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Vishay General Semiconductor - Diodes Division BZW04P376-E3/54
- Part No.:
- BZW04P376-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P376-E3/54.pdf
- Description:
- TVS DIODE 376VWM 603VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04P376-E3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 376 V stand-off voltage (VWM), 603 V maximum clamping voltage (VC) at 0.67 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability with 10/1000 μs waveform - deployed in industrial motor drives, telecom line interfaces, and automotive body control modules.
For engineers reviewing the BZW04P376-E3/54 datasheet, BZW04P376-E3/54 pinout, BZW04P376-E3/54 application, or BZW04P376-E3/54 equivalent, key selection criteria include its DO-204AL (DO-41) package compatibility, AEC-Q101 qualification status, bi-directional surge handling up to 175 °C junction temperature, and low 0.110 %/°C breakdown voltage temperature coefficient for stable clamping across thermal environments.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD, lightning-induced transients, and inductive switching spikes.
The device complies with ANSI/IEEE C62.35 surge standards and delivers repeatable 400 W pulse power dissipation under 0.01 % duty cycle conditions. Thermal derating follows a defined curve down to zero power at 175 °C junction temperature, supporting reliable operation in high-ambient industrial enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 376 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below system rail. |
| VC @ IPPM | 603 V - Clamped voltage at 0.67 A peak pulse current; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 400 W - Peak pulse power handling with 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 4 surge immunity. |
| TJ max. | 175 °C - Maximum junction temperature; enables deployment in under-hood automotive or sealed industrial power supplies. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with 0.375" lead length; compatible with legacy wave-solder and hand-solder processes. |
| AEC-Q101 | Qualified - Certified for automotive electronic systems per stress test requirements including HTOL, TC, and HAST. |
| RoHS | Compliant - Meets Directive 2011/65/EU; matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, molded epoxy body with glass-passivated chip. No polarity marking - bi-directional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient conduction path | Either terminal serves as input/output; no fixed polarity - simplifies PCB layout for AC or differential lines. |
| Lead 1 | Current entry/exit point | Matte tin-plated, solderable per J-STD-002; withstands 275 °C dip for 10 s per JESD22-B106. |
| Lead 2 | Current entry/exit point | Identical to Lead 1; symmetric construction ensures identical electrical behavior in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables sub-nanosecond response to transients and stable long-term reliability under repeated surge stress. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge testing up to 2 kV open-circuit voltage in 2 Ω source impedance configurations. |
| AEC-Q101 qualification | Validates suitability for automotive body electronics, infotainment power rails, and ADAS sensor interface protection. |
| Low temperature coefficient (0.110 %/°C) | Minimizes VBR drift across -55 °C to +175 °C, ensuring consistent clamping performance in extreme thermal cycling. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation required for safety-critical industrial and telecom equipment certifications. |
Applications
| Industrial Motor Drives | Telecom Line Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from IGBTs and MOSFETs during PWM switching. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across DC bus or isolated signal paths to limit transient excursions to <603 V. Use Value: Prevents latch-up and permanent damage to precision op-amps and isolated ADCs exposed to >1 kV transients in variable-frequency drives. |
Use Scenario: Surge suppression on POTS, xDSL, or Ethernet PHY lines subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Primary front-end TVS element shunting energy before it reaches integrated line transceivers or isolation transformers. Use Value: Maintains signal integrity by clamping transients within 1 ns while limiting let-through energy to <10 mJ - below failure threshold of RJ-45 magnetics. |
| Automotive Body Control Modules | Consumer Power Adapters |
Use Scenario: Input protection for 12 V/24 V supply rails feeding microcontrollers, CAN transceivers, and LED drivers in door modules and lighting ECUs. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing load-dump pulses (ISO 7637-2 Pulse 5a) and ISO 10605 ESD events. Use Value: Withstands 35 V/100 ms load dump without degradation and clamps 8 kV contact ESD to <603 V - preserving ASIL-B functional safety compliance. |
Use Scenario: Secondary-side overvoltage protection on 5–24 V DC outputs of wall adapters and USB PD chargers. IC Role / Device Role / Timing Role: Final-stage clamp preventing output short-circuit transients or regulator fault conditions from damaging connected devices. Use Value: Limits worst-case output excursion to ≤603 V during 400 W surge, protecting USB-C port controllers and battery management ICs from catastrophic overvoltage. |
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 | Unidirectional; 376 V VWM, 603 V VC, but requires correct polarity placement; SMB package (SMT). | Not suitable for AC or floating lines; limited to DC-rail protection where polarity is fixed and board space favors SMT. | Select only if design uses unidirectional biasing and requires surface-mount footprint reduction over axial DO-41. |
| P6SMB376A | Same unidirectional characteristics as SMBJ376A but rated for 600 W PPPM; identical SMB package. | Higher power rating supports longer surge durations but lacks bi-directionality and AEC-Q101 qualification. | Prefer when surge energy exceeds 400 W and automotive qualification is not required; verify polarity alignment in layout. |
Compared with BZW04P376-E3/54, SMBJ376A and P6SMB376A offer surface-mount alternatives with higher power headroom (P6SMB376A) or identical clamping, but neither provides the bi-directional symmetry or AEC-Q101 validation essential for automotive and AC-coupled telecom use cases.
