My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG6.5CAHE3/9AT
- Part No.:
- SMCG6.5CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG6.5CAHE3/9AT.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,374
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG6.5CAHE3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for clamping voltage transients on signal and power lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), 133.9 A peak pulse current (IPPM), and clamps to 11.2 V at IPPM - used in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SMCG6.5CAHE3/9AT datasheet, SMCG6.5CAHE3/9AT pinout, SMCG6.5CAHE3/9AT application, or SMCG6.5CAHE3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, DO-215AB thermal performance (RθJA = 75 °C/W), and RoHS-compliant HE3 suffix with automotive-grade reliability.
Technical Context
This device operates as a bidirectional avalanche diode, leveraging glass-passivated junction technology to deliver symmetrical clamping in both polarities. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced surges, and inductive switching transients.
Designed for surface-mount placement on PCBs with 8.0 mm × 8.0 mm copper pads per terminal, it meets MSL Level 1 (260 °C reflow) and supports operation from –55 °C to +150 °C junction temperature. The HE3 suffix confirms AEC-Q101 qualification and RoHS compliance without halogens.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.22 V / 7.98 V at IT = 10 mA - ensures reliable avalanche initiation across production lot |
| VC @ IPPM | 11.2 V - clamping voltage under 133.9 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power handling capability per standard waveform |
| ID @ VWM | 500 µA - low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - enables use in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - thermal resistance defines derating curve above TA = 25 °C |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile, gull-wing leaded case with matte tin-plated terminals solderable per J-STD-002. No polarity marking for bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides symmetrical conduction during positive or negative overvoltage events |
| Cathode | Transient return path (bidirectional) | Functions identically to anode; no functional distinction in CA-type devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control, ADAS sensors, and infotainment power rails |
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime, critical for field-reliability |
| MSL Level 1 (260 °C) | Supports standard lead-free reflow without popcorn or delamination risk |
| 1500 W 10/1000 µs rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-line) when properly mounted |
| RoHS-compliant HE3 suffix | Meets automotive and industrial environmental requirements without halogen content |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching ASIC or MCU input pins. Use Value: Clamps 133.9 A surges to ≤11.2 V while maintaining <500 µA leakage at 6.5 V - preserving signal fidelity and enabling AEC-Q101 system compliance. | Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Primary surge suppression device across input terminals, coordinated with series impedance for energy absorption. Use Value: 1500 W peak power rating and 75 °C/W thermal resistance allow sustained operation in enclosed cabinets up to +85 °C ambient. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Protecting Ethernet PHY or RS-485 transceivers from lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: First-stage TVS on differential pair, working with common-mode chokes to meet IEC 61000-4-5 requirements. Use Value: Symmetrical bidirectional clamping ensures equal protection on both signal lines without polarity concerns during surge polarity reversal. | Use Scenario: Input-stage transient suppression on AC-DC adapter primary-side rectifier outputs exposed to mains-borne surges. IC Role / Device Role / Timing Role: Parallel-connected clamping device across bulk capacitor to limit voltage overshoot during line switching events. Use Value: 11.2 V clamping voltage prevents overvoltage stress on downstream 12 V-rated electrolytic capacitors and controller ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5CA | Same VWM (6.5 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 110 °C/W | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when cost or board space constraints outweigh surge robustness requirements |
| SMCJ6.5CA | Same VWM (6.5 V), higher PPPM (1500 W), SMC (DO-214AB) package, RθJA = 50 °C/W | Better thermal performance but larger footprint; requires more PCB area | Select when thermal margin is critical and board layout allows larger SMC outline |
Compared with SMAJ6.5CA and SMCJ6.5CA, the SMCG6.5CAHE3/9AT delivers identical surge power rating to SMCJ6.5CA but in a smaller DO-215AB footprint, while offering superior thermal performance versus SMAJ6.5CA - making it optimal for space-constrained automotive and industrial designs requiring AEC-Q101 validation.
Availability
SMCG6.5CAHE3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter input stages requiring stable component supply and full traceability.
Supply support for SMCG6.5CAHE3/9AT 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 reliability and application-specific performance.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in automotive, industrial, and telecom systems where AEC-Q101 qualification and consistent clamping behavior are mandatory.
FAQ
What does the "CA" suffix indicate in SMCG6.5CAHE3/9AT?
The "CA" suffix denotes a bidirectional configuration - meaning the SMCG6.5CAHE3/9AT provides symmetrical clamping for both positive and negative voltage transients without polarity marking. This distinguishes it from unidirectional variants (e.g., SMCG6.5AHE3/9AT) and enables use in AC-coupled or differential signal paths where surge polarity is unpredictable.
Is SMCG6.5CAHE3/9AT suitable for automotive applications?
Yes, the SMCG6.5CAHE3/9AT is AEC-Q101 qualified and carries the HE3 suffix, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. Its –55 °C to +150 °C operating range, MSL Level 1 reflow compatibility, and validated surge performance meet stringent automotive reliability requirements.
What is the clamping voltage of SMCG6.5CAHE3/9AT at rated surge current?
The SMCG6.5CAHE3/9AT clamps to 11.2 V at its rated peak pulse current (IPPM) of 133.9 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream ICs when the device is mounted on 8.0 mm × 8.0 mm copper pads per terminal.
How does the SMCG (DO-215AB) package compare thermally to SMA or SMC packages?
The SMCG (DO-215AB) package offers RθJA = 75 °C/W - better than SMA (e.g., SMAJ6.5CA at 110 °C/W) but less efficient than SMC (e.g., SMCJ6.5CA at 50 °C/W). This makes the SMCG6.5CAHE3/9AT a balanced choice for moderate-power surge protection where board space is constrained but thermal margin exceeds SMA limitations.
What does the "HE3" suffix mean in SMCG6.5CAHE3/9AT?
The "HE3" suffix indicates RoHS-compliant, AEC-Q101-qualified construction with no halogen content. It replaces the older "E3" industrial-grade variant and certifies that the SMCG6.5CAHE3/9AT meets automotive reliability standards including extended temperature operation, mechanical robustness, and long-term stability under thermal cycling and humidity exposure.
SMCG6.5CAHE3/9AT 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 133.9A
- 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)
SMCG6.5CAHE3/9AT FAQ
1.How can I place an order for SMCG6.5CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG6.5CAHE3/9AT 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 SMCG6.5CAHE3/9AT reliable?
The price and inventory of SMCG6.5CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG6.5CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG6.5CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG6.5CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG6.5CAHE3/9AT?
SMCG6.5CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG6.5CAHE3/9AT 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 SMCG6.5CAHE3/9AT?
For technical support, including SMCG6.5CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG6.5CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG6.5CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG6.5CAHE3/9AT 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 SMCG6.5CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG6.5CAHE3/9AT?
All SMCG6.5CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG6.5CAHE3/9AT, 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 SMCG6.5CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG6.5CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG6.5CAHE3/9AT 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 …
