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Vishay General Semiconductor - Diodes Division SMCG16CAHE3/9AT
- Part No.:
- SMCG16CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG16CAHE3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,006
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Product details
Overview
SMCG16CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection on signal and power lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and clamps to ≤26.0 V at 57.7 A (10/1000 µs waveform), making it suitable for automotive sensor interface and industrial I/O line protection.
For engineers reviewing the SMCG16CAHE3/9AT datasheet, SMCG16CAHE3/9AT pinout, SMCG16CAHE3/9AT application, or SMCG16CAHE3/9AT equivalent, this AEC-Q101 qualified device offers verified bidirectional clamping, low incremental surge resistance, and RoHS-compliant matte tin terminations - critical for high-reliability ESD and load-dump transient suppression in harsh environments.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, with no polarity marking and identical electrical characteristics across reverse and forward quadrants. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the DO-215AB package supports automated SMT placement and meets UL 94 V-0 flammability rating.
The device is rated for TJ = –55 °C to +150 °C operation, has RθJA = 75 °C/W, and delivers 1500 W peak pulse power under standardized 10/1000 µs transients when mounted on 8.0 mm × 8.0 mm copper pads. It complies with ANSI/IEEE C62.35 and is Underwriters Laboratory recognized (QVGQ2, file E136766) for protector classification per UL 497B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 17.8 V / 19.7 V at IT = 1.0 mA - guaranteed breakdown threshold range for reliable turn-on margin |
| VC @ IPPM | 26.0 V at 57.7 A (10/1000 µs) - clamping voltage limiting downstream IC stress during surge events |
| PPPM | 1500 W - peak transient energy absorption capacity without failure |
| ID @ VWM | 1.0 µA - ultra-low leakage ensuring minimal standby power impact on sensitive analog/sensor circuits |
| TJ max | +150 °C - extended thermal capability supporting under-hood automotive and industrial ambient conditions |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with 0.310" × 0.400" footprint, UL 94 V-0 molding compound, matte tin-plated terminals solderable per J-STD-002/JESD 22-B102. Bidirectional configuration means no cathode/anode marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient input/output node | Either side of protected line - symmetrical connection enables flexible placement on differential or single-ended paths |
| Terminal 2 | Transient input/output node | Paired terminal completing bidirectional clamping path; no polarity dependency simplifies layout and BOM management |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules, ADAS sensors, and body controllers |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage across temperature and lifetime stress |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or special handling |
| 1500 W PPPM rating | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 4 surges in properly designed layouts |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector or PCB edge to shunt surge energy before reaching signal conditioning ICs. Use Value: Limits transient voltage to ≤26.0 V, preventing latch-up or damage to 3.3 V/5 V microcontrollers and ADC front-ends under ISO 7637-2 compliance testing. |
Use Scenario: Safeguarding RS-485, 4–20 mA loop, or digital input channels in PLCs and motor drives exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS deployed across differential pairs or between signal and ground to absorb repetitive EFT and lightning-induced spikes. Use Value: 1.0 µA leakage at 16 V VWM avoids loading precision current loops; 1500 W rating handles multi-kV 10/1000 µs transients without degradation. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
|
Use Scenario: Secondary-side DC bus protection in USB-C PD adapters and AC/DC converters against output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Fast-response clamp parallel to bulk capacitor to suppress overshoot during dynamic load changes or fault clearing. Use Value: Sub-1 ns response and 26.0 V clamping prevent overvoltage stress on synchronous rectifiers and secondary-side controllers during transient events. |
Use Scenario: Overvoltage hardening of Ethernet PHY interfaces, POTS line drivers, or DSL front-ends in network equipment. IC Role / Device Role / Timing Role: Bidirectional TVS bridging data pair or signal-to-ground to meet GR-1089-CORE and ITU-T K.20/K.21 immunity requirements. Use Value: Symmetrical clamping ensures equal protection on both conductors; AEC-Q101 qualification supports extended field life in telecom infrastructure deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA | Same VWM (16 V), lower PPPM (400 W), SMA (DO-214AC) package, higher RθJA (110 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump or industrial 4 kV IEC 61000-4-5 | Select when cost sensitivity outweighs surge margin and board space allows larger thermal pad area |
| SMCJ16CA | Same VWM (16 V), higher PPPM (1500 W), identical DO-215AB package, but not AEC-Q101 qualified | Acceptable for industrial/commercial use but lacks automotive qualification documentation and test reporting | Choose for non-automotive designs where full AEC-Q101 traceability is not required |
Compared with SMAJ16CA and SMCJ16CA, SMCG16CAHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W surge rating, and DO-215AB packaging - enabling drop-in deployment in automotive Tier-1 modules and industrial systems requiring certified reliability and high-energy clamping in compact footprints.
