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Vishay General Semiconductor - Diodes Division SMCG22CAHE3/9AT
- Part No.:
- SMCG22CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG22CAHE3/9AT.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,177
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Product details
Overview
SMCG22CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, featuring a 24.4 V to 26.9 V breakdown voltage (VBR), 22 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), <1.0 µA reverse leakage at VWM, and clamping voltage of 35.5 V at 42.3 A IPPM - deployed for automotive-grade ESD and surge protection on sensor signal lines and power rails.
For engineers reviewing the SMCG22CAHE3/9AT datasheet, SMCG22CAHE3/9AT pinout, SMCG22CAHE3/9AT application, or SMCG22CAHE3/9AT equivalent, this AEC-Q101 qualified device offers verified bidirectional clamping performance, RoHS-compliant matte tin terminations, and MSL Level 1 reflow compatibility up to 260 °C - critical for high-reliability automotive and industrial PCB designs requiring robust transient immunity without polarity constraints.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in either direction. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance, enabling consistent clamping under repetitive transients.
The device uses a planar silicon junction structure optimized for fast response (<1 ns), low capacitance (typ. 180 pF at 0 V, unidirectional reference), and thermal stability up to +150 °C junction temperature - validated per JESD22-B102 solderability and J-STD-020 MSL Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.4 V / 26.9 V - defines guaranteed avalanche conduction onset range; ensures reliable triggering above system operating voltage |
| VWM | 22 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA; sets safe operating margin for 24 V nominal systems |
| VC @ IPPM | 35.5 V - clamped voltage at 42.3 A peak pulse current; determines worst-case overvoltage seen by protected ICs |
| PPPM | 1500 W - peak pulse power handling (10/1000 µs waveform); supports IEC 61000-4-5 Level 4 surge immunity |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient on 8 mm × 8 mm copper pads; informs board-level thermal design requirements |
| AEC-Q101 | Qualified - certified for automotive electronic modules per stress test standard; required for engine control, ADAS, and body electronics |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with 0.220"–0.245" body length, 0.115"–0.125" width, and 0.024"–0.040" lead thickness; meets UL 94 V-0 flammability rating and JEDEC moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; terminals interchangeable - enables single-component protection of AC-coupled or differential signal paths without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including powertrain, chassis, and infotainment systems per stress test requirements |
| Glass-passivated junction | Ensures stable, repeatable avalanche behavior over lifetime and temperature; eliminates parameter drift from surface contamination |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without preconditioning - simplifies SMT line integration |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for sensitive 3.3 V/5 V logic interfaces |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and whisker resistance per JESD201 Class 2 - critical for long-life industrial deployments |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching ADC front-end or signal conditioner IC. Use Value: Maintains signal integrity under ±100 V/500 ms load dump events while preserving <1.0 µA leakage at 22 V rail - preventing offset errors in precision sensor measurements. | Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD (IEC 61000-4-2) and burst noise in factory automation gateways. IC Role / Device Role / Timing Role: Symmetric TVS pair (one per line) providing common-mode and differential-mode surge suppression without polarity dependency. Use Value: Clamps to ≤35.5 V within nanoseconds, limiting bus voltage excursion below CAN transceiver absolute maximum ratings (typically ±40 V) during 8 kV contact discharge. |
| Telecom Power Rail Protection | Consumer USB-C Port ESD |
Use Scenario: Shielding 24 V DC input rails of PoE-powered network switches from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge absorber mounted upstream of DC-DC converter input, sized to handle 1500 W IEC 61000-4-5 combination wave. Use Value: Absorbs full 10/1000 µs surge energy without degradation, maintaining VWM = 22 V to avoid false triggering during normal 24 V operation with ±10% tolerance. | Use Scenario: Protecting USB-C CC and VBUS pins in portable docking stations against human-body-model ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed adjacent to connector to minimize trace inductance and preserve signal integrity at 10 Gbps speeds. Use Value: Delivers sub-36 V clamping at 42.3 A with <180 pF junction capacitance - meeting USB-IF ESD immunity requirements without degrading high-speed signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA | Same VWM (22 V) and PPPM (400 W), but lower power rating and SMA package (DO-214AC) | Limited to lower-energy transients (IEC 61000-4-2 only); unsuitable for IEC 61000-4-5 Level 4 | Select when space-constrained layouts require smaller footprint and surge threat level is limited to ESD-only environments |
| SMCJ22CA | Identical VWM (22 V), VBR (24.4–26.9 V), and PPPM (1500 W), but in larger SMC (DO-214AB) package | Higher thermal mass supports longer-duration surges; requires larger PCB area and different pad layout | Choose when board-level thermal management favors higher RθJL (10 °C/W vs. 15 °C/W) and legacy SMC footprints are already established |
Compared with SMAJ22CA and SMCJ22CA, SMCG22CAHE3/9AT delivers equivalent 1500 W surge capability in a 30 % smaller footprint than SMCJ, while offering AEC-Q101 qualification and MSL Level 1 reflow support not found in SMAJ - making it optimal for next-generation automotive and space-sensitive industrial designs.
