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Vishay General Semiconductor - Diodes Division BZW04P376B-E3/54
- Part No.:
- BZW04P376B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P376B-E3/54.pdf
- Description:
- TVS DIODE 376VWM 603VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,589
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Product details
Overview
BZW04P376B-E3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 376 V standoff voltage (VWM), 603 V clamping voltage (VC) at 0.67 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), making it suitable for industrial motor drive DC bus protection and telecom line surge suppression.
For engineers reviewing the BZW04P376B-E3/54 datasheet, BZW04P376B-E3/54 pinout, BZW04P376B-E3/54 application, or BZW04P376B-E3/54 equivalent, key selection criteria include its DO-204AL (DO-41) axial package, bi-directional symmetry, AEC-Q101 qualification status, and verified clamping performance under repetitive 10/1000 µs transients.
Technical Context
This device operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown range (418–484 V at 1 mA test current), it avalanches rapidly to limit downstream voltage to ≤603 V. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and low incremental surge resistance across temperature.
Designed for bi-directional use, BZW04P376B-E3/54 has no polarity marking and exhibits identical electrical characteristics in both directions - critical for AC-coupled or floating-bus applications such as PoE injectors and isolated sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 376 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC working margin. |
| VBR (min/max) | 418 V / 484 V at 1 mA - Breakdown voltage range confirming reliable turn-on threshold under production tolerance. |
| VC @ IPPM | 603 V at 0.67 A (10/1000 µs) - Clamped voltage during worst-case surge; determines protected circuit's maximum stress level. |
| PPPM | 400 W - Peak pulse power handling capability; enables survivability against IEC 61000-4-5 Level 4 surges on 48 V+ systems. |
| IPPM | 0.67 A - Peak pulse current derived from PPPM/VC; used with waveform to validate surge immunity margin. |
| TJ max | 175 °C - Maximum junction temperature; supports operation in high-ambient industrial enclosures without derating. |
| Package | DO-204AL (DO-41) - Standard axial-leaded package with matte tin-plated leads, UL 94 V-0 molding, and JESD22-B102 solderability. |
Pinout & Package
DO-204AL (DO-41) axial package: two unmarked leads; bi-directional construction means either lead may serve as anode or cathode depending on transient polarity. Leads are matte tin-plated, compliant with J-STD-002 and JESD22-B102, and rated for solder dip at 275 °C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (either lead) | Bi-directional avalanche junction terminal | No polarity marking; symmetric conduction enables protection of AC or floating nodes without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable leakage current (<1 µA at VWM) and long-term reliability under thermal cycling and humidity. |
| 400 W peak pulse power (10/1000 µs) | Validated surge handling for IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) testing on high-voltage DC buses. |
| AEC-Q101 qualified | Qualified for automotive-grade reliability including HTOL, temperature cycling, and ESD per JESD47; suitable for under-hood ECUs. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., inductive switch-off), improving protection fidelity. |
| RoHS-compliant, UL 94 V-0 molding | Meets environmental compliance and flammability safety requirements for industrial and telecom equipment certifications. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 380–400 V DC link capacitors against switching transients and regenerative energy spikes in VFD inverters. IC Role / Device Role / Timing Role: Shunt TVS diode placed across DC bus terminals to clamp voltage excursions above 376 V. Use Value: Limits bus overvoltage to ≤603 V during 0.67 A surges, preventing IGBT gate oxide damage and capacitor over-stress. |
Use Scenario: Surge suppression on -48 V or +24 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional clamping device on primary-side DC input, coordinated with upstream GDTs. Use Value: Maintains system uptime by absorbing up to 400 W of transient energy without degradation, meeting GR-1089-CORE Level 3. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
Use Scenario: Protection of LIN/CAN transceiver power pins and microcontroller supply rails in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary-stage TVS after primary filter inductors, providing final clamping at 376 V standoff. Use Value: AEC-Q101 qualification ensures survival through 1000+ temperature cycles and 1000 V ESD events, supporting 15-year vehicle life. |
