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Vishay General Semiconductor - Diodes Division BZW04-376-E3/54
- Part No.:
- BZW04-376-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-376-E3/54.pdf
- Description:
- TVS DIODE 376VWM 603VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,081
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Product details
Overview
BZW04-376-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, rated for 376 V standoff voltage (VWM), 418–462 V breakdown voltage (VBR), and 603 A peak pulse current (IPPM) under 10/1000 μs waveform. It delivers 400 W peak pulse power with 0.67 μA max reverse leakage at VWM and operates from –55 °C to +175 °C - designed for robust overvoltage protection on industrial sensor signal lines and power rails.
For engineers reviewing the BZW04-376-E3/54 datasheet, BZW04-376-E3/54 pinout, BZW04-376-E3/54 application, or BZW04-376-E3/54 equivalent, this page provides verified electrical parameters, DO-41 terminal mapping, clamping behavior under surge conditions, AEC-Q101 qualification status, and direct alternatives for high-voltage transient suppression in automotive and industrial control systems.
Technical Context
This device is a glass-passivated, bidirectional TVS diode optimized for fast response (<1 ns) and low incremental surge resistance. Its symmetrical clamping characteristic ensures identical protection in both polarities, with a temperature coefficient of VBR at 0.110 %/°C - critical for stable performance across wide thermal ranges.
The BZW04-376-E3/54 uses a DO-41 (DO-204AL) axial-leaded package with matte tin-plated leads compliant to J-STD-002 and JESD22-B102. It meets UL 94 V-0 flammability rating and is RoHS-compliant (E3 suffix); the "-E3/54" denotes 550-unit 13" paper tape and reel packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 376 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 418 V / 462 V at 1.0 mA test current - defines reliable conduction onset under transient stress |
| VC @ IPPM | 603 V - clamped voltage during 10/1000 μs surge, limiting downstream circuit stress |
| IPPM | 603 A - peak surge current capability without failure, enabling IEC 61000-4-5 Level 4 compliance |
| PPPM | 400 W - peak pulse power handling per 10/1000 μs waveform, derated above 25 °C |
| ID @ VWM | 0.67 μA - ultra-low leakage preserves signal integrity in high-impedance sensing paths |
| TJ max. | +175 °C - supports operation in under-hood automotive and industrial power-conversion environments |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with UL 94 V-0 rating. Leads are matte tin-plated and solderable per J-STD-002; no polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical terminals enable bidirectional clamping - either lead connects to protected line or ground without functional impact |
| Lead 1 | Terminal interface | Matte tin-plated, 0.028–0.034" diameter, supports wave/solder dip up to 275 °C for 10 s |
| Lead 2 | Terminal interface | Matches Lead 1 in material, plating, and mechanical specs - enables automated axial insertion and reflow compatibility |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge events |
| 400 W peak pulse power (10/1000 μs) | Supports high-energy transients per IEC 61000-4-5 without degradation |
| AEC-Q101 qualified (HE3 variant only) | BZW04-376-E3/54 is commercial grade; HE3 version required for automotive qualification |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off) |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed industrial enclosures and power supplies |
Applications
| Industrial Motor Control | Automotive Sensor Protection |
|---|---|
Use Scenario: Protecting encoder feedback lines and Hall-effect sensor outputs from commutation spikes in 3-phase inverters. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground to shunt inductive kickback. Use Value: Limits transient voltage to ≤603 V, preventing damage to 3.3 V/5 V analog front-ends while maintaining <0.67 μA DC leakage. | Use Scenario: Safeguarding LIN bus transceivers and pressure sensor interfaces against load-dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff protector on bidirectional data line, activated only during >376 V excursions. Use Value: Maintains signal fidelity during normal operation and clamps within nanoseconds when ESD or ISO 7637-2 Pulse 5a occurs. |
| Telecom Power Feeds | Renewable Energy Monitoring |
Use Scenario: Overvoltage suppression on -48 V DC power inputs in base station remote radio units. IC Role / Device Role / Timing Role: Primary surge limiter upstream of DC/DC converters and PMICs. Use Value: Withstands 400 W pulses without degradation, enabling compliance with GR-1089-CORE lightning immunity requirements. | Use Scenario: Protecting string-monitoring ICs in solar PV combiner boxes exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-VWM TVS placed across voltage-sense inputs referenced to floating array ground. Use Value: 376 V VWM matches typical 1000 V DC system ratings, allowing safe operation below clamp threshold during normal MPPT tracking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ376A | Surface-mount SMB package (vs. axial DO-41); same 376 V VWM but unidirectional only | Requires PCB layout change and polarity-aware placement; lacks bidirectional symmetry | Select when space-constrained layouts demand SMT and circuit topology permits unidirectional grounding |
| P6SMB376A | Same SMB package and unidirectional configuration; 400 W rating but higher clamping voltage (648 V vs. 603 V) | Higher VC increases stress on downstream ICs; not drop-in for bidirectional signal lines | Choose only if existing design already uses P6SMB series and can tolerate 45 V higher clamping |
Compared with BZW04-376-E3/54, SMBJ376A offers SMT compatibility but sacrifices bidirectionality and requires polarity management, while P6SMB376A trades higher clamping voltage for broader distributor availability - neither matches the axial, symmetrical, low-leakage profile of BZW04-376-E3/54 in legacy through-hole industrial designs.
