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Vishay General Semiconductor - Diodes Division BZW04P11B-E3/73
- Part No.:
- BZW04P11B-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P11B-E3/73.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,076
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Product details
Overview
BZW04P11B-E3/73 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 11.1 V stand-off voltage (VWM), 12.4–14.3 V breakdown voltage (VBR at 1 mA), 18.2 V clamping voltage (VC) at 22 A peak pulse current, 400 W peak pulse power (10/1000 µs), and AEC-Q101 qualification - making it suitable for automotive sensor interface and industrial I/O line protection.
For engineers reviewing the BZW04P11B-E3/73 datasheet, BZW04P11B-E3/73 pinout, BZW04P11B-E3/73 application, or BZW04P11B-E3/73 equivalent, key selection criteria include its bi-directional capability, DO-41 package compatibility, low 0.081 %/°C VBR temperature coefficient, and verified performance under repetitive 10/1000 µs surge waveforms in harsh environments.
Technical Context
This bi-directional TVS diode uses a glass passivated chip junction to achieve fast response time (<1 ns), low incremental surge resistance, and stable clamping across both polarities. Its symmetrical breakdown behavior ensures identical protection for positive and negative transients without polarity marking on the device body.
Rated for operation from –55 °C to +175 °C and qualified to AEC-Q101, the BZW04P11B-E3/73 supports high-reliability applications where thermal cycling, inductive switching spikes, and lightning-induced surges must be suppressed without degradation. The 1.5 W steady-state power dissipation enables continuous monitoring of protected lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 11.1 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 12.4–14.3 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during transients without premature conduction |
| VC (Clamping Voltage) | 18.2 V at 22 A (10/1000 µs) - Peak voltage seen by downstream circuitry during worst-case surge; limits stress on protected ICs |
| PPPM (Peak Pulse Power) | 400 W - Sustains standardized 10/1000 µs surge waveform with 0.01 % duty cycle; validates ruggedness for repetitive events |
| IPPM (Peak Pulse Current) | 22 A - Maximum non-repetitive surge current the device safely clamps without failure; directly tied to PCB trace sizing |
| TJmax | +175 °C - Junction temperature limit enabling use in under-hood automotive and high-ambient industrial enclosures |
| Temperature Coefficient | 0.081 %/°C - Predictable VBR drift over temperature; critical for stable protection across full operating range |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, molded epoxy case meeting UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bi-directional) | Reversible transient conduction path | No polarity marking; terminals function identically for ± surges - simplifies layout and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional suppression | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, sensor bridges) without external polarity management |
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control modules, body controllers, and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable leakage performance (<1 µA at VWM) and long-term stability under humidity and thermal stress |
| 400 W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity requirements when properly mounted with low-inductance layout |
| RoHS-compliant E3 suffix | Meets JESD201 Class 1A whisker resistance; suitable for lead-free reflow and high-reliability commercial and automotive production |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting Hall-effect and thermistor sensor outputs from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤18.2 V during 22 A surges, preventing ADC saturation and latch-up while maintaining signal integrity below 11.1 V normal operation. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage shunt on the loop's input terminals, upstream of precision op-amp conditioning circuitry. Use Value: Clamps 10/1000 µs transients to 18.2 V before they reach sensitive current-to-voltage conversion stages, preserving measurement accuracy and system uptime. |
| RS-485 Communication Line | Consumer Appliance Motor Control |
Use Scenario: Shielding differential RS-485 transceivers from ESD and cable discharge events in building automation networks. IC Role / Device Role / Timing Role: Bi-directional TVS connected across A/B bus lines and to ground, providing symmetrical surge suppression. Use Value: Responds in <1 ns to ±15 kV ESD (IEC 61000-4-2) and clamps induced surges to safe levels without disrupting 10 Mbps data integrity. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-motor terminals to absorb inductive energy during MOSFET switch-off transitions. Use Value: Dissipates 400 W peak pulses without degradation, extending motor driver lifetime and eliminating false resets caused by voltage rail collapse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | DO-214AA (SMB) package; 11 V VWM, 17.5 V VC at 25.8 A; same 400 W rating but higher surge current capacity | Surface-mount footprint; better suited for automated assembly and space-constrained PCBs | Select SMBJ11CA when board real estate is limited and reflow compatibility is required; verify thermal relief pad design for 1.5 W dissipation |