Use Scenario: Guarding analog front-end inputs of 4–20 mA loop-powered sensors in factory automation against field wiring transients. IC Role / Device Role / Timing Role: Bi-directional TVS placed across differential signal pair or supply/return lines to suppress common-mode surges. Use Value: Symmetric clamping prevents signal inversion or latch-up during ±1 kV EFT bursts, preserving measurement 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 |
|---|---|---|---|
| SMBJ376CA | Same VWM (376 V) and bi-directionality, but SMB package (surface-mount); lower IPPM (0.55 A) and VC (612 V). | Requires PCB re-layout; better suited for space-constrained designs where axial leads are impractical. | Select SMBJ376CA only if board area is constrained and thermal coupling to copper pour can compensate for lower PPPM. |
| 1.5KE376CA | Higher PPPM (1500 W), same VWM and DO-204AL package, but larger body and higher VC (640 V). | Used where higher single-event surge margin is required, e.g., outdoor telecom cabinets with direct lightning exposure. | Choose 1.5KE376CA when system-level testing reveals insufficient margin with 400 W rating, accepting larger footprint and higher clamping. |
Compared with SMBJ376CA and 1.5KE376CA, BZW04P376B-E3/54 delivers optimal balance of axial-package manufacturability, AEC-Q101 qualification, and precise 603 V clamping - critical for cost-sensitive industrial drives where layout flexibility and automotive-grade reliability intersect.
Availability
BZW04P376B-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply and long-lifecycle support.
Supply support for BZW04P376B-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, and protection devices with emphasis on reliability and application-specific optimization.
The BZW04P series targets high-voltage transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the standoff voltage rating of BZW04P376B-E3/54?
The BZW04P376B-E3/54 has a standoff voltage (VWM) of 376 V - the maximum DC or RMS voltage that can be continuously applied without significant conduction. This value ensures compatibility with 400 V-class DC systems while maintaining adequate margin below the 418 V minimum breakdown voltage.
Is BZW04P376B-E3/54 suitable for automotive applications?
Yes, BZW04P376B-E3/54 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD. Its DO-204AL package and bi-directional clamping make it appropriate for protecting power rails and communication lines in automotive body control modules and ADAS power supplies.
What is the clamping voltage of BZW04P376B-E3/54 under surge conditions?
The BZW04P376B-E3/54 clamps to a maximum of 603 V when subjected to its rated peak pulse current of 0.67 A with a 10/1000 µs waveform. This clamping voltage is measured across the device terminals and defines the upper voltage limit imposed on protected circuitry during transient events.
Does BZW04P376B-E3/54 have polarity markings?
No, BZW04P376B-E3/54 is a bi-directional TVS diode and carries no polarity marking on its DO-204AL package. Both leads are functionally identical, enabling installation without orientation concerns - essential for protecting AC-coupled signals or floating DC buses.
What package type does BZW04P376B-E3/54 use?
BZW04P376B-E3/54 uses the DO-204AL (commonly known as DO-41) axial-leaded package. It features matte tin-plated leads compliant with J-STD-002, UL 94 V-0 epoxy molding, and mechanical dimensions conforming to JEDEC standards for manual or wave-solder assembly.
BZW04P376B-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 376V
- Voltage - Breakdown (Min):
- 418V
- Voltage - Clamping (Max) @ Ipp:
- 603V
- Current - Peak Pulse (10/1000µs):
- 670mA
- 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)
BZW04P376B-E3/54 FAQ
1.How can I place an order for BZW04P376B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P376B-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 BZW04P376B-E3/54 reliable?
The price and inventory of BZW04P376B-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 BZW04P376B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P376B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P376B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P376B-E3/54?
BZW04P376B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P376B-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 BZW04P376B-E3/54?
For technical support, including BZW04P376B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P376B-E3/54 requirements.
6.How does Aetrix verify that BZW04P376B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P376B-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 BZW04P376B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P376B-E3/54?
All BZW04P376B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P376B-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 BZW04P376B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P376B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P376B-E3/54 Tags
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