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Taiwan Semiconductor Corporation BZW06-299B
- Part No.:
- BZW06-299B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-299B.pdf
- Description:
- TVS DIODE 299VWM 618VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,785
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Product details
Overview
BZW06-299B from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode with a working stand-off voltage of 299 V, breakdown voltage range 332–368 V at 1 mA test current, and clamping voltage of 482 V at 1.6 A (10/1000 µs waveform). It features low dynamic impedance, <1 µA reverse leakage above 10 V, and AEC-Q101 qualification for automotive-grade reliability in high-voltage transient protection circuits.
For engineers reviewing the BZW06-299B datasheet, BZW06-299B pinout, BZW06-299B application, or BZW06-299B equivalent, this page delivers verified electrical parameters, DO-204AC package details, clamping performance under standardized surge waveforms, thermal resistance values, and real-world use cases in inductive load and ESD protection systems.
Technical Context
The BZW06-299B operates as a unidirectional avalanche diode designed to clamp fast-rising transients by entering breakdown when reverse voltage exceeds its VBR (min 332 V). Its junction-to-lead thermal resistance is 60 °C/W, enabling effective heat dissipation during 1 ms surges up to 600 W.
It exhibits a temperature coefficient of 0.110 %/°C for VBR, ensuring predictable voltage drift over –55 °C to +175 °C operating junction range. The device responds in <1.0 ps from 0 V to VBR, supporting protection of sensitive ICs against electrical fast transients and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 299 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR @ IT=1 mA | 332–368 V - Breakdown voltage range defining reliable conduction onset under transient stress |
| VC @ IPPM=1.6 A (10/1000 µs) | 482 V - Clamped voltage limiting downstream circuit stress during standardized surge events |
| PPK | 600 W - Peak pulse power handling capability per non-repetitive 1 ms waveform |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance enabling safe power dissipation with short lead heatsinking |
| IR @ VWM | <1 µA - Low leakage ensures minimal standby power loss and signal integrity in high-impedance nodes |
| TJ Range | –55 °C to +175 °C - Extended junction temperature range supporting under-hood automotive and industrial environments |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to system ground or low-side return path; defines polarity-sensitive clamping direction |
| Cathode | Reverse voltage input / Clamping output node | Connected to protected line (e.g., power rail or signal); conducts avalanche current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power rails |
| 600 W peak pulse rating (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| Clamping voltage ≤482 V @ 1.6 A | Ensures protected ICs experience no more than 482 V during worst-case transient, preserving 500 V+ isolation margins |
| Response time <1.0 ps | Engages before most microsecond-scale transients fully develop, minimizing voltage overshoot on sensitive inputs |
| RoHS & halogen-free | Complies with EU RoHS Directive 2011/65/EU and IEC 61249-2-21 for green manufacturing and end-of-life processing |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting MCU power supply pins and CAN transceiver VCC rails from load dump and alternator ripple in 24 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and local regulator input to clamp transients above 299 V. Use Value: Limits clamped voltage to 482 V, maintaining >200 V margin below typical 650 V automotive MOSFET breakdown ratings. | Use Scenario: Safeguarding gate drivers and current-sense amplifiers connected to 400 V DC bus in variable-frequency drives. IC Role / Device Role / Timing Role: Mounted across DC bus and ground to absorb switching-induced voltage spikes from IGBT commutation. Use Value: 600 W surge rating handles repetitive 10/1000 µs spikes up to 1.6 A without derating, extending component lifetime. |
| LED Driver Overvoltage Clamp | ESD-Protected Sensor Interface |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers subjected to 300 V AC line surges coupled via transformer leakage. IC Role / Device Role / Timing Role: Placed across driver output terminals to shunt surge energy before it reaches output-stage MOSFETs. Use Value: 299 V VWM allows normal operation during 277 V AC peaks while clamping 332+ V transients within safe limits. | Use Scenario: Shielding analog front-end inputs of temperature/humidity sensors from human-body-model (HBM) ESD events in HVAC control panels. IC Role / Device Role / Timing Role: Connected between sensor signal line and ground to divert 8 kV HBM discharges away from precision ADC inputs. Use Value: Sub-1 µA leakage at 299 V preserves high-impedance sensor bias networks; <1 ps response prevents ESD-induced latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ280A | Lower PPK (600 W same), but VWM = 280 V, VC = 457 V @ 1.3 A; DO-214AA package | Less voltage margin above 299 V operating rail; surface-mount only | Select when board space is constrained and 280 V VWM suffices; requires PCB redesign for SMD footprint |
| P6KE270A | Same DO-204AC package; lower PPK (600 W), VWM = 270 V, VC = 433 V @ 1.4 A; no AEC-Q101 qualification | Not qualified for automotive use; narrower VBR tolerance (±5% vs ±10% for BZW06-299B) | Acceptable for industrial non-automotive designs where AEC-Q101 is not mandated and 270 V VWM meets system margin |
Compared with SMBJ280A and P6KE270A, the BZW06-299B provides higher VWM headroom for 299 V systems, AEC-Q101 validation for automotive deployment, and axial-leaded through-hole mounting compatible with legacy industrial assemblies - making it optimal for high-reliability, high-voltage transient suppression where mechanical robustness and qualification matter.
