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Taiwan Semiconductor Corporation SMBJ6.0
- Part No.:
- SMBJ6.0
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0.pdf
- Description:
- 600W, 7.4V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,435
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Product details
Overview
SMBJ6.0 from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 6.0 V working stand-off voltage (VWM), 6.67–8.15 V breakdown voltage (VBR) at 10 mA, 11.4 V maximum clamping voltage (VC) at 55 A peak pulse current, and DO-214AA (SMB) package for automated placement in automotive lighting and industrial control systems.
For engineers reviewing the SMBJ6.0 datasheet, SMBJ6.0 pinout, SMBJ6.0 application, or SMBJ6.0 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, leakage current ≤800 µA at 6.0 V, compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b, and thermal derating above 25°C ambient.
Technical Context
The SMBJ6.0 operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-1 ps response to ESD and electrical fast transients. Its clamping action begins at VBR ≥6.67 V and limits line voltage to ≤11.4 V during 55 A 10/1000 µs surges, protecting downstream ICs such as microcontrollers and CAN transceivers.
Thermal design relies on RθJA = 55°C/W and RθJC = 10°C/W, supporting continuous operation up to TJ = 150°C. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, ensuring robust reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below VBR. |
| VBR @ IT=10 mA | 6.67–8.15 V - Breakdown threshold range defining turn-on consistency across production lot. |
| VC @ IPP=55 A | 11.4 V - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPK | 600 W - Peak pulse power handling per single 10/1000 µs event; defines transient energy absorption capacity. |
| ID @ VWM | ≤800 µA - Reverse leakage at rated stand-off; impacts low-power system quiescent current budget. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with cathode band marking; supports 3,000 pcs/reel tape-and-reel delivery. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Leads are solderable per J-STD-002 and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes conduction path during reverse transient. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 11.4 V @ 55 A ensures downstream logic ICs (e.g., 3.3 V or 5 V MCU I/O) remain within absolute maximum ratings during ISO 7637-2 pulses. |
| Response time | <1.0 ps enables effective suppression of ESD events (IEC 61000-4-2) and fast transients without propagation delay. |
| Leakage control | ID ≤800 µA at 6.0 V minimizes impact on battery-powered sensor nodes and high-impedance analog monitoring circuits. |
| Automated assembly support | DO-214AA footprint and J-STD-020 Level 1 moisture rating enable direct integration into high-volume SMT lines without baking or special handling. |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12 V LED headlamp driver subjected to load dump and inductive kickback from relay coils. IC Role / Device Role / Timing Role: Primary clamping element on power input rail upstream of DC-DC converter and LED driver IC. Use Value: Limits transient voltage to ≤11.4 V, preventing latch-up or gate oxide damage in MOSFET drivers and buck controllers. |
Use Scenario: Digital input module receiving 24 V dry-contact signals in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient suppressor on signal conditioning path before optocoupler or Schmitt trigger input stage. Use Value: Absorbs 600 W surges per IEC 61000-4-4 while maintaining ≤800 µA leakage to preserve signal integrity and noise margin. |
| Automotive Body Control Module (BCM) | Smart Building Sensor Hub |
Use Scenario: LIN bus transceiver power supply line exposed to battery reversal and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fuse and LDO input to clamp negative excursions and positive spikes. Use Value: Withstands ISO 7637-2 Pulse 1 (inductive load disconnect) and Pulse 2b (supply interruption) without degradation. |
Use Scenario: Battery-backed environmental sensor node with RS-485 interface and analog temperature/humidity inputs. IC Role / Device Role / Timing Role: Standoff protection on 3.3 V regulator input and signal lines interfacing to external transducers. Use Value: Enables reliable operation in ungrounded installations where ESD coupling and lightning-induced surges exceed 5 kV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0A (Taiwan Semiconductor) | Lower VBR range (6.67–7.37 V) and lower VC (10.3 V @ 61 A); tighter breakdown tolerance. | Better suited for systems requiring lower clamping voltage margin, e.g., 5 V logic rails with narrow VIL/VIH windows. | Select SMBJ6.0A when clamping voltage headroom is critical and higher IPP (61 A vs. 55 A) is acceptable. |
| SMAJ6.0 (ON Semiconductor) | Same DO-214AC (SMA) package; lower PPK (400 W); VC = 11.5 V @ 35 A; higher ID (≤1000 µA). | Limited to lower-energy transients; not compliant with full ISO 7637-2 Pulse 2b or 3b requirements. | Choose SMAJ6.0 only for cost-sensitive consumer applications where 400 W surge rating suffices and layout space allows SMA footprint. |
Compared with SMBJ6.0A, the SMBJ6.0 offers higher clamping voltage but broader VBR tolerance-better for general-purpose 12 V rail protection. Against SMAJ6.0, it delivers 50% higher surge power rating and certified automotive-grade immunity, making it suitable for industrial and automotive deployments where reliability is non-negotiable.
