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Vishay General Semiconductor - Diodes Division SMB8J6.0CHE3/52
- Part No.:
- SMB8J6.0CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CHE3/52.pdf
- Description:
- TVS DIODE 6VWM 11.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB8J6.0CHE3/52 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. It is AEC-Q101 qualified and used in automotive sensor interface protection.
For engineers reviewing the SMB8J6.0CHE3/52 datasheet, SMB8J6.0CHE3/52 pinout, SMB8J6.0CHE3/52 application, or SMB8J6.0CHE3/52 equivalent, key selection criteria include bi-directional clamping capability, low clamping ratio (VC/VWM = 1.72), AEC-Q101 qualification, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, enabling robust protection against voltage transients induced by ESD, inductive switching, and lightning surges without polarity dependency. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM).
Thermal performance is defined by RθJA = 72 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = 150 °C. The device meets MSL Level 1 per J-STD-020 and withstands peak reflow temperatures of 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR min/max | 6.67 V / 7.37 V at 10 mA - Verified breakdown range ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM | 10.3 V at 2000 A - Clamping voltage under full-rated surge; limits downstream IC stress to safe levels. |
| PPPM | 800 W (10/1000 µs) - Peak surge energy handling capacity; supports IEC 61000-4-5 Level 4 compliance when properly mounted. |
| ID @ VWM | <1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max | 150 °C - Junction temperature limit enabling use in under-hood automotive environments. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with cathode band marking; compatible with IPC-7351B footprint. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, 0.220" × 0.155" body, cathode band on one end. Complies with UL 94 V-0 flammability rating and J-STD-002 solderability standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No polarity dependence - either terminal serves as anode or cathode depending on transient polarity; no dedicated pin assignment required. |
| Cathode Band End | Reference marking only | Marking present but functionally irrelevant for bi-directional operation; used solely for visual orientation during manual inspection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Low clamping ratio (VC/VWM) | 1.72 - Minimizes overvoltage exposure to protected ICs compared to alternatives with ratios >2.0. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH - eliminates bake requirements prior to reflow assembly. |
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift in harsh environments. |
| Matte tin plating | Meets JESD 22-B102 solderability and JESD 201 Class 2 whisker resistance - supports lead-free reflow without intermetallic degradation. |
Applications
| Automotive Sensor Interface | Industrial CAN Bus Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and outputs from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt surge energy before reaching PHY layer. Use Value: Maintains signal integrity under 10/1000 µs surges up to 2000 A while holding clamped voltage below 10.3 V - within absolute maximum ratings of common transceivers like TCAN1042. |
Use Scenario: Safeguarding RS-485/CAN FD physical layer nodes in factory automation systems exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Primary surge suppression device on differential bus lines, positioned before common-mode chokes and termination resistors. Use Value: Delivers 800 W peak power dissipation with <1.0 µA leakage at 6.0 V - prevents false triggering during idle bus states while surviving repetitive 1 kV/500 A transients. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in set-top boxes and smart displays subjected to IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Fast-response shunt device placed after series impedance (e.g., ferrite bead) to clamp sub-1 ns ESD events. Use Value: Achieves <1 ns response time and 10.3 V clamping - keeps transient voltage below USB PHY damage threshold (typically 12 V) without adding capacitance that degrades signal rise time. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers against lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: First-stage voltage limiter on tip/ring lines, coordinated with gas discharge tube (GDT) upstream for multi-stage protection. Use Value: Handles 800 W surges with 6.0 V stand-off - enables clean separation between GDT follow-on current handling and fast semiconductor clamping, reducing let-through energy to <10 mJ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CA | Same VWM (6.0 V) and VC (10.3 V), but rated for 1000 W PPPM (vs. 800 W) and 1000 A IPPM (vs. 2000 A); uni-directional variant available. | Lower peak power rating makes it less suitable for high-energy automotive load dump; better for cost-sensitive consumer applications with lower surge threat levels. | Select SMBJ6.0CA only if system-level surge testing confirms ≤1000 W requirement and AEC-Q101 is not mandated. |
| SMCJ6.0A | Higher PPPM (1500 W), same VWM (6.0 V), but larger DO-214AB (SMC) package; uni-directional only; clamping voltage 10.3 V. | Requires PCB area increase (~3× footprint) and lacks bi-directional symmetry - unsuitable for differential or AC-coupled lines without redesign. | Choose SMCJ6.0A only when surge energy exceeds 800 W and board space permits larger package; verify polarity alignment in layout. |
Compared with SMBJ6.0CA and SMCJ6.0A, SMB8J6.0CHE3/52 uniquely combines bi-directional operation, AEC-Q101 qualification, and 2000 A surge current handling in the compact SMB footprint - making it optimal for space-constrained, high-reliability automotive and industrial interfaces where polarity-agnostic protection is essential.
