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Vishay General Semiconductor - Diodes Division BZW04-9V4B-E3/54
- Part No.:
- BZW04-9V4B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-9V4B-E3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,838
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Product details
Overview
BZW04-9V4B-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 400 W peak pulse power (10/1000 μs), 9.4 V stand-off voltage (VWM), 10.5–11.6 V breakdown voltage (VBR), and clamps to ≤15.6 V at 25.7 A peak pulse current - used in automotive sensor interface protection and industrial I/O line surge suppression.
For engineers reviewing the BZW04-9V4B-E3/54 datasheet, BZW04-9V4B-E3/54 pinout, BZW04-9V4B-E3/54 application, or BZW04-9V4B-E3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, and low leakage (<5 μA at VWM) for low-power sensing circuits.
Technical Context
This device operates symmetrically in both polarities, with identical VBR, VC, and IPPM specifications for positive and negative surges. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
Designed for transient suppression per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), it delivers 400 W peak pulse power with 10/1000 μs waveform and supports operating junction temperatures from –55 °C to +175 °C - enabling use in under-hood automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.4 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 9 V nominal supply/signal lines. |
| VBR (min/max) | 10.5 V / 11.6 V at 1 mA - verified breakdown threshold ensuring reliable turn-on during overvoltage events without premature conduction. |
| VC @ IPPM | ≤15.6 V at 25.7 A - clamping voltage limits downstream IC stress during 400 W transient; critical for protecting 12 V logic interfaces. |
| IPPM | 25.7 A - peak pulse current capacity with 10/1000 μs waveform; determines survivability against lightning-induced surges. |
| PPPM | 400 W - standardized surge energy handling capability; enables robust protection in automotive load-dump and inductive switching scenarios. |
| ID @ VWM | ≤5.0 μA - ultra-low reverse leakage preserves signal integrity and battery life in always-on sensor nodes. |
| TJ max. | +175 °C - high junction temperature rating supports placement near heat sources in engine control units and motor drives. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking - consistent with bidirectional functionality. Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 reliability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical electrical behavior in either direction; no cathode band - simplifies PCB layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage across temperature and lifetime stress conditions. |
| 400 W peak pulse power (10/1000 μs) | Provides industry-standard surge immunity for ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 compliance. |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures. |
| RoHS-compliant (E3 suffix) | Meets global environmental regulations; compatible with lead-free reflow and wave soldering processes. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Prevents latch-up or permanent damage to 5 V/12 V sensor front-ends while maintaining <5 μA leakage for accurate low-current measurements. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Fast-response TVS placed across input terminals to clamp 400 W transients within 1 ns, preserving signal timing integrity. Use Value: Enables >100,000 surge cycles without parameter drift due to glass-passivated junction and 175 °C thermal capability. |
| Consumer Appliance Motor Control | Telecom Line Interface Protection |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Primary transient suppressor across motor terminals or H-bridge outputs to limit voltage overshoot during commutation. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle, eliminating need for derating in cyclic motor drive applications. |
Use Scenario: Protecting Ethernet PHYs and RS-485 transceivers in networked building automation systems from induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional clamping device on differential data lines to maintain common-mode noise rejection while limiting differential overvoltage. Use Value: Symmetric VBR and VC ensure balanced clamping on both signal polarities - essential for full-duplex communication integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | DO-214AA package (SMB), 9.0 V VWM, 14.4 V VC @ 28.6 A, same 400 W PPPM | Surface-mount alternative with higher thermal mass but larger footprint; requires PCB rework for through-hole replacement. | Select SMBJ9.0CA only when migrating to SMT assembly; not drop-in compatible with DO-41 layout. |
| P6KE9.1CA | DO-15 package, 9.1 V VWM, 14.4 V VC @ 27.8 A, 600 W PPPM, higher leakage (10 μA) | Higher power rating but wider VC tolerance and non-AEC-Q101 qualification; suited for cost-sensitive industrial use. | Choose P6KE9.1CA where AEC-Q101 is not required and higher surge margin justifies larger DO-15 body. |
Compared with SMBJ9.0CA and P6KE9.1CA, BZW04-9V4B-E3/54 offers AEC-Q101 qualification, lower leakage (5 μA vs. 10 μA), and DO-41 axial form factor optimized for manual assembly and high-reliability through-hole mounting in automotive harness connectors.
Availability
BZW04-9V4B-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer appliance motor controls, and telecom line protection requiring stable component supply and long-lifecycle support.
Supply support for BZW04-9V4B-E3/54 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, MOSFETs, and protection devices with emphasis on reliability and automotive-grade validation.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy bidirectional transient suppression in harsh environments including automotive, industrial, and telecommunications infrastructure.
FAQ
What is the clamping voltage of BZW04-9V4B-E3/54 at its rated peak pulse current?
The BZW04-9V4B-E3/54 clamps to a maximum of 15.6 V at its rated peak pulse current of 25.7 A (10/1000 μs waveform). This value is specified in the Vishay datasheet Document Number 88316, page 2, and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with 12 V logic interfaces and sensor front-ends.
Is BZW04-9V4B-E3/54 qualified for automotive applications?
Yes, BZW04-9V4B-E3/54 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 16-Sep-2021 (Document Number 88316, page 4, footnote 1). This qualification validates its reliability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces under extended temperature and vibration stress conditions.
What does the "B" suffix indicate in BZW04-9V4B-E3/54?
The "B" suffix in BZW04-9V4B-E3/54 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. As stated in the Vishay datasheet (page 1), bidirectional types have identical electrical characteristics in forward and reverse directions and carry no polarity marking - distinguishing them from unidirectional variants like BZW04-9V4-E3/54.
What is the maximum reverse leakage current for BZW04-9V4B-E3/54 at its stand-off voltage?
The maximum reverse leakage current (ID) for BZW04-9V4B-E3/54 is 5.0 μA at its stand-off voltage (VWM) of 9.4 V, per the Electrical Characteristics table on page 2 of the Vishay datasheet (Document Number 88316). This low leakage preserves signal fidelity and battery runtime in always-on sensor and monitoring applications.
What package type is used for BZW04-9V4B-E3/54 and what are its key mechanical features?
BZW04-9V4B-E3/54 uses the DO-41 (DO-204AL) axial-leaded package, with molded epoxy housing meeting UL 94 V-0 flammability rating. Its leads are matte tin-plated and solderable per J-STD-002 and JESD22-B102, and the E3 suffix confirms compliance with JESD201 Class 1A whisker testing - making it suitable for high-reliability through-hole assembly in automotive and industrial systems.
BZW04-9V4B-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 25.7A
- 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)
BZW04-9V4B-E3/54 FAQ
1.How can I place an order for BZW04-9V4B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-9V4B-E3/54 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 BZW04-9V4B-E3/54 reliable?
The price and inventory of BZW04-9V4B-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-9V4B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-9V4B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-9V4B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-9V4B-E3/54?
BZW04-9V4B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-9V4B-E3/54 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 BZW04-9V4B-E3/54?
For technical support, including BZW04-9V4B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-9V4B-E3/54 requirements.
6.How does Aetrix verify that BZW04-9V4B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-9V4B-E3/54 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 BZW04-9V4B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-9V4B-E3/54?
All BZW04-9V4B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-9V4B-E3/54, 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 BZW04-9V4B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-9V4B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-9V4B-E3/54 Tags
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