My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ7.0CA-E3/57T
- Part No.:
- SMCJ7.0CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.0CA-E3/57T.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,418
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ7.0CA-E3/57T 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 a 7.0 V standoff voltage (VWM), 12.0 V maximum clamping voltage (VC) at 125 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMCJ7.0CA-E3/57T datasheet, SMCJ7.0CA-E3/57T pinout, SMCJ7.0CA-E3/57T application, or SMCJ7.0CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, AEC-Q101 qualification eligibility (via HE3 suffix variants), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ7.0CA-E3/57T operates as a silicon avalanche diode with symmetrical breakdown in both polarities, enabling protection of AC-coupled or floating signal paths without polarity sensitivity. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the low Rsurge supports effective energy diversion during ESD or inductive switching events.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, allowing reliable operation up to TJ = +150 °C when mounted per recommended pad layout. The device meets MSL level 1 per J-STD-020 and is rated for 200 A non-repetitive forward surge (unidirectional only - not applicable to this bidirectional variant).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.78 V / 8.60 V at IT = 10 mA - Confirmed breakdown threshold range for bidirectional conduction |
| VC | 12.0 V at IPPM = 125 A - Clamped voltage seen by protected circuit during 10/1000 μs transient |
| PPPM | 1500 W - Peak pulse power handling capacity under standardized surge waveform |
| IPPM | 125 A - Maximum non-repetitive surge current supported at VC = 12.0 V |
| TJ max | +150 °C - Maximum junction temperature for continuous operation and reliability validation |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint |
Pinout & Package
SMCJ7.0CA-E3/57T uses the SMC (DO-214AB) package: a low-profile, rectangular surface-mount case with two coplanar terminals. No polarity marking is present on bidirectional variants; both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction node | Either terminal serves as anode or cathode depending on transient polarity - no DC bias dependency |
| Case / Body | Non-connected mechanical structure | No internal connection to semiconductor die; provides mechanical support and thermal path via soldered pad area |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or floating nodes without external polarity management |
| 1500 W peak pulse power | Supports robust immunity against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges in automotive ECUs |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage stress on downstream components during transient events |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack or baking requirements |
| RoHS-compliant matte tin plating | Ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 2 |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and alternator ripple in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between signal line and ground, responding within <1 ns to transients exceeding VWM. Use Value: Limits induced voltage to ≤12.0 V during 125 A surges, preventing latch-up or gate oxide damage in connected ASICs. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors in PLC modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across sensor output and reference rail, conducting only during overvoltage events. Use Value: Maintains signal integrity below 12.0 V clamp level while adding <1 pF junction capacitance - negligible impact on 10 kHz sensor bandwidth. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines after primary polymer-based TVS in portable media devices. IC Role / Device Role / Timing Role: Fast-response silicon TVS providing sub-12 V clamping for ±15 kV contact discharge per IEC 61000-4-2. Use Value: Delivers 1500 W surge handling without degradation after multiple strikes, unlike multilayer varistors. | Use Scenario: Front-end surge suppression on ADSL/VDSL line cards subjected to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional TVS installed differentially across tip/ring pair to shunt mode-converted surges to ground. Use Value: Withstands repeated 10/1000 μs surges up to 125 A while maintaining VWM = 7.0 V for minimal insertion loss on 1 MHz–30 MHz DSL signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA-E3/52T | Lower PPPM = 600 W; SMB package (smaller thermal mass); VC = 12.0 V at 50 A | Reduced surge margin; suitable only for lower-energy threats (e.g., IEC 61000-4-2 ESD only) | Select when board space is constrained and peak threat energy is ≤600 W |
| 1.5KE7.0CA | Through-hole DO-201 package; same VWM/VC; PPPM = 1500 W; higher RθJA = 150 °C/W | Requires wave soldering or hand assembly; less compatible with high-speed SMT lines | Select for legacy through-hole designs or where manual repair access is prioritized over automation |
Compared with SMBJ7.0CA-E3/52T and 1.5KE7.0CA, the SMCJ7.0CA-E3/57T delivers identical clamping performance in a surface-mount package optimized for automated production, superior thermal dissipation (RθJA = 75 °C/W), and full compatibility with AEC-Q101-qualified automotive variants using HE3 suffixes.
Availability
SMCJ7.0CA-E3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, consumer USB port ESD protection, and telecom DSL line surge suppression requiring stable component supply and traceable sourcing.
Supply support for SMCJ7.0CA-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, automotive qualification, and high-volume manufacturability.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial controls, and telecommunications infrastructure.
FAQ
What is the standoff voltage rating of the SMCJ7.0CA-E3/57T?
The SMCJ7.0CA-E3/57T has a maximum reverse standoff voltage (VWM) of 7.0 V, meaning it remains non-conductive up to this DC or RMS voltage level. This value is confirmed in the Vishay datasheet Document Number 88394, Table "ELECTRICAL CHARACTERISTICS", row for SMCJ7.0CA. Exceeding 7.0 V triggers avalanche conduction, initiating clamping action to protect downstream circuitry.
Is the SMCJ7.0CA-E3/57T suitable for automotive applications?
Yes, the SMCJ7.0CA-E3/57T is RoHS-compliant and compatible with AEC-Q101-qualified variants (e.g., SMCJ7.0CAHE3_A/H). While the -E3/57T suffix itself denotes commercial-grade RoHS compliance, its construction - glass-passivated junction, MSL Level 1 rating, and -55 °C to +150 °C operating range - meets foundational requirements for automotive use. For certified deployment, specify the HE3 suffix version.
What is the clamping voltage of the SMCJ7.0CA-E3/57T under surge conditions?
The SMCJ7.0CA-E3/57T clamps to a maximum of 12.0 V when subjected to its rated peak pulse current of 125 A with a 10/1000 μs waveform. This VC value is measured per standard test conditions defined in ANSI/IEEE C62.35 and documented in the Vishay SMCJ5.0A–SMCJ188CA datasheet. It ensures protected circuits experience no more than 12.0 V overshoot during worst-case transients.
Does the SMCJ7.0CA-E3/57T have polarity markings?
No, the SMCJ7.0CA-E3/57T does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMCJ7.0A), which use a cathode band, the CA suffix indicates symmetrical avalanche behavior in both directions - making terminal identification irrelevant for functional operation. This simplifies layout and eliminates orientation errors during automated placement.
What package type does the SMCJ7.0CA-E3/57T use, and what are its thermal characteristics?
The SMCJ7.0CA-E3/57T uses the SMC (DO-214AB) surface-mount package, with dimensions 7.11 mm × 6.22 mm × 2.62 mm and recommended 8.0 mm × 8.0 mm copper pads per terminal. Its thermal resistance is RθJA = 75 °C/W (junction-to-ambient, mounted per spec) and RθJL = 15 °C/W (junction-to-lead), enabling reliable operation up to +150 °C junction temperature in thermally managed PCB layouts.
SMCJ7.0CA-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- 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)
SMCJ7.0CA-E3/57T FAQ
1.How can I place an order for SMCJ7.0CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.0CA-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 SMCJ7.0CA-E3/57T reliable?
The price and inventory of SMCJ7.0CA-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 SMCJ7.0CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ7.0CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.0CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.0CA-E3/57T?
SMCJ7.0CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.0CA-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 SMCJ7.0CA-E3/57T?
For technical support, including SMCJ7.0CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.0CA-E3/57T requirements.
6.How does Aetrix verify that SMCJ7.0CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ7.0CA-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 SMCJ7.0CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ7.0CA-E3/57T?
All SMCJ7.0CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.0CA-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 SMCJ7.0CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ7.0CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.0CA-E3/57T 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 …
