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Vishay General Semiconductor - Diodes Division SMCG9.0CAHE3/9AT
- Part No.:
- SMCG9.0CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0CAHE3/9AT.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,548
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Product details
Overview
SMCG9.0CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of sensitive electronics. It features a 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) under 10/1000 µs waveform - ideal for automotive sensor line protection against load dump and ESD.
For engineers reviewing the SMCG9.0CAHE3/9AT datasheet, SMCG9.0CAHE3/9AT pinout, SMCG9.0CAHE3/9AT application, or SMCG9.0CAHE3/9AT equivalent, this AEC-Q101 qualified device offers verified bidirectional clamping performance, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for high-reliability industrial and automotive PCB designs requiring stable transient suppression without polarity constraints.
Technical Context
The SMCG9.0CAHE3/9AT operates as a bidirectional avalanche diode with symmetrical breakdown characteristics in both polarities, enabling single-device protection of AC-coupled or differential signal lines. Its glass-passivated junction ensures stable VBR (10.0–11.1 V) and low leakage (<1.0 µA at VWM), while the DO-215AB package delivers thermal resistance of RθJA = 75 °C/W and RθJL = 15 °C/W.
It complies with ANSI/IEEE C62.35 surge standards and supports 8.3 ms half-sine surge immunity up to 200 A (unidirectional only; not applicable to bidirectional CA variant). The device is rated for TJ = –55 °C to +150 °C operation and meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected lines. |
| VBR min/max | 10.0 V / 11.1 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 15.4 V at 97.4 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels below typical 16–24 V logic rail tolerances. |
| PPPM | 1500 W - Peak transient energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| ID @ VWM | <1.0 µA - Reverse leakage at stand-off voltage; minimizes quiescent power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; supports under-hood automotive deployment and extended industrial thermal environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, HAST, and ESD testing per AEC specification. |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, surface-mount gull-wing package with 2 terminals, UL 94 V-0 molding compound, and matte tin-plated leads compliant with J-STD-002 solderability and JESD 22-B102 whisker testing (Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Non-polarized surge path | No marking on device; symmetric conduction in both directions - eliminates orientation concerns during automated placement and simplifies layout for differential or AC lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of balanced interfaces (e.g., CAN, RS-485, audio lines) without external polarity management or dual-diode arrangements. |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal cycling, humidity, and vibration stresses - required for Tier-1 ECUs and ADAS sensor modules. |
| 1500 W peak pulse power | Withstands repetitive ISO 7637-2 load-dump transients (up to 120 V, 100 ms) and lightning-induced surges when used with appropriate trace inductance and PCB copper area. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes voltage overshoot during fast transients - critical for protecting 12 V automotive microcontrollers and LIN transceivers with tight absolute maximum ratings. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements - reduces manufacturing overhead and yield risk. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting wheel speed, crankshaft, or oxygen sensor signal lines from inductive switching spikes and battery load dump events in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching analog front-end or signal conditioner ICs. Use Value: Prevents latch-up or permanent damage to precision op-amps and ADCs by limiting transient voltage to ≤15.4 V while maintaining <1 µA leakage at 9 V nominal supply. |
Use Scenario: Safeguarding CANH/CANL differential pair in factory automation gateways exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Symmetric transient suppressor mounted across differential bus lines to maintain common-mode integrity during EFT bursts and surge events. Use Value: Ensures CAN physical layer compliance under IEC 61000-4-4 (EFT) and -4-5 (surge) by clamping both polarities identically without adding DC offset or skew. |
| Consumer Audio Line Protection | Telecom DSL/ADSL Line Interface |
|
Use Scenario: Shielding headphone jack or speaker output traces in portable audio devices from human-body ESD (±8 kV contact discharge). IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to codec output pins to absorb sub-nanosecond ESD pulses before they propagate into amplifier stages. Use Value: Achieves <1 ns response time and <15.4 V clamping to prevent pop-noise artifacts and protect Class D amplifier inputs rated for ≤16 V absolute max. |
Use Scenario: Front-end surge suppression on ADSL line cards subjected to induced lightning surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary protection element between line transformer secondary and SLIC or data pump IC, configured in bidirectional mode for AC-coupled signals. Use Value: Handles 1500 W peak power per ITU-T K.20/K.21 test waveforms while maintaining low capacitance (<100 pF) to avoid signal attenuation above 1 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0AHE3/57T | Unidirectional; 9.0 V VWM, 14.4 V VC @ 77.4 A; SMA (DO-214AC) package; lower PPPM (400 W). | Requires polarity-aware layout; unsuitable for AC/differential lines without additional components. | Select when cost-sensitive, space-constrained, or unidirectional DC rails (e.g., 12 V power input) require simpler footprint and lower surge duty. |
| SMCJ9.0CAHE3/9AT | Bidirectional; same VWM/VC specs; SMC (DO-214AB) package; higher thermal mass but larger footprint (7.11 × 6.22 mm vs. 6.60 × 5.59 mm). | Offers better thermal derating at high ambient temperatures due to lower RθJA (~50 °C/W), but consumes ~30% more board area. | Prefer when sustained surge repetition or elevated ambient (>105 °C) demands superior heat dissipation, and PCB real estate permits larger outline. |
Compared with SMAJ9.0AHE3/57T and SMCJ9.0CAHE3/9AT, the SMCG9.0CAHE3/9AT delivers optimal balance of AEC-Q101 qualification, compact DO-215AB size, and full 1500 W surge capability - making it the preferred choice for new automotive and space-constrained industrial designs where bidirectional protection and reflow compatibility are mandatory.
