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Vishay General Semiconductor - Diodes Division SMCJ8.0CAHE3_A/H
- Part No.:
- SMCJ8.0CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8.0CAHE3_A/H.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,877
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Product details
Overview
SMCJ8.0CAHE3_A/H 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 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage at 110.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces, industrial I/O lines, and telecom power rails.
For engineers reviewing the SMCJ8.0CAHE3_A/H datasheet, SMCJ8.0CAHE3_A/H pinout, SMCJ8.0CAHE3_A/H application, or SMCJ8.0CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge handling, low thermal resistance (RθJL = 15 °C/W), and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protection element that remains non-conductive below its 8.0 V stand-off voltage (VWM) and rapidly transitions to low-impedance conduction when transient voltage exceeds its 8.89–9.83 V breakdown range (VBR at 1 mA). Its bidirectional symmetry enables suppression of both positive and negative polarity surges without polarity-sensitive layout constraints.
Engineered for high-reliability environments, SMCJ8.0CAHE3_A/H meets AEC-Q101 qualification, supports MSL level 1 per J-STD-020 (peak reflow 260 °C), and delivers stable performance across -55 °C to +150 °C junction temperature range - critical for under-hood automotive modules and industrial control units exposed to thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 8.89 V / 9.83 V at 1 mA - Confirmed breakdown threshold ensures predictable turn-on during transients |
| VC @ IPPM | 13.6 V at 110.3 A - Clamping voltage limits downstream IC stress during 10/1000 μs surge events |
| PPPM | 1500 W - Peak pulse power handling defines transient energy absorption capacity |
| TJ max | +150 °C - Enables operation in high-temperature automotive and industrial enclosures |
| RθJL | 15 °C/W - Low junction-to-lead thermal resistance supports sustained power dissipation without heatsinking |
| Package | SMC (DO-214AB) - Standardized surface-mount outline compatible with IPC-7351B land patterns |
Pinout & Package
SMCJ8.0CAHE3_A/H uses the SMC (DO-214AB) package: a 2-terminal, bidirectional device with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker test requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides symmetrical conduction path for both positive and negative voltage excursions |
| Cathode | Transient return path (bidirectional) | Functionally identical to anode; no polarity distinction in CA-series devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 1500 W peak pulse power | Withstands high-energy transients from load dump or inductive switching in 12 V/24 V systems |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without moisture-induced popcorn failure |
| Glass passivated junction | Ensures long-term stability of breakdown characteristics under thermal and electrical stress |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ESD and load-dump transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, responding within <1 ps to limit voltage excursion. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V microcontrollers and analog front-ends during ISO 7637-2 Pulse 1/2a/5a events. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff-mode protector absorbing repetitive 1500 W transients while maintaining signal integrity during normal operation. Use Value: Eliminates need for external series impedance or RC filtering, reducing BOM count and PCB area in DIN-rail mounted control modules. |
| Telecom Power Rail Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding 48 V DC power inputs in PoE-powered network switches and base station radios from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level surge suppressor located at board edge, clamping common-mode transients before they reach DC/DC converters. Use Value: Maintains system uptime by preventing catastrophic failure of isolated power supplies during Category A/B/C surge tests per IEC 61000-4-5. | Use Scenario: Suppressing commutation spikes generated by brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Fast-response shunt device across motor terminals, diverting inductive kickback energy away from MCU GPIOs and driver ICs. Use Value: Extends lifespan of H-bridge MOSFETs and eliminates false resets caused by radiated noise coupling into control logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC8.0CA | Lower PPPM (600 W), same VWM (8.0 V), smaller SMA package | Not rated for AEC-Q101; limited to commercial-grade consumer/industrial use | Select when space-constrained layouts prioritize footprint over surge margin |
| SMCJ8.0AHE3_A/H | Unidirectional version; cathode band marking; identical VWM/VC/PPPM specs | Requires polarity-aware placement; unsuitable for AC-coupled or differential signal lines | Choose only if circuit topology guarantees unidirectional transient polarity |
Compared with SAC8.0CA and SMCJ8.0AHE3_A/H, SMCJ8.0CAHE3_A/H uniquely combines AEC-Q101 qualification, 1500 W surge rating, and true bidirectional symmetry - making it the only option among the three suitable for automotive sensor nodes requiring zero-polarity dependency and full ISO 16750-2 compliance.
