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Vishay General Semiconductor - Diodes Division SMCJ8.0CA-E3/57T
- Part No.:
- SMCJ8.0CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8.0CA-E3/57T.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,966
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Product details
Overview
SMCJ8.0CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 110.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ8.0CA-E3/57T datasheet, SMCJ8.0CA-E3/57T pinout, SMCJ8.0CA-E3/57T application, or SMCJ8.0CA-E3/57T equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification eligibility, and compatibility with automated SMT assembly on 8 mm × 8 mm copper pads.
Technical Context
The SMCJ8.0CA-E3/57T operates as a silicon avalanche diode with symmetrical breakdown in both polarities, enabling protection against voltage transients induced by inductive load switching or ESD events without polarity sensitivity. Its glass-passivated junction ensures stable leakage and fast response time (<1 ns), while its low Rdyn supports effective energy diversion during 10/1000 μs surges.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, allowing reliable operation up to TJ = +150 °C. The device meets MSL level 1 per J-STD-020 and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR min/max | 8.89 V / 9.83 V at IT = 1.0 mA - Verified breakdown threshold range ensuring consistent turn-on behavior across production lots. |
| VC @ IPPM | 13.6 V at 110.3 A - Clamped voltage under full 1500 W surge; limits stress on downstream ICs like microcontrollers or CAN transceivers. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; suitable for IEC 61000-4-5 Level 4 surge immunity compliance. |
| ID @ VWM | 50 μA - Reverse leakage at rated stand-off voltage; low enough to avoid loading low-power sensor bias networks. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); mounting pad layout requires 8.0 mm × 8.0 mm copper area per terminal per Vishay spec.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode) | Bidirectional terminal | No polarity marking; either end functions identically as cathode/anode depending on transient polarity - enables universal placement on PCB without orientation check. |
| Anode (Cathode) | Bidirectional terminal | Electrically symmetric to first terminal; forms a single two-terminal device with identical VBR and VC in both directions. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR (8.89–9.83 V) and VC (13.6 V) in both directions - eliminates need for polarity-aware layout or discrete back-to-back diode solutions. |
| High surge capability | 1500 W PPPM with 10/1000 μs waveform - withstands repetitive lightning-induced surges in telecom line cards and industrial PLC I/O modules. |
| AEC-Q101 readiness | E3 suffix denotes RoHS-compliant commercial grade; HE3 variant available for automotive-qualified versions - supports migration path to automotive-grade designs. |
| Low thermal resistance | RθJL = 15 °C/W - enables efficient heat transfer to PCB copper, critical for sustained surge duty cycles in motor drive gate driver protection. |
Applications
| Automotive Body Control Module (BCM) | Industrial RS-485 Communication Port |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door actuator drivers from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp ±100 V transients before reaching MCU GPIO or transceiver inputs. Use Value: Maintains 8.0 V stand-off while clamping to ≤13.6 V, preserving signal integrity and preventing latch-up in 5 V logic interfaces. | Use Scenario: Safeguarding differential data lines in factory automation systems exposed to EFT and surge events per IEC 61000-4-4/5. IC Role / Device Role / Timing Role: Two-terminal shunt protector across A/B lines with no DC bias impact due to symmetric leakage <50 μA. Use Value: Enables robust 250 kbps RS-485 communication in noisy environments without adding series impedance or timing skew. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Input Stage |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to absorb 1500 W spikes generated during PWM commutation. Use Value: Prevents MOSFET drain-source breakdown by limiting transient voltage to 13.6 V while supporting 110 A peak surge current. | Use Scenario: Front-end overvoltage protection for AC/DC SMPS input rectifier stage subjected to utility surges. IC Role / Device Role / Timing Role: Primary-level clamping device placed after bridge rectifier but before bulk capacitor to limit peak rail voltage. Use Value: Withstands repeated 1500 W surges without degradation, extending capacitor lifetime and avoiding crowbar-triggered shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA-E3/52T | Lower PPPM (600 W), same VWM/VC, SMB package (smaller footprint, higher RθJA). | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy transients in space-constrained consumer ports. | Select when board area is constrained and surge threat level is ≤Level 2; verify thermal derating at 75 °C ambient. |
| SMCJ8.0A-E3/57T | Unidirectional version; same VWM/VC/PPPM but asymmetric conduction - requires correct polarity placement. | Applicable only where system ground reference is fixed and transient polarity is known (e.g., DC power input with defined +/−). | Choose only if polarity is guaranteed and layout allows cathode orientation control; avoids risk of reverse-bias failure in bidirectional scenarios. |
Compared with SMBJ8.0CA-E3/52T and SMCJ8.0A-E3/57T, the SMCJ8.0CA-E3/57T uniquely delivers bidirectional 1500 W surge immunity in an industry-standard SMC package - making it optimal for automotive and industrial interfaces where polarity-agnostic protection and high-energy handling are mandatory.
