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STMicroelectronics BZW06-33BRL
- Part No.:
- BZW06-33BRL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-33BRL.pdf
- Description:
- TVS DIODE 33.3VWM 69.7VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:6,306
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Product details
Overview
BZW06-33BRL from STMicroelectronics is a bidirectional transient voltage suppression diode in DO-15 package, designed for IEC 61000-4-2 ESD protection (30 kV air/contact discharge) and IEC 61000-4-4 surge immunity (4 kV level 4). It features a 33 V stand-off voltage (VRM), 53.9 V clamping voltage at 11.1 A (10/1000 µs), and 600 W peak pulse power rating. It operates up to 175 °C junction temperature and is used in AC/DC power inputs of industrial power supplies.
For engineers reviewing the BZW06-33BRL datasheet, BZW06-33BRL pinout, BZW06-33BRL application, or BZW06-33BRL equivalent, key selection criteria include clamping voltage vs. protected IC tolerance, unidirectional/bidirectional polarity match, thermal derating above 25 °C, and DO-15 PCB layout compatibility with high-reliability SMPS designs.
Technical Context
The BZW06-33BRL is a planar-junction silicon TVS diode optimized for fast response to electrostatic discharge and repetitive surges. Its bidirectional structure provides symmetrical clamping in both polarities, with dynamic resistance (RD) of 1.16 Ω at 10/1000 µs and 0.503 Ω at 8/20 µs, enabling low-voltage overshoot during transients.
It complies with IEC 61000-4-2 (30 kV contact/air), IEC 61000-4-4 (4 kV level 4), and UL 497B, and supports operation across –55 °C to +175 °C junction temperature range. Leakage current remains ≤0.2 µA at VRM = 33 V and 25 °C, ensuring minimal standby power impact in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 33 V - Maximum continuous reverse working voltage before clamping begins |
| Breakdown Voltage (VBR) | 37.1–41.1 V at 1 mA - Ensures reliable triggering margin above system operating voltage |
| Clamping Voltage (VCL) | 53.9 V at 11.1 A (10/1000 µs) - Limits transient voltage seen by downstream circuitry |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Sustains standard lightning-surge energy without failure |
| Junction Temperature Range | –55 °C to +175 °C - Enables use in high-ambient industrial and automotive under-hood environments |
| Leakage Current (IRM) | ≤0.2 µA at VRM - Prevents measurable power loss in low-power standby circuits |
| Dynamic Resistance (RD) | 1.16 Ω (10/1000 µs) - Determines voltage rise per ampere of surge current during clamping |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with matte tin-plated leads. Cathode band marking identifies polarity; bidirectional version has symmetric terminals with no anode/cathode distinction in circuit function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current entry (negative half-cycle) | Conducts surge current into device during negative polarity transients |
| Cathode (Lead 2) | Transient current entry (positive half-cycle) | Conducts surge current into device during positive polarity transients |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD robustness | 30 kV contact and air discharge - Eliminates need for external ESD staging in front-end interfaces |
| High-temperature reliability | 175 °C max junction temperature - Supports long-term operation in enclosed power enclosures without derating |
| Low dynamic resistance | 1.16 Ω at 10/1000 µs - Reduces clamping voltage overshoot under high-current surges |
| UL 497B certification | File QVGQ2.E136224 - Validates suitability for telecom/data line surge protection per safety standards |
| Planar junction technology | Low leakage (<0.2 µA) and stable VBR over life - Ensures consistent protection performance in 10+ year deployments |
Applications
| Industrial AC/DC Power Input | Telecom Line Interface |
|---|---|
Use Scenario: Protection of rectifier bridge and primary-side controller against lightning-induced surges on 230 VAC mains input. IC Role / Device Role: Bidirectional clamping element placed across AC line or between line and earth. Use Value: Clamps 4 kV IEC 61000-4-4 surges to ≤54 V, preventing damage to bridge diodes and startup ICs rated for <60 V absolute maximum. | Use Scenario: Surge suppression on POTS telephone line interface before SLIC or codec IC. IC Role / Device Role: Primary-line TVS connected differential-mode across tip/ring, referenced to ground. Use Value: Withstands repeated 30 kV ESD events and 4 kV ring wave surges while maintaining <0.2 µA leakage to avoid line bias errors. |
| Smart Meter Front-End | Industrial PLC Analog Input |
Use Scenario: Protection of current transformer secondary and metering ADC inputs against induced transients on utility distribution lines. IC Role / Device Role: Bidirectional TVS placed across CT output or before signal conditioning op-amp. Use Value: 175 °C operation enables direct mounting near heat-generating meter components without thermal derating. | Use Scenario: Protection of 4–20 mA loop transmitter inputs against field wiring transients in factory automation cabinets. IC Role / Device Role: Series-connected TVS on loop supply line, combined with shunt TVS to ground. Use Value: Low RD (1.16 Ω) limits voltage drop during 11 A surge, preserving loop integrity and avoiding false trip of current-sense comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | DO-214AA package; 600 W rating; VBR = 36.7–40.6 V; VCL = 53.3 V @ 11.2 A | Surface-mount footprint; requires different PCB land pattern and reflow profile | Select when board space is constrained and automated assembly is preferred over through-hole |
| P6KE33CA | DO-15 package; 600 W rating; VBR = 35.1–38.8 V; VCL = 53.3 V @ 11.3 A; higher IRM (1.0 µA) | Legacy design; wider VBR tolerance; higher leakage impacts ultra-low-power sensing | Select only for legacy replacement where existing DO-15 footprint and thermal mass must be preserved |
Compared with SMBJ33CA and P6KE33CA, BZW06-33BRL offers tighter VBR tolerance (±5.4% vs ±7.9% and ±5.3%), lower leakage (0.2 µA vs 1.0 µA), and validated 175 °C operation-critical for high-reliability industrial power designs requiring long-term stability.
