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Taiwan Semiconductor Corporation BZW06-273BH
- Part No.:
- BZW06-273BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-273BH.pdf
- Description:
- 600W, 320V, -%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:5,744
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Product details
Overview
BZW06-273BH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, with 273V working stand-off voltage, 304–336V breakdown voltage at 1mA, and 438V clamping voltage at 1.6A (10/1000μs). It delivers AEC-Q101 qualification for automotive-grade surge protection in power supply rails and I/O interfaces.
For engineers reviewing the BZW06-273BH datasheet, BZW06-273BH pinout, BZW06-273BH application, or BZW06-273BH equivalent, key selection criteria include its 273V VWM rating, 438V VC under 1.6A surge, AEC-Q101 qualification, DO-15 mechanical compatibility, and low dynamic impedance for fast transient suppression in automotive and industrial control systems.
Technical Context
The BZW06-273BH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 304–336V breakdown range. Its clamping action limits transient energy to ≤438V at 1.6A (10/1000μs), with <1μA leakage above 273V and thermal resistance of 60°C/W (junction-to-lead).
Designed for single-pulse transients, it supports peak power dissipation of 600W at TA = 25°C and maintains operation across –55°C to +175°C junction temperature. Its response time is typically <1.0ps from 0V to VBR, enabling protection against ESD and electrical fast transients in sensitive analog and digital circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 273 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 304–336 V - Breakdown voltage range defining reliable avalanche onset threshold |
| VC @ IPPM=1.6A (10/1000μs) | 438 V - 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 - Low leakage ensures minimal standby current impact on high-impedance circuits |
| TJ max | +175 °C - Enables use in under-hood automotive environments and high-power industrial enclosures |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance supports PCB-level 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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to system ground or low-side return path in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal / High-side connection point | Connected to protected line (e.g., 24V rail, CAN H, sensor input); cathode band identifies this terminal physically |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| 600W surge rating (10/1000μs) | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surges without degradation |
| Clamping voltage ≤438V at 1.6A | Ensures protected ICs (e.g., microcontrollers, transceivers) remain below absolute maximum ratings during transients |
| Dynamic impedance <1Ω (typ.) | Minimizes voltage overshoot during fast-rising transients (<1ns rise time) |
| RoHS & halogen-free | Complies with EU RoHS Directive 2011/65/EU and IEC 61249-2-21 for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump and alternator ripple on 24V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping transients before LDO/regulator stage. Use Value: Prevents latch-up or permanent damage to PMICs and microcontrollers during ISO 7637-2 Pulse 5a events up to 60V/100ms. | Use Scenario: Guarding 4–20mA current-loop transmitters against ESD and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Placed across loop terminals (supply and return), absorbing ±8kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity and avoids reset events in analog front-end amplifiers and ADCs during field maintenance. |
| LED Driver Overvoltage Clamp | RS-485 Transceiver Line Protection |
Use Scenario: Safeguarding constant-current LED drivers in streetlight controllers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Connected anode-to-ground, cathode-to-LED string positive, clamping overvoltage on output side. Use Value: Limits transient voltage to ≤438V, preventing dielectric breakdown in high-voltage LED arrays rated up to 350V. | Use Scenario: Protecting RS-485 transceivers (e.g., THVD1550) on long industrial bus lines subject to EFT and surge coupling. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; BZW06-273BH used in unidirectional configuration on VCC or receiver input lines. Use Value: Clamps fast transients before they propagate into transceiver ESD structures, reducing bit errors and bus lockup. |
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 | Same DO-214AA package; 270V VWM, 300–333V VBR, 438V VC @ 1.6A - identical clamping but lower VWM by 3V | Preferred where tighter VWM margin is needed near 270V nominal rails; slightly lower surge robustness (600W same, but lower IFSM) | Select SMBJ270A if board space allows SMB package and design requires tighter VWM tolerance |
| P6SMB270A | DO-214AA package; 270V VWM, 300–333V VBR, 438V VC @ 1.6A; AEC-Q101 not specified in standard datasheet | Used in industrial/commercial designs where automotive qualification is not mandatory; same electrical performance otherwise | Choose P6SMB270A for cost-sensitive non-automotive applications requiring identical clamping behavior |
Compared with SMBJ270A and P6SMB270A, the BZW06-273BH offers higher VWM (273V vs. 270V), AEC-Q101 qualification out-of-box, and DO-15 through-hole mounting - making it optimal for legacy automotive harnesses and high-reliability industrial assemblies where leaded components are retained for mechanical robustness.
