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Vishay General Semiconductor - Diodes Division SMB8J6.0CHE3/5B
- Part No.:
- SMB8J6.0CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CHE3/5B.pdf
- Description:
- TVS DIODE 6VWM 11.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB8J6.0CHE3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) 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 SMB8J6.0CHE3/5B datasheet, SMB8J6.0CHE3/5B pinout, SMB8J6.0CHE3/5B application, or SMB8J6.0CHE3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant HE3 suffix, and compatibility with 0.2" × 0.2" copper pad layout per JEDEC standards.
Technical Context
This bi-directional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance. Its symmetrical breakdown behavior (VBR min/max = 6.67 V / 7.37 V at 10 mA) enables balanced overvoltage suppression across both polarities without polarity-sensitive placement.
Thermal performance is defined by RθJA = 72 °C/W and RθJL = 20 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets MSL Level 1 (260 °C peak reflow) and JESD201 Class 2 whisker resistance, confirming suitability for automated SMT assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - reverse stand-off voltage; defines maximum continuous operating voltage before leakage exceeds 1 μA |
| VBR (min/max) | 6.67 V / 7.37 V at IT = 10 mA - ensures reliable triggering within tight tolerance band for precise system-level surge thresholding |
| VC @ IPPM | 10.3 V at IPPM = 2000 A - clamping voltage under full-rated 10/1000 µs surge; limits downstream IC stress during transients |
| PPPM | 800 W - peak pulse power handling; supports robust protection against ISO 7637-2 Pulse 1/2/5a/b and IEC 61000-4-5 surges |
| TJ max. | +150 °C - maximum junction temperature; enables deployment in under-hood automotive environments and high-ambient industrial enclosures |
| Package | DO-214AA (SMB) - standardized surface-mount outline with 0.205"–0.220" body length; compatible with IPC-7351B footprint |
| Qualification | AEC-Q101 qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads; bi-directional devices have no polarity marking; cathode band omitted per specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional polarity - terminals interchangeable; clamps voltage excursions above ±10.3 V regardless of direction |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides thermal path to PCB copper pads (0.2" × 0.2" per terminal recommended) |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN, LIN, RS-485) without external polarity management |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, ADAS sensors, and body electronics modules |
| HE3 suffix | Indicates RoHS-compliant construction with JESD201 Class 2 whisker resistance - suitable for long-life industrial deployments |
| Low clamping ratio (VC/VWM) | 1.72 - achieves high protection margin (VWM × 1.72 < typical IC absolute max rating) while minimizing forward voltage drop impact |
| MSL Level 1 rating | Supports standard reflow profiles up to 260 °C peak without preconditioning - eliminates moisture sensitivity handling overhead |
Applications
| Automotive Sensor Interface | Industrial Analog Input Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply and signal lines of wheel speed, pressure, or temperature sensors exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed at connector entry point to shunt transients before reaching ASIC or microcontroller analog front-end. Use Value: Limits voltage excursion to ≤10.3 V during 2000 A surge, preserving sensor accuracy and preventing latch-up in downstream 5 V or 3.3 V logic. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in PLC I/O modules subjected to field wiring ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage protection element placed directly across input terminals, upstream of precision op-amp conditioning circuitry. Use Value: Maintains signal integrity by clamping transients within 1 ns while adding <1 pF junction capacitance - no bandwidth degradation in DC–10 kHz range. |
| USB Port ESD Protection | DC Power Rail Surge Suppression |
|
Use Scenario: Secondary-level ESD protection on USB 2.0 data lines (D+/D−) in automotive infotainment head units where primary protection resides at connector. IC Role / Device Role / Timing Role: Fast-response bi-directional clamp absorbing ±15 kV contact discharge per IEC 61000-4-2 without affecting signal rise/fall times. Use Value: Delivers sub-10.3 V clamping at 2000 A while maintaining differential impedance match - prevents data corruption during hot-plug events. |
Use Scenario: Protecting 5 V, 12 V, or 24 V DC power rails feeding motor drivers, solenoid controllers, or communication modules in factory automation equipment. IC Role / Device Role / Timing Role: Parallel-connected TVS suppressing load dump spikes (up to 60 V/100 ms) and relay coil flyback energy in power distribution networks. Use Value: Handles 800 W peak pulse power with 72 °C/W thermal resistance - sustains repeated surges without thermal runaway when mounted on 0.2" × 0.2" copper pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB8J6.0CA-E3/5B | Commercial-grade variant (E3 suffix); lacks AEC-Q101 qualification and JESD201 Class 2 whisker resistance | Suitable for non-automotive industrial or consumer applications where extended reliability testing is not required | Select when cost sensitivity outweighs automotive qualification needs and board-level reflow profile is standard. |
| SMAJ6.0AHE3 | DO-214AC (SMA) package; lower PPPM (400 W) and IPPM (64.5 A); unidirectional only | Limited to DC-biased lines requiring polarity-specific clamping; insufficient for AC or bidirectional signal protection | Choose only for space-constrained designs accepting reduced surge capacity and directional limitation. |
Compared with SMB8J6.0CHE3/5B, the E3-suffix alternative trades automotive qualification for lower cost, while SMAJ6.0AHE3 sacrifices surge rating and bidirectionality for smaller footprint - neither offers direct pin-compatible replacement, but both serve adjacent design constraints in cost, size, or qualification tier.
