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Vishay General Semiconductor - Diodes Division BZW04-9V4BHE3/54
- Part No.:
- BZW04-9V4BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-9V4BHE3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,568
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Product details
Overview
BZW04-9V4BHE3/54 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 a 9.4 V stand-off voltage (VWM), 10.5–11.6 V breakdown voltage (VBR) at 5 mA, 15.6 V maximum clamping voltage (VC) at 25.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces against inductive switching surges.
For engineers reviewing the BZW04-9V4BHE3/54 datasheet, BZW04-9V4BHE3/54 pinout, BZW04-9V4BHE3/54 application, or BZW04-9V4BHE3/54 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified bidirectional TVS for automotive and industrial board-level surge protection where low clamping voltage and fast response (<1 ns) are critical.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical electrical characteristics forward and reverse. Its glass-passivated junction enables stable breakdown behavior and low incremental surge resistance, supporting repetitive 0.01% duty cycle pulses per JESD22-A114.
The device complies with AEC-Q101 stress testing for automotive use and meets UL 94 V-0 flammability requirements via its molded epoxy DO-41 case. Its 175 °C maximum junction temperature and -55 °C to +175 °C operating range support under-hood and industrial ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.4 V - maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (min/max) | 10.5 V / 11.6 V at 5 mA - verified breakdown range ensures predictable turn-on during transient events |
| VC @ IPPM | 15.6 V at 25.7 A - clamping voltage limits downstream component stress during 10/1000 µs surge |
| PPPM | 400 W - peak pulse power handling capability with standard 10/1000 µs waveform per IEC 61000-4-5 |
| IPPM | 25.7 A - maximum non-repetitive peak pulse current supported without degradation |
| TJ max. | 175 °C - enables reliable operation in high-temperature environments such as automotive engine control units |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with matte tin-plated leads, compatible with wave soldering (275 °C, 10 s) |
Pinout & Package
DO-41 package: axial-leaded, cylindrical epoxy-molded case with no polarity marking for bidirectional configuration; cathode/anode not designated - terminals are functionally interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (either lead) | Transient conduction path | Both terminals serve identically as symmetrical surge current entry/exit points; no DC polarity dependency |
| Case | Passive mechanical structure | Molded epoxy body provides mechanical robustness and UL 94 V-0 flame resistance; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualification | Validated for automotive applications including engine management, body electronics, and ADAS sensor interfaces |
| 400 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events without derating |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on protected ICs compared to higher-ratio suppressors |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and JESD22-B102; HE3 suffix meets JESD201 Class 2 whisker resistance |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector or IC input pins to shunt transients before they reach sensitive circuitry. Use Value: Clamps 10/1000 µs surges to ≤15.6 V while maintaining 9.4 V stand-off, preserving signal integrity and preventing latch-up in 5 V or 3.3 V interface ICs. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against field-induced surges from solenoid switching or lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage suppression device on 24 V DC I/O lines, installed upstream of optocouplers or level translators. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle and operates reliably from -55 °C to +175 °C, enabling uninterrupted operation in harsh factory environments. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side transient suppression on DC output rails of wall adapters and USB PD chargers exposed to system-level ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response shunt device across regulated 5 V, 9 V, or 12 V outputs to limit overshoot during hot-plug or fault recovery. Use Value: Sub-1 ns response time and low 15.6 V clamping ensure downstream USB controllers and PMICs remain within absolute maximum ratings during transient events. |
Use Scenario: Protecting Ethernet PHYs, DSL line drivers, and POTS interface ICs from induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Bidirectional surge limiter placed between transformer secondary and PHY IC, referenced to signal ground. Use Value: Symmetrical VBR and matched VC enable balanced protection of differential pairs without skew or common-mode disruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Unidirectional; 9.0 V VWM; SMC package; 600 W PPPM; 1.0 mm pitch surface-mount | Requires polarity-aware layout; better suited for high-density PCBs where space is constrained | Select when board area is limited and unidirectional protection suffices; verify grounding topology supports single-ended clamping |
| P6KE9.1A | Unidirectional; 9.1 V VWM; DO-15 package; 600 W PPPM; higher IPPM (38.4 A) | Larger DO-15 footprint; higher surge current capacity but slower response than BZW04 series | Choose for legacy through-hole designs needing higher energy absorption; confirm thermal relief matches DO-15 pad geometry |
Compared with SMBJ9.0A and P6KE9.1A, the BZW04-9V4BHE3/54 offers bidirectional symmetry in a compact DO-41 form factor with AEC-Q101 qualification - making it uniquely suitable for automotive signal-line protection where polarity-agnostic clamping and qualification compliance are mandatory.
Availability
BZW04-9V4BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, traceable sourcing, and long-lifecycle continuity.
Supply support for BZW04-9V4BHE3/54 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, and protection devices with emphasis on reliability, qualification, and application-specific performance.
The BZW04 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in automotive, industrial, and communications systems where AEC-Q101 compliance and precise clamping are essential.
FAQ
What is the polarity configuration of BZW04-9V4BHE3/54?
The BZW04-9V4BHE3/54 is a bidirectional TVS diode with symmetrical electrical characteristics in both directions. It has no polarity marking on the DO-41 package, and either lead may serve as anode or cathode depending on transient polarity - enabling straightforward placement on AC-coupled or differential signal lines without orientation constraints.
Is BZW04-9V4BHE3/54 qualified for automotive applications?
Yes, the BZW04-9V4BHE3/54 carries the HE3 suffix, indicating full AEC-Q101 qualification. This includes stress testing for temperature cycling, humidity bias, mechanical shock, and ESD - confirming suitability for under-hood and chassis-mounted automotive electronics such as engine control units and ADAS sensor modules.
What is the maximum clamping voltage of BZW04-9V4BHE3/54 under surge conditions?
The BZW04-9V4BHE3/54 exhibits a maximum clamping voltage (VC) of 15.6 V when subjected to its rated 25.7 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC overvoltage margin design.
How does the HE3 suffix differ from the E3 suffix in BZW04-9V4BHE3/54?
The HE3 suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas E3 indicates commercial-grade RoHS compliance only. For BZW04-9V4BHE3/54, the HE3 designation confirms automotive-grade reliability, including extended temperature operation and enhanced metallurgical stability of the matte tin-plated leads.
Can BZW04-9V4BHE3/54 be used in place of a unidirectional TVS like BZW04-9V4HE3/54?
No - BZW04-9V4BHE3/54 is strictly bidirectional and cannot replace unidirectional variants in circuits requiring DC blocking or polarity-specific clamping. Its VBR and VC apply equally in both directions, making it unsuitable for applications where forward conduction must be avoided, such as DC power rail protection with defined polarity.
BZW04-9V4BHE3/54 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:
- -
- 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)
BZW04-9V4BHE3/54 FAQ
1.How can I place an order for BZW04-9V4BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-9V4BHE3/54 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 BZW04-9V4BHE3/54 reliable?
The price and inventory of BZW04-9V4BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-9V4BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-9V4BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-9V4BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-9V4BHE3/54?
BZW04-9V4BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-9V4BHE3/54 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 BZW04-9V4BHE3/54?
For technical support, including BZW04-9V4BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-9V4BHE3/54 requirements.
6.How does Aetrix verify that BZW04-9V4BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-9V4BHE3/54 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 BZW04-9V4BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-9V4BHE3/54?
All BZW04-9V4BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-9V4BHE3/54, 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 BZW04-9V4BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04-9V4BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-9V4BHE3/54 Tags
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