My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG90CA-M3/9AT
- Part No.:
- SMCG90CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90CA-M3/9AT.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,938
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG90CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for high-energy surge protection with 1500 W peak pulse power (10/1000 µs), 146 V clamping voltage at 10.3 A peak pulse current, and 90 V standoff voltage. It is AEC-Q101 qualified and halogen-free, targeting automotive power line and sensor interface protection.
For engineers reviewing the SMCG90CA-M3/9AT datasheet, SMCG90CA-M3/9AT pinout, SMCG90CA-M3/9AT application, or SMCG90CA-M3/9AT equivalent, this device delivers verified bidirectional clamping performance, MSL Level 1 reflow compatibility, and validated thermal resistance (RθJA = 75 °C/W) on standard 8.0 mm × 8.0 mm copper pads - critical for robust ESD and lightning surge design in automotive ECUs and industrial I/O modules.
Technical Context
The SMCG90CA-M3/9AT operates as a bidirectional avalanche diode, exhibiting symmetrical breakdown behavior in both polarities with VBR min/max of 100 V / 111 V at 1 mA test current. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling effective suppression of EFT and ISO 7637-2 transients.
Thermally, it supports continuous operation up to TJ = 150 °C and features RθJL = 15 °C/W for efficient lead-to-board heat transfer. The DO-215AB package provides low-profile mounting (max height 0.058") and meets UL 94 V-0 flammability, making it suitable for space-constrained automotive PCB layouts requiring high-reliability transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for 12 V/24 V automotive supply rails. |
| VBR (min/max) | 100 V / 111 V at 1 mA - Confirmed bidirectional breakdown threshold; ensures symmetric overvoltage triggering across polarity. |
| VC @ IPPM | 146 V at 10.3 A - Clamping voltage under 10/1000 µs surge; limits downstream IC stress to ≤146 V during 1.5 kW transient events. |
| PPPM | 1500 W - Peak pulse power rating per JEDEC-standard waveform; validates capability against ISO 16750-2 Pulse 5a/b surges. |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage at rated standoff; prevents signal integrity degradation in high-impedance sensor interfaces. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive environments without derating. |
| MSL Level | Level 1 (per J-STD-020) - Supports standard 260 °C peak reflow profile without preconditioning; simplifies SMT manufacturing. |
Pinout & Package
Package: SMCG (DO-215AB) - Low-profile, dual-leaded surface-mount case with matte tin-plated terminals, UL 94 V-0 molding compound, and no polarity marking (bidirectional configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive half-cycle) | Accepts surge current during positive voltage excursions; connects to protected line (e.g., CAN_H or LIN bus). |
| Cathode | Transient current entry point (negative half-cycle) | Accepts surge current during negative voltage excursions; ties to same protected line, forming symmetrical clamp path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets automotive environmental standards (e.g., ELV, IMDS) and JESD201 Class 2 whisker resistance - ensures long-term solder joint integrity. |
| Glass-passivated junction | Provides stable VBR tolerance and low leakage over lifetime, critical for maintaining protection margin in safety-critical systems. |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 46 V) versus competing TVS devices, reducing voltage overshoot on sensitive microcontrollers and transceivers. |
| 1500 W peak pulse power | Withstands repeated ISO 7637-2 Load Dump and Pulse 5a surges without degradation - eliminates need for external series impedance in many 24 V systems. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients (ISO 16750-2 Pulse 5a) and alternator switching spikes. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between power rail and ground, absorbing >100 A surge currents within nanoseconds. Use Value: Limits rail voltage to ≤146 V during 1500 W surges, preventing damage to MCU power supplies and CAN transceivers without derating. |
Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bidirectional clamp on differential signal lines, shunting EFT bursts before reaching ADC front-end. Use Value: Maintains signal fidelity with <1.0 µA leakage at 90 V, while clamping ±1 kV ESD events to safe levels for 16-bit precision measurement circuits. |
| Automotive CAN/LIN Bus Protection | Telecom DC Power Feed Protection |
|
Use Scenario: Shielding high-speed CAN FD or LIN physical layer transceivers from coupled surges on vehicle harnesses. IC Role / Device Role / Timing Role: Low-inductance DO-215AB package mounted directly at connector entry point, providing sub-1 ns response to fast-rising transients. Use Value: Clamps common-mode surges to ≤146 V while preserving signal edge integrity - validated for >100,000 mating cycles in automotive connectors. |
Use Scenario: Hardening -48 V telecom power feeds against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream MOVs to handle multi-kA surge currents per IEC 61000-4-5. Use Value: Delivers 1500 W pulse handling at 90 V standoff - enables compact, single-stage protection architecture without parallel device stacking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90CA-E3/57T | Same VWM/VC, but SMA (DO-214AC) package; RθJA = 85 °C/W vs. 75 °C/W; lower PPPM (400 W). | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for ISO 16750-2 Pulse 5a. | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin on small pads. |
| SMCJ90CAHM3/9AT | Same DO-215AB package and AEC-Q101 qualification; higher PPPM (3000 W); VC = 146 V @ 20.6 A. | Supports higher-energy threats (e.g., ISO 7637-2 Pulse 1/2b) but requires larger layout area for thermal dissipation. | Choose for next-generation ADAS domain controllers needing dual-pulse survivability; confirm PCB copper area ≥100 mm² per pad. |
Compared with SMAJ90CA-E3/57T and SMCJ90CAHM3/9AT, the SMCG90CA-M3/9AT uniquely balances 1500 W surge capacity, AEC-Q101 compliance, and minimal footprint - making it optimal for cost-sensitive automotive body control modules where 1.5 kW protection suffices without over-engineering.