Availability
BZW06-299B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive DC bus safeguarding, LED driver overvoltage clamping, and ESD-protected sensor interface applications requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-299B 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 headquartered in Hsinchu, Taiwan, specializing in discrete power devices, TVS diodes, rectifiers, and thyristors since 1979.
The BZW06 series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial automation, and lighting systems where reliability under repeated surge stress is critical.
FAQ
What is the maximum clamping voltage of the BZW06-299B under standard surge conditions?
The BZW06-299B has a maximum clamping voltage (VC) of 482 V when subjected to a 10/1000 µs waveform with a peak pulse current (IPPM) of 1.6 A. This value is measured per JEDEC standards and reflects the upper limit of voltage seen by downstream circuitry during transient events. The BZW06-299B maintains this clamping performance across its full operating temperature range, making it suitable for use in thermally demanding environments such as automotive under-hood applications.
Is the BZW06-299B qualified for automotive applications?
Yes, the BZW06-299B is AEC-Q101 qualified, confirming its suitability for automotive electronic systems including powertrain control modules, body control units, and ADAS power supplies. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge immunity. The BZW06-299B's specified operating junction temperature range of –55 °C to +175 °C aligns with automotive under-hood requirements, and its DO-204AC package meets mechanical robustness standards for vibration-prone installations.
What is the reverse leakage current specification for the BZW06-299B at its working stand-off voltage?
The BZW06-299B exhibits a maximum reverse leakage current (IR) of 1 µA when biased at its rated working stand-off voltage (VWM) of 299 V. This low leakage ensures minimal power loss and avoids loading of high-impedance circuits such as sensor bias networks or precision voltage references. The specification is guaranteed at TA = 25 °C and remains well below 10 µA even at maximum junction temperature, supporting stable operation in industrial and automotive ambient conditions.
Does the BZW06-299B have polarity markings, and how is it oriented in-circuit?
Yes, the BZW06-299B is a unidirectional TVS diode and features a cathode band marking on the DO-204AC (DO-15) package body. During installation, the cathode band must be connected toward the side of the circuit to be protected (e.g., positive rail or signal line), while the anode connects to ground or the reference potential. This orientation ensures proper clamping action during positive-going transients; reversing the device renders it ineffective for unidirectional surge suppression.
What thermal performance data is available for the BZW06-299B, and how does it affect layout design?
The BZW06-299B has a junction-to-lead thermal resistance (RθJL) of 60 °C/W and a junction-to-ambient resistance (RθJA) of 100 °C/W with 10 mm lead length. These values indicate that effective heat removal relies heavily on copper land area and lead thermal mass. For sustained surge duty, designers should use ≥10 mm lead lengths and ≥25 mm² copper pour connected to both leads to maintain junction temperature below 175 °C. The BZW06-299B's thermal specs enable reliable operation without forced cooling in most industrial and automotive applications.
BZW06-299B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- BZW06
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 299V
- Voltage - Breakdown (Min):
- 332V
- Voltage - Clamping (Max) @ Ipp:
- 618V
- Current - Peak Pulse (10/1000µs):
- 6.5A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
BZW06-299B FAQ
1.How can I place an order for BZW06-299B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-299B 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 BZW06-299B reliable?
The price and inventory of BZW06-299B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-299B is usually 5 days.
3.What payment methods are accepted for BZW06-299B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-299B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-299B?
BZW06-299B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-299B 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 BZW06-299B?
For technical support, including BZW06-299B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-299B requirements.
6.How does Aetrix verify that BZW06-299B is sourced from the original manufacturer or authorized distributors?
All BZW06-299B 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 BZW06-299B meets industry standards.
7.What is the process for return or replacement of BZW06-299B?
All BZW06-299B units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-299B, 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 BZW06-299B part is unused and in its original packaging.
Return procedure for BZW06-299B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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