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Taiwan Semiconductor Corporation BZW06-171
- Part No.:
- BZW06-171
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-171.pdf
- Description:
- TVS DIODE 171VWM 353VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,556
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Product details
Overview
BZW06-171 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 (10/1000μs). It features low dynamic impedance, <1μA reverse leakage above 10V, and AEC-Q101 qualification for automotive-grade surge protection in power supply rails and interface lines.
For engineers reviewing the BZW06-171 datasheet, BZW06-171 pinout, BZW06-171 application, or BZW06-171 equivalent, key selection criteria include its DO-204AC (DO-15) package, unidirectional polarity, 175°C maximum junction temperature, and suitability for ESD/EFT immunity in automotive control modules, LED drivers, and industrial power converters.
Technical Context
The BZW06-171 operates as a unidirectional avalanche diode, triggered when transient voltage exceeds its 190–210V VBR range at 1mA test current. Its clamping action limits peak line voltage to 274V under 2.2A 10/1000μs surge, delivering 600W peak pulse power with <1.0ps response time from 0V to VBR.
Thermal performance is defined by 60°C/W junction-to-lead resistance and 100°C/W junction-to-ambient resistance (L = 10mm), enabling reliable operation across -55°C to +175°C junction temperature range. It exhibits 0.108%/°C VBR temperature coefficient and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous DC or RMS operating voltage before conduction begins |
| VBR min/max | 190 / 210 V @ 1 mA - Avalanche breakdown threshold range defining turn-on consistency |
| VC @ IPPM | 274 V @ 2.2 A (10/1000μs) - Clamped voltage during standardized surge, limiting downstream stress |
| PPK | 600 W - Peak pulse power handling capability per non-repetitive 1ms waveform |
| IR @ VWM | <1 μA - Negligible leakage current at rated stand-off voltage, minimizing standby loss |
| TJ max | +175 °C - Maximum junction temperature enabling high-temperature automotive under-hood use |
| RθJL | 60 °C/W - Thermal resistance from junction to lead, critical for PCB copper pour design |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Lead finish: pure tin, solderable per J-STD-002. Weight: 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or return path; defines conduction direction in unidirectional mode |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12V rail); clamps transients toward anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 600W surge rating (10/1000μs) | Withstands high-energy transients from load dump or inductive switching without degradation |
| <1.0ps response time (0V→VBR) | Enables sub-nanosecond clamping onset, protecting fast logic and analog interfaces |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and environmental regulations for global manufacturing |
| Low dynamic impedance | Ensures stable clamping voltage across varying surge currents, improving protection predictability |
Applications
| Automotive Power Rail Protection | Industrial LED Driver Input |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from ISO 7637-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp overvoltage before it reaches PMIC or MCU inputs. Use Value: Limits peak voltage to 274V during 2.2A transients, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: Safeguarding constant-current LED driver ICs against inductive kickback from relay-controlled AC mains switching. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input stage to absorb stored energy from transformer leakage inductance. Use Value: 600W peak power rating handles repetitive 10/1000μs surges common in industrial lighting control cabinets. |
| Telecom Interface Surge Suppression | Industrial PLC Analog Input Protection |
Use Scenario: Shielding RS-485 transceivers connected to long outdoor cables exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC and signal lines referenced to local ground to shunt induced common-mode energy. Use Value: 171V VWM allows compatibility with 120VAC-derived 12V supplies while maintaining margin against normal ripple. | Use Scenario: Guarding 4–20mA current loop receivers against ESD events and field-wiring faults in factory automation systems. IC Role / Device Role / Timing Role: Primary front-end TVS on input terminals to divert >8kV HBM ESD pulses before reaching precision op-amps or ADCs. Use Value: Sub-1μA leakage preserves accuracy of microamp-level loop current measurement circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient 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 rating | Surface-mount alternative requiring PCB re-layout; lacks AEC-Q101 qualification | Select when SMT assembly is mandatory and automotive qualification is not required |
| P6SMB170A | DO-214AA package; identical electrical specs but lower thermal robustness (RθJA = 110°C/W vs. 100°C/W) | Higher thermal resistance reduces sustained surge margin in high-ambient environments | Prefer for cost-sensitive industrial designs where ambient stays below 75°C |
Compared with SMBJ170A and P6SMB170A, the BZW06-171 offers through-hole mechanical stability, AEC-Q101 validation, and superior junction-to-ambient thermal resistance-making it optimal for high-reliability automotive and industrial power entry points where vibration, thermal cycling, and regulatory compliance are critical.