Availability
BZW06-273BH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, LED driver overvoltage clamp, and RS-485 transceiver line protection requiring stable component supply and AEC-Q101 compliance.
Supply support for BZW06-273BH 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 validation capabilities.
The BZW06 series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robust clamping, low leakage, and extended temperature operation - targeting replacement of older P6KE and 1.5KE families with improved reliability and qualification coverage.
FAQ
What is the polarity configuration of the BZW06-273BH?
The BZW06-273BH is a unidirectional TVS diode, with cathode marked by a band on the DO-15 package body. It conducts only in reverse bias above VBR, making it suitable for DC rail clamping where polarity is fixed. Unlike bidirectional variants (e.g., BZW06-273BH's counterpart BZW06-273B), it does not conduct symmetrically - confirming its use in single-polarity protection schemes like 24V supply lines. The BZW06-273BH datasheet specifies unidirectional test conditions and clamping curves accordingly.
Does the BZW06-273BH meet AEC-Q101 requirements?
Yes, the BZW06-273BH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in Taiwan Semiconductor's official documentation. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for automotive powertrain, chassis, and body electronics. The BZW06-273BH qualification report is available upon request from TSC for design-in verification.
What is the maximum clamping voltage of the BZW06-273BH under standard surge conditions?
The BZW06-273BH has a maximum clamping voltage (VC) of 438 V at 1.6 A using the 10/1000 μs double-exponential surge waveform. This value is measured per JEDEC standards and appears in the manufacturer's electrical characteristics table. It defines the upper voltage limit imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs (e.g., MCUs, transceivers) remain within their absolute maximum ratings. The BZW06-273BH achieves this with low dynamic impedance and sub-nanosecond response.
Can the BZW06-273BH be used in bidirectional protection applications?
No, the BZW06-273BH is strictly unidirectional and must not be substituted for bidirectional protection without redesign. Its internal structure and test specifications (e.g., VBR only defined for reverse bias, no symmetrical clamping data) confirm single-polarity operation. For bidirectional needs - such as AC line or differential bus protection - the designated variant BZW06-273B must be used. Using BZW06-273BH in place of a bidirectional device risks failure during positive-going transients on grounded lines.
What is the thermal resistance specification for the BZW06-273BH?
The BZW06-273BH has a junction-to-lead thermal resistance (RθJL) of 60°C/W and junction-to-ambient resistance (RθJA) of 100°C/W with 10 mm lead length. These values are measured under standardized conditions and define how effectively heat dissipates from the silicon junction through the leads to the PCB copper or ambient air. Proper PCB layout - including adequate copper pour on both leads - is essential to maintain safe operation at full 600W surge levels. The BZW06-273BH thermal performance enables sustained operation up to +175°C junction temperature.
BZW06-273BH 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):
- 273V
- Voltage - Breakdown (Min):
- 304V
- Voltage - Clamping (Max) @ Ipp:
- 438V
- Current - Peak Pulse (10/1000µs):
- 1.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
BZW06-273BH FAQ
1.How can I place an order for BZW06-273BH through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-273BH 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 BZW06-273BH reliable?
The price and inventory of BZW06-273BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-273BH is usually 5 days.
3.What payment methods are accepted for BZW06-273BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-273BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-273BH?
BZW06-273BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-273BH 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 BZW06-273BH?
For technical support, including BZW06-273BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-273BH requirements.
6.How does Aetrix verify that BZW06-273BH is sourced from the original manufacturer or authorized distributors?
All BZW06-273BH 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 BZW06-273BH meets industry standards.
7.What is the process for return or replacement of BZW06-273BH?
All BZW06-273BH units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-273BH, 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 BZW06-273BH part is unused and in its original packaging.
Return procedure for BZW06-273BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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