Availability
BZW06-33BRL is available at Aetrix Electronics and suitable for industrial AC/DC power inputs, telecom line interfaces, and smart meter front-ends requiring stable component supply and full compliance with IEC 61000-4-2/4-4.
Supply support for BZW06-33BRL 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and consumer markets.
The BZW06 series belongs to ST's high-reliability TVS portfolio, engineered specifically for robust surge and ESD protection in harsh-environment power conversion and communication infrastructure equipment.
FAQ
What is the difference between BZW06-33BRL and BZW06-33RL?
BZW06-33BRL is the bidirectional version (marked with "B"), providing symmetrical clamping for AC or differential signals. BZW06-33RL is unidirectional, with defined anode/cathode polarity and intended for DC line-to-ground protection. Their VBR, VCL, and PPP ratings differ slightly due to internal junction design-BZW06-33BRL has VBR min 37.1 V and VCL 53.9 V, while BZW06-33RL has VBR min 37.1 V and VCL 53.3 V.
Can BZW06-33BRL be used in parallel for higher surge current handling?
No-parallel connection of TVS diodes is not recommended due to mismatched VBR tolerances causing current imbalance and premature failure of one device. For higher surge capability, select a single higher-rated part like BZW06-33BRL's 4 kW (8/20 µs) rating or use a TVS array with matched characteristics. Derating curves in Figure 3 confirm 300 W capability at 175 °C junction temperature.
Is the DO-15 package suitable for automated through-hole insertion?
Yes-the DO-15 package of BZW06-33BRL is compatible with standard axial-leaded through-hole insertion equipment. Lead spacing (26–31 mm) and diameter (0.71–0.88 mm) meet JEDEC DO-204AC specifications. Matte tin plating ensures solderability per J-STD-002 and JESD 22-B102 E3, and the 260 °C maximum lead temperature rating supports wave and selective soldering processes.
How does junction temperature affect clamping voltage performance?
Clamping voltage increases linearly with junction temperature, governed by the temperature coefficient αT = 10 × 10⁻⁴ /°C. At 175 °C, VCL rises ~1.5% above its 25 °C value (53.9 V → ~54.7 V). This is accounted for in the datasheet's VCL vs. IPP curves (Figure 5) and confirmed by the derating curve in Figure 3, which shows 600 W capability only at Tj ≤ 25 °C and 300 W at Tj = 175 °C.
BZW06-33BRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- BZW06, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- 450pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
BZW06-33BRL FAQ
1.How can I place an order for BZW06-33BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-33BRL 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 BZW06-33BRL reliable?
The price and inventory of BZW06-33BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-33BRL is usually 5 days.
3.What payment methods are accepted for BZW06-33BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-33BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-33BRL?
BZW06-33BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-33BRL 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 BZW06-33BRL?
For technical support, including BZW06-33BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-33BRL requirements.
6.How does Aetrix verify that BZW06-33BRL is sourced from the original manufacturer or authorized distributors?
All BZW06-33BRL 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 BZW06-33BRL meets industry standards.
7.What is the process for return or replacement of BZW06-33BRL?
All BZW06-33BRL units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-33BRL, 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 BZW06-33BRL part is unused and in its original packaging.
Return procedure for BZW06-33BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW06-33BRL Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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