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Taiwan Semiconductor Corporation BZW06-171B
- Part No.:
- BZW06-171B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-171B.pdf
- Description:
- TVS DIODE 171VWM 353VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,350
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Product details
Overview
BZW06-171B from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode with a 171V working stand-off voltage (VWM), 190–210V breakdown voltage (VBR), and 274V clamping voltage (VC) at 2.2A peak pulse current under 10/1000μs waveform. It features low dynamic impedance, <1μA reverse leakage above 10V, and AEC-Q101 qualification for automotive-grade surge protection in power supply rails and I/O interfaces.
For engineers reviewing the BZW06-171B datasheet, BZW06-171B pinout, BZW06-171B application, or BZW06-171B equivalent, key selection criteria include its DO-204AC (DO-15) package, 175°C maximum junction temperature, fast sub-nanosecond response to transients, and suitability for ESD/EFT immunity in automotive lighting and industrial control systems.
Technical Context
The BZW06-171B operates as a unidirectional avalanche diode, clamping overvoltage transients by entering breakdown when reverse voltage exceeds VBR (190–210V). Its low dynamic impedance ensures stable clamping performance during high-energy 10/1000μs surges up to 600W, while thermal resistance RθJL = 60°C/W supports reliable power dissipation under pulsed conditions.
Designed for primary-side surge suppression, it exhibits a temperature coefficient of 0.108%/°C for VBR and maintains ≤1μA IR at 171V, enabling robust protection without loading sensitive circuits. Polarity is marked via cathode band, and it complies with JESD201 Class 2 whisker testing and RoHS/halogen-free requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/typ/max) | 190 / 200 / 210 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold |
| VC @ IPPM | 274 V at 2.2 A (10/1000μs) - Clamping voltage limiting downstream circuit stress during surge |
| PPK | 600 W - Peak pulse power handling capability per non-repetitive 1ms pulse |
| TJ max | +175 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance supporting PCB heat sinking via leads |
| IR @ VWM | <1 μA - Negligible leakage current preserving signal integrity and power efficiency |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with UL 94V-0 rating and pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to protected line (e.g., 12V rail) to clamp positive transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and infotainment systems |
| 600W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 4 surges without degradation |
| Clamping voltage 274V @ 2.2A | Limits voltage seen by downstream ICs to safe levels during 10/1000μs transients |
| Response time <1 ps | Enables protection against ultrafast ESD events (IEC 61000-4-2 ±15kV contact) before damage occurs |
| RoHS & halogen-free | Complies with EU Directive 2011/65/EU and IEC 61249-2-21 for environmentally constrained designs |
Applications
| Automotive Lighting Systems | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load dump and inductive switching spikes in headlamp and tail lamp modules. IC Role / Device Role / Timing Role: Primary unidirectional TVS on 12V/24V supply rail and signal lines. Use Value: Clamps 12V rail transients to ≤274V, preventing latch-up or gate oxide damage in 40V-rated drivers. | Use Scenario: Safeguarding digital input cards from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24V DC sensor inputs and relay outputs. Use Value: Absorbs 600W pulses without failure, maintaining signal integrity during maintenance hot-swap events. |
| Automotive Body Control Modules | Power Supply Input Stage |
Use Scenario: Shielding microcontroller GPIOs and LIN transceivers from battery line transients during jump-start or alternator load dump. IC Role / Device Role / Timing Role: Secondary-level TVS on local 5V/3.3V rails derived from buck regulators. Use Value: Low leakage (<1μA) avoids regulator load error; 175°C rating ensures reliability near engine bay heat sources. | Use Scenario: Input-stage surge suppression for AC/DC adapters and DC/DC converters in medical and telecom equipment. IC Role / Device Role / Timing Role: First-line defense against line-side surges before primary rectification and filtering. Use Value: 274V clamping enables use with 230VAC-derived 300VDC bus, meeting IEC 61000-4-5 compliance margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Same DO-214AA package; 170V VWM, 189–209V VBR, 274V VC @ 2.2A, 600W PPK | Lower thermal resistance (RθJA ≈ 50°C/W vs. 100°C/W), but no AEC-Q101 qualification | Preferred where board space allows SMB footprint and automotive qualification is not required |
| P6KE180A | DO-204AL (DO-41) package; 180V VWM, 200–220V VBR, 287V VC @ 2.1A, 600W PPK | Higher VBR tolerance and larger body; less suitable for tight automotive PCB layouts | Used where legacy DO-41 compatibility or higher surge margin is prioritized over miniaturization |
Compared with SMBJ170A and P6KE180A, the BZW06-171B offers AEC-Q101 validation and DO-15 mechanical compatibility with existing through-hole production lines, while delivering identical clamping performance at 171V VWM-making it optimal for new automotive designs requiring qualification and cost-effective assembly.
Availability
BZW06-171B is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O protection, and power supply input stage applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for BZW06-171B 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, rectifiers, and MOSFETs, with global distribution and AEC-Q certified production lines.
The BZW06 series was developed specifically for high-reliability automotive and industrial transient suppression, emphasizing robust 600W surge handling, low clamping ratio, and extended temperature operation up to +175°C.
FAQ
What is the polarity configuration of the BZW06-171B?
The BZW06-171B is a unidirectional TVS diode with cathode marked by a band on the DO-204AC (DO-15) package body. It conducts in forward bias and clamps positive transients on the cathode-connected line, making it suitable for DC rail protection where polarity is fixed. This differs from bidirectional variants like BZW06-171, which lack polarity marking and protect both polarities.
Does the BZW06-171B meet AEC-Q101 requirements?
Yes, the BZW06-171B is explicitly AEC-Q101 qualified, as confirmed in the product series documentation. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its suitability for automotive applications such as body control modules and lighting systems where reliability under harsh thermal and electrical conditions is mandatory.
What is the clamping voltage of the BZW06-171B at rated surge current?
The BZW06-171B has a maximum clamping voltage (VC) of 274 V at 2.2 A peak pulse current under the standard 10/1000μs waveform. This value is measured per JEDEC standards and ensures predictable overvoltage limiting during surge events, directly protecting downstream components rated for ≤300V absolute maximum ratings.
Can the BZW06-171B be used in bidirectional signal line protection?
No, the BZW06-171B is unidirectional and must not be used on AC or bidirectional signal lines without external circuitry. For such applications, the bidirectional variant BZW06-171 (without "B" suffix) is specified, with symmetrical VBR and clamping behavior. Using BZW06-171B in bidirectional roles risks failure during negative transients due to lack of reverse conduction capability.
What is the maximum junction temperature rating for the BZW06-171B?
The BZW06-171B has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings in the official datasheet. This enables operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, provided PCB thermal design maintains junction temperature below this limit during repetitive surge events.
BZW06-171B 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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 353V
- Current - Peak Pulse (10/1000µs):
- 11A (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)
BZW06-171B FAQ
1.How can I place an order for BZW06-171B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-171B 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 BZW06-171B reliable?
The price and inventory of BZW06-171B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-171B is usually 5 days.
3.What payment methods are accepted for BZW06-171B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-171B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-171B?
BZW06-171B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-171B 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 BZW06-171B?
For technical support, including BZW06-171B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-171B requirements.
6.How does Aetrix verify that BZW06-171B is sourced from the original manufacturer or authorized distributors?
All BZW06-171B 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 BZW06-171B meets industry standards.
7.What is the process for return or replacement of BZW06-171B?
All BZW06-171B units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-171B, 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 BZW06-171B part is unused and in its original packaging.
Return procedure for BZW06-171B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW06-171B Tags
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