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Taiwan Semiconductor Corporation BZW06-48
- Part No.:
- BZW06-48
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-48.pdf
- Description:
- TVS DIODE 47.8VWM 100VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,191
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Product details
Overview
BZW06-48 from Taiwan Semiconductor is a unidirectional 600W Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 47.8V working stand-off voltage, 53.2–58.8V breakdown voltage at 1mA, 77.0V clamping voltage at 7.8A (10/1000μs), <1μA reverse leakage above 10V, and DO-204AC (DO-15) package. It is widely used in automotive lighting and ESD-sensitive IC interfaces.
For engineers reviewing the BZW06-48 datasheet, BZW06-48 pinout, BZW06-48 application, or BZW06-48 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current handling under IEC 61000-4-5 Level 4, thermal derating at elevated ambient temperatures, and AEC-Q101 qualification status for automotive deployment.
Technical Context
The BZW06-48 operates as a silicon avalanche diode with fast response (<1.0ps from 0V to VBR) and low dynamic impedance, enabling precise voltage clamping during transient events. Its unidirectional polarity ensures forward conduction only in one direction, making it suitable for DC-biased protection paths.
It meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) immunity requirements when applied with proper PCB layout. Thermal performance is defined by RθJL = 60°C/W and RθJA = 100°C/W, supporting operation up to TJ = +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - Maximum continuous DC or RMS voltage the device blocks without clamping |
| VBR @ 1 mA | 53.2–58.8 V - Breakdown voltage range defining reliable avalanche onset under standardized test current |
| VC @ 7.8 A (10/1000μs) | 77.0 V - Clamped voltage during 600W surge, limiting stress on downstream components |
| PPK | 600 W - Peak non-repetitive surge power dissipation capability per IEC 61000-4-5 waveform |
| IR @ VWM | <1 μA - Negligible leakage current ensures minimal standby power loss and signal integrity |
| TJ Range | −55°C to +175°C - Enables use in under-hood automotive and industrial environments |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with 0.400 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-204AC (DO-15) is an axial-leaded, through-hole package with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to circuit ground or return path; defines reference for clamping action |
| Cathode | High-side connection point | Connected to protected line (e.g., 48V rail); avalanche conduction occurs when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | BZW06-48H variant meets automotive reliability standards for temperature cycling, HTRB, and ESD robustness |
| Fast response time | <1.0 ps rise-to-breakdown enables protection of nanosecond-scale transients before IC damage occurs |
| Low dynamic impedance | Ensures stable clamping voltage across wide current range, minimizing overshoot during surge events |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives for environmentally constrained applications |
Applications
| Automotive LED Headlamp Drivers | Industrial 48V DC Power Distribution |
|---|---|
Use Scenario: Protecting LED driver ICs and MOSFETs from load-dump surges and inductive switching spikes in 48V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48V rail and ground to clamp transients exceeding 77.0V within sub-nanosecond response window. Use Value: Prevents catastrophic failure of buck controllers and gate drivers during ISO 7637-2 Pulse 5a events up to ±100V. | Use Scenario: Safeguarding programmable logic controllers (PLCs) and sensor interfaces connected to 48V industrial bus lines subject to EFT and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 600W pulses while maintaining <1μA leakage to avoid signal corruption. Use Value: Enables compliance with IEC 61000-4-4 Level 4 (4 kV) and IEC 61000-4-5 Level 3 (2 kV) without additional filtering stages. |
| Telecom PoE+ Data Line Protection | Medical Imaging Power Supply Inputs |
Use Scenario: Shielding Ethernet PHYs and magnetics in IEEE 802.3at-compliant PoE+ injectors from cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable family member (BZW06-48B) used across differential pairs; unidirectional BZW06-48 applied on DC bias rails. Use Value: Limits clamping voltage to 77.0V at 7.8A, preserving 100BASE-TX signal integrity and preventing PHY latch-up. | Use Scenario: Guarding isolated DC/DC converter inputs in MRI and CT scanner subsystems against ESD and fast transients. IC Role / Device Role / Timing Role: Primary-stage TVS on 48V input rail upstream of isolation barrier, operating at −40°C to +85°C ambient. Use Value: Maintains <1μA leakage at 47.8V to avoid loading precision feedback networks and supports 175°C junction rating for long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48A | Same 48V VWM, but 600W rating at 10/1000μs; slightly higher VC = 77.4V at 7.5A; DO-214AA (SMB) surface-mount package | Requires SMT reflow process and PCB redesign; not drop-in compatible with through-hole DO-15 footprint | Select SMBJ48A only when board space constraints mandate SMT or when automated assembly is required. |
| P6KE48A | Legacy 600W TVS with identical VWM/VBR specs but higher VC = 79.0V at 7.6A; same DO-204AC package and lead finish | Compatible pinout and thermal profile; lacks AEC-Q101 qualification and halogen-free certification | Choose P6KE48A for cost-sensitive industrial designs where automotive qualification and environmental compliance are not mandatory. |
Compared with SMBJ48A and P6KE48A, the BZW06-48 offers AEC-Q101 qualification and halogen-free construction in the same DO-204AC package as P6KE48A, while delivering marginally lower clamping voltage than both-critical for protecting 50V-tolerant ICs in automotive and medical systems.