Availability
SMCG90CA-M3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface hardening, and telecom DC feed protection requiring stable component supply and full traceability.
Supply support for SMCG90CA-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 is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The SMCG series was engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing low-profile packaging, repeatable clamping, and extended thermal endurance.
FAQ
What is the clamping voltage of the SMCG90CA-M3/9AT at its rated peak pulse current?
The SMCG90CA-M3/9AT has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions on 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCG90CA-M3/9AT maintains this clamping performance bidirectionally, ensuring consistent protection regardless of transient polarity.
Is the SMCG90CA-M3/9AT suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the SMCG90CA-M3/9AT is explicitly AEC-Q101 qualified, as confirmed in Vishay's official documentation (Document Number: 88457, Revision: 09-Jan-2024). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification. The "HM3" variant is also AEC-Q101 qualified, but the SMCG90CA-M3/9AT carries the industrial-grade M3 suffix with halogen-free compliance - meeting Tier 1 automotive supplier requirements for body electronics and infotainment power rails.
How does the SMCG90CA-M3/9AT differ from unidirectional variants like SMCG90A-M3/9AT?
The SMCG90CA-M3/9AT is bidirectional, meaning it clamps voltage transients of either polarity symmetrically, with identical VBR (100–111 V) and VC (146 V) in both directions. In contrast, SMCG90A-M3/9AT is unidirectional and features a cathode band marking; it conducts only during reverse-biased surges and has different leakage and forward voltage characteristics. The SMCG90CA-M3/9AT is selected for AC-coupled or differential bus protection (e.g., CAN, LIN), whereas SMCG90A-M3/9AT suits DC power rail protection with defined polarity.
What is the thermal resistance of the SMCG90CA-M3/9AT, and how does it affect PCB layout?
The SMCG90CA-M3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the datasheet. This value assumes standard FR-4 PCB construction with no internal planes. To maintain TJ ≤150 °C under sustained 6.5 W dissipation, designers must allocate sufficient copper area and consider thermal vias. The SMCG90CA-M3/9AT's RθJL of 15 °C/W further emphasizes the importance of low-impedance thermal paths to the PCB ground plane.
Does the SMCG90CA-M3/9AT require special handling during reflow soldering?
No special handling is required: the SMCG90CA-M3/9AT is rated MSL Level 1 per J-STD-020 and supports standard lead-free reflow profiles with a maximum peak temperature of 260 °C. Its DO-215AB package and matte tin-plated leads comply with J-STD-002 and JESD22-B102 for solderability. Unlike moisture-sensitive components, the SMCG90CA-M3/9AT may be stored and processed directly from dry pack without baking - streamlining SMT line integration for high-volume automotive production.
SMCG90CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCG90CA-M3/9AT FAQ
1.How can I place an order for SMCG90CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90CA-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 SMCG90CA-M3/9AT reliable?
The price and inventory of SMCG90CA-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 SMCG90CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG90CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90CA-M3/9AT?
SMCG90CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90CA-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 SMCG90CA-M3/9AT?
For technical support, including SMCG90CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90CA-M3/9AT requirements.
6.How does Aetrix verify that SMCG90CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG90CA-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 SMCG90CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG90CA-M3/9AT?
All SMCG90CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90CA-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 SMCG90CA-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG90CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG90CA-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 …