Availability
SMCJ8.0CA-E3/57T is available at Aetrix Electronics and suitable for automotive body control modules, industrial RS-485 nodes, appliance motor drives, and telecom power supply inputs requiring stable component supply and long-term design-in support.
Supply support for SMCJ8.0CA-E3/57T 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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and AEC-Q qualification.
The SMCJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against lightning, EFT, and load dump events is non-negotiable.
FAQ
What does the "CA" suffix indicate in SMCJ8.0CA-E3/57T?
The "CA" suffix denotes a bidirectional configuration: the SMCJ8.0CA-E3/57T provides symmetrical transient voltage suppression in both polarities, with identical breakdown (8.89–9.83 V) and clamping (13.6 V) characteristics regardless of voltage polarity. This eliminates orientation constraints during PCB placement and supports AC-coupled or floating signal line protection - unlike unidirectional variants such as SMCJ8.0A-E3/57T.
Is SMCJ8.0CA-E3/57T qualified for automotive applications?
The SMCJ8.0CA-E3/57T carries the E3 suffix, indicating RoHS-compliant commercial grade. While not AEC-Q101 qualified itself, Vishay offers the HE3 variant (e.g., SMCJ8.0CAHE3_A/H) with full AEC-Q101 qualification. Engineers designing for automotive use should specify the HE3 version of SMCJ8.0CA-E3/57T to meet vehicle-grade reliability requirements including temperature cycling, humidity testing, and surge endurance.
What is the maximum clamping voltage of SMCJ8.0CA-E3/57T under surge conditions?
The SMCJ8.0CA-E3/57T has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 110.3 A using the standard 10/1000 μs waveform. This value is measured across the device terminals during surge testing and represents the upper voltage limit imposed on protected circuitry - critical for ensuring compatibility with 5 V or 3.3 V logic interfaces downstream.
How does the SMCJ8.0CA-E3/57T compare to SMAJ8.0CA in terms of surge capability?
The SMCJ8.0CA-E3/57T delivers 1500 W peak pulse power (PPPM), whereas the SMAJ8.0CA is rated at 400 W. This three-fold increase stems from the larger SMC (DO-214AB) package's superior thermal mass and lower dynamic resistance, enabling the SMCJ8.0CA-E3/57T to handle higher-energy transients like IEC 61000-4-5 Level 4 surges - making it suitable for front-end protection in industrial and automotive systems where SMAJ8.0CA would thermally saturate.
What PCB layout guidance applies to SMCJ8.0CA-E3/57T for optimal thermal performance?
For optimal thermal performance, the SMCJ8.0CA-E3/57T must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in Vishay Document 88394. These pads provide necessary heat spreading to maintain junction temperature below +150 °C during surge events. Avoid narrow traces or thermal relief spokes between the device and copper; use solid internal ground/power planes connected via multiple vias to enhance heat dissipation - especially critical in high-duty-cycle motor drive or telecom power applications.
SMCJ8.0CA-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ8.0CA-E3/57T FAQ
1.How can I place an order for SMCJ8.0CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8.0CA-E3/57T 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 SMCJ8.0CA-E3/57T reliable?
The price and inventory of SMCJ8.0CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ8.0CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ8.0CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8.0CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8.0CA-E3/57T?
SMCJ8.0CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8.0CA-E3/57T 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 SMCJ8.0CA-E3/57T?
For technical support, including SMCJ8.0CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8.0CA-E3/57T requirements.
6.How does Aetrix verify that SMCJ8.0CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ8.0CA-E3/57T 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 SMCJ8.0CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ8.0CA-E3/57T?
All SMCJ8.0CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8.0CA-E3/57T, 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 SMCJ8.0CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ8.0CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ8.0CA-E3/57T Tags
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