Availability
BZW04-376-E3/54 is available at Aetrix Electronics and suitable for industrial motor control, telecom power feeds, and renewable energy monitoring requiring stable component supply and long-lifecycle support.
Supply support for BZW04-376-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 supplier of discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade qualification.
The BZW04 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting industrial automation, transportation, and infrastructure where sustained surge immunity and thermal stability are mandatory.
FAQ
What is the clamping voltage of BZW04-376-E3/54 under a 10/1000 μs surge?
The BZW04-376-E3/54 has a maximum clamping voltage (VC) of 603 V when subjected to its rated peak pulse current (IPPM) of 603 A using the standard 10/1000 μs waveform. This value is measured at the device terminals and represents the upper limit of voltage seen by downstream circuitry during surge events - critical for ensuring connected ICs remain within absolute maximum ratings.
Is BZW04-376-E3/54 bidirectional or unidirectional?
BZW04-376-E3/54 is a bidirectional TVS diode, meaning it provides symmetrical transient suppression in both polarities without polarity marking on the DO-41 package. Its electrical characteristics - including VBR, VC, and IPPM - apply identically in either direction, making it ideal for AC-coupled signal lines, differential buses, and floating-ground sensor interfaces where voltage reversals may occur.
Does BZW04-376-E3/54 meet AEC-Q101 qualification?
No - BZW04-376-E3/54 carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. For AEC-Q101 qualification, the HE3 suffix variant (e.g., BZW04-376HE3/54) must be selected. The HE3 version undergoes additional stress testing per AEC-Q101 and meets JESD201 Class 2 whisker resistance, whereas BZW04-376-E3/54 is intended for industrial and telecom applications outside automotive safety-critical domains.
What is the maximum operating temperature for BZW04-376-E3/54?
The BZW04-376-E3/54 has a maximum junction temperature (TJ max.) of +175 °C and an operating junction/storage temperature range of –55 °C to +175 °C. This wide thermal envelope supports deployment in under-hood automotive modules, industrial power converters, and outdoor telecom equipment - provided PCB layout and ambient airflow maintain junction temperature within limits during repetitive surge events.
Can BZW04-376-E3/54 replace BZW04-376B in a design?
Yes - BZW04-376-E3/54 is the commercial-grade, RoHS-compliant, tape-and-reel packaged version of the BZW04-376B bidirectional TVS. The "E3/54" suffix denotes packaging (550 pcs/reel, 13" paper tape) and plating compliance (JESD201 Class 1A whisker test), while electrical and thermal specifications match those of BZW04-376B exactly. No circuit or layout changes are needed for substitution.
BZW04-376-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:
- 1
- Bidirectional Channels:
- -
- 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)
BZW04-376-E3/54 FAQ
1.How can I place an order for BZW04-376-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-376-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 BZW04-376-E3/54 reliable?
The price and inventory of BZW04-376-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 BZW04-376-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-376-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-376-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-376-E3/54?
BZW04-376-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-376-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 BZW04-376-E3/54?
For technical support, including BZW04-376-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-376-E3/54 requirements.
6.How does Aetrix verify that BZW04-376-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-376-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 BZW04-376-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-376-E3/54?
All BZW04-376-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-376-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 BZW04-376-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-376-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-376-E3/54 Tags
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