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Taiwan Semiconductor Corporation BZW06-19B
- Part No.:
- BZW06-19B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-19B.pdf
- Description:
- TVS DIODE 18.8VWM 39.3VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,514
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Product details
Overview
BZW06-19B from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 600W peak pulse power at 10/1000μs, with 20.9–23.1V breakdown voltage (VBR), 18.8V working stand-off voltage (VWM), and clamping voltage of 30.6V at 19.6A. It protects automotive and industrial circuits against ESD, lightning surges, and inductive switching transients.
For engineers reviewing the BZW06-19B datasheet, BZW06-19B pinout, BZW06-19B application, or BZW06-19B equivalent, key selection criteria include unidirectional/bidirectional polarity confirmation, clamping ratio (VC/VBR ≈ 1.37), thermal resistance (RθJL = 60°C/W), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The BZW06-19B operates as a silicon avalanche diode with fast response time (<5.0ns for bidirectional mode), low dynamic impedance, and stable VBR temperature coefficient (0.092%/°C). Its junction capacitance is not specified per part but falls within typical BZW06-series range (e.g., ~100–1000pF at 1MHz depending on VBR).
Designed for unclamped transient suppression, it conducts only when reverse voltage exceeds VBR, limiting downstream voltage to ≤30.6V at 19.6A (10/1000μs). It sustains 100A non-repetitive forward surge current and operates across –55°C to +175°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.8 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - Breakdown occurs within this band at 1 mA test current; defines turn-on threshold |
| VC @ IPPM | 30.6 V @ 19.6 A - Clamped voltage during 10/1000μs surge; determines maximum stress on protected IC |
| PPK | 600 W - Peak pulse power handling capability under standardized 10/1000μs waveform |
| RθJL | 60 °C/W - Junction-to-lead thermal resistance; critical for PCB pad copper design and heat dissipation |
| TJ Range | –55°C to +175°C - Enables use in under-hood automotive, industrial motor drives, and outdoor power systems |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded, RoHS-compliant, halogen-free, UL 94V-0 rated compound. Cathode band marking indicates polarity for unidirectional variants; BZW06-19B is bidirectional and lacks cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Either terminal accepts surge current; symmetric conduction enables dual-polarity protection without orientation constraints |
| Cathode | Transient current entry (bidirectional) | Same role as Anode; no functional distinction - device behaves identically regardless of DC bias direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option | BZW06-19BH variant available - validated for automotive electronics per stress-test requirements (HTOL, TC, HAST, etc.) |
| Fast response time | <5.0 ns (bidirectional) - limits voltage overshoot during nanosecond-scale ESD events (IEC 61000-4-2) |
| Low dynamic impedance | Enables tight clamping (VC/VBR ≈ 1.37) - reduces energy delivered to protected circuit during surge |
| 600W surge rating | Validated at 10/1000μs waveform - supports robust protection in 24V/48V industrial control and automotive power nets |
Applications
| Automotive Lighting Systems | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load-dump and jump-start transients in headlamp modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail (VBAT–GND) to clamp spikes up to ±60V. Use Value: Prevents latch-up or gate oxide damage in 40V-rated drivers by limiting rail voltage to ≤30.6V during 19.6A surge. | Use Scenario: Shielding digital input terminals of programmable logic controllers from field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: TVS connected between signal line and ground to shunt fast transients before reaching optocoupler input stage. Use Value: Maintains signal integrity during 4kV EFT (IEC 61000-4-4) by clamping sub-100ns edges with <5ns response. |
| DC Motor Drive Boards | Smart Building Sensor Nodes |
Use Scenario: Suppressing inductive kickback from brushed DC motors driving HVAC actuators or window lifters. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb flyback energy during MOSFET turn-off. Use Value: Eliminates need for snubber RC networks; handles 100A single-half-sine surge without degradation (IFSM = 100A). | Use Scenario: Safeguarding RS-485 transceivers and microcontroller GPIOs in battery-powered occupancy sensors exposed to building EMI. IC Role / Device Role / Timing Role: Low-leakage (IR <1μA @18.8V) TVS placed on data lines to avoid signal loading during normal operation. Use Value: Ensures <1μA standby current draw while delivering full 600W surge immunity - critical for 10-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ19CA (Bourns) | Same DO-214AA package; 19V VWM, 21.1–23.3V VBR, 33.2V VC @ 18.1A; RθJA = 50°C/W | Higher clamping voltage (+2.6V) and lower surge current rating (−1.5A); less effective for tight-margin 3.3V/5V logic rails | Select when footprint compatibility with SMB package is required and clamping margin allows. |
| P6SMB19CA (ON Semiconductor) | Identical DO-214AA package; 19V VWM, 21.1–23.3V VBR, 33.2V VC @ 18.1A; AEC-Q101 qualified | Same clamping performance as SMBJ19CA; certified for automotive use but requires requalification if substituting into existing BZW06-19B design | Prefer for new automotive designs requiring documented AEC-Q101 compliance without redesign. |
Compared with SMBJ19CA and P6SMB19CA, the BZW06-19B offers lower clamping voltage (30.6V vs. 33.2V), tighter VBR tolerance (±5% vs. ±10%), and DO-15 package - enabling higher creepage/clearance and simpler through-hole assembly in high-voltage industrial layouts.
