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Vishay General Semiconductor - Diodes Division BZW04P11BHE3/73
- Part No.:
- BZW04P11BHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P11BHE3/73.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,628
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Product details
Overview
BZW04P11BHE3/73 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), 18.2 V maximum clamping voltage (VC) at 22.0 A peak pulse current (IPPM), and 400 W peak pulse power capability with a 10/1000 μs waveform. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients.
For engineers reviewing the BZW04P11BHE3/73 datasheet, BZW04P11BHE3/73 pinout, BZW04P11BHE3/73 application, or BZW04P11BHE3/73 equivalent, key selection criteria include its bi-directional polarity, DO-41 package compatibility, 175 °C junction temperature rating, and compliance with automotive-grade reliability standards.
Technical Context
This bi-directional TVS diode operates symmetrically in both forward and reverse bias, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated chip junction ensures stable breakdown characteristics and low incremental surge resistance.
The device delivers 400 W peak pulse power handling under standardized 10/1000 μs transients at ≤0.01% duty cycle, with clamping performance validated up to 22.0 A IPPM. Its 0.081 %/°C temperature coefficient of breakdown voltage ensures predictable voltage threshold drift across operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11.1 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VC @ IPPM | 18.2 V - Clamped voltage at 22.0 A peak pulse; limits downstream voltage stress during ESD or load dump events. |
| PPPM | 400 W - Peak transient energy absorption capacity per 10/1000 μs waveform; supports industrial and automotive surge immunity. |
| TJ max. | +175 °C - Maximum junction temperature; enables operation in under-hood or high-ambient industrial environments. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with 0.205" body diameter; compatible with legacy PCB layouts and wave soldering. |
| AEC-Q101 | Qualified - Validated for automotive electronic modules requiring reliability beyond commercial-grade components. |
| RoHS | Compliant - Meets Directive 2011/65/EU; HE3 suffix denotes AEC-Q101 qualified, matte tin-plated leads. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, cylindrical epoxy-molded case with no polarity marking for bi-directional operation. Leads are matte tin-plated and solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional terminal pair | No cathode band; terminals are functionally identical and interchangeable - enables symmetrical clamping on AC or bidirectional data lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of differential interfaces (e.g., RS-485, CAN) without external polarity management. |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) when properly mounted with low-inductance layout. |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules requiring extended temperature cycling and humidity testing. |
| Low clamping ratio (VC/VWM = 1.64) | Minimizes protected circuit overvoltage margin - critical for safeguarding 12 V logic interfaces and low-voltage sensors. |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and repeatable breakdown behavior over 10+ year service life. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting wheel speed or pressure sensor signal lines from inductive kickback and battery load dump transients in vehicle chassis modules. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, responding within <1 ns to limit transient excursions. Use Value: Prevents latch-up or permanent damage to analog front-end ICs by holding voltage below 18.2 V during 22 A transients. | Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Symmetrical transient suppressor across A/B differential pair, clamping common-mode surges without disrupting DC bias. Use Value: Maintains signal integrity by limiting differential overshoot to <18.2 V while preserving 11.1 V common-mode operating window. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression on 12 V DC output rails of wall adapters subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Final-stage clamp after primary-side isolation, absorbing residual transients that bypass Y-capacitor filtering. Use Value: Limits output rail excursion to 18.2 V, preventing damage to connected USB peripherals or charging circuits. | Use Scenario: Protecting Ethernet PHY interface pins on telecom line cards from induced surges on long copper runs in central office environments. IC Role / Device Role / Timing Role: Bi-directional TVS placed on each twisted-pair line (TX+/TX−, RX+/RX−) referenced to chassis ground. Use Value: Ensures IEEE 802.3 compliance by clamping fast-rising transients to ≤18.2 V before they reach sensitive PHY silicon. |
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) surface-mount package; same 11.1 V VWM and 18.2 V VC, but 600 W PPPM rating. | Requires PCB redesign for SMT placement; better suited for high-density boards where space is constrained. | Select SMBJ11CA only if board layout supports SMB footprint and higher surge margin is required. |
| P6KE12CA | DO-15 package; 12 V VWM (vs. 11.1 V), 20.1 V VC at 20.5 A; lower 600 W PPPM but higher leakage at elevated temperature. | Less precise match for 12 V nominal systems due to wider VWM tolerance and higher clamping voltage. | Choose P6KE12CA only for cost-sensitive commercial designs where AEC-Q101 qualification is not mandatory. |
Compared with BZW04P11BHE3/73, SMBJ11CA offers higher surge rating in a smaller SMT package but lacks AEC-Q101 validation, while P6KE12CA provides legacy DO-15 compatibility at the expense of tighter voltage matching and automotive reliability assurance.
Availability
BZW04P11BHE3/73 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial communication interfaces, and telecom line card designs requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for BZW04P11BHE3/73 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability and application-specific validation.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and telecommunications infrastructure where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What does the "HE3" suffix indicate in BZW04P11BHE3/73?
The "HE3" suffix in BZW04P11BHE3/73 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. It confirms the device meets automotive reliability standards, uses matte tin-plated leads, and is rated for operation from –55 °C to +175 °C - essential for under-hood and industrial control applications where BZW04P11BHE3/73 is deployed.
Is BZW04P11BHE3/73 uni-directional or bi-directional?
BZW04P11BHE3/73 is a bi-directional TVS diode, as confirmed by the "B" in its part number and absence of cathode band marking. It clamps voltage transients equally in both polarities, making it suitable for protecting AC-coupled signals, differential buses like RS-485, and ungrounded power rails - a core functional attribute of BZW04P11BHE3/73 per Vishay's datasheet.
What is the maximum clamping voltage of BZW04P11BHE3/73 and at what current is it specified?
The maximum clamping voltage (VC) of BZW04P11BHE3/73 is 18.2 V, measured at a peak pulse current (IPPM) of 22.0 A using the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is a key parameter for ensuring downstream components remain within safe operating voltage margins when using BZW04P11BHE3/73.
Can BZW04P11BHE3/73 be used in place of a uni-directional TVS like BZW04P11HE3/73?
No - BZW04P11BHE3/73 is bi-directional and lacks polarity marking, whereas BZW04P11HE3/73 is uni-directional with a cathode band. Substituting them requires verifying circuit topology: BZW04P11BHE3/73 is appropriate for AC or floating nodes, but BZW04P11HE3/73 must be used where DC bias direction matters. Using BZW04P11BHE3/73 in a uni-directional design may result in unintended conduction during normal operation.
What packaging format is supplied for BZW04P11BHE3/73?
BZW04P11BHE3/73 is supplied in 13" diameter paper tape and reel packaging with a base quantity of 550 units per reel (package code 54). This format supports automated pick-and-place insertion for through-hole assembly lines and is documented in Vishay's ordering information table for BZW04P11BHE3/73.
BZW04P11BHE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P11BHE3/73 FAQ
1.How can I place an order for BZW04P11BHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P11BHE3/73 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 BZW04P11BHE3/73 reliable?
The price and inventory of BZW04P11BHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P11BHE3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P11BHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P11BHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P11BHE3/73?
BZW04P11BHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P11BHE3/73 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 BZW04P11BHE3/73?
For technical support, including BZW04P11BHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P11BHE3/73 requirements.
6.How does Aetrix verify that BZW04P11BHE3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P11BHE3/73 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 BZW04P11BHE3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P11BHE3/73?
All BZW04P11BHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P11BHE3/73, 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 BZW04P11BHE3/73 part is unused and in its original packaging.
Return procedure for BZW04P11BHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P11BHE3/73 Tags
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