SMC7.5AHE3/A | Higher power (1500 W), DO-214AB (SMC) package; larger footprint, higher thermal mass; VWM = 7.5 V, VC = 12.9 V @ 116.5 A. | Used where higher surge duty cycle or multi-pulse robustness is needed; not drop-in compatible due to size and pad layout. | Choose 1.5SMC7.5AHE3/A only if system-level testing confirms need for >600 W single-event handling or extended surge repetition. |
Compared with SMBJ7.5AHE3/52 and 1.5SMC7.5AHE3/A, the SMBG7.5CHE3/52 offers optimal balance of compact DO-215AA footprint, AEC-Q101 qualification, and lowest clamping voltage in its family - making it preferred for automotive and high-density industrial PCBs where layout area and voltage margin are constrained.
Availability
SMBG7.5CHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive gate protection, and telecom line interface applications requiring stable component supply, AEC-Q101 compliance, and repeatable surge immunity performance.
Supply support for SMBG7.5CHE3/52 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, efficiency, and automotive-grade qualification.
The SMBG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated at the component level.
FAQ
What is the clamping voltage of SMBG7.5CHE3/52 and how is it measured?
The SMBG7.5CHE3/52 has a maximum clamping voltage (VC) of 12.9 V, measured at 46.5 A peak pulse current (IPPM) using a 10/1000 µs double-exponential waveform. This value is guaranteed per datasheet Table 1 and reflects worst-case voltage seen by protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBG7.5CHE3/52 suitable for automotive applications?
Yes, SMBG7.5CHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, MSL Level 1 moisture sensitivity, and operation up to +150 °C junction temperature - meeting requirements for engine control, ADAS sensors, and body electronics where reliability under thermal and electrical stress is mandatory.
What does the "HE3" suffix indicate in SMBG7.5CHE3/52?
"HE3" denotes RoHS-compliant, AEC-Q101 qualified version with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. The "E3" base indicates commercial-grade RoHS compliance, while "H" adds automotive qualification - distinguishing it from non-qualified variants like SMBG7.5AE3/52.
How does SMBG7.5CHE3/52 differ from bi-directional TVS diodes like SMBG7.5CA?
SMBG7.5CHE3/52 is unidirectional and features a cathode band marking; it conducts only in reverse breakdown and blocks forward current above ~3.5 V. In contrast, SMBG7.5CA is bi-directional with no polarity marking and symmetrical clamping in both directions - used where AC signals or bidirectional data lines require protection without polarity constraints.
What PCB layout considerations apply to SMBG7.5CHE3/52 for optimal surge performance?
For best transient suppression, mount SMBG7.5CHE3/52 with minimum trace length between cathode and protected node, and connect anode directly to low-impedance ground plane. Use 5.0 mm × 5.0 mm copper pads per terminal as specified in the datasheet to maintain thermal performance and ensure 600 W pulse power capability remains intact during surge events.
SMBG7.5CHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG7.5CHE3/52 FAQ
1.How can I place an order for SMBG7.5CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.5CHE3/52 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 SMBG7.5CHE3/52 reliable?
The price and inventory of SMBG7.5CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.5CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG7.5CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.5CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.5CHE3/52?
SMBG7.5CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.5CHE3/52 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 SMBG7.5CHE3/52?
For technical support, including SMBG7.5CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.5CHE3/52 requirements.
6.How does Aetrix verify that SMBG7.5CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG7.5CHE3/52 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 SMBG7.5CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG7.5CHE3/52?
All SMBG7.5CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.5CHE3/52, 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 SMBG7.5CHE3/52 part is unused and in its original packaging.
Return procedure for SMBG7.5CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.5CHE3/52 Tags
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