My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG9.0A-M3/9AT
- Part No.:
- SMCG9.0A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0A-M3/9AT.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,857
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG9.0A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) in the SMCG (DO-215AB) package, featuring a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, and 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM). It delivers 1500 W peak pulse power (10/1000 µs waveform) and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive-grade reliability.
For engineers reviewing the SMCG9.0A-M3/9AT datasheet, SMCG9.0A-M3/9AT pinout, SMCG9.0A-M3/9AT application, or SMCG9.0A-M3/9AT equivalent, this device is selected for robust overvoltage protection of low-voltage DC rails-especially in automotive sensor interfaces, industrial I/O lines, and power supply input stages where fast response (<1 ns), low clamping ratio, and high surge current handling are critical.
Technical Context
The SMCG9.0A-M3/9AT operates as a silicon avalanche diode with glass-passivated junction, optimized for unidirectional clamping in DC circuits. Its 1500 W PPPM rating is validated under JEDEC-standard 10/1000 µs surge conditions on 8.0 mm × 8.0 mm copper pads, and thermal resistance is specified at RθJA = 75 °C/W and RθJL = 15 °C/W.
It exhibits 1.0 µA max reverse leakage at VWM (9.0 V), 15.4 V clamping at 97.4 A IPPM, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Polarity is marked by cathode band; no marking applies to bidirectional variants-this part is unidirectional only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V systems. |
| VBR min/max | 10.0 V / 11.1 V at 1.0 mA - Tight breakdown tolerance ensures predictable turn-on across temperature and production lot. |
| VC @ IPPM | 15.4 V at 97.4 A - Clamping voltage limits protected circuit stress during 1500 W transients; clamping ratio = 1.71. |
| PPPM | 1500 W (10/1000 µs) - Sustains high-energy surges common in automotive load-dump and inductive switching events. |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves battery life and signal integrity in always-on sensor nodes. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMCG (DO-215AB) - Low-profile, gull-wing SMD package compatible with automated placement and IPC Class 2 whisker testing. |
Pinout & Package
SMCG9.0A-M3/9AT uses the SMCG (DO-215AB) surface-mount package: 2-terminal, gull-wing leadform, 0.220–0.245 inch body length, 0.115–0.125 inch width, 0.024–0.040 inch height. Cathode is marked by a visible band on the case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during overvoltage events. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs from cathode to anode when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets global environmental compliance requirements without compromising surge performance or thermal stability. |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ≈ 1.45) and minimizes voltage overshoot during fast transients. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking-reduces manufacturing overhead. |
| Glass-passivated junction | Ensures long-term reliability and stable electrical parameters across temperature cycling and humidity exposure. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from ISO 7637-2 pulse 1/2a/5a transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor supply rail and ground, clamping negative-going spikes and positive load-dump surges. Use Value: Limits voltage excursion to ≤15.4 V during 97.4 A transients, preventing damage to 16 V-rated LDOs and ADC inputs while maintaining <1 µA leakage at 9 V nominal. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on the input terminal, mounted directly at connector entry point before optocoupler or Schmitt trigger. Use Value: Absorbs up to 1500 W of surge energy without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV) when used with series impedance. |
| USB Power Delivery Line Protection | DC-DC Converter Input Stage Clamp |
Use Scenario: Secondary protection on VBUS line of USB-C PD ports subjected to hot-plug transients and ESD coupling from adjacent data lanes. IC Role / Device Role / Timing Role: Fast-response clamping device downstream of primary ESD array, handling higher-energy events beyond ±15 kV HBM. Use Value: Responds in <1 ns and clamps to 15.4 V-well below typical 20 V PD controller absolute maximum ratings-while adding negligible capacitance (<100 pF). |
Use Scenario: Input rail protection for buck converters powering FPGAs or microcontrollers in industrial edge devices exposed to 48 V supply fluctuations. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed across converter input capacitor to limit voltage overshoot during upstream switch-mode transients. Use Value: Withstands 200 A IFSM (8.3 ms half-sine), ensuring survivability during repeated inrush or fault events without parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-M3/57T | Same VWM (9.0 V), but lower PPPM (400 W) and smaller SMA (DO-214AC) package; RθJA = 110 °C/W vs. 75 °C/W. | Lower surge capacity suits consumer-grade 5 V/12 V rails; not recommended for automotive load-dump or industrial 24 V+ systems. | Select SMAJ9.0A-M3/57T only if board space is constrained and surge energy remains below 400 W. |
| SMCJ9.0A-M3/9AT | Identical VWM (9.0 V), VBR (10.0–11.1 V), and VC (15.4 V), but rated for 3000 W PPPM and uses larger SMC (DO-214AB) package. | Higher power handling supports harsher environments (e.g., railway traction, heavy machinery); requires larger PCB footprint and thermal pad area. | Choose SMCJ9.0A-M3/9AT when system-level surge testing exceeds 1500 W or when extended lifetime under repetitive stress is required. |
Compared with SMAJ9.0A-M3/57T and SMCJ9.0A-M3/9AT, the SMCG9.0A-M3/9AT delivers optimal balance of compact DO-215AB form factor, 1500 W surge capability, and AEC-Q101 qualification-making it the preferred choice for space-constrained automotive and industrial modules needing certified reliability without over-engineering.