Availability
SMCG9.0CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, and telecom line interface boards requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMCG9.0CAHE3/9AT 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, efficiency, and application-specific optimization.
The SMCG series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 validation, low-profile packaging, and symmetrical bidirectional clamping are essential design requirements.
FAQ
What is the breakdown voltage range for SMCG9.0CAHE3/9AT?
The SMCG9.0CAHE3/9AT has a guaranteed breakdown voltage (VBR) range of 10.0 V to 11.1 V at 1 mA test current, measured per ANSI/IEEE C62.35. This narrow spread ensures consistent clamping onset across production units and supports precise system-level surge margining in designs using the SMCG9.0CAHE3/9AT.
Is SMCG9.0CAHE3/9AT suitable for automotive applications?
Yes - the SMCG9.0CAHE3/9AT is AEC-Q101 qualified and manufactured with HE3 suffix indicating RoHS compliance and automotive-grade reliability. It meets requirements for under-hood and cabin ECUs, including thermal cycling, humidity testing, and surge immunity per ISO 7637-2, making it fully suitable for production automotive use.
Does SMCG9.0CAHE3/9AT have polarity markings?
No - the SMCG9.0CAHE3/9AT is a bidirectional device and carries no cathode band or polarity marking. Its symmetrical construction allows mounting in either orientation, eliminating placement errors and simplifying automated assembly for differential or AC-coupled signal paths protected by the SMCG9.0CAHE3/9AT.
What is the maximum clamping voltage of SMCG9.0CAHE3/9AT at rated surge current?
The SMCG9.0CAHE3/9AT clamps to a maximum of 15.4 V when subjected to its rated peak pulse current of 97.4 A (10/1000 µs waveform). This VC value is guaranteed across temperature and lifetime, ensuring predictable overvoltage limiting for downstream ICs in systems relying on the SMCG9.0CAHE3/9AT for primary surge defense.
What package does SMCG9.0CAHE3/9AT use, and what are its key mechanical attributes?
The SMCG9.0CAHE3/9AT uses the SMCG (DO-215AB) package: a low-profile gull-wing SMD outline measuring 6.60 mm × 5.59 mm × 2.41 mm, with UL 94 V-0 molding compound and matte tin-plated leads. It supports J-STD-020 MSL Level 1 and 260 °C peak reflow, confirming robust manufacturability for the SMCG9.0CAHE3/9AT in high-volume SMT lines.
SMCG9.0CAHE3/9AT 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG9.0CAHE3/9AT FAQ
1.How can I place an order for SMCG9.0CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0CAHE3/9AT 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 SMCG9.0CAHE3/9AT reliable?
The price and inventory of SMCG9.0CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG9.0CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG9.0CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0CAHE3/9AT?
SMCG9.0CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0CAHE3/9AT 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 SMCG9.0CAHE3/9AT?
For technical support, including SMCG9.0CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG9.0CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG9.0CAHE3/9AT 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 SMCG9.0CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG9.0CAHE3/9AT?
All SMCG9.0CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0CAHE3/9AT, 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 SMCG9.0CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG9.0CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0CAHE3/9AT Tags
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