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Taiwan Semiconductor Corporation BZW06-128H
- Part No.:
- BZW06-128H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-128H.pdf
- Description:
- 600W, 150V, -%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,334
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Product details
Overview
BZW06-128H from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode with 128V working stand-off voltage, 143–158V breakdown range at 1mA, and 207V clamping voltage at 2.9A (10/1000μs). It features AEC-Q101 qualification, low dynamic impedance, and sub-1ps response time-designed for automotive ECU power rail protection against load dump and ISO 7637-2 transients.
For engineers reviewing the BZW06-128H datasheet, BZW06-128H pinout, BZW06-128H application, or BZW06-128H equivalent, key selection criteria include its DO-204AC (DO-15) package, 175°C max junction temperature, 128V VWM rating, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
The BZW06-128H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 143–158V breakdown threshold. Its clamping action limits transient-induced voltage to ≤207V at 2.9A (10/1000μs), with thermal resistance RθJL = 60°C/W ensuring robust pulse energy dissipation.
It exhibits <1μA leakage at 128V, 0.108%/°C temperature coefficient of VBR, and meets JESD201 Class 2 whisker resistance. The device is rated for -55°C to +175°C operating junction temperature and supports 100A non-repetitive forward surge current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Maximum continuous reverse operating voltage before conduction begins; defines safe system rail margin. |
| VBR @ 1 mA | 143–158 V - Breakdown voltage range confirming reliable turn-on threshold across production lot. |
| VC @ 2.9 A (10/1000μs) | 207 V - Clamped voltage during standardized surge; determines maximum stress on downstream ICs. |
| PPK | 600 W - Peak pulse power handling capability; enables protection against ISO 7637-2 Pulse 5a/b load dump events. |
| TJMAX | +175 °C - Maximum junction temperature; supports under-hood placement in automotive engine compartments. |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance; allows accurate thermal design for PCB copper pad layout and heatsinking. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability per stress test requirements including HTOL, TCT, and HTRB. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return plane; must handle full 2.9A transient current without trace fusing. |
| Cathode | Reverse-biased input / Clamped output node | Connected to protected line (e.g., 12V battery rail); voltage clamped to ≤207V during surge. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per JEDEC stress test standards-enables direct use in ECU, BCM, and ADAS modules. |
| 600W peak pulse power (10/1000μs) | Supports IEC 61000-4-5 Level 4 (4kV) and ISO 7637-2 Pulse 5a (100V, 100ms) compliance without derating. |
| Clamping voltage ≤207V at 2.9A | Ensures protected 12V microcontrollers and CAN transceivers remain below absolute maximum ratings during transients. |
| Leakage current <1 μA at 128V | Minimizes standby power loss in always-on automotive systems such as telematics and alarm controllers. |
| Response time <1 ps (unidirectional) | Faster than typical ESD events; provides immunity to fast-rising transients from relay switching or alternator ripple. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Power Input Stage |
|---|---|
|
Use Scenario: Protection of 12V supply rail against load dump transients up to 120V/400ms per ISO 7637-2 Pulse 5b. IC Role / Device Role: Primary overvoltage clamp placed between battery feed and DC-DC converter input. Use Value: Limits rail voltage to ≤207V, preventing damage to 36V-rated buck controllers and 5V LDOs downstream. |
Use Scenario: Guarding 24V industrial power input against inductive switching spikes from solenoid valves and contactors. IC Role / Device Role: Standoff protector upstream of TVS arrays and MOVs in multi-stage surge suppression circuits. Use Value: Absorbs initial 600W surge energy while maintaining <1μA leakage-preserving accuracy of analog sensor front-ends. |
| LED Headlamp Driver Module | Automotive Body Control Module (BCM) |
|
Use Scenario: Safeguarding constant-current LED drivers from alternator ripple and jump-start voltage surges. IC Role / Device Role: Unidirectional clamping diode on high-side switch input, referenced to chassis ground. Use Value: Withstands 175°C junction temperature and maintains stable VBR drift (<0.108%/°C), ensuring consistent protection across ambient extremes. |
Use Scenario: Securing LIN bus power pins and window motor driver inputs against EFT bursts (IEC 61000-4-4). IC Role / Device Role: Fast-response TVS on 12V auxiliary rail feeding microcontroller I/O and gate drivers. Use Value: Sub-1ps turn-on ensures clamping before EFT edge (5ns rise time) reaches sensitive logic, reducing bit errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120A | 120V VWM, 133–147V VBR, 193V VC @ 3.1A; same DO-214AA package but lower surge rating (600W identical, but lower IPPM derating above 100°C) | Not AEC-Q101 qualified; suitable for industrial/commercial, not automotive-critical rails | Select SMBJ120A only if AEC-Q101 is not required and board space permits SMB footprint. |
| 1.5KE130A | 130V VWM, 144–156V VBR, 219V VC @ 2.7A; DO-201AD package, higher thermal mass but slower response (~1ns) | Larger footprint, no AEC-Q101 qualification, higher clamping voltage reduces margin for 3.3V/5V ICs | Prefer 1.5KE130A only for cost-sensitive non-automotive designs where PCB area and thermal mass outweigh speed needs. |
Compared with SMBJ120A and 1.5KE130A, the BZW06-128H delivers tighter VWM/VBR correlation (128V/143–158V), AEC-Q101 validation, and superior thermal performance (RθJL = 60°C/W vs. ≥80°C/W), making it optimal for space-constrained, high-reliability automotive nodes.
