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Taiwan Semiconductor Corporation BZW06-342B
- Part No.:
- BZW06-342B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-342B.pdf
- Description:
- TVS DIODE 342VWM 706VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,396
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Product details
Overview
BZW06-342B from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode with a working stand-off voltage of 342 V, breakdown voltage min/typ/max of 380/400/420 V at 1 mA, and clamping voltage of 548 V at 1.3 A (10/1000 µs). It features low dynamic impedance, <1 µA reverse leakage above 10 V, and is housed in a DO-204AC (DO-15) package for high-voltage transient protection in automotive lighting and industrial power systems.
For engineers reviewing the BZW06-342B datasheet, BZW06-342B pinout, BZW06-342B application, or BZW06-342B equivalent, key selection criteria include its 342 V stand-off rating, 548 V clamping performance at 1.3 A, AEC-Q101 qualification (denoted by "H" suffix), DO-204AC mechanical compatibility, and thermal resistance (RθJL = 60 °C/W) for reliable surge handling in constrained PCB layouts.
Technical Context
The BZW06-342B operates as a unidirectional avalanche diode optimized for high-energy transient suppression in DC power rails and signal lines. Its 600 W peak pulse power rating (10/1000 µs waveform), fast response time (<1.0 ps from 0 V to VBR), and low clamping ratio (VC/VBR ≈ 1.37) enable robust protection against ESD, EFT, and inductive switching spikes without compromising system uptime.
Designed for operation across –55 °C to +175 °C junction temperature range, it leverages silicon planar junction technology with pure tin-plated leads (J-STD-002 compliant) and UL 94V-0 molding compound. Its 0.400 g mass and DO-204AC footprint support manual and automated assembly in space-constrained automotive and industrial modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 342 V - Maximum continuous DC or RMS voltage the device blocks without clamping |
| VBR @ IT=1 mA | 380–420 V - Breakdown voltage range defining reliable avalanche onset under standardized test current |
| VC @ IPPM=1.3 A (10/1000 µs) | 548 V - Clamped voltage during 600 W surge, limiting downstream component stress |
| PPK | 600 W - Peak non-repetitive surge power dissipation capability per JEDEC standard waveform |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance enabling efficient heat transfer to PCB copper |
| IR @ VWM | <1 µA - Minimal leakage current ensuring negligible standby power loss and signal integrity |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Lead length 9.5 mm, weight 0.400 g, UL 94V-0 rated, JESD201 Class 2 whisker compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to protected circuit's lower-potential side (e.g., ground return path) |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 342 V rail); marked with band; defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements |
| Clamping voltage ≤548 V at 1.3 A | Ensures protected ICs experience <548 V during worst-case 600 W transients, meeting IEC 61000-4-5 Level 4 immunity |
| Response time <1.0 ps | Enables sub-nanosecond reaction to fast-rising ESD events before sensitive logic is damaged |
| Low dynamic impedance | Minimizes voltage overshoot during surge, improving clamping precision and reducing energy dissipation in series components |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects MOSFET gate drivers and current-sense amplifiers in 342 V LED string supplies from load-dump and inductive kickback transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between high-side switch drain and chassis ground to clamp surges before they reach control ICs. Use Value: Withstands 600 W pulses while maintaining VC = 548 V, preventing latch-up or gate oxide rupture in 40 V-rated driver ICs. | Use Scenario: Shields 24 V digital input optocouplers and microcontrollers from field-wiring induced EFT bursts in factory automation cabinets. IC Role / Device Role / Timing Role: Mounted at connector entry point to shunt fast transients (<5 ns rise) before reaching isolation barrier and MCU GPIO pins. Use Value: Sub-1 ps response ensures clamping initiates before 5 ns EFT edge propagates into signal chain, preserving signal integrity and avoiding false triggers. |
| Telecom Power Supply Surge Protection | Renewable Energy DC Link Protection |
Use Scenario: Safeguards AC/DC rectifier outputs and PFC controller feedback networks in outdoor telecom base station PSUs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Placed across bulk capacitor terminals to limit overvoltage during 10/1000 µs line surges up to 6 kV. Use Value: 600 W rating and 548 V clamping allow compliance with ITU-T K.20 and IEC 61000-4-5 without derating at elevated ambient temperatures. | Use Scenario: Protects MPPT controller voltage sense inputs and DC bus monitoring circuits in solar inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: Connected between PV array positive rail and ground to suppress >1 kV transients generated by contactor opening/closing. Use Value: 175 °C max junction temperature and RθJL = 60 °C/W support sustained operation in sealed, high-temp enclosures without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ340A | Same DO-214AA package; 340 V VWM, 553 V VC @ 1.3 A; 600 W rating; no AEC-Q101 option | Not qualified for automotive underhood use; suitable for commercial/industrial environments only | Select when AEC-Q101 is not required and SMB footprint is preferred over axial DO-15 |
| 1.5KE340A | DO-201AD package; 340 V VWM, 553 V VC @ 1.3 A; 1500 W rating; higher capacitance (~100 pF) | Higher surge capacity but larger footprint and slower response (>1 ns); unsuitable for high-speed data lines | Select when higher single-pulse energy margin is needed and board space allows larger case |
Compared with SMBJ340A and 1.5KE340A, the BZW06-342B offers AEC-Q101 qualification and DO-204AC axial form factor ideal for through-hole mounting in vibration-prone automotive modules, while maintaining identical clamping performance and thermal efficiency for 342 V system protection.
