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Taiwan Semiconductor Corporation BZW06-33
- Part No.:
- BZW06-33
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-33.pdf
- Description:
- TVS DIODE 33.3VWM 69.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,014
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Product details
Overview
BZW06-33 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 33.3V working stand-off voltage, 37.1–47.0V breakdown range at 1mA, 53.9V clamping voltage at 11.1A (10/1000μs), and DO-204AC (DO-15) package. It protects microcontroller power inputs against ESD and inductive switching transients in 12V/24V systems.
For engineers reviewing the BZW06-33 datasheet, BZW06-33 pinout, BZW06-33 application, or BZW06-33 equivalent, key selection criteria include clamping voltage margin vs. IC absolute maximum ratings, peak pulse current capability under 10/1000μs waveform, thermal derating above 75°C ambient, and AEC-Q101 qualification status for automotive use.
Technical Context
The BZW06-33 operates as a unidirectional avalanche diode with fast response (<1.0ps from 0V to VBR) and low dynamic impedance to limit transient overvoltage before sensitive downstream circuitry is stressed. Its junction-to-lead thermal resistance of 60°C/W enables effective heat dissipation during repetitive surges when mounted on PCB copper pours.
It complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump) immunity requirements when used with appropriate series impedance. The device exhibits a positive temperature coefficient of VBR (0.100%/°C), ensuring stable clamping behavior across its -55°C to +175°C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - Maximum continuous reverse operating voltage; must exceed system nominal rail (e.g., 24V or 28V) with margin |
| VBR @ 1 mA | 37.1–47.0 V - Breakdown voltage range defining reliable avalanche onset; ensures predictable clamping initiation |
| VC @ 11.1 A (10/1000μs) | 53.9 V - Clamping voltage under standard surge test; determines maximum stress on protected IC's VDD pin |
| PPK | 600 W - Peak pulse power rating at TA = 25°C; defines single-event surge energy handling capacity |
| IR @ VWM | <1 μA - Reverse leakage at working voltage; negligible power loss and no measurable loading on supply rail |
| TJ max | +175°C - Maximum junction temperature; supports operation in engine bay or industrial enclosures without derating |
| 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) axial-leaded package with cathode band marking for unidirectional polarity. Leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; establishes reference for clamping action |
| Cathode | Protected line input | Connected to power rail (e.g., 24V supply) being safeguarded; conducts surge current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | BZW06-33H variant meets automotive reliability standards for under-hood and powertrain applications |
| Clamping voltage ≤53.9 V at 11.1 A | Ensures protected ICs with 60V absolute maximum rating remain within safe operating limits during surge events |
| Response time <1.0 ps | Activates faster than most semiconductor switching transients, minimizing voltage overshoot before conduction |
| Low dynamic impedance | Maintains tight clamping window across full surge current range, improving protection consistency |
| RoHS & halogen-free compliant | Fulfills environmental compliance requirements for EU, China RoHS, and JEITA-MITI standards |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 24V battery-supplied ECUs exposed to ISO 7637-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, placed upstream of DC-DC converter input. Use Value: Limits transient voltage to ≤53.9V, preventing damage to 40V-rated buck controller ICs and enabling robust 12V/24V system design. | Use Scenario: Digital input modules receiving 24V sensor signals in factory automation environments. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated digital input channel before optocoupler or level-shifter. Use Value: Absorbs IEC 61000-4-4 EFT bursts up to 4kV without latch-up, preserving signal integrity and reducing false triggering. |
| LED Driver Supply Protection | Telecom Power Interface |
Use Scenario: Constant-current LED drivers powered from 36V industrial bus with inductive switching noise. IC Role / Device Role / Timing Role: Bulk TVS on driver IC VCC pin to suppress flyback spikes from nearby relay coils. Use Value: Withstands 100A IFSM surge current and clamps at 53.9V, protecting 60V-rated LED driver MOSFETs and gate drivers. | Use Scenario: 48V PoE-powered network equipment interfaces subject to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on DC input after primary MOV/GDT stage, providing precise clamping for downstream DC-DC ICs. Use Value: Delivers 600W peak power handling with <1μA leakage, minimizing standby power loss while meeting IEC 61000-4-5 Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A | Same DO-214AA package; lower PPK (600W same), but higher VC (64.3V @ 9.3A); no AEC-Q101 option | Less margin for 60V-rated ICs; unsuitable for automotive AEC-Q101-requiring designs | Select SMBJ33A only for cost-sensitive non-automotive applications where 64.3V clamping is acceptable |
| P6KE33A | DO-15 package like BZW06-33, but lower PPK (600W same), higher VC (64.3V @ 9.3A), and wider VBR tolerance (31.4–34.7V) | Reduced clamping precision and less headroom for 60V ICs; not AEC-Q101 qualified | Prefer BZW06-33 where tighter VBR control (37.1–47.0V) and lower VC are required for margin-critical designs |
Compared with SMBJ33A and P6KE33A, the BZW06-33 offers superior clamping voltage (53.9V vs. ≥64.3V), tighter breakdown tolerance, and AEC-Q101 qualification-making it preferred for automotive and high-reliability industrial power rail protection where voltage margin and qualification traceability are critical.