Availability
BZW06-128H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC power inputs, and LED headlamp driver modules requiring stable component supply with AEC-Q101 assurance and DO-15 through-hole compatibility.
Supply support for BZW06-128H 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-compliant production lines.
The BZW06 series was engineered specifically for automotive-grade transient suppression-balancing high surge capacity, tight voltage tolerances, and extended temperature operation in engine bay and chassis-mounted electronics.
FAQ
What is the polarity configuration of the BZW06-128H?
The BZW06-128H is a unidirectional TVS diode, with cathode marked by a band on the DO-204AC (DO-15) package body. It conducts in forward bias like a standard diode and clamps reverse transients above its breakdown voltage. This polarity ensures correct orientation on 12V battery-fed rails where the cathode connects to the protected line and anode to ground-critical for proper operation of the BZW06-128H in automotive applications.
Does the BZW06-128H meet AEC-Q101 requirements for automotive use?
Yes, the "H" suffix in BZW06-128H explicitly denotes AEC-Q101 qualification. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and high-temperature reverse bias (HTRB), validating reliability for under-hood automotive electronics. This certification is documented in Taiwan Semiconductor's official qualification report for the BZW06-128H and distinguishes it from non-H variants.
What is the maximum clamping voltage of the BZW06-128H under standard test conditions?
The BZW06-128H has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000μs surge waveform at 2.9 A. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during transient events-ensuring downstream components like microcontrollers and CAN transceivers remain within safe operating ranges.
How does the BZW06-128H compare to bidirectional TVS diodes in the same series?
The BZW06-128H is unidirectional and optimized for DC power rail protection where polarity is fixed (e.g., 12V battery lines), offering faster response (<1 ps) and lower leakage (<1 μA at 128V) than its bidirectional counterpart BZW06-128BH. Bidirectional versions are intended for AC or data-line applications like LIN or CAN, where voltage swings both polarities-making the BZW06-128H the correct choice for asymmetric DC protection.
What is the thermal resistance specification for the BZW06-128H, and how does it affect PCB layout?
The BZW06-128H has a junction-to-lead thermal resistance (RθJL) of 60°C/W, measured with 9.5mm lead length. This value guides PCB copper pour sizing: for sustained surge duty, minimum 25 mm² of 2-oz copper connected to each lead is recommended. Exceeding this thermal design margin risks exceeding the 175°C TJMAX during repetitive transients-so proper thermal relief is essential for reliable BZW06-128H operation.
BZW06-128H 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
BZW06-128H FAQ
1.How can I place an order for BZW06-128H through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-128H 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 BZW06-128H reliable?
The price and inventory of BZW06-128H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-128H is usually 5 days.
3.What payment methods are accepted for BZW06-128H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-128H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-128H?
BZW06-128H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-128H 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 BZW06-128H?
For technical support, including BZW06-128H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-128H requirements.
6.How does Aetrix verify that BZW06-128H is sourced from the original manufacturer or authorized distributors?
All BZW06-128H 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 BZW06-128H meets industry standards.
7.What is the process for return or replacement of BZW06-128H?
All BZW06-128H units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-128H, 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 BZW06-128H part is unused and in its original packaging.
Return procedure for BZW06-128H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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