Availability
SMCJ8.0CAHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecommunications infrastructure requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for SMCJ8.0CAHE3_A/H 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, efficiency, and application-specific optimization.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness and repeatable clamping performance are mandatory.
FAQ
What does the "CA" suffix indicate in SMCJ8.0CAHE3_A/H?
The "CA" suffix in SMCJ8.0CAHE3_A/H denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity surges. Unlike unidirectional variants (e.g., SMCJ8.0AHE3_A/H), it has no cathode marking and functions identically in either direction - essential for protecting AC-coupled signals, differential buses, or circuits where voltage polarity cannot be guaranteed. This is confirmed in Vishay's datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is SMCJ8.0CAHE3_A/H qualified for automotive use?
Yes, SMCJ8.0CAHE3_A/H is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet under "MECHANICAL DATA" and "Notes" sections. The "HE3" suffix indicates RoHS-compliant and AEC-Q101 qualified construction, validated for temperature cycling, mechanical shock, and humidity testing required for automotive under-hood and chassis-mounted applications. This qualification is integral to the part number and verified per the ordering information table on page 3.
What is the maximum clamping voltage of SMCJ8.0CAHE3_A/H and how is it measured?
The maximum clamping voltage (VC) of SMCJ8.0CAHE3_A/H is 13.6 V, measured at 110.3 A peak pulse current using a 10/1000 μs double-exponential waveform - defined per ANSI/IEEE C62.35 and specified in the "ELECTRICAL CHARACTERISTICS" table. This value represents the upper limit of voltage seen by protected circuitry during worst-case surge conditions and is guaranteed across the full operating temperature range (-55 °C to +150 °C).
How does the SMC (DO-214AB) package affect thermal performance of SMCJ8.0CAHE3_A/H?
The SMC (DO-214AB) package of SMCJ8.0CAHE3_A/H delivers a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W, enabling efficient heat transfer to PCB copper pads without external heatsinks. When mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, it sustains its 1500 W peak pulse rating and maintains junction temperature within safe limits during repetitive surge events - a key advantage over smaller packages like SMA or SMB.
Can SMCJ8.0CAHE3_A/H replace SMCJ8.0AHE3_A/H in an existing design?
No, SMCJ8.0CAHE3_A/H cannot directly replace SMCJ8.0AHE3_A/H without layout review: the former is bidirectional with no polarity marking, while the latter is unidirectional with a cathode band. Swapping them risks incorrect orientation in unidirectional circuits and may compromise protection if reverse-biased transients occur. The datasheet confirms distinct polarity behavior - "for unidirectional types the band denotes cathode end, no marking on bidirectional types" - so replacement requires verification of signal topology and surge polarity assumptions.
SMCJ8.0CAHE3_A/H 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ8.0CAHE3_A/H FAQ
1.How can I place an order for SMCJ8.0CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8.0CAHE3_A/H 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 SMCJ8.0CAHE3_A/H reliable?
The price and inventory of SMCJ8.0CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ8.0CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ8.0CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8.0CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8.0CAHE3_A/H?
SMCJ8.0CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8.0CAHE3_A/H 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 SMCJ8.0CAHE3_A/H?
For technical support, including SMCJ8.0CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8.0CAHE3_A/H requirements.
6.How does Aetrix verify that SMCJ8.0CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ8.0CAHE3_A/H 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 SMCJ8.0CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ8.0CAHE3_A/H?
All SMCJ8.0CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8.0CAHE3_A/H, 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 SMCJ8.0CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMCJ8.0CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ8.0CAHE3_A/H Tags
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