My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ7.0CAHE3_A/I
- Part No.:
- SMCJ7.0CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.0CAHE3_A/I.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,485
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ7.0CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features a 7.0 V stand-off voltage (VWM), 12.0 V maximum clamping voltage (VC) at 125 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMCJ7.0CAHE3_A/I datasheet, SMCJ7.0CAHE3_A/I pinout, SMCJ7.0CAHE3_A/I application, or SMCJ7.0CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low incremental surge resistance, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism. Its bidirectional symmetry enables suppression of both positive and negative transients without polarity sensitivity, and its glass-passivated junction ensures stable breakdown characteristics across temperature.
The SMCJ7.0CAHE3_A/I delivers 1500 W peak pulse power handling with a 10/1000 μs waveform, and exhibits a typical thermal resistance of 75 °C/W (junction-to-ambient) when mounted per recommended pad layout. It meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak.
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 10 mA test current - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | 12.0 V at 125 A - clamped voltage during worst-case 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient energy absorption capacity under standardized surge waveform |
| ID @ VWM | 200 μA - low leakage current at stand-off voltage, minimizing standby power loss |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint |
Pinout & Package
SMCJ7.0CAHE3_A/I uses the SMC (DO-214AB) package: a 2-terminal surface-mount device with no polarity marking for bidirectional operation. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No functional distinction between terminals; either terminal accepts positive or negative surge relative to the other |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low incremental surge resistance | Enables tighter clamping (VC = 12.0 V) and lower let-through energy during fast transients |
| Glass passivated junction | Improves long-term reliability and stability of breakdown voltage under thermal cycling |
| MSL Level 1 rating | Allows unlimited floor life and compatibility with standard Pb-free reflow profiles up to 260 °C peak |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤12.0 V during 125 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V sensor front-ends. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against ESD and inductive switching spikes from solenoids or relays. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input channels to shunt surge energy before reaching optocoupler or microcontroller GPIO. Use Value: Absorbs 1500 W peak power without degradation, maintaining system uptime in factory automation environments with frequent switching noise. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Protecting Ethernet PHYs and PoE injectors from lightning-induced surges on twisted-pair data lines. IC Role / Device Role / Timing Role: Bidirectional clamping element on each pair, coordinated with common-mode chokes and gas discharge tubes. Use Value: Fast response time (<1 ps) and symmetric clamping ensure balanced suppression without skewing differential signaling integrity. |
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB-C power adapter outputs exposed to hot-plug and cable capacitance discharge events. IC Role / Device Role / Timing Role: Final-stage TVS placed immediately before connector to prevent transient coupling into connected devices. Use Value: 7.0 V VWM allows clean regulation margin below 5 V nominal output while clamping to 12.0 V during 10/1000 μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC7.0 | Lower PPPM (600 W), same VWM (7.0 V), smaller SMA package | Not AEC-Q101 qualified; limited to consumer-grade power rails | Select when space-constrained layouts require smaller footprint and automotive qualification is unnecessary |
| SMCJ7.0CAHM3_A/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification | Same automotive and industrial use cases; differs only in material compliance | Select when halogen-free RoHS compliance is mandated by OEM environmental specifications |
Compared with SMCJ7.0CAHE3_A/I, SAC7.0 offers reduced surge capacity in a smaller package but lacks automotive qualification, while SMCJ7.0CAHM3_A/I provides identical performance with halogen-free construction - making the HE3 version optimal for cost-sensitive AEC-Q101 designs where halogen content is unrestricted.
Availability
SMCJ7.0CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter outputs requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ7.0CAHE3_A/I 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 and automotive-grade validation.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of SMCJ7.0CAHE3_A/I at its rated peak pulse current?
The SMCJ7.0CAHE3_A/I has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated 125 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry sees no more than 12.0 V during such transient events - critical for protecting 5 V logic interfaces. The SMCJ7.0CAHE3_A/I achieves this with low incremental surge resistance and a glass-passivated junction.
Is SMCJ7.0CAHE3_A/I qualified for automotive applications?
Yes, SMCJ7.0CAHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88394. This qualification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock - validating its use in engine control units, body electronics, and ADAS sensor modules. The SMCJ7.0CAHE3_A/I also meets MSL Level 1 and UL 94 V-0 flammability standards required for automotive PCB assemblies.
How does the bidirectional configuration of SMCJ7.0CAHE3_A/I affect its circuit placement?
The bidirectional configuration of SMCJ7.0CAHE3_A/I eliminates polarity concerns during PCB layout - it can be placed across any two nodes without regard to anode/cathode orientation. This simplifies routing on differential lines (e.g., CAN, RS-485) and reduces BOM complexity versus unidirectional alternatives. Unlike unidirectional TVS diodes, the SMCJ7.0CAHE3_A/I has no band marking and relies on symmetrical internal structure, enabling direct replacement in legacy bidirectional protection schemes.
What thermal derating applies to SMCJ7.0CAHE3_A/I above 25 °C ambient?
SMCJ7.0CAHE3_A/I must be derated linearly above TA = 25 °C per Figure 2 in datasheet 88394: peak pulse power decreases by approximately 0.8% per °C rise, reaching ~75% of 1500 W at 85 °C ambient. This derating stems from its RθJA of 75 °C/W and TJ max of +150 °C. For reliable operation in high-temperature enclosures, the SMCJ7.0CAHE3_A/I should be mounted on minimum 8.0 mm × 8.0 mm copper pads to maintain thermal performance within specification limits.
Does SMCJ7.0CAHE3_A/I meet RoHS and lead-free assembly requirements?
Yes, SMCJ7.0CAHE3_A/I is RoHS-compliant and rated for lead-free reflow with a maximum peak temperature of 260 °C per J-STD-020. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 2 whisker testing. The "HE3" suffix explicitly denotes RoHS-compliant, AEC-Q101-qualified construction - confirming full alignment with modern electronics manufacturing requirements for the SMCJ7.0CAHE3_A/I.
SMCJ7.0CAHE3_A/I 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ7.0CAHE3_A/I FAQ
1.How can I place an order for SMCJ7.0CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.0CAHE3_A/I 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 SMCJ7.0CAHE3_A/I reliable?
The price and inventory of SMCJ7.0CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ7.0CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ7.0CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.0CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.0CAHE3_A/I?
SMCJ7.0CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.0CAHE3_A/I 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 SMCJ7.0CAHE3_A/I?
For technical support, including SMCJ7.0CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.0CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ7.0CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ7.0CAHE3_A/I 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 SMCJ7.0CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ7.0CAHE3_A/I?
All SMCJ7.0CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.0CAHE3_A/I, 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 SMCJ7.0CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ7.0CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.0CAHE3_A/I 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 …
