My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC8.2CA-E3/9AT
- Part No.:
- 1.5SMC8.2CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2CA-E3/9AT.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,638
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC8.2CA-E3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features 8.2 V standoff voltage (VWM), 12.1 V maximum clamping voltage at 200 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the 1.5SMC8.2CA-E3/9AT datasheet, 1.5SMC8.2CA-E3/9AT pinout, 1.5SMC8.2CA-E3/9AT application, or 1.5SMC8.2CA-E3/9AT equivalent, key selection criteria include bidirectional clamping behavior, low clamping ratio (VC/VWM = 1.48), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) of 7.79–8.61 V at 10 mA test current and reverse leakage ≤200 μA at 7.02 V. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients like ESD or inductive switching spikes.
The device uses a glass-passivated silicon junction and achieves thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads), enabling reliable operation up to 150 °C junction temperature under repetitive 0.01% duty cycle pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.02 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 7.79–8.61 V at 10 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 12.1 V at 200 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; enables robust IC-level protection. |
| PPPM | 1500 W - Peak transient energy absorption capacity; supports lightning-induced surges per IEC 61000-4-5. |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint; meets UL 94 V-0 flammability. |
| Temperature Range | −65 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments without derating. |
| RoHS Status | E3 suffix - Fully RoHS-compliant, commercial-grade, matte tin-plated leads compliant with J-STD-002 solderability. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction - either terminal accepts positive or negative transient; clamps equally in both directions. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure when mounted on recommended 8 mm × 8 mm copper pads. |
| Low clamping ratio (VC/VWM = 1.48) | Minimizes stress on downstream components - critical for 5 V or 3.3 V logic interfaces exposed to fast-rising surges. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C - eliminates baking requirements for standard SMT assembly. |
| Glass-passivated junction | Ensures stable leakage performance and long-term reliability under humidity and thermal cycling stress. |
| Automated placement compatible | Low-profile SMC body and defined lead coplanarity enable >99.9% placement yield in high-speed pick-and-place systems. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V microcontrollers and ADC front-ends during ISO 16750-2 tests. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from solenoid coils or motor drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance and filtering capacitors. Use Value: Maintains functional safety integrity by limiting transient voltage to <12.1 V - well below 16 V absolute maximum rating of common optocouplers and level shifters. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHYs and PoE interface ICs from lightning-induced surges on RJ45 ports in outdoor access points and base stations. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection to handle residual fast-rising edges. Use Value: Achieves sub-100 ns response time and clamps differential-mode surges to <12.1 V, preserving signal integrity on 100BASE-TX lines. |
Use Scenario: Suppressing output voltage spikes caused by transformer leakage inductance and rectifier reverse recovery in AC/DC adapters. IC Role / Device Role / Timing Role: Final-stage clamp on regulated 5 V/12 V outputs to prevent overvoltage damage to connected USB peripherals or displays. Use Value: Limits transient overshoot to ≤12.1 V even during 1500 W surge events, meeting UL 62368-1 secondary circuit safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Lower PPPM (600 W), same VWM (6.4 V), higher VC (12.5 V at 48.2 A), SMB package (smaller thermal mass). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 3. | Select when board space is constrained and surge threat level is limited to ESD or low-energy switching noise. |
| 1.5KE8.2CA | Through-hole DO-15 package, identical VWM/VC specs, but slower thermal response and incompatible with SMT automation. | Requires manual or wave-solder assembly; not viable for high-volume automated production. | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency. |
Compared with 1.5SMC8.2CA-E3/9AT, SMBJ8.0CA offers smaller footprint but sacrifices 60% peak power handling, while 1.5KE8.2CA retains electrical equivalence but eliminates SMT scalability - making 1.5SMC8.2CA-E3/9AT optimal for volume automotive and industrial PCBs requiring automated assembly and robust surge immunity.
Availability
1.5SMC8.2CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC8.2CA-E3/9AT 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 1.5SMC Series targets high-power transient suppression in space-constrained SMT applications, engineered specifically for automotive, industrial, and telecom systems demanding AEC-Q101 readiness and repeatable clamping behavior under harsh environmental stress.
FAQ
What is the clamping voltage of the 1.5SMC8.2CA-E3/9AT under a 10/1000 μs surge?
The 1.5SMC8.2CA-E3/9AT clamps to a maximum of 12.1 V when subjected to a 200 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions with the device mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, ensuring realistic thermal dissipation during surge events. The 1.5SMC8.2CA-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC8.2CA-E3/9AT suitable for automotive applications?
Yes - the 1.5SMC8.2CA-E3/9AT is RoHS-compliant and qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes. While the E3/9AT variant is commercial-grade, its construction (glass-passivated junction, MSL Level 1, −65 °C to +150 °C operation) and electrical specs (1500 W PPPM, low clamping ratio) align with automotive subsystem requirements such as body control modules and sensor interfaces. For certified automotive use, specify 1.5SMC8.2CAHE3_A/I.
How does the bidirectional design of the 1.5SMC8.2CA-E3/9AT affect circuit protection?
The bidirectional configuration of the 1.5SMC8.2CA-E3/9AT allows it to suppress voltage transients of either polarity without requiring orientation during placement - ideal for AC-coupled lines, differential buses (e.g., RS-485), or ungrounded signal paths. Unlike unidirectional TVS diodes, the 1.5SMC8.2CA-E3/9AT provides symmetrical clamping above ±7.02 V, eliminating risk of incorrect installation and simplifying layout for dual-polarity surge threats.
What is the thermal resistance of the 1.5SMC8.2CA-E3/9AT, and how does it impact power handling?
The 1.5SMC8.2CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads resistance (RθJL) of 15 °C/W. These values mean that under continuous DC conditions, the device can dissipate up to 6.5 W on an infinite heatsink at 50 °C ambient. In transient operation, the low RθJL enables rapid heat transfer into PCB copper, sustaining 1500 W peak pulses without thermal runaway - provided minimum pad layout guidelines are followed.
Does the 1.5SMC8.2CA-E3/9AT require special PCB layout considerations?
Yes - optimal performance requires mounting the 1.5SMC8.2CA-E3/9AT on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Smaller pads increase thermal impedance and reduce peak pulse power capability. Additionally, minimize trace inductance between the 1.5SMC8.2CA-E3/9AT and protected node - place it as close as possible to the connector or IC input, with short, wide traces to preserve clamping speed and effectiveness.
1.5SMC8.2CA-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC8.2CA-E3/9AT FAQ
1.How can I place an order for 1.5SMC8.2CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2CA-E3/9AT 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 1.5SMC8.2CA-E3/9AT reliable?
The price and inventory of 1.5SMC8.2CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2CA-E3/9AT?
1.5SMC8.2CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2CA-E3/9AT 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 1.5SMC8.2CA-E3/9AT?
For technical support, including 1.5SMC8.2CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2CA-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC8.2CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2CA-E3/9AT 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 1.5SMC8.2CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2CA-E3/9AT?
All 1.5SMC8.2CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2CA-E3/9AT, 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 1.5SMC8.2CA-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC8.2CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2CA-E3/9AT 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
