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Vishay General Semiconductor - Diodes Division SMBG8.0A-M3/52
- Part No.:
- SMBG8.0A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0A-M3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,293
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Product details
Overview
SMBG8.0A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, with 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1 mA, 13.6 V clamping voltage (VC) at 44.1 A peak pulse current, and 600 W peak pulse power rating under 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients.
For engineers reviewing the SMBG8.0A-M3/52 datasheet, SMBG8.0A-M3/52 pinout, SMBG8.0A-M3/52 application, or SMBG8.0A-M3/52 equivalent, key selection criteria include unidirectional polarity, 13.6 V clamping performance at rated surge current, AEC-Q101 qualification status, halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a clamping-type overvoltage protector: during normal operation it presents high impedance above its 8.0 V stand-off threshold; when subjected to transients exceeding its breakdown range (8.89–9.83 V), it avalanches rapidly to limit voltage across protected circuitry to ≤13.6 V at 44.1 A. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1 ns).
Thermal design relies on low RθJA = 100 °C/W (on 5.0 mm × 5.0 mm pads) and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C. The M3 suffix confirms halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance and MSL Level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - precise avalanche onset range defining turn-on consistency |
| VC @ IPPM | 13.6 V at 44.1 A - clamped voltage during 600 W transient, directly limiting stress on downstream ICs |
| ID @ VWM | <1.0 μA - ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| PPPM | 600 W - peak pulse power handling per 10/1000 μs waveform, supporting repetitive 0.01% duty cycle surges |
| TJ max | +150 °C - extended junction temperature rating enables use in under-hood automotive environments |
| Package | SMBG (DO-215AA) - low-profile SMT outline with 0.235–0.255" body length, optimized for automated placement |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing lead form, cathode indicated by band marking. Dimensions: 6.48 mm × 3.94 mm × 2.16 mm (L × W × H), 0.255" × 0.155" × 0.085". Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground during overvoltage events |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path with minimal inductance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| 600 W peak pulse power | Robust protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events without derating |
| Halogen-free (M3 suffix) | Meets stringent environmental requirements for automotive and industrial end equipment without compromising flame retardancy (UL 94 V-0) |
| Fast response time <1 ns | Clamps transients before sensitive logic or analog circuitry sustains damage |
| Low incremental surge resistance | Minimizes VC overshoot and improves clamping precision under high di/dt conditions |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails feeding ECUs, body control modules, and lighting drivers from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp transients to safe levels. Use Value: Limits voltage to ≤13.6 V during 600 W surges, preventing latch-up or gate oxide rupture in downstream LDOs and microcontrollers. | Use Scenario: Shielding analog front-end inputs of pressure, temperature, or position sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) clamping diode on sensor signal traces to suppress ESD and cable discharge events. Use Value: Maintains signal fidelity with sub-μA leakage while responding in <1 ns to 8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Safeguarding primary-side controllers and rectifiers in AC/DC adapters exposed to lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Stand-off-rated (8.0 V) TVS on secondary-side 5–12 V output rails to absorb cross-coupled transients. Use Value: Clamps 10/1000 μs surges to 13.6 V without degradation after repeated 600 W pulses, ensuring long-term adapter reliability. | Use Scenario: Protecting PoE-powered devices (e.g., IP cameras, wireless APs) from induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Unidirectional suppressor on DC input before DC/DC converter, referenced to chassis ground. Use Value: Withstands 100 A non-repetitive forward surge (IFSM) and maintains stable VBR across -55 °C to +150 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG8.0A-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Preferred for industrial-grade designs where halogen content is unrestricted | Select E3 for cost-sensitive non-automotive applications; M3 required for automotive AEC-Q101 and halogen-free mandates |
| SMBG8.0CA-M3/52 | Bidirectional variant; symmetric VBR (8.89–9.83 V), same VC and PPPM | Used where AC-coupled or dual-polarity signal lines require protection without polarity constraints | Choose CA version only if bidirectional clamping is needed; unidirectional SMBG8.0A-M3/52 offers lower leakage and simpler grounding |
Compared with SMBG8.0A-E3/52, the M3 variant adds halogen-free compliance without sacrificing surge capability; versus SMBG8.0CA-M3/52, the unidirectional version provides tighter leakage control and avoids unnecessary bidirectional conduction paths in DC-biased circuits.
Availability
SMBG8.0A-M3/52 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC power feeds requiring stable component supply, AEC-Q101 qualification, and halogen-free compliance.
Supply support for SMBG8.0A-M3/52 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-power, surface-mount transient suppression in space-constrained automotive and industrial systems - delivering robust 600 W clamping in a low-profile DO-215AA package with AEC-Q101 validation.
FAQ
What is the clamping voltage of SMBG8.0A-M3/52 and how is it measured?
The SMBG8.0A-M3/52 has a maximum clamping voltage (VC) of 13.6 V, measured at its rated peak pulse current (IPPM) of 44.1 A using a 10/1000 μs double-exponential waveform. This value reflects the actual voltage seen by protected circuitry during worst-case surge events and is guaranteed per Vishay's datasheet revision 09-Jan-2024, Document Number 88456. The SMBG8.0A-M3/52 achieves this clamping performance with low incremental resistance, minimizing overshoot.
Is SMBG8.0A-M3/52 qualified for automotive applications?
Yes, SMBG8.0A-M3/52 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock per the AEC standard. Its M3 suffix confirms halogen-free, RoHS-compliant construction, and its operating junction temperature range of –55 °C to +150 °C supports under-hood deployment. The SMBG8.0A-M3/52 is explicitly listed in Vishay's qualified parts list for automotive transient suppression.
How does the M3 suffix differ from E3 in SMBG8.0A-M3/52?
The M3 suffix indicates halogen-free, RoHS-compliant, industrial-grade construction meeting JESD201 Class 2 whisker resistance, whereas E3 denotes RoHS-compliant but non-halogen-free material. Both share identical electrical specifications and package dimensions, but SMBG8.0A-M3/52 satisfies stricter environmental mandates for automotive and green electronics programs. The SMBG8.0A-M3/52 also meets UL 94 V-0 flammability rating via halogen-free molding compound.
What is the thermal resistance of SMBG8.0A-M3/52 and how does it affect layout?
SMBG8.0A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's package drawing. To maintain TJ ≤ 150 °C during repetitive surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - undersized pads will cause premature thermal derating of SMBG8.0A-M3/52's 600 W rating.
Can SMBG8.0A-M3/52 be used in bidirectional signal protection?
No - SMBG8.0A-M3/52 is a unidirectional TVS diode, intended for DC-biased lines where the cathode connects to the protected line and anode to ground. For bidirectional signal protection (e.g., RS-485, USB, CAN), the bidirectional variant SMBG8.0CA-M3/52 should be used instead. Using SMBG8.0A-M3/52 on AC or floating signals risks forward conduction and improper clamping; its datasheet specifies polarity-dependent operation and marks the cathode with a band.
SMBG8.0A-M3/52 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 44.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG8.0A-M3/52 FAQ
1.How can I place an order for SMBG8.0A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0A-M3/52 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 SMBG8.0A-M3/52 reliable?
The price and inventory of SMBG8.0A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG8.0A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG8.0A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0A-M3/52?
SMBG8.0A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0A-M3/52 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 SMBG8.0A-M3/52?
For technical support, including SMBG8.0A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0A-M3/52 requirements.
6.How does Aetrix verify that SMBG8.0A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG8.0A-M3/52 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 SMBG8.0A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG8.0A-M3/52?
All SMBG8.0A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0A-M3/52, 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 SMBG8.0A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG8.0A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0A-M3/52 Tags
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