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Taiwan Semiconductor Corporation BZW04-110
- Part No.:
- BZW04-110
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-110.pdf
- Description:
- TVS DIODE 111VWM 179VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,995
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Product details
Overview
BZW04-110 from Taiwan Semiconductor is a unidirectional transient voltage suppressor diode (TVS) designed for high-energy surge protection in DC power rails and signal lines. It features a 111 V working stand-off voltage (VWM), 124–137 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 μs), clamping voltage of 179 V at 2.2 A peak impulse current, and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the BZW04-110 datasheet, BZW04-110 pinout, BZW04-110 application, or BZW04-110 equivalent, this device is selected for robust ESD/EFT immunity in automotive body electronics, industrial sensor interfaces, and lighting control circuits where fast clamping (<1 ns response), low leakage (<1 μA @ VWM), and AEC-Q101 qualification are required.
Technical Context
The BZW04-110 functions as a silicon avalanche diode with unidirectional polarity, leveraging controlled reverse-biased breakdown to clamp transient overvoltages before they reach downstream ICs. Its DO-204AL (DO-41) axial package supports through-hole mounting and provides thermal resistance of 100 °C/W (junction-to-ambient) on standard PCB layouts.
It delivers 400 W surge capability per the 10/1000 μs waveform standard (IEC 61000-4-5), with clamping voltage tightly specified at 179 V under 2.2 A IPP, enabling predictable protection margin design. The device exhibits a VBR temperature coefficient of 0.107 %/°C, ensuring stable breakdown behavior across its full operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 111 V - Maximum continuous DC or RMS voltage the device blocks without conduction. |
| VBR (min/max) | 124–137 V @ 1 mA - Confirmed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC @ IPP | 179 V @ 2.2 A - Clamped voltage during worst-case 10/1000 μs surge; sets upper voltage limit seen by protected circuitry. |
| PPK | 400 W - Peak pulse power handling per IEC 61000-4-5; determines survivability against lightning-induced surges. |
| ID @ VWM | <1 μA - Reverse leakage at rated stand-off voltage; ensures negligible standby power loss and signal integrity. |
| TJ max | +175 °C - Maximum junction temperature; enables use in under-hood automotive and high-temperature industrial environments. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; completes clamping loop during transient events. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 12 V rail, CAN bus, sensor supply); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - supports under-hood and chassis-mounted applications. |
| 400 W peak pulse power (10/1000 μs) | Enables single-device protection against Level 4 IEC 61000-4-5 surges (4 kV line-to-ground) without external series impedance. |
| Clamping voltage ≤179 V @ 2.2 A | Provides ≥32 V margin above 111 V VWM, allowing safe operation of 150 V-rated downstream components like gate drivers or regulators. |
| Reverse leakage <1 μA @ VWM | Minimizes quiescent current draw and avoids false triggering in high-impedance sensing nodes or battery-powered systems. |
Applications
| Automotive Body Control Module (BCM) | Industrial LED Driver Input Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of BCM microcontrollers and LIN transceivers from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused battery rail and local regulator input to clamp spikes up to 120 V. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic supplies while maintaining <1 μA leakage during normal operation. |
Use Scenario: Safeguarding constant-current LED driver ICs from inductive kickback during PWM dimming or hot-swap events. IC Role / Device Role / Timing Role: TVS connected across input capacitor to absorb energy from relay coil de-energization or cable disconnect arcs. Use Value: Limits voltage overshoot to ≤179 V, preserving MOSFET gate oxide integrity and avoiding driver IC reset or shutdown. |
| Smart Streetlight Communication Interface | Factory Automation Sensor Node |
Use Scenario: Shielding RS-485 transceivers and power-over-ethernet (PoE) injectors from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional-capable variant (BZW04-110B) used across differential pairs or DC bias lines to suppress common-mode transients. Use Value: Achieves <1 ns response time and 400 W rating without adding capacitance that would degrade 10 Mbps data integrity. |
Use Scenario: Protecting analog front-end inputs of temperature/pressure sensors exposed to EFT bursts in PLC backplanes. IC Role / Device Role / Timing Role: TVS installed at connector entry point to shunt fast transients (IEC 61000-4-4, 4 kV) before reaching precision ADC inputs. Use Value: Maintains <1 μA leakage to avoid offset drift in 24-bit sigma-delta converters while clamping to 179 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Same DO-214AA package; lower PPK (600 W vs. 400 W), higher VC (183 V), tighter VBR tolerance (5% vs. ±5.3%). | Preferred for surface-mount designs with space constraints; less suitable for through-hole legacy boards. | Select SMBJ110A only if SMT assembly is mandatory and 183 V clamping is acceptable for protected IC voltage ratings. |
| P6KE110A | DO-15 package; identical VWM/VBR/VC specs but lower PPK (600 W), higher RθJA (125 °C/W), and no AEC-Q101 option. | Used in cost-sensitive consumer power supplies; lacks automotive qualification and thermal performance for under-hood use. | Choose P6KE110A for non-automotive, ambient-temperature applications where DO-15 footprint compatibility is required. |
Compared with BZW04-110, SMBJ110A offers superior power density in SMT form but sacrifices through-hole ruggedness and AEC-Q101 assurance, while P6KE110A matches electrical specs but lacks automotive validation and thermal efficiency for high-reliability deployments.
