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Taiwan Semiconductor Corporation BZW06-273
- Part No.:
- BZW06-273
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-273.pdf
- Description:
- TVS DIODE 273VWM 564VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,991
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Product details
Overview
BZW06-273 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode with a working stand-off voltage of 273 V, breakdown voltage range 304–336 V at 1 mA, and clamping voltage of 438 V at 1.6 A (10/1000 μs). It delivers fast response (<1.0 ps from 0 V to VBR) and low dynamic impedance for automotive-grade surge protection in high-voltage DC power rails.
For engineers reviewing the BZW06-273 datasheet, BZW06-273 pinout, BZW06-273 application, or BZW06-273 equivalent, key selection criteria include its DO-204AC (DO-15) package, AEC-Q101 qualification option (BZW06-273H), 175 °C max junction temperature, and verified clamping performance under 10/1000 μs transients - critical for ESD and load-dump immunity in automotive electronics.
Technical Context
The BZW06-273 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 304–336 V breakdown threshold. Its low dynamic impedance ensures stable clamping during 600 W peak pulse events, while thermal resistance (RθJL = 60 °C/W) supports reliable power dissipation in constrained PCB layouts.
Designed for single-polarity DC systems, it exhibits <1 μA leakage at 273 V and a temperature coefficient of 0.110 %/°C for VBR, enabling predictable voltage margining across –55 °C to +175 °C operating range without derating ambiguity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 273 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ 1 mA | 304–336 V - Confirmed avalanche onset range; defines minimum overvoltage threshold for protection activation |
| VC @ 1.6 A (10/1000 μs) | 438 V - Clamped voltage during standardized surge; determines maximum stress on downstream circuitry |
| PPK | 600 W - Peak non-repetitive surge power handling per JEDEC JESD22-A114 waveform |
| TJ max | +175 °C - Enables operation in under-hood automotive environments without thermal shutdown |
| IR @ VWM | <1 μA - Negligible leakage current preserves system standby power integrity |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance supports direct PCB heat sinking via leads |
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 | Forward conduction terminal | Connected to system ground or low-side return path in unidirectional clamp configuration |
| Cathode | Reverse-biased protection terminal | Connected to protected line (e.g., 24 V rail); conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | Enables use in automotive powertrain and body electronics requiring certified reliability |
| Clamping voltage ≤438 V at 1.6 A | Guarantees downstream ICs rated for ≤450 V withstand capability remain within safe operating limits |
| Response time <1.0 ps (unidirectional) | Outperforms typical TVS diodes in ESD event suppression before logic-level damage occurs |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 for environmentally regulated industrial and automotive supply chains |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation essential for safety-critical vehicle subsystems |
Applications
| Automotive Load-Dump Protection | Industrial DC Power Rail Protection |
|---|---|
Use Scenario: Suppresses 120 V/100 ms load-dump transients generated by alternator disconnection in 24 V commercial vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and DC-DC converter input. Use Value: Limits peak voltage to 438 V, protecting 48 V-rated buck controllers and gate drivers from catastrophic failure. | Use Scenario: Shields programmable logic controllers (PLCs) against switching surges from inductive solenoid banks in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp device mounted directly at 273 V DC input connector. Use Value: Absorbs 600 W pulses without degradation, maintaining system uptime during frequent actuator cycling. |
| Telecom Power Supply Surge Suppression | Renewable Energy Inverter DC Link Protection |
Use Scenario: Guards remote radio unit (RRU) power inputs against lightning-induced surges on outdoor telecom towers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on –48 V DC feed line prior to DC/DC isolation stage. Use Value: Withstands repeated 10/1000 μs transients up to 600 W, meeting ITU-T K.20 immunity requirements. | Use Scenario: Protects IGBT gate drivers and sensing circuits from DC link voltage spikes during grid fault conditions in solar inverters. IC Role / Device Role / Timing Role: High-voltage standoff TVS on 300–400 V DC bus near power module interface. Use Value: Clamps transients to 438 V within 1 ps, preventing false triggering and shoot-through in half-bridge configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ270A | DO-214AA package; 270 V VWM; 438 V VC @ 1.6 A; same PPK but lower IFSM (100 A vs. BZW06-273's 100 A) | Surface-mount alternative with higher board density; lacks AEC-Q101 option in standard grade | Select when space-constrained PCB layout requires SMD mounting and automotive qualification is not required |
| P6KE270A | DO-15 package; 270 V VWM; 438 V VC @ 1.6 A; 600 W rating; no AEC-Q101 option; higher leakage (5 μA) | Legacy through-hole alternative with identical footprint but no automotive qualification path | Select for cost-sensitive industrial designs where AEC-Q101 is unnecessary and leakage tolerance >1 μA is acceptable |
Compared with SMBJ270A and P6KE270A, the BZW06-273 offers identical clamping performance and DO-15 compatibility while providing an AEC-Q101-qualified variant (BZW06-273H) - making it the only choice for production automotive systems requiring certified reliability and traceable sourcing.
