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STMicroelectronics BZW06-342RL
- Part No.:
- BZW06-342RL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-342RL.pdf
- Description:
- TVS DIODE 342VWM 706VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:5,011
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Product details
Overview
BZW06-342RL from STMicroelectronics is a unidirectional transient voltage suppression (TVS) diode in DO-15 package, designed for high-energy surge protection in DC power lines and signal interfaces. It features a standoff voltage (VRM) of 342 V, clamping voltage (VCL) of 548 V at 1.1 A (10/1000 µs), peak pulse power of 600 W, and operates up to 175 °C junction temperature - deployed in industrial power supplies and telecom line cards.
For engineers reviewing the BZW06-342RL datasheet, BZW06-342RL pinout, BZW06-342RL application, or BZW06-342RL equivalent, key selection criteria include verified clamping performance at 342 V standoff, low dynamic resistance (50.2 Ω), IEC 61000-4-2 ±30 kV ESD robustness, and DO-15 thermal reliability under sustained 175 °C operation.
Technical Context
This TVS diode uses planar silicon junction technology optimized for low leakage (<0.2 µA at VRM) and stable clamping across temperature (αT = 11 × 10⁻⁴/°C). Its unidirectional configuration provides asymmetric conduction: reverse-biased clamping during overvoltage events and forward conduction only above ~1.5 V.
The device meets IEC 61000-4-4 Level 4 (4 kV fast transient burst) and exceeds IEC 61000-4-2 Level 4 for both contact and air discharge (±30 kV). Thermal impedance is characterized for FR4 PCBs with 70 µm copper, supporting reliable power derating up to 300 W at Tj = 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 342 V - maximum continuous reverse operating voltage before clamping initiates |
| Breakdown Voltage (VBR) | 380–420 V at 1 mA - ensures precise, repeatable clamping onset under surge conditions |
| Clamping Voltage (VCL) | 548 V at 1.1 A (10/1000 µs) - limits downstream circuit voltage during 600 W transients |
| Peak Pulse Power | 600 W (10/1000 µs) - sustains industrial-grade surge energy without failure |
| Dynamic Resistance (RD) | 50.2 Ω - determines voltage rise per ampere of surge current beyond VBR |
| Junction Temperature Range | −55 °C to +175 °C - enables deployment in high-ambient environments like base station power modules |
| ESD Withstand | ±30 kV (IEC 61000-4-2, contact & air) - exceeds automotive and industrial immunity requirements |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with matte tin-plated leads; cathode indicated by band marking. Standard lead spacing supports manual and wave-solder assembly on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to lower-potential side of protected line; conducts only during forward surges >1.5 V |
| Cathode | Reverse clamping node | Connected to higher-potential side; initiates avalanche breakdown at 342 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Rated for continuous use up to 175 °C junction temperature - eliminates derating in enclosed power enclosures |
| Low leakage current | ≤0.2 µA at 342 V and 25 °C - prevents standby power loss in always-on systems |
| Stable voltage coefficient | αT = 11 × 10⁻⁴/°C - enables accurate clamping prediction across full operating range |
| Robust surge capability | Withstands 4 kW pulses (8/20 µs) - handles lightning-induced transients in telecom infrastructure |
Applications
| Industrial AC/DC Power Supply | Telecom Line Interface |
|---|---|
Use Scenario: Protection of primary-side rectifier outputs against load dump and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed across bulk capacitor input to clamp transients before they reach switching controller. Use Value: Clamps 600 W surges at ≤548 V while maintaining <0.2 µA leakage - preserves efficiency and avoids false shutdowns. | Use Scenario: Surge protection on POTS or xDSL line interface circuits exposed to induced surges. IC Role / Device Role / Timing Role: Front-end TVS connected between tip/ring and ground to shunt common-mode transients. Use Value: Withstands ±30 kV ESD and 4 kV EFT bursts without degradation - ensures long-term reliability in field-deployed equipment. |
| Motor Drive DC Bus | Renewable Energy Inverter Input |