Availability
BZW06-19B is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O protection, DC motor drive boards, and smart building sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-19B 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 is designed specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 qualification, wide VWM range (12.8–376V), and robust thermal performance up to 175°C junction temperature.
FAQ
What is the polarity configuration of BZW06-19B?
The BZW06-19B is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients without requiring specific anode/cathode orientation on the PCB. Unlike unidirectional variants (e.g., BZW06-19), it has no cathode band marking and functions identically regardless of DC bias direction - ideal for AC-coupled or floating signal lines.
Does BZW06-19B meet AEC-Q101 qualification?
The base BZW06-19B is not AEC-Q101 qualified; however, the BZW06-19BH variant (ordering code ending in "H") is fully AEC-Q101 qualified. This qualification covers high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - making BZW06-19BH suitable for automotive powertrain and body electronics where reliability is mission-critical.
What is the maximum clamping voltage of BZW06-19B under standard test conditions?
The maximum clamping voltage of BZW06-19B is 30.6 V when subjected to a 10/1000μs surge waveform at a peak pulse current of 19.6 A. This value is measured per JEDEC standards and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events - a key parameter for ensuring protected ICs remain within absolute maximum ratings.
How does the thermal performance of BZW06-19B affect PCB layout?
The BZW06-19B has a junction-to-lead thermal resistance (RθJL) of 60°C/W, meaning adequate copper pour on both leads is essential to dissipate surge energy. For reliable 600W pulse handling, minimum 10mm² copper area per lead (with 2oz copper) is recommended. Poor thermal layout risks localized overheating and premature failure during repetitive surges - especially in enclosed industrial enclosures.
Can BZW06-19B be used in place of a unidirectional TVS like BZW06-19?
Yes, BZW06-19B can replace BZW06-19 in most applications, but only if bidirectional protection is acceptable and required. The BZW06-19B has identical VWM, VBR, and VC specs, but lacks polarity marking and clamps both polarities. In DC-only circuits where reverse voltage is impossible, using BZW06-19B adds no benefit and may increase cost - whereas in AC, differential, or floating systems, it eliminates orientation errors during assembly.
BZW06-19B 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 39.3V
- Current - Peak Pulse (10/1000µs):
- 102A (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)
BZW06-19B FAQ
1.How can I place an order for BZW06-19B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-19B 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 BZW06-19B reliable?
The price and inventory of BZW06-19B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-19B is usually 5 days.
3.What payment methods are accepted for BZW06-19B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-19B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-19B?
BZW06-19B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-19B 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 BZW06-19B?
For technical support, including BZW06-19B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-19B requirements.
6.How does Aetrix verify that BZW06-19B is sourced from the original manufacturer or authorized distributors?
All BZW06-19B 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 BZW06-19B meets industry standards.
7.What is the process for return or replacement of BZW06-19B?
All BZW06-19B units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-19B, 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 BZW06-19B part is unused and in its original packaging.
Return procedure for BZW06-19B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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