Availability
SMCG22CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, telecom power rail protection, and consumer USB-C port ESD requiring stable component supply across production lifecycles.
Supply support for SMCG22CAHE3/9AT 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMCG series is engineered specifically for high-power, bidirectional transient suppression in harsh environments - targeting AEC-Q101-compliant automotive subsystems and industrial equipment demanding robustness against ISO 7637-2 and IEC 61000-4-5 threats.
FAQ
What does the 'HE3' suffix indicate in SMCG22CAHE3/9AT?
The 'HE3' suffix denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads. It confirms compliance with automotive reliability standards, JESD201 Class 2 whisker resistance, and J-STD-002 solderability - distinguishing SMCG22CAHE3/9AT from industrial-grade 'E3' or halogen-free 'HM3' variants. This makes SMCG22CAHE3/9AT suitable for safety-critical automotive modules where qualification evidence is mandatory.
Is SMCG22CAHE3/9AT unidirectional or bidirectional?
SMCG22CAHE3/9AT is a bidirectional TVS diode, as confirmed by the 'CA' suffix per Vishay documentation. It provides symmetrical clamping in both polarities with identical VBR, VC, and IPPM values - eliminating the need for polarity-aware placement and enabling protection of AC signals, differential buses, or floating grounds. No cathode band marking is present on the SMCG22CAHE3/9AT package.
What is the maximum clamping voltage for SMCG22CAHE3/9AT at its rated peak pulse current?
The maximum clamping voltage (VC) for SMCG22CAHE3/9AT is 35.5 V at 42.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured across the device terminals during surge conduction and represents the highest voltage imposed on downstream circuitry - a key parameter for ensuring protected ICs remain within their absolute maximum ratings during transient events.
Does SMCG22CAHE3/9AT meet automotive qualification standards?
Yes, SMCG22CAHE3/9AT is explicitly AEC-Q101 qualified per Vishay's datasheet revision 09-Jan-2024. This certification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for automotive applications such as engine control units, ADAS sensors, and body electronics. The 'HE3' suffix directly references this qualification status.
What packaging format does SMCG22CAHE3/9AT ship in?
SMCG22CAHE3/9AT ships in 13-inch diameter plastic tape and reel format (package code '9AT') with a base quantity of 3500 units per reel. This format supports high-speed automated placement and is compatible with standard SMT pick-and-place equipment. The '9AT' designation is distinct from the 7-inch '57T' option and ensures consistent feeding performance in volume manufacturing environments.
SMCG22CAHE3/9AT 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 42.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG22CAHE3/9AT FAQ
1.How can I place an order for SMCG22CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG22CAHE3/9AT 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 SMCG22CAHE3/9AT reliable?
The price and inventory of SMCG22CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG22CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG22CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG22CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG22CAHE3/9AT?
SMCG22CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG22CAHE3/9AT 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 SMCG22CAHE3/9AT?
For technical support, including SMCG22CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG22CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG22CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG22CAHE3/9AT 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 SMCG22CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG22CAHE3/9AT?
All SMCG22CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG22CAHE3/9AT, 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 SMCG22CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG22CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG22CAHE3/9AT Tags
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