Availability
SMB8J6.0CHE3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O hardening, and DC power rail surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMB8J6.0CHE3/5B 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 high-reliability and automotive-grade solutions.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMB8J6.0CHE3/5B under maximum rated surge current?
The SMB8J6.0CHE3/5B exhibits a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current (IPPM) of 2000 A with a 10/1000 µs waveform. This value is measured at TA = 25 °C and confirms the device's ability to limit transient overvoltage to a safe level for downstream 5 V or 3.3 V ICs. The SMB8J6.0CHE3/5B maintains this clamping performance across its specified operating temperature range.
Is SMB8J6.0CHE3/5B suitable for automotive applications?
Yes, SMB8J6.0CHE3/5B is AEC-Q101 qualified and carries the HE3 suffix indicating RoHS compliance and JESD201 Class 2 whisker resistance - all verified per Vishay's qualification report for the SMB8J series. It is explicitly intended for automotive use cases including sensor interfaces, body control modules, and infotainment systems. The SMB8J6.0CHE3/5B meets MSL Level 1 and operates from –55 °C to +150 °C, fulfilling under-hood environmental requirements.
How does the bi-directional configuration of SMB8J6.0CHE3/5B affect PCB layout?
The SMB8J6.0CHE3/5B has no polarity marking and functions identically regardless of orientation, simplifying PCB layout and eliminating risk of reverse installation. Engineers may place it symmetrically across differential lines (e.g., CAN_H/CAN_L) or floating analog paths without concern for anode/cathode alignment. The SMB8J6.0CHE3/5B requires only standard DO-214AA (SMB) footprint with 0.2" × 0.2" copper pads per terminal - no special routing or keep-out zones needed.
What is the difference between SMB8J6.0CHE3/5B and SMB8J6.0CA-E3/5B?
SMB8J6.0CHE3/5B is AEC-Q101 qualified and meets JESD201 Class 2 whisker resistance, whereas SMB8J6.0CA-E3/5B is commercial-grade (E3 suffix) without automotive qualification. Both share identical electrical specs (VWM = 6.0 V, VC = 10.3 V, PPPM = 800 W), but the HE3 version undergoes extended reliability testing for automotive use. The SMB8J6.0CHE3/5B is preferred for safety-critical or long-lifecycle automotive deployments.
Does SMB8J6.0CHE3/5B require derating at elevated ambient temperatures?
Yes, SMB8J6.0CHE3/5B must be derated above TA = 25 °C per Figure 2 in Vishay document 88422: peak pulse power decreases linearly to ~50 % at TA = 125 °C. Derating is based on thermal resistance RθJA = 72 °C/W and junction temperature limit of +150 °C. For sustained high-temperature operation, ensure adequate copper area (0.2" × 0.2" minimum per pad) and consider parallel devices if full 800 W rating is required above 85 °C ambient. The SMB8J6.0CHE3/5B datasheet provides exact derating curves.
SMB8J6.0CHE3/5B 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:
- 11.4V
- Current - Peak Pulse (10/1000µs):
- 70.2A
- 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)
SMB8J6.0CHE3/5B FAQ
1.How can I place an order for SMB8J6.0CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CHE3/5B 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 SMB8J6.0CHE3/5B reliable?
The price and inventory of SMB8J6.0CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J6.0CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CHE3/5B?
SMB8J6.0CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CHE3/5B 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 SMB8J6.0CHE3/5B?
For technical support, including SMB8J6.0CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CHE3/5B requirements.
6.How does Aetrix verify that SMB8J6.0CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CHE3/5B 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 SMB8J6.0CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CHE3/5B?
All SMB8J6.0CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CHE3/5B, 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 SMB8J6.0CHE3/5B part is unused and in its original packaging.
Return procedure for SMB8J6.0CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CHE3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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