| P6KE12CA | DO-15 package; 12 V VWM, 19.5 V VC at 20.5 A; lower peak pulse power (600 W) but higher VC and larger case | Legacy through-hole alternative with higher clamping voltage and less precise VBR tolerance | Choose P6KE12CA only for cost-sensitive, non-automotive designs where 19.5 V clamping is acceptable and AEC-Q101 is not mandated |
Compared with SMBJ11CA and P6KE12CA, the BZW04P11B-E3/73 offers tighter VBR tolerance (12.4–14.3 V vs. ±5 %), lower clamping voltage (18.2 V), and AEC-Q101 qualification - making it the preferred choice for automotive and high-reliability industrial signal line protection where precision and qualification matter.
Availability
BZW04P11B-E3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog input safeguarding, and RS-485 communication line hardening requiring stable component supply and long-term lifecycle support.
Supply support for BZW04P11B-E3/73 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The BZW04P series is part of Vishay's TransZorb® TVS platform engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure - balancing low clamping, fast response, and AEC-Q101 compliance.
FAQ
What is the maximum clamping voltage of the BZW04P11B-E3/73 under standard test conditions?
The BZW04P11B-E3/73 has a maximum clamping voltage (VC) of 18.2 V when subjected to a 10/1000 µs surge waveform at 22 A peak pulse current. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the BZW04P11B-E3/73 suitable for automotive applications?
Yes, the BZW04P11B-E3/73 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C, making it suitable for under-hood and chassis-mounted automotive applications. Its bi-directional architecture, low leakage, and stable clamping performance meet stringent requirements for protecting ECUs, sensor interfaces, and infotainment system I/O lines.
Does the BZW04P11B-E3/73 have polarity markings?
No, the BZW04P11B-E3/73 is a bi-directional TVS diode and carries no polarity marking on its DO-41 package. Both terminals are functionally identical for transient suppression, allowing flexible placement on PCBs without orientation constraints - a key advantage for differential or AC-coupled signal protection.
What is the standoff voltage (VWM) specification for the BZW04P11B-E3/73?
The standoff voltage (VWM) of the BZW04P11B-E3/73 is 11.1 V, representing the maximum continuous reverse voltage the device can block without exceeding 1 µA leakage current. This parameter ensures reliable operation below the clamping threshold during normal system operation while providing adequate margin against ripple and noise.
How does the temperature coefficient affect the BZW04P11B-E3/73's performance?
The BZW04P11B-E3/73 has a maximum temperature coefficient of 0.081 %/°C for its breakdown voltage (VBR). This means VBR increases predictably with junction temperature - enabling accurate transient threshold modeling across –55 °C to +175 °C - and ensuring consistent protection behavior in high-temperature environments like engine compartments.
BZW04P11B-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 22A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
BZW04P11B-E3/73 FAQ
1.How can I place an order for BZW04P11B-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P11B-E3/73 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 BZW04P11B-E3/73 reliable?
The price and inventory of BZW04P11B-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P11B-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P11B-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P11B-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P11B-E3/73?
BZW04P11B-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P11B-E3/73 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 BZW04P11B-E3/73?
For technical support, including BZW04P11B-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P11B-E3/73 requirements.
6.How does Aetrix verify that BZW04P11B-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P11B-E3/73 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 BZW04P11B-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P11B-E3/73?
All BZW04P11B-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P11B-E3/73, 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 BZW04P11B-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P11B-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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