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Taiwan Semiconductor Corporation SMBJ6.0H
- Part No.:
- SMBJ6.0H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0H.pdf
- Description:
- 600W, 7.4V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,612
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Product details
Overview
SMBJ6.0H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for automotive-grade ESD and surge protection in power rails and signal lines. It features a 6.0V working stand-off voltage (VWM), 6.67–8.15V breakdown voltage (VBR), 11.4V maximum clamping voltage at 800A peak pulse current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the SMBJ6.0H datasheet, SMBJ6.0H pinout, SMBJ6.0H application, or SMBJ6.0H equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction-to-ambient thermal resistance (55°C/W), moisture sensitivity level (MSL 1), and compatibility with automated SMT placement on DO-214AA (SMB) footprint.
Technical Context
The SMBJ6.0H operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve sub-1ps response time and low leakage (<1μA above 10V). Its single-die DO-214AA package supports high-energy transients up to 600W (10/1000μs waveform) while maintaining stable clamping across -55°C to +150°C junction temperature range.
Designed for automotive electrical systems, it meets ISO 7637-2 immunity requirements for load dump and inductive switching events. The device exhibits 10°C/W junction-to-case thermal resistance and requires no external biasing-functioning solely as a passive crowbar during overvoltage events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 6.67 V / 8.15 V - Breakdown occurs within this range at 10 mA test current, defining turn-on threshold tolerance |
| VC @ IPP | 11.4 V - Clamps 800 A transient to ≤11.4 V, limiting downstream IC stress during surge events |
| PPK | 600 W - Peak pulse power handling per 10/1000 μs waveform, derated above 25°C ambient |
| ID @ VWM | <1 μA - Ultra-low leakage ensures minimal standby power loss in always-on circuits |
| TJ max | +150 °C - Enables operation in engine compartment environments without thermal shutdown |
| RθJA | 55 °C/W - Thermal resistance determines required PCB copper area for sustained power dissipation |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to protected circuit ground or low-side return path in unidirectional configuration |
| Cathode | Reverse-biased terminal | Connected to line being protected (e.g., 12V rail); conducts when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, mechanical shock, and humidity exposure per stress test requirements |
| Glass passivated junction | Enhances long-term reliability and stability of breakdown voltage under repeated surge stress |
| Clamping ratio VC/VBR | ~1.4–1.7 - Low ratio indicates efficient energy diversion with minimal overvoltage overshoot |
| MSL Level 1 | Unlimited floor life at ≤30°C/60% RH - eliminates bake-out requirement prior to reflow |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
Applications
| Automotive Power Rail Protection | LED Lighting Driver Input Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges before reaching DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤11.4V at 800A, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: Constant-current LED drivers in vehicle headlights subjected to ESD and switching noise. IC Role / Device Role / Timing Role: Front-end protection element absorbing fast EFT bursts and contact discharge events on input terminals. Use Value: Sub-1ps response ensures clamping initiates before sensitive driver ICs experience overstress, preserving luminance control accuracy. |
| Industrial Sensor Interface Protection | Automotive CAN Bus Power Line Protection |
Use Scenario: 24V industrial sensors connected to PLC inputs via long cables susceptible to induced lightning surges. IC Role / Device Role / Timing Role: Standoff protection device on sensor supply line, shunting excess energy to chassis ground. Use Value: 600W rating handles multi-pulse surge sequences common in factory environments without degradation. | Use Scenario: 12V power feed to CAN transceivers in body control modules where supply instability affects bus timing. IC Role / Device Role / Timing Role: Primary overvoltage guard on VCC line upstream of CAN PHY, ensuring stable bias during ignition transients. Use Value: MSL 1 and AEC-Q101 compliance guarantee uninterrupted operation across full automotive temperature range (-40°C to +125°C ambient). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0A | Narrower VBR range (6.67–7.37V) and lower clamping voltage (10.3V at 800A) | Better suited for tighter voltage margin designs where lower VC reduces risk of false triggering | Select SMBJ6.0A when system tolerances require <10.5V clamping under worst-case surge conditions |
| SAC6.0 | Same VWM (6.0V) but lower PPK (400W); higher VC (13.4V at 400A); not AEC-Q101 qualified | Limited to non-automotive industrial or consumer applications with less stringent surge requirements | Choose SAC6.0 only for cost-sensitive, non-automotive designs where 600W capability and automotive qualification are unnecessary |
Compared with SMBJ6.0A and SAC6.0, the SMBJ6.0H offers the highest surge robustness (600W) and automotive qualification, making it the sole choice for ISO 7637-2-compliant vehicle subsystems requiring guaranteed reliability under repetitive transients.