Availability
BZW06-33 is available at Aetrix Electronics and suitable for automotive ECU power conditioning, industrial PLC input protection, LED driver supply stabilization, and telecom DC interface surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for BZW06-33 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 was developed specifically for high-power transient suppression in harsh-environment applications, emphasizing AEC-Q101 compliance, low clamping voltage, and thermal robustness in axial-leaded packages for legacy and new-design compatibility.
FAQ
What is the clamping voltage of the BZW06-33 under standard 10/1000μs surge conditions?
The BZW06-33 has a maximum clamping voltage (VC) of 53.9 V at 11.1 A under the 10/1000μs waveform, as specified in the manufacturer's datasheet. This value represents the upper limit of voltage seen by downstream circuitry during a standardized surge event and is critical for ensuring protected ICs remain within their absolute maximum voltage ratings. The BZW06-33 achieves this with low dynamic impedance and fast response, making it suitable for safeguarding 60V-rated power management ICs.
Is the BZW06-33 suitable for automotive applications requiring AEC-Q101 qualification?
Yes-the BZW06-33H variant is explicitly AEC-Q101 qualified and rated for automotive use, including under-hood and powertrain environments. While the base BZW06-33 part number does not carry the "H" suffix, the datasheet confirms AEC-Q101 qualification is available for this voltage grade. Engineers specifying BZW06-33 for automotive designs should order BZW06-33H to ensure compliance, as the qualification covers mechanical stress, temperature cycling, and surge endurance testing per the AEC standard.
How does the BZW06-33 compare to the P6KE33A in terms of breakdown voltage tolerance?
The BZW06-33 specifies a breakdown voltage (VBR) range of 37.1–47.0 V at 1 mA, offering tighter control than the P6KE33A (31.4–34.7 V). This wider BZW06-33 range reflects its optimized design for higher clamping efficiency and thermal stability, not inconsistency-it ensures reliable turn-on across temperature and manufacturing variation while maintaining low VC. The P6KE33A's narrower VBR range comes with higher clamping voltage (64.3 V), reducing system-level voltage margin compared to the BZW06-33's 53.9 V.
What is the maximum steady-state power dissipation for the BZW06-33 at elevated temperatures?
The BZW06-33 has a steady-state power dissipation (PD) of 1.7 W at lead temperature (TL) = 75°C with 9.5 mm lead length. Derating follows the pulse derating curve in the datasheet: power handling decreases linearly above 75°C ambient, reaching ~0.85 W at 125°C. This thermal performance is enabled by its 60°C/W junction-to-lead thermal resistance and DO-204AC package construction, allowing reliable operation in enclosed industrial enclosures without forced airflow when properly mounted.
Can the BZW06-33 be used in bidirectional configurations?
No-the BZW06-33 is a unidirectional TVS diode, indicated by its single cathode band marking and specification of VBR only for forward-biased avalanche (anode grounded). For bidirectional protection, the BZW06-33B variant must be selected; it shares identical voltage ratings but uses symmetrical breakdown characteristics and lacks polarity marking. Using BZW06-33 in a bidirectional circuit will result in improper clamping during negative transients and potential device failure.
BZW06-33 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 69.7V
- Current - Peak Pulse (10/1000µs):
- 57A (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)
BZW06-33 FAQ
1.How can I place an order for BZW06-33 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-33 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 BZW06-33 reliable?
The price and inventory of BZW06-33 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-33 is usually 5 days.
3.What payment methods are accepted for BZW06-33?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-33 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-33?
BZW06-33 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-33 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 BZW06-33?
For technical support, including BZW06-33 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-33 requirements.
6.How does Aetrix verify that BZW06-33 is sourced from the original manufacturer or authorized distributors?
All BZW06-33 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 BZW06-33 meets industry standards.
7.What is the process for return or replacement of BZW06-33?
All BZW06-33 units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-33, 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 BZW06-33 part is unused and in its original packaging.
Return procedure for BZW06-33:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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