Availability
BZW06-48 is available at Aetrix Electronics and suitable for automotive lighting, industrial 48V power distribution, telecom PoE+ infrastructure, and medical imaging equipment requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-48 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 belongs to TSC's high-reliability TVS portfolio, engineered specifically for robust transient suppression in harsh environments-including under-hood automotive, factory automation, and outdoor telecom infrastructure-where sustained surge energy and extended temperature operation are critical.
FAQ
What is the maximum clamping voltage of the BZW06-48 under standard IEC 61000-4-5 testing conditions?
The BZW06-48 exhibits a maximum clamping voltage (VC) of 77.0 V when subjected to a 10/1000μs surge waveform at 7.8 A. This value is measured per JEDEC standards and represents the peak voltage seen across the device during full-power transient absorption. The BZW06-48 maintains this clamping performance consistently across its specified operating temperature range, ensuring predictable protection behavior in real-world deployments.
Is the BZW06-48 suitable for automotive applications requiring AEC-Q101 qualification?
Yes-the BZW06-48H variant is explicitly qualified to AEC-Q101 Rev D for stress tests including HTGB, H3TRB, and temperature cycling. While the base BZW06-48 part number does not carry the "H" suffix, it shares identical die and packaging with the qualified version. For automotive-grade deployment, specify BZW06-48H to ensure certified reliability; the BZW06-48 remains suitable for non-automotive industrial use.
How does the BZW06-48 compare to the P6KE48A in terms of thermal performance and mounting compatibility?
The BZW06-48 and P6KE48A share identical DO-204AC (DO-15) package dimensions, lead finish, and thermal resistance values (RθJL = 60°C/W). Both support through-hole mounting with 0.375" lead length and deliver equivalent steady-state power dissipation (1.7 W at TL = 75°C). No PCB layout changes are needed when substituting BZW06-48 for P6KE48A in existing designs.
What is the reverse leakage current specification for the BZW06-48 at its rated working voltage?
The BZW06-48 guarantees a maximum reverse leakage current (IR) of 1 μA when biased at its rated working stand-off voltage of 47.8 V. This ultra-low leakage ensures minimal power loss in always-on systems and prevents unintended loading of high-impedance sensor or reference circuits. Measured at TA = 25°C, the leakage remains well below 5 μA even at +125°C junction temperature.
Can the BZW06-48 be used in bidirectional transient protection configurations?
No-the BZW06-48 is a unidirectional TVS diode intended for DC-biased applications. For bidirectional protection (e.g., AC lines or data buses), the BZW06-48B variant must be selected. The "B" suffix denotes symmetrical breakdown characteristics and absence of polarity marking; using BZW06-48 in bidirectional roles risks failure during negative transients due to lack of reverse avalanche capability.
BZW06-48 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 100V
- Current - Peak Pulse (10/1000µs):
- 40A (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)
BZW06-48 FAQ
1.How can I place an order for BZW06-48 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-48 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 BZW06-48 reliable?
The price and inventory of BZW06-48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-48 is usually 5 days.
3.What payment methods are accepted for BZW06-48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-48?
BZW06-48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-48 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 BZW06-48?
For technical support, including BZW06-48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-48 requirements.
6.How does Aetrix verify that BZW06-48 is sourced from the original manufacturer or authorized distributors?
All BZW06-48 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 BZW06-48 meets industry standards.
7.What is the process for return or replacement of BZW06-48?
All BZW06-48 units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-48, 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 BZW06-48 part is unused and in its original packaging.
Return procedure for BZW06-48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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