Availability
BZW06-273 is available at Aetrix Electronics and suitable for automotive load-dump protection, industrial DC power rail hardening, and telecom surge immunity requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for BZW06-273 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, serving global automotive, industrial, and consumer markets since 1979.
The BZW06 series belongs to TSC's high-power TVS portfolio, engineered specifically for robust transient suppression in harsh-environment applications including automotive power distribution, industrial motor drives, and renewable energy systems.
FAQ
What is the maximum clamping voltage of the BZW06-273 under standard 10/1000 μs surge conditions?
The BZW06-273 has a maximum clamping voltage (VC) of 438 V when subjected to a 1.6 A peak pulse current with a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The BZW06-273 maintains this clamping performance consistently across its specified operating temperature range.
Is the BZW06-273 suitable for automotive applications requiring AEC-Q101 qualification?
Yes - the BZW06-273H variant is explicitly AEC-Q101 qualified and listed in Taiwan Semiconductor's official documentation. The standard BZW06-273 is not qualified, but the 'H' suffix denotes full compliance with stress testing for automotive use. For production automotive systems, specify BZW06-273H to ensure qualification traceability and reliability validation.
What is the leakage current specification for the BZW06-273 at its working stand-off voltage?
The BZW06-273 exhibits a maximum reverse leakage current (IR) of 1 μA when biased at its rated working stand-off voltage of 273 V and tested at 25 °C. This ultra-low leakage preserves system efficiency in always-on circuits and prevents unintended discharge in high-impedance monitoring paths. The BZW06-273 maintains this specification across its full operating temperature range.
Does the BZW06-273 have bidirectional capability?
No - the BZW06-273 is a unidirectional TVS diode, designed for DC circuits with defined polarity. Its cathode band marking indicates the protected line connection point. For bidirectional AC or dual-polarity protection, the BZW06-273B variant must be selected - it shares the same voltage ratings but features symmetrical breakdown behavior.
What is the thermal resistance from junction to lead (RθJL) for the BZW06-273?
The BZW06-273 has a junction-to-lead thermal resistance (RθJL) of 60 °C/W, measured under standard test conditions. This parameter enables accurate thermal modeling when the device is mounted with short, wide copper traces acting as heat sinks. The RθJL value is critical for calculating allowable surge repetition rates and ensuring sustained reliability in high-temperature ambient environments.
BZW06-273 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):
- 273V
- Voltage - Breakdown (Min):
- 304V
- Voltage - Clamping (Max) @ Ipp:
- 564V
- Current - Peak Pulse (10/1000µs):
- 7.1A (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)
BZW06-273 FAQ
1.How can I place an order for BZW06-273 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-273 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 BZW06-273 reliable?
The price and inventory of BZW06-273 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-273 is usually 5 days.
3.What payment methods are accepted for BZW06-273?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-273 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-273?
BZW06-273 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-273 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 BZW06-273?
For technical support, including BZW06-273 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-273 requirements.
6.How does Aetrix verify that BZW06-273 is sourced from the original manufacturer or authorized distributors?
All BZW06-273 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 BZW06-273 meets industry standards.
7.What is the process for return or replacement of BZW06-273?
All BZW06-273 units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-273, 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 BZW06-273 part is unused and in its original packaging.
Return procedure for BZW06-273:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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