Availability
SMBJ6.0 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and body control module designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMBJ6.0 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global AEC-Q200 qualified production lines.
The SMBJ series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing ISO 7637-2 compliance, tight thermal derating, and automated assembly readiness.
FAQ
What is the maximum clamping voltage of SMBJ6.0 under standard test conditions?
The SMBJ6.0 has a maximum clamping voltage (VC) of 11.4 V when subjected to a 10/1000 µs surge waveform with a peak current (IPP) of 55 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ6.0 maintains this clamping performance across its specified junction temperature range of –55°C to +150°C, with appropriate thermal derating applied above 25°C ambient.
Is SMBJ6.0 suitable for bidirectional transient protection?
No, SMBJ6.0 is a unidirectional TVS diode intended for DC line protection where polarity is fixed. For bidirectional applications-such as AC signal lines or differential buses-Taiwan Semiconductor specifies variants with "C" or "CA" suffixes (e.g., SMBJ6.0C). The SMBJ6.0 lacks symmetrical breakdown characteristics and will conduct only in reverse bias; forward conduction is limited to VF ≈ 3.5 V at 50 A, which is not designed for clamping.
What packaging and reel quantity is available for SMBJ6.0?
SMBJ6.0 is supplied in DO-214AA (SMB) package format on 3,000-piece tape-and-reel carriers, compliant with EIA-481 standards. The reels include moisture barrier bagging meeting J-STD-020 Level 1 requirements, eliminating need for pre-reflow baking. Each unit is marked with the code "KF" and features a cathode band for polarity identification.
Does SMBJ6.0 meet automotive electromagnetic compatibility standards?
Yes, SMBJ6.0 meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (battery line interruption), Pulse 2b (alternator load dump simulation), and Pulses 3a/3b (capacitive coupling and line impedance effects). These certifications confirm its suitability for use in automotive power networks, including body control modules and lighting systems, without additional external filtering.
How does SMBJ6.0 compare to SMBJ5.0 in terms of stand-off voltage and clamping performance?
SMBJ6.0 has a higher working stand-off voltage (VWM = 6.0 V) than SMBJ5.0 (VWM = 5.0 V), making it appropriate for 6 V nominal systems or where tighter margin above typical rail voltage is required. Its clamping voltage (11.4 V) is slightly higher than SMBJ5.0's 9.6 V, reflecting increased energy handling; both share identical 600 W PPK rating and DO-214AA package, enabling drop-in replacement where VWM alignment permits.
SMBJ6.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 11.4V
- Current - Peak Pulse (10/1000µs):
- 55A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ6.0 FAQ
1.How can I place an order for SMBJ6.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0 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 SMBJ6.0 reliable?
The price and inventory of SMBJ6.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0 is usually 5 days.
3.What payment methods are accepted for SMBJ6.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0?
SMBJ6.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0 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 SMBJ6.0?
For technical support, including SMBJ6.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0 requirements.
6.How does Aetrix verify that SMBJ6.0 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0 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 SMBJ6.0 meets industry standards.
7.What is the process for return or replacement of SMBJ6.0?
All SMBJ6.0 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0, 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 SMBJ6.0 part is unused and in its original packaging.
Return procedure for SMBJ6.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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