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Vishay General Semiconductor - Diodes Division SMCG15CAHE3/9AT
- Part No.:
- SMCG15CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG15CAHE3/9AT.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,548
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Product details
Overview
SMCG15CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), and clamps to ≤24.4 V at 61.5 A (10/1000 µs waveform), making it suitable for automotive sensor line protection per AEC-Q101.
For engineers reviewing the SMCG15CAHE3/9AT datasheet, SMCG15CAHE3/9AT pinout, SMCG15CAHE3/9AT application, or SMCG15CAHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AB mechanical data, clamping performance under standardized surge waveforms, and real-world use cases in automotive and industrial signal-line protection.
Technical Context
The SMCG15CAHE3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while its low incremental surge resistance enables fast response to ESD and lightning-induced surges.
Designed for surface-mount automated placement, it meets J-STD-020 MSL Level 1 with 260 °C reflow peak, uses matte tin-plated leads compliant with JESD 22-B102, and achieves thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads - critical for sustained surge handling in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 16.7 V / 18.5 V at 1 mA - guaranteed avalanche initiation range for reliable turn-on margin |
| VC @ IPPM | 24.4 V at 61.5 A (10/1000 µs) - clamped voltage limiting downstream IC stress during surge events |
| PPPM | 1500 W - peak transient energy absorption capability under standardized surge waveform |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserving signal integrity in high-impedance sensor interfaces |
| TJ max | +150 °C - extended junction temperature rating enabling under-hood automotive deployment |
| AEC-Q101 | Qualified - validated reliability for automotive-grade applications including engine control and ADAS sensors |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with 0.220–0.245 inch body length, 0.115–0.125 inch width, and 0.024–0.040 inch lead thickness; RoHS-compliant, AEC-Q101 qualified, UL 94 V-0 molded compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry (reverse bias) | One terminal of symmetrical bidirectional structure; no polarity marking required |
| Cathode | Current exit (reverse bias) | Second terminal of symmetrical bidirectional structure; functionally identical to Anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| Low-profile DO-215AB package | Enables high-density layout in space-constrained modules such as automotive ECUs and sensor hubs |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns or baking requirements |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and whisker resistance per JESD 201 Class 2 |
| UL 94 V-0 molding compound | Meets flammability safety requirements for automotive and industrial end-equipment certifications |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping device placed directly at connector entry point to shunt transients before reaching ADC input or signal conditioning circuitry. Use Value: Limits voltage excursion to ≤24.4 V during 10/1000 µs surges up to 61.5 A, preventing latch-up or permanent damage to 3.3 V/5 V sensor interface ICs. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines against ESD (IEC 61000-4-2) and burst noise in factory automation controllers. IC Role / Device Role / Timing Role: Symmetric TVS pair (one per line) providing common-mode and differential-mode transient suppression without affecting 1 Mbps CAN signaling integrity. Use Value: Maintains <1.0 µA leakage at 15 V VWM to avoid bus loading, while clamping fast transients within nanoseconds to preserve signal edge fidelity. |
| Consumer USB Port Protection | Telecom DSL Line Interface |
Use Scenario: Shielding USB 2.0 D+/D− lines in set-top boxes and smart home gateways from human-body-model ESD events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to USB connector to divert ±8 kV contact discharge away from USB transceiver IC. Use Value: Delivers sub-25 V clamping at 61.5 A with minimal parasitic capacitance (typ. <100 pF at 0 V), avoiding signal degradation at 480 Mbps full-speed operation. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Primary surge suppression stage mounted at line entry, preceding transformer-coupled isolation and integrated line driver ICs. Use Value: Absorbs 1500 W peak pulse energy per IEC 61000-4-5 (10/1000 µs), enabling compliance with GR-1089-CORE and ITU-T K.20/21 immunity standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CA | Same VWM (15 V) and PPPM (1500 W), but SMA (DO-214AC) package - larger footprint, higher RθJA (110 °C/W) | Limited to non-AEC-Q101 industrial use; lacks automotive qualification and tighter VBR tolerance | Select when DO-215AB footprint is unavailable and AEC-Q101 is not required |
| 1.5KE15CA | Same VWM and bidirectional function, but axial-leaded DO-201AD package - unsuitable for SMT assembly and high-density routing | Used only in through-hole prototyping or legacy repair; incompatible with automated manufacturing | Select only for hand-soldered evaluation or replacement in existing through-hole designs |
Compared with SMAJ15CA and 1.5KE15CA, the SMCG15CAHE3/9AT offers AEC-Q101 qualification, lower thermal resistance (75 vs. 110 °C/W), and optimized gull-wing geometry for fine-pitch PCB routing - making it the preferred choice for new automotive and high-reliability industrial designs requiring automated assembly.
Availability
SMCG15CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interfaces, and telecom line surge suppression requiring stable component supply, AEC-Q101 compliance, and 13-inch tape-and-reel delivery.
Supply support for SMCG15CAHE3/9AT 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 part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom systems where AEC-Q101 qualification, low clamping voltage, and consistent surge handling are mandatory.
FAQ
What is the breakdown voltage range for SMCG15CAHE3/9AT?
The SMCG15CAHE3/9AT has a guaranteed breakdown voltage (VBR) range of 16.7 V to 18.5 V at 1 mA test current, measured in both directions due to its bidirectional construction. This tight VBR window ensures predictable clamping onset across production lots and temperature ranges, supporting robust design margins in automotive and industrial applications where precise overvoltage thresholds are critical.
Is SMCG15CAHE3/9AT suitable for automotive applications?
Yes, SMCG15CAHE3/9AT is AEC-Q101 qualified and manufactured with HE3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validation per automotive stress tests make it approved for use in engine control units, ADAS sensors, and infotainment interfaces requiring certified reliability.
What does the "CA" suffix mean in SMCG15CAHE3/9AT?
The "CA" suffix in SMCG15CAHE3/9AT denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions without polarity dependence. Unlike unidirectional variants (e.g., SMCG15A), the CA version has no cathode band marking and is electrically identical in either orientation, simplifying layout and reducing BOM complexity in differential or AC-coupled signal paths.
What is the maximum clamping voltage of SMCG15CAHE3/9AT under surge conditions?
The SMCG15CAHE3/9AT clamps to a maximum of 24.4 V when subjected to a 10/1000 µs surge waveform at 61.5 A (IPPM). This value represents the peak voltage seen by protected circuitry during worst-case transient events and is measured per ANSI/IEEE C62.35 standards - ensuring compatibility with 3.3 V and 5 V logic families and preventing destructive overvoltage at downstream IC inputs.
What packaging format does SMCG15CAHE3/9AT ship in?
SMCG15CAHE3/9AT ships in 13-inch diameter plastic tape-and-reel format with a base quantity of 3500 units per reel (package code 9AT). This format supports high-speed pick-and-place assembly and is compatible with standard SMT equipment, eliminating manual handling and ensuring consistent feeding in automated production lines for automotive and industrial electronics manufacturing.
SMCG15CAHE3/9AT 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 61.5A
- 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)
SMCG15CAHE3/9AT FAQ
1.How can I place an order for SMCG15CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG15CAHE3/9AT 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 SMCG15CAHE3/9AT reliable?
The price and inventory of SMCG15CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG15CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG15CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG15CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG15CAHE3/9AT?
SMCG15CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG15CAHE3/9AT 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 SMCG15CAHE3/9AT?
For technical support, including SMCG15CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG15CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG15CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG15CAHE3/9AT 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 SMCG15CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG15CAHE3/9AT?
All SMCG15CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG15CAHE3/9AT, 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 SMCG15CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG15CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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