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Vishay General Semiconductor - Diodes Division SMB8J6.0CAHE3_A/H
- Part No.:
- SMB8J6.0CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CAHE3_A/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,199
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Product details
Overview
SMB8J6.0CAHE3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features 6.0 V stand-off voltage (VWM), 10.3 V maximum clamping voltage (VC) at 2000 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J6.0CAHE3_A/H datasheet, SMB8J6.0CAHE3_A/H pinout, SMB8J6.0CAHE3_A/H application, or SMB8J6.0CAHE3_A/H equivalent, key selection criteria include AEC-Q101 qualification, bidirectional polarity, low clamping ratio (VC/VWM = 1.72), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its bidirectional architecture enables symmetric clamping for AC-coupled or floating signal lines without polarity sensitivity.
Designed per ANSI/IEEE C62.35 standards, it delivers stable clamping under repetitive transients up to TJ = 150 °C and meets MSL Level 1 (260 °C reflow). The device operates across -55 °C to +150 °C and exhibits ≤1.0 µA reverse leakage at VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VC @ IPPM | 10.3 V at 2000 A - clamping voltage limits downstream IC stress during 10/1000 µs surge |
| PPPM | 800 W - peak power handling capability under standardized lightning-surge waveform |
| VBR min/max | 6.67 V / 7.37 V at 10 mA - ensures reliable breakdown onset within tight tolerance band |
| ID @ VWM | ≤1.0 µA - negligible leakage current preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - supports under-hood automotive environments and industrial enclosures |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with IPC-7351B standard pad layout |
Pinout & Package
SMB8J6.0CAHE3_A/H is housed in an SMB (DO-214AA) plastic package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no cathode marking; terminals are symmetrical and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles - bidirectional clamping requires no orientation during placement |
| Case (body) | Thermal and mechanical interface | Plastic body transfers heat to PCB copper pads; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| MSL Level 1 | Supports single-reflow assembly at 260 °C peak without moisture-induced damage |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| Low clamping ratio (VC/VWM) | 1.72 - minimizes overvoltage exposure to protected ICs compared to higher-ratio alternatives |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets fire-safety requirements for industrial and transportation systems |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary surge shunt placed directly at connector entry point to divert >2000 A transients before reaching MCU or signal conditioner. Use Value: Clamps to 10.3 V while maintaining ≤1.0 µA leakage - prevents false triggering of 5 V logic and preserves ADC reference accuracy. | Use Scenario: Safeguarding RS-485/RS-232 communication ports and PLC digital inputs against ESD and inductive switching surges. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential pairs or ungrounded signal lines where polarity reversal may occur. Use Value: Symmetric 6.67–7.37 V breakdown enables robust protection without external polarity management circuitry. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side DC input protection in wall adapters exposed to mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed after rectifier but before primary regulator to absorb 800 W transients. Use Value: 800 W PPPM rating sustains repeated 10/1000 µs surges without degradation - extends adapter field life beyond IEC 61000-4-5 Level 3. | Use Scenario: Overvoltage protection on POTS line interfaces and DSL front-end circuits subject to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Bidirectional shunt on tip/ring pair to clamp common-mode transients while preserving low-capacitance signal path. Use Value: 72 °C/W RθJA enables thermal stability on telecom PCBs with limited copper area - avoids derating below 80% of rated PPPM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB8J6.0CA-E3/52 | Same electrical specs and SMB package; RoHS-compliant commercial grade (non-AEC-Q101) | Lacks automotive qualification - unsuitable for under-hood or safety-critical ECUs | Select when cost-sensitive industrial or consumer designs do not require AEC-Q101 validation |
| SMAJ6.0CAHE3_A/H | Same VWM/VC/IPPM but in smaller SMA (DO-214AC) package; 500 W PPPM rating | Lower power handling limits use to <500 W surge environments; reduced thermal mass affects repetitive surge endurance | Choose for space-constrained layouts where 500 W peak power suffices and board area is premium |
Compared with SMB8J6.0CAHE3_A/H, the E3/52 variant offers identical protection performance without automotive qualification, while the SMAJ6.0CAHE3_A/H trades 300 W peak power and larger thermal footprint for 30% smaller PCB area - critical for portable telecom modules.
Availability
SMB8J6.0CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, consumer power adapter inputs, and telecom line interfaces requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB8J6.0CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMB8J6.0CAHE3_A/H belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in harsh electromagnetic environments.
FAQ
What is the clamping voltage of SMB8J6.0CAHE3_A/H at its rated peak pulse current?
The SMB8J6.0CAHE3_A/H has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated 2000 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected downstream circuitry such as microcontrollers or transceivers. The SMB8J6.0CAHE3_A/H maintains this clamping performance across its full operating temperature range.
Is SMB8J6.0CAHE3_A/H suitable for automotive applications?
Yes, SMB8J6.0CAHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix and "_A/H" revision code. It meets stringent requirements for temperature cycling, humidity resistance, and surge endurance in engine control units, body electronics, and ADAS sensor modules. The SMB8J6.0CAHE3_A/H is rated for operation from -55 °C to +150 °C and passes MSL Level 1 reflow profiling.
Does SMB8J6.0CAHE3_A/H have polarity markings on the package?
No, SMB8J6.0CAHE3_A/H is a bidirectional TVS diode and carries no polarity marking - the SMB package lacks a cathode band. Its symmetrical construction allows unrestricted orientation during automated placement. This eliminates risk of misorientation errors in high-volume SMT assembly and simplifies layout for differential or floating signal lines.
What is the reverse leakage current specification for SMB8J6.0CAHE3_A/H at its stand-off voltage?
At its 6.0 V stand-off voltage (VWM), the SMB8J6.0CAHE3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at TA = 25 °C. This low leakage preserves signal integrity in high-impedance sensor interfaces and ensures minimal power loss in battery-operated systems. The SMB8J6.0CAHE3_A/H maintains leakage below 5.0 µA even at elevated temperatures up to 85 °C.
How does the thermal resistance of SMB8J6.0CAHE3_A/H affect its surge handling capability?
The SMB8J6.0CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" copper pads. This value directly determines its ability to dissipate energy between surges: lower RθJA enables faster cooldown and higher repetitive surge tolerance. For designs expecting frequent transients, optimizing PCB copper area per Vishay's recommended pad layout is essential to maintain the SMB8J6.0CAHE3_A/H within its 150 °C junction limit.
SMB8J6.0CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 77.7A
- Power - Peak Pulse:
- 800W
- 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-214AA (SMB)
SMB8J6.0CAHE3_A/H FAQ
1.How can I place an order for SMB8J6.0CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/H reliable?
The price and inventory of SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CAHE3_A/H?
SMB8J6.0CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/H?
For technical support, including SMB8J6.0CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CAHE3_A/H requirements.
6.How does Aetrix verify that SMB8J6.0CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CAHE3_A/H?
All SMB8J6.0CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMB8J6.0CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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