Availability
SMCG16CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and telecom line card designs requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for SMCG16CAHE3/9AT 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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade solutions.
The SMCG series was developed specifically for high-power, surface-mount transient suppression in space-constrained automotive and industrial applications - delivering AEC-Q101 qualification, bidirectional symmetry, and industry-leading 1500 W PPPM in the DO-215AB outline.
FAQ
What is the clamping voltage of SMCG16CAHE3/9AT at its rated peak pulse current?
The SMCG16CAHE3/9AT clamps to a maximum of 26.0 V at its specified peak pulse current of 57.7 A under the standard 10/1000 µs waveform. This value is measured with the device mounted on 0.31" × 0.31" copper pads per JEDEC guidelines and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is consistent across both polarities due to its bidirectional design.
Is SMCG16CAHE3/9AT suitable for automotive applications?
Yes, SMCG16CAHE3/9AT is AEC-Q101 qualified and explicitly intended for automotive use. It meets rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114. Its DO-215AB package, matte tin terminations, and UL 497B recognition (file E136766) support deployment in engine control units, ADAS sensors, and body electronics where reliability under thermal and electrical stress is mandatory.
How does the HE3 suffix in SMCG16CAHE3/9AT affect its specifications?
HE3 denotes RoHS-compliant, AEC-Q101 qualified construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. It does not alter electrical parameters - VWM, VBR, PPPM, and VC remain identical to non-HE3 variants - but confirms compliance with automotive reliability standards and lead-free assembly requirements. The "9AT" indicates 13" tape-and-reel packaging with 3500 units per reel.
What is the thermal resistance of SMCG16CAHE3/9AT, and how does it impact layout?
SMCG16CAHE3/9AT 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 JEDEC 51-7. This value assumes minimum recommended pad layout; reducing copper area increases RθJA and risks exceeding TJ max = +150 °C during repeated surges. Layout must maintain full pad dimensions and avoid thermal isolation to ensure sustained 1500 W pulse handling.
Does SMCG16CAHE3/9AT have polarity markings, and how is it connected in circuit?
No, SMCG16CAHE3/9AT has no polarity markings because it is a bidirectional TVS diode - both terminals are functionally identical and interchangeable. It is connected across the protected line and ground (or across differential signal pairs), with no cathode/anode orientation required. This simplifies PCB layout, eliminates risk of reverse installation, and supports symmetric protection of AC-coupled or floating interfaces.
SMCG16CAHE3/9AT 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 57.7A
- 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)
SMCG16CAHE3/9AT FAQ
1.How can I place an order for SMCG16CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG16CAHE3/9AT 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 SMCG16CAHE3/9AT reliable?
The price and inventory of SMCG16CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG16CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG16CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG16CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG16CAHE3/9AT?
SMCG16CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG16CAHE3/9AT 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 SMCG16CAHE3/9AT?
For technical support, including SMCG16CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG16CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG16CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG16CAHE3/9AT 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 SMCG16CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG16CAHE3/9AT?
All SMCG16CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG16CAHE3/9AT, 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 SMCG16CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG16CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG16CAHE3/9AT Tags
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