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Taiwan Semiconductor Corporation BZW06-26B
- Part No.:
- BZW06-26B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-26B.pdf
- Description:
- TVS DIODE 25.6VWM 53.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,835
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Product details
Overview
BZW06-26B 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 28.5V minimum breakdown voltage (VBR), 25.6V working stand-off voltage (VWM), and 41.5V clamping voltage (VC) at 14.5A. It protects automotive and industrial control circuits against ESD, EFT, and inductive switching transients.
For engineers reviewing the BZW06-26B datasheet, BZW06-26B pinout, BZW06-26B application, or BZW06-26B equivalent, key selection criteria include clamping performance under 10/1000μs surge, bidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJL = 60°C/W), and DO-15 mechanical compatibility in high-reliability PCB layouts.
Technical Context
The BZW06-26B operates as a silicon avalanche diode with symmetrical bidirectional clamping behavior, enabling protection of AC-coupled or differential signal lines without polarity constraints. Its low dynamic impedance and sub-5ns response time ensure effective suppression of fast transients including IEC 61000-4-4 EFT bursts and IEC 61000-4-2 ESD events.
Designed for junction temperatures up to +175°C and compliant with JESD201 Class 2 whisker testing, the device supports high-temperature automotive under-hood applications. Its 60°C/W junction-to-lead thermal resistance enables reliable power dissipation when mounted on standard PCB copper land patterns per JEDEC MS-013.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VBR (min) | 28.5 V @ 1 mA - Minimum voltage at which avalanche conduction begins reliably |
| VC @ IPPM | 41.5 V @ 14.5 A (10/1000μs) - Clamped voltage during worst-case surge, defining protected circuit stress |
| PPK | 600 W - Peak non-repetitive surge power handling capability per single 1ms pulse |
| RθJL | 60 °C/W - Thermal resistance from junction to lead, critical for PCB copper pad sizing and thermal design |
| TJ max | +175 °C - Maximum allowable junction temperature, supporting under-hood automotive use |
| IR @ VWM | <1 μA - Low leakage ensures minimal standby current impact on sensitive analog or battery-powered circuits |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded, RoHS-compliant, halogen-free, UL 94V-0 rated compound. Cathode band marking applies only to unidirectional variants; BZW06-26B is bidirectional and has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | No functional polarity - either lead serves as input/output for transient clamping in AC or differential paths |
| Lead 1 / Lead 2 | Thermal and electrical interface | Both leads conduct surge current and dissipate heat; require equal PCB copper area for thermal balance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan |
| Clamping voltage ≤41.5 V at 14.5 A | Ensures downstream ICs with 30–36 V absolute maximum ratings remain within safe operating limits during surge |
| Response time <5.0 ns | Fast enough to limit sub-microsecond ESD events before damage occurs to CMOS inputs or communication interfaces |
| Low dynamic impedance | Minimizes voltage overshoot during high-di/dt transients, improving protection margin for fast-rising spikes |
| RoHS and halogen-free compliance | Meets IPC-J-STD-609 and IEC 61249-2-21 requirements for green electronics manufacturing |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and LED driver ICs in headlamp modules subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary TVS clamp on power rail and signal lines to absorb 600W transients without failure. Use Value: Maintains VC below 42 V during 10/1000μs surges, safeguarding 36 V-rated automotive ICs per AEC-Q100 stress limits. | Use Scenario: Shielding digital input terminals of programmable logic controllers from inductive kickback caused by solenoid valve switching. IC Role / Device Role: Bidirectional clamping element across 24 V DC input channels to prevent latch-up or gate oxide rupture. Use Value: Symmetrical VBR (28.5–31.5 V) and low leakage (<1 μA) preserve signal integrity while blocking ±1 kV EFT bursts. |
| USB-C Power Delivery Interface | Smart Meter Communication Port |
Use Scenario: Safeguarding USB-C CC and VCONN lines against ESD events during hot-plug insertion in portable chargers. IC Role / Device Role: Secondary-level TVS placed after common-mode chokes to suppress differential-mode transients. Use Value: Sub-5 ns response and 41.5 V clamping prevent damage to USB PD controllers with 30 V absolute max ratings. | Use Scenario: Protecting RS-485 transceivers in utility smart meters exposed to lightning-induced surges on long outdoor data lines. IC Role / Device Role: Line-to-line and line-to-ground clamping device on differential bus pairs. Use Value: 600W surge rating and 175°C TJ max support operation in sealed, thermally constrained meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA | Same DO-214AA package; 26 V nominal VBR, 42.1 V VC @ 14.3 A; lower PPK (600W same), but RθJA = 110°C/W vs. BZW06-26B's 100°C/W | Preferred where surface-mount layout is mandatory; less suitable for high-ambient thermal environments without heatsinking | Select SMBJ26CA only if SMT assembly is required and board space prohibits axial DO-15 placement. |
| P6KE27CA | DO-15 package like BZW06-26B; 27 V nominal VBR, 43.5 V VC @ 13.8 A; 600W rating, but TJ max = +150°C and no AEC-Q101 variant | Acceptable for industrial use but not certified for automotive qualification programs requiring AEC-Q101 traceability | Choose P6KE27CA for cost-sensitive non-automotive designs where AEC-Q101 is not mandated. |
Compared with SMBJ26CA and P6KE27CA, the BZW06-26B offers superior thermal performance (RθJL = 60°C/W), AEC-Q101 qualification path, and tighter VBR tolerance (28.5–31.5 V), making it optimal for thermally demanding automotive and industrial control applications requiring long-term reliability validation.
