My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG9.0CAHE3/57T
- Part No.:
- SMCG9.0CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0CAHE3/57T.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,186
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG9.0CAHE3/57T 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 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 (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG9.0CAHE3/57T datasheet, SMCG9.0CAHE3/57T pinout, SMCG9.0CAHE3/57T application, or SMCG9.0CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, DO-215AB thermal performance (RθJA = 75 °C/W), and compliance with UL 497B for surge protector classification.
Technical Context
This device operates as a bidirectional avalanche diode, leveraging glass-passivated junction technology to deliver symmetrical breakdown behavior in both polarities. Its clamping action begins at 10.0 V minimum breakdown voltage (VBR) and stabilizes at ≤15.4 V under 97.4 A transient surge - critical for protecting downstream CMOS inputs and analog front-ends without forward conduction.
Designed for surface-mount automated placement, it meets J-STD-020 MSL Level 1 (260 °C peak reflow) and JESD201 Class 2 whisker resistance. The SMCG9.0CAHE3/57T is qualified to AEC-Q101, confirming suitability for automotive-grade transient suppression where reliability across -55 °C to +150 °C junction temperature is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 10.0 V / 11.1 V - symmetric breakdown threshold in both directions, ensuring balanced protection |
| VC @ IPPM | 15.4 V at 97.4 A - clamping voltage limits stress on protected ICs during 10/1000 µs transients |
| PPPM | 1500 W - peak surge power handling capability per IEEE C62.35 standard waveform |
| ID @ VWM | 10 µA - low leakage preserves signal integrity in high-impedance sensor lines |
| TJ max. | +150 °C - enables operation in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - thermal resistance defines derating above 25 °C ambient for sustained power dissipation |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, dual-leaded surface-mount case with matte tin-plated terminals, UL 94 V-0 molding compound, and 0.31" × 0.31" copper pad layout recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Acts as cathode during positive transients and anode during negative transients - no polarity marking required |
| Cathode | Transient current exit (bidirectional) | Functions identically to Anode due to symmetrical construction; terminals are interchangeable in circuit layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns |
| UL 497B recognition (QVGQ2) | Confirms compliance for use in telecom and industrial surge protection systems requiring safety certification |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching PHY layer. Use Value: Limits voltage excursion to ≤15.4 V during 100 A surges, preserving signal fidelity and preventing latch-up in 3.3 V/5 V microcontrollers. | Use Scenario: Safeguarding PLC digital input channels against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, coordinated with series impedance and filtering. Use Value: Withstands repeated 1500 W transients per IEC 61000-4-5, enabling >100,000 surge cycles without degradation. |
| Telecom Line Interface | Consumer Device USB/UART Protection |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from lightning-induced surges on outdoor data links. IC Role / Device Role / Timing Role: First-stage protection element upstream of GDT or polymer PTC, absorbing initial energy burst. Use Value: Fast response (<1 ns) and symmetrical clamping prevent differential-mode damage to full-duplex communication ICs. | Use Scenario: Adding ESD and surge resilience to USB 2.0 D+/D- lines and UART debug ports in smart home hubs and wearables. IC Role / Device Role / Timing Role: Secondary-level TVS after internal ESD diodes, handling system-level 8 kV contact discharge events. Use Value: Low 10 µA leakage at 9.0 V avoids loading high-impedance pull-up networks while maintaining USB signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/57T | Unidirectional; 9.0 V VWM, 14.4 V VC @ 75.4 A; SMA (DO-214AC) package | Lacks bidirectional symmetry; requires explicit polarity orientation in PCB layout | Select when unidirectional protection suffices and board space allows larger SMA footprint |
| SMCJ9.0CAHE3/57T | Bidirectional; same VWM/VC specs but higher 3000 W PPPM rating; SMC (DO-214AB) package | Higher surge capacity suits harsher environments (e.g., railway, heavy machinery) | Choose when legacy SMC footprint compatibility or 2× surge margin is required |
Compared with SMAJ9.0A-E3/57T and SMCJ9.0CAHE3/57T, the SMCG9.0CAHE3/57T delivers identical bidirectional clamping performance in a smaller DO-215AB outline - reducing PCB area by 35% versus SMC while maintaining AEC-Q101 qualification and UL recognition absent in the SMAJ variant.
Availability
SMCG9.0CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMCG9.0CAHE3/57T 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 designs discrete semiconductors for power management, signal integrity, and protection - emphasizing reliability, AEC-Q101 validation, and safety certifications.
The SMCG series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, with emphasis on bidirectional symmetry, low clamping voltage, and robust thermal performance in compact surface-mount packages.
FAQ
What does the "CA" suffix indicate in SMCG9.0CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration - meaning the SMCG9.0CAHE3/57T provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity. This eliminates the need for polarity-aware placement and simplifies design for AC-coupled or differential signal lines.
Is SMCG9.0CAHE3/57T suitable for automotive applications?
Yes, SMCG9.0CAHE3/57T is AEC-Q101 qualified and rated for operation from -55 °C to +150 °C, making it suitable for under-hood and cabin-mounted automotive electronics. Its UL 497B recognition and compliance with ISO 7637-2 pulse test profiles further validate its use in ECUs, ADAS sensors, and body control modules.
What is the mounting pad layout recommendation for SMCG9.0CAHE3/57T?
Vishay specifies a 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area for each terminal to achieve rated thermal performance and 1500 W PPPM. Deviating from this layout reduces surge capability and increases junction temperature - especially critical in high-temperature automotive or industrial environments.
How does SMCG9.0CAHE3/57T differ from unidirectional SMCG9.0AHE3/57T?
The SMCG9.0CAHE3/57T is bidirectional with symmetrical VBR (10.0–11.1 V) and clamping in both directions, while SMCG9.0AHE3/57T is unidirectional with cathode marking and forward conduction capability. The CA version has no polarity band and supports AC or floating-line protection without orientation constraints.
Does SMCG9.0CAHE3/57T require external series impedance for optimal protection?
Yes - like all TVS diodes, SMCG9.0CAHE3/57T should be used with series impedance (e.g., resistor, ferrite bead, or current-limiting trace) to limit peak current into the protected IC and avoid exceeding its safe operating area. The 15.4 V clamping voltage assumes proper layout and coordination with upstream filtering elements.
SMCG9.0CAHE3/57T 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)
SMCG9.0CAHE3/57T FAQ
1.How can I place an order for SMCG9.0CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0CAHE3/57T 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 SMCG9.0CAHE3/57T reliable?
The price and inventory of SMCG9.0CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG9.0CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG9.0CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0CAHE3/57T?
SMCG9.0CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0CAHE3/57T 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 SMCG9.0CAHE3/57T?
For technical support, including SMCG9.0CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0CAHE3/57T requirements.
6.How does Aetrix verify that SMCG9.0CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG9.0CAHE3/57T 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 SMCG9.0CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG9.0CAHE3/57T?
All SMCG9.0CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0CAHE3/57T, 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 SMCG9.0CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG9.0CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0CAHE3/57T 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 …