Availability
BZW04-110 is available at Aetrix Electronics and suitable for automotive body electronics, industrial LED drivers, smart streetlight communication interfaces, and factory automation sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for BZW04-110 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 power management, protection, and signal conditioning devices since 1979.
The BZW04 series was developed to deliver high-reliability, high-power TVS diodes for automotive and industrial applications demanding AEC-Q101 compliance, wide temperature operation, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the maximum clamping voltage of the BZW04-110 under surge conditions?
The BZW04-110 has a maximum clamping voltage (VC) of 179 V when subjected to its rated peak impulse current (IPP) of 2.2 A using the 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and defines the highest voltage the protected circuit will experience during a standardized surge event. The BZW04-110 maintains this clamping performance consistently across its operating temperature range.
Is the BZW04-110 suitable for automotive applications?
Yes - the BZW04-110 is offered in an AEC-Q101 qualified version (BZW04-110H), validated for automotive use including temperature cycling, highly accelerated life testing, and ESD robustness. Its –55 °C to +175 °C operating junction temperature range and DO-204AL mechanical construction make it appropriate for under-hood and chassis-mounted systems where the BZW04-110 provides reliable transient suppression.
How does the BZW04-110 differ from bidirectional variants like BZW04-110B?
The BZW04-110 is unidirectional and features a cathode band marking; it protects only against positive-going transients on the cathode side relative to anode ground. In contrast, BZW04-110B is bidirectional, symmetrically clamps both polarities, and lacks polarity marking. Both share identical VWM (111 V), VBR (124–137 V), and VC (179 V), but BZW04-110B is used for AC-coupled or differential signal lines where polarity reversal occurs.
What is the thermal resistance of the BZW04-110 in typical PCB mounting?
When mounted on a standard PCB with 10 mm lead length, the BZW04-110 exhibits a junction-to-ambient thermal resistance (RθJA) of 100 °C/W. Its junction-to-lead resistance (RθJL) is 60 °C/W, supporting efficient heat transfer to copper pads or chassis connections. These values enable reliable operation at full 400 W surge rating only for short-duration pulses, with steady-state dissipation limited to 1 W at TL = 75 °C.
Can the BZW04-110 be used in parallel for higher surge current handling?
No - the BZW04-110 is not recommended for parallel operation due to mismatch in VBR (124–137 V range) causing uneven current sharing and potential thermal runaway. For higher IPP requirements, select a single higher-rated device such as BZW04-128 (2.0 A IPP) or consult Taiwan Semiconductor's application guidance for staged protection topologies using the BZW04-110 as a secondary clamp.
BZW04-110 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- BZW04
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 111V
- Voltage - Breakdown (Min):
- 124V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
BZW04-110 FAQ
1.How can I place an order for BZW04-110 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-110 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 BZW04-110 reliable?
The price and inventory of BZW04-110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-110 is usually 5 days.
3.What payment methods are accepted for BZW04-110?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-110 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-110?
BZW04-110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-110 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 BZW04-110?
For technical support, including BZW04-110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-110 requirements.
6.How does Aetrix verify that BZW04-110 is sourced from the original manufacturer or authorized distributors?
All BZW04-110 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 BZW04-110 meets industry standards.
7.What is the process for return or replacement of BZW04-110?
All BZW04-110 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-110, 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 BZW04-110 part is unused and in its original packaging.
Return procedure for BZW04-110:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-110 Tags
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