Availability
BZW06-26B is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O modules, USB-C power delivery accessories, and smart meter communication ports requiring stable component supply and long-lifecycle support.
Supply support for BZW06-26B 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 TVS diodes, rectifiers, MOSFETs, and bipolar transistors since 1979.
The BZW06 series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing AEC-Q101 readiness, high-temperature operation, and consistent clamping performance across wide production lots.
FAQ
What is the polarity configuration of the BZW06-26B?
The BZW06-26B is a bidirectional TVS diode with symmetrical avalanche characteristics - neither lead is designated anode or cathode. This allows it to clamp positive and negative transients equally across AC-coupled or differential signal paths without regard to orientation during PCB placement. Unlike unidirectional variants such as BZW06-26, the BZW06-26B has no cathode band marking and must be used in applications requiring dual-polarity protection. Its VBR range (28.5–31.5 V) applies identically in both directions.
Does the BZW06-26B meet AEC-Q101 qualification standards?
The BZW06-26B itself is not automatically AEC-Q101 qualified; however, the BZW06-26BH variant (with "H" suffix) is explicitly qualified per AEC-Q101 Rev D. The base BZW06-26B shares identical die, package, and process flow but lacks the full stress-test documentation package required for certification. For automotive applications requiring formal qualification evidence, specify BZW06-26BH. The BZW06-26B remains suitable for industrial and commercial designs where AEC-Q101 is not mandated.
What is the maximum clamping voltage of the BZW06-26B under standard test conditions?
The maximum clamping voltage (VC) of the BZW06-26B is 41.5 V when subjected to a 10/1000μs waveform at a peak pulse current (IPPM) of 14.5 A. This value is measured per IEC 61000-4-5 Annex A and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. At lower currents (e.g., 1 A), VC drops to approximately 33 V, reflecting its low dynamic impedance characteristic essential for protecting 24–36 V system components.
How does the thermal performance of the BZW06-26B compare to similar DO-15 TVS diodes?
The BZW06-26B achieves a junction-to-lead thermal resistance (RθJL) of 60°C/W, significantly better than typical DO-15 TVS devices (often 75–90°C/W). This enables higher sustained surge duty cycles and improved reliability in high-ambient environments such as engine compartments. Its RθJA of 100°C/W assumes 10 mm lead length and standard FR-4 PCB mounting - performance improves with increased copper area or thermal vias. This thermal advantage directly supports AEC-Q101 qualification requirements for thermal stability.
Can the BZW06-26B replace the P6KE26CA in existing designs?
The BZW06-26B is mechanically compatible with the P6KE26CA (both use DO-204AC/DO-15 package), but direct replacement requires verification of VBR and VC alignment: BZW06-26B specifies 28.5–31.5 V VBR and 41.5 V VC, versus P6KE26CA's 28.9–31.9 V and 42.1 V. While functionally similar, the BZW06-26B offers tighter parameter distribution and optional AEC-Q101 qualification (via -26BH). No PCB changes are needed, but system-level surge testing is recommended to confirm equivalent protection margin.
BZW06-26B 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 75A (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)
BZW06-26B FAQ
1.How can I place an order for BZW06-26B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-26B 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 BZW06-26B reliable?
The price and inventory of BZW06-26B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-26B is usually 5 days.
3.What payment methods are accepted for BZW06-26B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-26B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-26B?
BZW06-26B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-26B 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 BZW06-26B?
For technical support, including BZW06-26B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-26B requirements.
6.How does Aetrix verify that BZW06-26B is sourced from the original manufacturer or authorized distributors?
All BZW06-26B 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 BZW06-26B meets industry standards.
7.What is the process for return or replacement of BZW06-26B?
All BZW06-26B units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-26B, 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 BZW06-26B part is unused and in its original packaging.
Return procedure for BZW06-26B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW06-26B Tags
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