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STMicroelectronics BZW06-48BRL
- Part No.:
- BZW06-48BRL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
BZW06-48BRL.pdf
- Description:
- TVS DIODE 47.8VWM 100VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,932
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Product details
Overview
BZW06-48BRL from STMicroelectronics is a bidirectional transient voltage suppression (TVS) 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 standoff voltage (VRM) of 48 V, clamping voltage (VCL) ≤77.6 V at 10/1000 µs, peak pulse power of 600 W, and operates up to 175 °C junction temperature - used in telecom line interfaces and industrial I/O protection.
For engineers reviewing the BZW06-48BRL datasheet, BZW06-48BRL pinout, BZW06-48BRL application, or BZW06-48BRL equivalent, key selection criteria include unidirectional/bidirectional polarity, VRM–VBR–VCL matching, 10/1000 µs vs. 8/20 µs surge capability, thermal derating above 25 °C, and DO-15 mechanical compatibility with FR4 PCB layouts.
Technical Context
This device uses planar silicon junction technology to achieve low leakage current (<0.2 µA at VRM), high Tj max (175 °C), and stable dynamic resistance (RD ≈ 0.62 Ω at 10/1000 µs). Its bidirectional structure enables symmetrical clamping for AC-coupled lines without polarity sensitivity.
Clamping behavior follows VCL = VBR + RD × IPP, with temperature coefficient αT = 10⁻⁴/°C for both VBR and VCL. Surge capability is validated per IEC 61000-4-2 (30 kV), IEC 61000-4-4 (4 kV), and MIL-STD-883 Method 3015, supporting robust front-end protection in harsh EMI environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 48 V - maximum continuous reverse operating voltage before significant leakage |
| Breakdown Voltage (VBR) | 53.9 V min @ IBR = 1 mA - ensures reliable triggering above normal signal swing |
| Clamping Voltage (VCL) | ≤77.6 V @ IPP = 7.7 A (10/1000 µs) - limits downstream voltage stress during surge |
| Peak Pulse Power | 600 W @ 10/1000 µs, Tamb = 25 °C - defines single-event energy handling capacity |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in extended industrial and automotive under-hood environments |
| ESD Withstand | 30 kV contact & air discharge (IEC 61000-4-2) - exceeds level 4 for system-level ESD immunity |
| Surge Immunity | 4 kV fast transient burst (IEC 61000-4-4 level 4) - protects against coupled noise on data/power lines |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with matte tin-plated leads; body length 6.05–6.75 mm, lead diameter 0.71–0.88 mm, overall length 26–31 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Current entry terminal in forward bias | Connected to protected line side; forms symmetrical conduction path with cathode in bidirectional mode |
| Cathode (Lead 2) | Current exit terminal in forward bias | Connected to ground or reference rail; enables clamping to common potential during both polarity surges |
Key Features
| Feature | Design Value |
|---|---|
| High-Temperature Operation | Rated for continuous use up to 175 °C junction temperature - enables placement near heat sources in SMPS or motor drives |
| Low Leakage Current | ≤0.2 µA at VRM = 48 V - minimizes standby power loss and avoids false triggering in high-impedance circuits |
| Fast Clamping Response | Sub-nanosecond turn-on time - suppresses transients before sensitive ICs experience overvoltage damage |
| Robust Surge Rating | Up to 4 kW peak power @ 8/20 µs - handles lightning-induced surges in telecom and building automation systems |
| UL & IEC Compliance | UL 497B certified (QVGQ2.E136224), IEC 61000-4-2/4-4 qualified - simplifies end-equipment safety certification |
Applications
| Industrial PLC Analog Inputs | Telecom DSL Line Interface |
|---|---|
Use Scenario: Protection of 4–20 mA current loop inputs against induced surges from nearby relay switching or lightning coupling. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across input terminals to shunt transient energy to ground before reaching precision ADC or op-amp front-end. Use Value: Prevents latch-up or permanent damage to instrumentation amplifiers while maintaining <0.2 µA leakage to preserve loop accuracy. | Use Scenario: Surge suppression on twisted-pair DSL lines exposed to longitudinal surges from outdoor cable runs. IC Role / Device Role / Timing Role: Primary line-side protection element between transformer secondary and line driver/receiver ICs. Use Value: Limits clamped voltage to ≤77.6 V during 10/1000 µs surges, staying below absolute maximum ratings of ADSL2+ PHY ICs. |
| Automotive Body Control Module I/O | Smart Meter RS-485 Port |