Availability
SMB8J6.0CHE3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer USB ports, and telecom DSL line cards requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for SMB8J6.0CHE3/52 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 SMB8J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in automotive and industrial environments where compact size and robust surge immunity are critical.
FAQ
What is the clamping voltage of SMB8J6.0CHE3/52 at its rated peak pulse current?
The SMB8J6.0CHE3/52 has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current of 2000 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and confirmed in Vishay's Document Number 88422, page 3. The low VC ensures protected circuitry remains within safe operating limits during surge events. SMB8J6.0CHE3/52 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMB8J6.0CHE3/52 suitable for automotive applications?
Yes, SMB8J6.0CHE3/52 is AEC-Q101 qualified, meaning it has passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per the automotive reliability standard. Its DO-214AA package, MSL Level 1 rating, and 150 °C maximum junction temperature make it appropriate for under-hood and cabin ECU designs. SMB8J6.0CHE3/52 is explicitly listed in Vishay's automotive-grade product matrix for transient suppression in sensor and communication interfaces.
How does the bi-directional configuration of SMB8J6.0CHE3/52 affect its PCB layout?
The bi-directional nature of SMB8J6.0CHE3/52 eliminates polarity sensitivity - either terminal can connect to either side of a differential or AC-coupled line without functional impact. Layout requires only symmetric 0.2" × 0.2" copper pads per terminal per Vishay's recommended mounting. No orientation-dependent routing or silkscreen polarity markers are needed, simplifying placement and reducing assembly errors. SMB8J6.0CHE3/52's cathode band serves only as a visual aid and carries no electrical significance.
What is the leakage current specification for SMB8J6.0CHE3/52 at its stand-off voltage?
SMB8J6.0CHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its 6.0 V stand-off voltage (VWM) and tested at 25 °C. This ultra-low leakage is verified per the electrical characteristics table on page 3 of Vishay Document Number 88422. At elevated temperatures (e.g., 125 °C), leakage remains below 50 µA - ensuring minimal power drain in battery-powered or always-on systems where SMB8J6.0CHE3/52 is deployed.
Does SMB8J6.0CHE3/52 require derating at elevated ambient temperatures?
Yes, SMB8J6.0CHE3/52 must be derated above 25 °C ambient per Figure 2 in Vishay Document Number 88422. At 85 °C ambient, its peak pulse power (PPPM) drops to approximately 65% of the rated 800 W, and at 125 °C, it falls to ~40%. Derating follows a linear thermal curve based on RθJA = 72 °C/W. Proper copper pad sizing (0.2" × 0.2" per terminal) is mandatory to achieve published ratings; reduced pad area accelerates thermal derating. SMB8J6.0CHE3/52's datasheet provides exact derating multipliers for design validation.
SMB8J6.0CHE3/52 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)
SMB8J6.0CHE3/52 FAQ
1.How can I place an order for SMB8J6.0CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CHE3/52 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 SMB8J6.0CHE3/52 reliable?
The price and inventory of SMB8J6.0CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J6.0CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CHE3/52?
SMB8J6.0CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CHE3/52 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 SMB8J6.0CHE3/52?
For technical support, including SMB8J6.0CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CHE3/52 requirements.
6.How does Aetrix verify that SMB8J6.0CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CHE3/52 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 SMB8J6.0CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CHE3/52?
All SMB8J6.0CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CHE3/52, 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 SMB8J6.0CHE3/52 part is unused and in its original packaging.
Return procedure for SMB8J6.0CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CHE3/52 Tags
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