Use Scenario: Protection of DC link capacitors in variable-frequency drives subjected to regenerative braking spikes. IC Role / Device Role / Timing Role: TVS mounted across DC bus rails to suppress inductive kickback from IGBT gate drivers. Use Value: 175 °C rating allows direct mounting near heat-generating power stages - reduces thermal interface complexity. | Use Scenario: Overvoltage protection on PV string inputs of solar microinverters exposed to grid fault transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between PV+ and ground to clamp negative-going surges from grid coupling. Use Value: 342 V VRM matches typical 600 V-class PV string open-circuit voltage - avoids premature clamping during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ340A | DO-214AA package; 340 V VRM; 553 V VCL @ 1.1 A; 600 W rating | Surface-mount footprint - requires PCB redesign; lower thermal resistance due to SMD pad coupling | Select when board space is constrained and reflow assembly is preferred over axial through-hole. |
| P6KE350A | DO-15 package; 350 V VRM; 567 V VCL @ 1.06 A; 600 W rating; higher IRM (1 µA) | Near-identical mechanical fit but higher leakage - unsuitable for ultra-low-power standby circuits | Choose only if leakage tolerance >1 µA and existing DO-15 footprint must be retained without revision. |
Compared with SMBJ340A and P6KE350A, BZW06-342RL offers tighter VBR tolerance (380–420 V vs. ±5%), lower leakage (<0.2 µA), and superior temperature coefficient stability - critical for precision clamping in high-reliability power systems.
Availability
BZW06-342RL is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, telecom line interfaces, motor drive DC buses, and renewable energy inverter inputs requiring stable component supply and long-lifecycle support.
Supply support for BZW06-342RL 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, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The BZW06 series belongs to ST's high-reliability TVS portfolio, engineered specifically for robust surge immunity in harsh-environment power conversion and communication infrastructure applications.
FAQ
What is the maximum clamping voltage of BZW06-342RL under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 548 V at 1.1 A for a 10/1000 µs waveform, measured at 25 °C ambient. This value increases linearly with junction temperature at a coefficient of 11 × 10⁻⁴/°C - at 175 °C, VCL rises to approximately 620 V.
Is BZW06-342RL bidirectional or unidirectional?
BZW06-342RL is unidirectional. Its part number suffix "RL" (without "B") confirms unidirectional configuration: it clamps only in reverse bias and conducts forward current above ~1.5 V. Bidirectional variants carry "B" (e.g., BZW06-342B).
Can BZW06-342RL replace P6KE350A in an existing DO-15 design?
Yes - both share DO-15 packaging and similar electrical ratings. However, BZW06-342RL has lower leakage (<0.2 µA vs. 1 µA), tighter VBR (380–420 V vs. 332–368 V), and better temperature stability. Verify layout clearance for marking band placement and confirm thermal margin at 175 °C.
Does BZW06-342RL meet UL 497B certification?
Yes - it carries UL 497B file number QVGQ2.E136224, certifying suitability for primary-protection applications in telecommunications and data line equipment. This includes compliance with surge withstand, flammability (UL94 V0), and creepage/clearance requirements.
BZW06-342RL 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 342V
- Voltage - Breakdown (Min):
- 380V
- Voltage - Clamping (Max) @ Ipp:
- 706V
- Current - Peak Pulse (10/1000µs):
- 5.7A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 360pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
BZW06-342RL FAQ
1.How can I place an order for BZW06-342RL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-342RL 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 BZW06-342RL reliable?
The price and inventory of BZW06-342RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-342RL is usually 5 days.
3.What payment methods are accepted for BZW06-342RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-342RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-342RL?
BZW06-342RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-342RL 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 BZW06-342RL?
For technical support, including BZW06-342RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-342RL requirements.
6.How does Aetrix verify that BZW06-342RL is sourced from the original manufacturer or authorized distributors?
All BZW06-342RL 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 BZW06-342RL meets industry standards.
7.What is the process for return or replacement of BZW06-342RL?
All BZW06-342RL units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-342RL, 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 BZW06-342RL part is unused and in its original packaging.
Return procedure for BZW06-342RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW06-342RL Tags
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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