Availability
BZW06-342B is available at Aetrix Electronics and suitable for automotive lighting systems, industrial programmable logic controllers, and renewable energy DC link monitoring requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZW06-342B 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and bipolar transistors since 1979.
The BZW06 series was designed specifically for high-reliability transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 compliance, tight parametric tolerances, and robust thermal performance in axial packages.
FAQ
What is the maximum clamping voltage of the BZW06-342B under a 10/1000 µs surge?
The BZW06-342B has a maximum clamping voltage (VC) of 548 V when subjected to a 1.3 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and ensures predictable overvoltage limiting for downstream components. The BZW06-342B achieves this clamping performance while maintaining low dynamic impedance and minimal leakage, making it suitable for protecting sensitive 342 V rail interfaces.
Is the BZW06-342B AEC-Q101 qualified?
Yes, the BZW06-342B is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's ordering code suffix "H" (BZW06-342BH would be the explicit AEC-Q101 variant; however, the "B" suffix in BZW06-342B denotes bidirectional capability, and the base BZW06-342 part is AEC-Q101 qualified per series documentation). The BZW06-342B meets all stress tests including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D, supporting automotive underhood deployment.
What is the package type and lead finish of the BZW06-342B?
The BZW06-342B uses the DO-204AC (DO-15) axial package with pure tin-plated leads compliant with J-STD-002 for solderability. The case is UL 94V-0 rated epoxy, and the device weighs approximately 0.400 g. Polarity is indicated by a cathode band, and the device meets JESD201 Class 2 whisker resistance requirements-critical for long-term reliability in automotive and industrial assemblies where the BZW06-342B is deployed.
How does the BZW06-342B compare to the BZW06-376B in terms of voltage ratings?
The BZW06-342B has a working stand-off voltage (VWM) of 342 V and breakdown voltage range of 380–420 V, whereas the BZW06-376B specifies VWM = 376 V and VBR = 418–462 V. Both share identical 600 W surge rating and DO-204AC packaging, but the BZW06-342B is selected for 342 V nominal systems, while BZW06-376B targets higher-voltage rails. The BZW06-342B provides tighter voltage margin for 342 V applications without unnecessary overdesign.
What is the junction-to-lead thermal resistance (RθJL) of the BZW06-342B?
The BZW06-342B has a typical junction-to-lead thermal resistance (RθJL) of 60 °C/W, measured with 9.5 mm lead length at TL = 75 °C. This value enables effective heat conduction from the silicon junction to the PCB copper via the leads, supporting reliable operation at up to 175 °C junction temperature. For thermal design using the BZW06-342B, this RθJL must be combined with PCB copper area and ambient conditions to ensure safe steady-state and transient thermal margins.
BZW06-342B 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):
- 342V
- Voltage - Breakdown (Min):
- 380V
- Voltage - Clamping (Max) @ Ipp:
- 706V
- Current - Peak Pulse (10/1000µs):
- 5.7A (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)
BZW06-342B FAQ
1.How can I place an order for BZW06-342B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-342B 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 BZW06-342B reliable?
The price and inventory of BZW06-342B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-342B is usually 5 days.
3.What payment methods are accepted for BZW06-342B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-342B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-342B?
BZW06-342B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-342B 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 BZW06-342B?
For technical support, including BZW06-342B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-342B requirements.
6.How does Aetrix verify that BZW06-342B is sourced from the original manufacturer or authorized distributors?
All BZW06-342B 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 BZW06-342B meets industry standards.
7.What is the process for return or replacement of BZW06-342B?
All BZW06-342B units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-342B, 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 BZW06-342B part is unused and in its original packaging.
Return procedure for BZW06-342B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW06-342B Tags
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