Availability
BZW06-171 is available at Aetrix Electronics and suitable for automotive control units, industrial LED drivers, and telecom interface protection requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-171 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-Q101 certification capability.
The BZW06 series is designed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing rugged packaging, precise voltage grading, and repeatable clamping performance under harsh thermal and electrical stress.
FAQ
What is the polarity configuration of the BZW06-171?
The BZW06-171 is a unidirectional TVS diode, marked with a cathode band indicating the high-side terminal. It conducts only when the cathode is positive relative to the anode, making it suitable for DC rail protection where reverse voltage is not expected. This differs from bidirectional variants like BZW06-171B, which protect both polarities. The BZW06-171's unidirectional behavior ensures minimal leakage and optimal clamping efficiency in single-polarity systems.
Does the BZW06-171 meet AEC-Q101 requirements?
Yes, the BZW06-171 is AEC-Q101 qualified when ordered with the "H" suffix (e.g., BZW06-171H). This qualification confirms its reliability for automotive applications, including temperature cycling, humidity testing, and mechanical shock. Standard BZW06-171 parts may not carry full AEC-Q101 documentation unless explicitly specified. Always verify ordering code and certificate status for automotive deployment of the BZW06-171.
What is the maximum clamping voltage of the BZW06-171 under standard test conditions?
The BZW06-171 has a maximum clamping voltage (VC) of 274 V when subjected to a 2.2 A peak pulse current with a 10/1000 μs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events. The BZW06-171 maintains this clamping performance across its specified operating temperature range, supporting robust system-level immunity design.
Can the BZW06-171 be used in bidirectional signal line protection?
No, the BZW06-171 is strictly unidirectional and unsuitable for bidirectional signal lines such as RS-485 or USB data pairs. For such applications, the bidirectional variant BZW06-171B must be used, as it provides symmetrical clamping for both positive and negative transients. Using the BZW06-171 on bidirectional lines risks forward conduction during negative excursions and failure to suppress negative surges, compromising protection integrity of the BZW06-171.
What is the thermal resistance specification for the BZW06-171 in typical mounting conditions?
The BZW06-171 has a junction-to-lead thermal resistance (RθJL) of 60°C/W and a junction-to-ambient thermal resistance (RθJA) of 100°C/W when mounted with 10 mm lead length. These values assume standard DO-204AC (DO-15) PCB layout with adequate copper area. Proper heatsinking via wide traces or thermal vias is recommended for repeated surge duty cycles to maintain junction temperature below 175°C in the BZW06-171.
BZW06-171 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:
- 1
- Bidirectional Channels:
- -
- 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)
BZW06-171 FAQ
1.How can I place an order for BZW06-171 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-171 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 BZW06-171 reliable?
The price and inventory of BZW06-171 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-171 is usually 5 days.
3.What payment methods are accepted for BZW06-171?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-171 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-171?
BZW06-171 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-171 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 BZW06-171?
For technical support, including BZW06-171 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-171 requirements.
6.How does Aetrix verify that BZW06-171 is sourced from the original manufacturer or authorized distributors?
All BZW06-171 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 BZW06-171 meets industry standards.
7.What is the process for return or replacement of BZW06-171?
All BZW06-171 units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-171, 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 BZW06-171 part is unused and in its original packaging.
Return procedure for BZW06-171:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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