Availability
SMBJ6.0H is available at Aetrix Electronics and suitable for automotive electronics, LED lighting systems, and industrial sensor interfaces requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBJ6.0H 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 distribution and AEC-Q101 validation capabilities.
The SMBJH series was developed specifically for automotive-grade transient suppression, targeting robust, high-power, surface-mount solutions compliant with ISO 7637-2 and AEC-Q101 standards.
FAQ
What is the maximum clamping voltage of SMBJ6.0H at its rated peak pulse current?
The SMBJ6.0H has a maximum clamping voltage (VC) of 11.4 V at 800 A peak impulse current (IPP), measured using the standard 10/1000 µs waveform. This value ensures protected circuits remain below critical overvoltage thresholds during surge events. The SMBJ6.0H maintains this clamping performance across its specified operating temperature range and is validated per ANSI/IEEE C62.35 definitions.
Is SMBJ6.0H suitable for bidirectional transient protection?
No, SMBJ6.0H is a unidirectional TVS diode intended for DC power line or signal line protection with defined polarity. For bidirectional applications, Taiwan Semiconductor specifies parts with "CH" or "CAH" suffixes (e.g., SMBJ6.0CH). Using SMBJ6.0H in reverse-biased AC configurations may result in unintended conduction or failure. Always verify polarity alignment in the SMBJ6.0H layout.
Does SMBJ6.0H require derating at elevated ambient temperatures?
Yes, SMBJ6.0H must be derated above TA = 25°C per the Pulse Derating Curve (Figure 2 in the datasheet). Its peak pulse power drops linearly to zero at +150°C ambient, with 55°C/W junction-to-ambient thermal resistance dictating PCB thermal design. For reliable operation at 105°C ambient, the SMBJ6.0H's effective PPK is reduced to approximately 300W.
What packaging and reel quantity is offered for SMBJ6.0H?
SMBJ6.0H is supplied in DO-214AA (SMB) package on tape-and-reel format, with 3,000 units per reel. The tape complies with EIA-481 standards, and the device's MSL Level 1 rating allows indefinite storage at ≤30°C/60% RH without baking-enabling direct placement into high-volume SMT lines without preconditioning.
How does SMBJ6.0H meet automotive reliability requirements?
SMBJ6.0H is AEC-Q101 qualified and tested for mechanical shock, temperature cycling, humidity bias, and highly accelerated stress testing. It also meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity standards and carries RoHS and halogen-free certifications per IEC 61249-2-21. These qualifications ensure the SMBJ6.0H performs reliably in automotive under-hood and cabin environments.
SMBJ6.0H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJH
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ6.0H FAQ
1.How can I place an order for SMBJ6.0H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0H 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 SMBJ6.0H reliable?
The price and inventory of SMBJ6.0H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0H is usually 5 days.
3.What payment methods are accepted for SMBJ6.0H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0H?
SMBJ6.0H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0H 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 SMBJ6.0H?
For technical support, including SMBJ6.0H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0H requirements.
6.How does Aetrix verify that SMBJ6.0H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0H 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 SMBJ6.0H meets industry standards.
7.What is the process for return or replacement of SMBJ6.0H?
All SMBJ6.0H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0H, 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 SMBJ6.0H part is unused and in its original packaging.
Return procedure for SMBJ6.0H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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