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Taiwan Semiconductor Corporation BZW06-40
- Part No.:
- BZW06-40
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-40.pdf
- Description:
- TVS DIODE 40.2VWM 84VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,247
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Product details
Overview
BZW06-40 from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 44.7V minimum breakdown voltage (VBR), 40.2V working stand-off voltage (VWM), clamping voltage of 64.8V at 9.3A (10/1000μs), and operates across –55°C to +175°C junction temperature range - deployed in automotive lighting control modules and industrial PLC I/O protection circuits.
For engineers reviewing the BZW06-40 datasheet, BZW06-40 pinout, BZW06-40 application, or BZW06-40 equivalent, this page delivers verified electrical parameters, DO-204AC package details, AEC-Q101 qualification status, clamping performance curves, and direct alternatives for ESD and inductive switching surge protection design.
Technical Context
The BZW06-40 operates as a silicon avalanche diode with fast response time (<1.0ps from 0V to VBR) and low dynamic impedance, enabling precise voltage clamping during transient events. Its unidirectional polarity and cathode-band marking define anode-to-cathode conduction path under reverse bias surge conditions.
Thermal performance is characterized by RθJL = 60°C/W and RθJA = 100°C/W (L = 10mm), supporting reliable operation up to TJ = 175°C. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for high-reliability PCB mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40.2 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets safe DC rail margin. |
| VBR (min) | 44.7 V @ 1 mA - Minimum avalanche initiation voltage; ensures predictable turn-on during transients. |
| VC @ IPPM | 64.8 V @ 9.3 A (10/1000μs) - Clamped voltage during 600W surge; defines worst-case protected node voltage. |
| PPK | 600 W - Peak pulse power handling capability per single non-repetitive 10/1000μs waveform. |
| IR @ VWM | <1 μA - Reverse leakage current at rated stand-off voltage; minimizes standby power loss. |
| TJ Range | –55°C to +175°C - Extended junction temperature range supports under-hood automotive and industrial environments. |
| Package | DO-204AC (DO-15) - Axial-leaded through-hole package with tin-plated leads compliant to J-STD-002 solderability. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, unidirectional configuration with cathode band marking. Lead length 9.5 mm (0.375"), weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal under forward bias; tied to lower-potential side of protected circuit. | Connects to ground or return path; defines reference for clamping action during reverse surge. |
| Cathode (banded end) | Current exit terminal under reverse avalanche; connected to protected line or supply rail. | Receives transient energy; clamps voltage to ≤64.8 V when surge exceeds 44.7 V. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | BZW06-40H variant meets automotive-grade reliability testing for engine control and lighting systems. |
| Clamping ratio VC/VBR | 1.45 (64.8 V / 44.7 V) - Low ratio enables tighter voltage margin between protection threshold and IC absolute maximum rating. |
| Response time | <1.0 ps - Enables sub-nanosecond reaction to ESD and fast-rising transients, critical for high-speed interface protection. |
| Low dynamic impedance | Ensures stable clamping voltage across varying surge currents, reducing voltage overshoot during multi-pulse events. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive; suitable for environmentally regulated industrial and automotive production. |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects MOSFET gate drivers and microcontroller GPIOs from load-dump and inductive kickback in 12V/24V LED headlamp circuits. IC Role / Device Role: Primary TVS clamp on power input and PWM signal lines upstream of driver ICs. Use Value: Limits transient voltage to ≤64.8 V, preventing latch-up or gate oxide damage in 65V-rated logic-level MOSFETs. |
Use Scenario: Shields 24V digital input channels from field-wiring EFT bursts and relay coil flyback in factory automation controllers. IC Role / Device Role: Front-end surge suppressor placed before optocoupler input and series current-limiting resistor. Use Value: Withstands 600W surges while maintaining <1 μA leakage at 40.2V, preserving input threshold accuracy. |
| DC Power Rail Surge Suppression | ESD Protection for Sensor Interface Lines |
Use Scenario: Installed on 48V telecom or PoE-powered equipment DC inputs to absorb lightning-induced surges. IC Role / Device Role: Standoff protector parallel to bulk capacitance, absorbing energy before downstream DC-DC converters. Use Value: Delivers 600W peak power handling with 60°C/W junction-to-lead thermal resistance for sustained surge duty cycles. |
Use Scenario: Placed on analog sensor lines (e.g., RTD, thermocouple) entering industrial data acquisition modules. IC Role / Device Role: Low-capacitance transient suppressor minimizing signal distortion on millivolt-level inputs. Use Value: Junction capacitance <100 pF (typ.) at 1 MHz ensures minimal loading on high-impedance sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40A (Bourns) | Same DO-214AA package; 40V VWM, 64.5V VC @ 9.3A; 600W rating; no AEC-Q101 option. | Surface-mount only; requires rework of layout; lacks automotive qualification path. | Select when board space is constrained and AEC-Q101 not required. |
| P6KE40A (ON Semiconductor) | DO-15 package; 40V VWM, 64.3V VC @ 9.3A; 600W rating; AEC-Q101 qualified (P6KE40AH). | Identical mechanical form factor and pinout; same thermal derating curve; fully interchangeable in legacy designs. | Preferred drop-in replacement where second-source assurance is needed without layout change. |
Compared with SMBJ40A and P6KE40A, the BZW06-40 offers identical DO-204AC packaging and clamping performance but distinguishes itself via Taiwan Semiconductor's halogen-free compound and JESD201 Class 2 whisker resistance - critical for long-life automotive harness assemblies and high-reliability industrial field devices.