Availability
SMCG9.0A-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input stages, and USB-C PD power delivery systems requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMCG9.0A-M3/9AT 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 designs and manufactures discrete semiconductors-including diodes, rectifiers, and TVS devices-with emphasis on reliability, efficiency, and application-specific performance.
The SMCG series targets high-energy transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and precise clamping for next-generation electronic control units and ruggedized I/O systems.
FAQ
What is the clamping voltage of SMCG9.0A-M3/9AT at its rated peak pulse current?
The SMCG9.0A-M3/9AT has a maximum clamping voltage (VC) of 15.4 V at its rated peak pulse current (IPPM) of 97.4 A, measured under the standardized 10/1000 µs waveform. This value is guaranteed across temperature and production lots, and reflects the actual voltage seen by downstream circuitry during worst-case surge events. The SMCG9.0A-M3/9AT maintains this clamping performance while delivering 1500 W of peak pulse power dissipation.
Is SMCG9.0A-M3/9AT suitable for automotive applications?
Yes, the SMCG9.0A-M3/9AT is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its halogen-free (M3) construction, MSL Level 1 rating, and guaranteed operation from –55 °C to +150 °C make it suitable for under-hood and cabin-mounted systems. The SMCG9.0A-M3/9AT also meets UL 497B recognition for telecom and industrial protectors.
How does the SMCG9.0A-M3/9AT differ from the SMCG9.0CA variant?
The SMCG9.0A-M3/9AT is unidirectional, with polarity indicated by a cathode band and intended for DC rail protection where reverse voltage is blocked. In contrast, SMCG9.0CA is bidirectional, has no polarity marking, and clamps symmetrically for AC or dual-polarity signal lines. Their VBR, VWM, and VC values differ: SMCG9.0CA has VBR = 10.0–11.1 V (bidirectional), VWM = 9.0 V, and same VC = 15.4 V-but only at half the IPPM due to dual-path conduction. The SMCG9.0A-M3/9AT is not interchangeable with SMCG9.0CA without circuit redesign.
What is the thermal resistance of SMCG9.0A-M3/9AT, and how does it affect layout?
The SMCG9.0A-M3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W, measured on the recommended 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pad per terminal. To achieve rated power dissipation, PCB layout must replicate this pad area and ensure adequate copper pour and via stitching. Reducing pad size increases RθJA and forces derating of PPPM above 25 °C ambient-verified in Figure 2 of the SMCG9.0A-M3/9AT datasheet.
Does SMCG9.0A-M3/9AT require a heatsink for standard operation?
No, the SMCG9.0A-M3/9AT is designed for surface-mount operation without external heatsinking when used within its specified thermal limits. Its RθJA = 75 °C/W assumes the standard 8.0 mm × 8.0 mm copper pad layout; adding thermal vias or internal planes further improves heat spreading. At TA = 50 °C, its power dissipation rating remains 6.5 W-sufficient for intermittent surge duty. Continuous DC power dissipation is not applicable, as the SMCG9.0A-M3/9AT functions only during transient events.
SMCG9.0A-M3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 97.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG9.0A-M3/9AT FAQ
1.How can I place an order for SMCG9.0A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0A-M3/9AT 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 SMCG9.0A-M3/9AT reliable?
The price and inventory of SMCG9.0A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG9.0A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG9.0A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0A-M3/9AT?
SMCG9.0A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0A-M3/9AT 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 SMCG9.0A-M3/9AT?
For technical support, including SMCG9.0A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0A-M3/9AT requirements.
6.How does Aetrix verify that SMCG9.0A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG9.0A-M3/9AT 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 SMCG9.0A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG9.0A-M3/9AT?
All SMCG9.0A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0A-M3/9AT, 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 SMCG9.0A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG9.0A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0A-M3/9AT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