Use Scenario: Protecting LIN or CAN physical layer inputs from load dump and ISO 7637-2 pulse 5a/b transients in vehicle subsystems. IC Role / Device Role / Timing Role: Secondary protection stage after primary GDT or polymer PTC, providing fast, low-clamp backup for semiconductor interface ICs. Use Value: Maintains functional safety integrity by clamping within 100 ns and surviving repeated 175 °C junction temperature excursions. | Use Scenario: Securing two-wire RS-485 communication ports in utility meters installed in electrically noisy substations or distribution panels. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to local ground, absorbing common-mode surges coupled onto bus wires. Use Value: Enables compliance with IEC 61000-4-4 level 4 (4 kV) without requiring additional isolation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48CA | DO-214AA package; 600 W rating; VBR = 53.3 V min; VCL = 77.4 V @ 7.7 A | Surface-mount footprint - requires PCB rework for through-hole replacement | Select when board space is constrained and reflow assembly is preferred over axial-leaded wave soldering |
| P6KE48CA | DO-15 package; 600 W rating; VBR = 50.4 V min; VCL = 77.0 V @ 7.8 A; higher IRM (10 µA) | Legacy design with wider VBR tolerance and higher leakage - less suitable for low-power IoT nodes | Choose only for cost-sensitive legacy production where minor leakage increase is acceptable |
Compared with SMBJ48CA and P6KE48CA, BZW06-48BRL offers tighter VBR tolerance (±5% vs ±10%), lower leakage (<0.2 µA vs 10 µA), and optimized thermal performance for sustained high-temperature operation - critical for reliability in sealed industrial enclosures.
Availability
BZW06-48BRL is available at Aetrix Electronics and suitable for industrial PLC analog inputs, telecom DSL line interfaces, and automotive body control module I/O requiring stable component supply and long-term obsolescence management.
Supply support for BZW06-48BRL 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, delivering intelligent power, sensing, and control solutions for industrial, automotive, and consumer markets.
BZW06-48BRL belongs to ST's high-reliability TVS diode portfolio targeting system-level EMC compliance - engineered specifically for robust front-end protection in equipment subject to IEC 61000-4-2/4-4 and MIL-STD-883 stress conditions.
FAQ
Is BZW06-48BRL unidirectional or bidirectional?
BZW06-48BRL is a bidirectional TVS diode, indicated by the "B" suffix in the part number. It provides symmetrical clamping for both positive and negative transients, making it suitable for AC-coupled lines like telecom interfaces and differential buses without polarity constraints.
What is the maximum clamping voltage at 10/1000 µs for BZW06-48BRL?
The maximum clamping voltage (VCL) for BZW06-48BRL is 77.6 V at a peak pulse current (IPP) of 7.7 A under 10/1000 µs waveform conditions, measured at 25 °C ambient. This value increases linearly with junction temperature using αT = 10⁻⁴/°C.
Can BZW06-48BRL replace P6KE48CA in existing designs?
Yes, BZW06-48BRL is a direct mechanical and electrical replacement for P6KE48CA in DO-15 sockets, offering improved specifications: lower leakage (<0.2 µA vs 10 µA), tighter VBR tolerance (±5% vs ±10%), and enhanced high-temperature stability up to 175 °C junction temperature.
Does BZW06-48BRL meet UL 497B requirements for telecom surge protection?
Yes, BZW06-48BRL is UL 497B certified under file number QVGQ2.E136224, confirming its suitability for primary and secondary circuit protection in telecommunications equipment per ANSI/UL 497B Annex D and IEC 61643-21 requirements.
BZW06-48BRL 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):
- 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:
- 350pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
BZW06-48BRL FAQ
1.How can I place an order for BZW06-48BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW06-48BRL 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 BZW06-48BRL reliable?
The price and inventory of BZW06-48BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW06-48BRL is usually 5 days.
3.What payment methods are accepted for BZW06-48BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW06-48BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW06-48BRL?
BZW06-48BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW06-48BRL 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 BZW06-48BRL?
For technical support, including BZW06-48BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW06-48BRL requirements.
6.How does Aetrix verify that BZW06-48BRL is sourced from the original manufacturer or authorized distributors?
All BZW06-48BRL 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 BZW06-48BRL meets industry standards.
7.What is the process for return or replacement of BZW06-48BRL?
All BZW06-48BRL units undergo pre-shipment inspection (PSI). If there is an issue with BZW06-48BRL, 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 BZW06-48BRL part is unused and in its original packaging.
Return procedure for BZW06-48BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW06-48BRL Tags
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onsemi
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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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