Availability
BZW06-40 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and 48V DC power rail surge suppression requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for BZW06-40 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 high-reliability protection devices and power management components.
The BZW06 series was developed specifically for robust transient suppression in harsh-environment applications including automotive, industrial automation, and telecommunications infrastructure - emphasizing AEC-Q101 compliance, thermal resilience, and repeatable clamping behavior.
FAQ
What is the maximum clamping voltage of the BZW06-40 under standard test conditions?
The BZW06-40 has a maximum clamping voltage (VC) of 64.8 V at a peak pulse current (IPPM) of 9.3 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and reflects worst-case voltage seen by downstream circuitry during a 600W transient event. The BZW06-40 maintains this clamping performance across its full operating temperature range.
Is the BZW06-40 suitable for automotive applications?
Yes - the BZW06-40H variant is AEC-Q101 qualified and designed for automotive use, including engine control units, body electronics, and LED lighting systems. The base BZW06-40 meets all electrical and thermal specifications required for under-hood environments, with a junction temperature range of –55°C to +175°C and JESD201 Class 2 whisker resistance.
What is the difference between BZW06-40 and BZW06-40B?
The BZW06-40 is unidirectional, while BZW06-40B is bidirectional - meaning the latter conducts in both directions and lacks polarity marking. Both share identical VWM (40.2 V), VBR (44.7–49.4 V), and VC (64.8 V) ratings, but BZW06-40B is used where AC-coupled or dual-polarity signal lines require symmetrical clamping. The BZW06-40 must be oriented correctly on PCB with cathode band toward the protected line.
Does the BZW06-40 have lead-free and RoHS-compliant construction?
Yes - the BZW06-40 uses pure tin-plated leads compliant with J-STD-002 solderability requirements and is RoHS compliant per EU Directive 2011/65/EU. It is also halogen-free in accordance with IEC 61249-2-21, with molding compound meeting UL 94V-0 flammability rating.
What is the thermal resistance specification for the BZW06-40 in typical PCB mounting?
The BZW06-40 has a junction-to-lead thermal resistance (RθJL) of 60°C/W and junction-to-ambient resistance (RθJA) of 100°C/W when mounted with 9.5 mm lead length. These values assume standard FR-4 PCB with minimal copper pour; adding thermal relief pads or copper planes reduces RθJA and improves surge endurance during repetitive events.
BZW06-40 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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 84V
- Current - Peak Pulse (10/1000µs):
- 48A (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)
BZW06-40 FAQ
1.How can I place an order for BZW06-40 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-40 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 BZW06-40 reliable?
The price and inventory of BZW06-40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-40 is usually 5 days.
3.What payment methods are accepted for BZW06-40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-40?
BZW06-40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-40 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 BZW06-40?
For technical support, including BZW06-40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-40 requirements.
6.How does Aetrix verify that BZW06-40 is sourced from the original manufacturer or authorized distributors?
All BZW06-40 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 BZW06-40 meets industry standards.
7.What is the process for return or replacement of BZW06-40?
All BZW06-40 units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-40, 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 BZW06-40 part is unused and in its original packaging.
Return procedure for BZW06-40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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