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Vishay General Semiconductor - Diodes Division SMB8J6.0CAHE3_A/I
- Part No.:
- SMB8J6.0CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CAHE3_A/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,542
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Product details
Overview
SMB8J6.0CAHE3_A/I 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 a 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 10.3 V 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/I datasheet, SMB8J6.0CAHE3_A/I pinout, SMB8J6.0CAHE3_A/I application, or SMB8J6.0CAHE3_A/I equivalent, key selection criteria include AEC-Q101 qualification, bidirectional clamping behavior, low clamping ratio (VC/VWM ≈ 1.72), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector, responding within <1 ps to transients exceeding its VWM. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 6.0 V), while the bidirectional symmetry enables protection of AC-coupled or differential lines without polarity concerns.
The SMB8J6.0CAHE3_A/I is rated for TJ = –55 °C to +150 °C, meets MSL Level 1 (260 °C reflow), and delivers 800 W peak pulse power under standardized 10/1000 µs surge conditions - validated per ANSI/IEEE C62.35 with derating above 25 °C ambient per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping initiates; defines safe signal swing margin for protected line. |
| VBR min/max | 6.67 V / 7.37 V at IT = 10 mA - tight breakdown tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 10.3 V at IPPM = 2000 A - clamping voltage limits downstream IC stress during 800 W transient events. |
| PPPM | 800 W (10/1000 µs) - energy-handling capacity suitable for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| ID @ VWM | <1.0 µA - ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max | +150 °C - supports under-hood automotive deployment and industrial environments with minimal thermal derating. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TC, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles; bidirectional clamping allows connection across any two-point node without orientation check. |
| Case (exposed cathode pad not present) | Thermal and mechanical interface | Plastic-molded body with matte tin-plated leads; requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated PPPM performance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC, differential, or floating signal lines without external polarity management. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, high-temperature operating life, and ESD robustness. |
| Glass-passivated junction | Ensures long-term parameter stability and resistance to humidity-induced degradation in harsh environments. |
| MSL Level 1 rating | Supports standard lead-free reflow (peak 260 °C) without preconditioning or dry-pack requirements. |
| Low clamping ratio (VC/VWM) | 1.72 - minimizes overvoltage exposure to downstream ICs compared to higher-ratio TVS devices. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point, clamping surges before reaching ASIC input pins. Use Value: Prevents latch-up or gate oxide damage in 5 V-tolerant sensor front-ends while maintaining signal fidelity below 6.0 V. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils, solenoids, and motor drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, coordinated with upstream fuse and series impedance. Use Value: Withstands repeated 800 W transients without parameter shift, enabling >100,000 surge cycles per IEC 61000-4-5 compliance testing. |
| USB Port ESD Protection | RS-485 Transceiver Protection |
Use Scenario: Secondary-level surge suppression on USB 2.0 VBUS and D+/D− lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Back-to-back TVS pair (implemented via single SMB8J6.0CAHE3_A/I) limiting common-mode and differential transients. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) and 1 kV lightning surges (IEC 61000-4-5) to sub-11 V levels, preserving USB PHY integrity. |
Use Scenario: Bus-side protection for RS-485 transceivers in factory automation networks exposed to ground potential differences and cable coupling. IC Role / Device Role / Timing Role: Bidirectional clamp between A/B differential lines and ground, absorbing common-mode surges up to ±1 kV. Use Value: Maintains signal eye diagram integrity by limiting clamping overshoot to ≤10.3 V while surviving 2000 A surge peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CAHE3_A/I | Lower PPPM (600 W vs. 800 W); same VWM, VBR, VC, and package. | Not recommended for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 3+ systems requiring ≥800 W margin. | Select only when system-level surge testing confirms 600 W sufficiency and cost optimization is prioritized. |
| SMCJ6.0CAHE3_A/I | Same electrical specs but larger SMC (DO-214AB) package; RθJA = 30 °C/W vs. 72 °C/W. | Requires larger PCB area and different pad layout; better thermal handling for sustained surge duty cycles. | Choose when thermal management dominates layout constraints or multi-pulse event endurance is critical. |
Compared with SMBJ6.0CAHE3_A/I, the SMB8J6.0CAHE3_A/I delivers +33 % peak power headroom for equivalent footprint; versus SMCJ6.0CAHE3_A/I, it trades thermal margin for space savings - making it optimal for compact AEC-Q101-compliant designs where 800 W single-pulse capability is mandatory.
Availability
SMB8J6.0CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, and RS-485 transceiver safeguarding requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB8J6.0CAHE3_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 qualification.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in space-constrained automotive and industrial control systems.
FAQ
What is the peak pulse power rating of SMB8J6.0CAHE3_A/I and under what test condition?
The SMB8J6.0CAHE3_A/I has a peak pulse power rating of 800 W, measured using the standardized 10/1000 µs double-exponential current waveform per ANSI/IEEE C62.35. This rating applies at TA = 25 °C with devices mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, and must be derated linearly above that ambient temperature per Figure 2 in the datasheet.
Is SMB8J6.0CAHE3_A/I unidirectional or bidirectional, and how does that affect circuit placement?
The SMB8J6.0CAHE3_A/I is a bidirectional TVS diode, meaning it clamps voltage surges of either polarity symmetrically. Unlike unidirectional types, it carries no cathode band marking and may be installed in either orientation across a protected node - simplifying layout and eliminating polarity verification during automated assembly.
Does SMB8J6.0CAHE3_A/I meet automotive qualification standards?
Yes, SMB8J6.0CAHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's 88422 datasheet. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and ESD per AEC-Q101 Rev G, making it suitable for under-hood and chassis-mounted automotive applications.
What is the clamping voltage of SMB8J6.0CAHE3_A/I at its maximum rated surge current?
The SMB8J6.0CAHE3_A/I clamps to a maximum of 10.3 V when subjected to its peak pulse current of 2000 A (10/1000 µs waveform). This VC value is guaranteed across production lots and temperature range, providing consistent overvoltage protection for downstream 5 V or 3.3 V logic interfaces.
How does the SMB8J6.0CAHE3_A/I differ from the SMBJ6.0CAHE3_A/I in practical design use?
The SMB8J6.0CAHE3_A/I offers 800 W peak pulse power versus 600 W for SMBJ6.0CAHE3_A/I - a +33 % surge energy margin - while retaining identical VWM (6.0 V), VBR (6.67–7.37 V), VC (10.3 V), and SMB package footprint. Designers select SMB8J6.0CAHE3_A/I when system-level surge testing demands higher single-pulse robustness without board redesign.
SMB8J6.0CAHE3_A/I 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/I FAQ
1.How can I place an order for SMB8J6.0CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/I reliable?
The price and inventory of SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CAHE3_A/I?
SMB8J6.0CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/I?
For technical support, including SMB8J6.0CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CAHE3_A/I requirements.
6.How does Aetrix verify that SMB8J6.0CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CAHE3_A/I?
All SMB8J6.0CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CAHE3_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 SMB8J6.0CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMB8J6.0CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CAHE3_A/I Tags
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