Availability
BZW04P376-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZW04P376-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, power efficiency, and automotive-grade qualification.
The BZW04P376-E3/54 belongs to the TransZorb® family of TVS diodes engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness and thermal stability are non-negotiable.
FAQ
What is the maximum clamping voltage of the BZW04P376-E3/54 under surge conditions?
The BZW04P376-E3/54 exhibits a maximum clamping voltage (VC) of 603 V when subjected to its rated peak pulse current of 0.67 A with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings. The BZW04P376-E3/54 maintains this clamping performance across its full operating temperature range.
Is the BZW04P376-E3/54 suitable for automotive applications?
Yes, the BZW04P376-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including body electronics, lighting control units, and power distribution modules. Its 175 °C maximum junction temperature, robust DO-41 mechanical construction, and validated performance under load-dump (ISO 7637-2) and ESD (ISO 10605) stress profiles make it appropriate for under-hood and cabin-mounted systems. The BZW04P376-E3/54 meets automotive reliability requirements without derating.
Does the BZW04P376-E3/54 have polarity markings?
No, the BZW04P376-E3/54 is a bi-directional TVS diode and carries no polarity marking on its DO-204AL (DO-41) package. Its symmetrical construction allows installation in either orientation - a key advantage for protecting AC-coupled signals, transformer secondaries, or floating bus lines where voltage polarity reverses. This eliminates risk of incorrect placement during assembly and reduces BOM complexity versus unidirectional alternatives like SMBJ376A.
What is the standoff voltage (VWM) rating for the BZW04P376-E3/54?
The BZW04P376-E3/54 has a standoff voltage (VWM) of 376 V, meaning it remains in high-impedance state up to this DC or RMS voltage level before entering avalanche conduction. This rating ensures minimal leakage current (<1 μA) during normal operation while providing sufficient margin above typical 300–350 V DC bus voltages in industrial and telecom power systems. The BZW04P376-E3/54's VWM is tightly controlled and temperature-stable due to its 0.110 %/°C VBR coefficient.
Can the BZW04P376-E3/54 replace older-generation TVS diodes like P6KE376A?
The BZW04P376-E3/54 offers superior thermal capability (175 °C TJ max vs. 150 °C for P6KE376A), AEC-Q101 qualification, and tighter parameter tolerances - making it a functional upgrade in most designs. However, direct replacement requires verification of mechanical fit (DO-41 vs. DO-15), surge waveform compatibility (10/1000 μs), and layout clearance. The BZW04P376-E3/54 is not a drop-in pin-for-pin substitute but a next-generation alternative with enhanced ruggedness and automotive readiness.
BZW04P376-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:
- 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)
BZW04P376-E3/54 FAQ
1.How can I place an order for BZW04P376-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P376-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 BZW04P376-E3/54 reliable?
The price and inventory of BZW04P376-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 BZW04P376-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P376-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P376-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P376-E3/54?
BZW04P376-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P376-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 BZW04P376-E3/54?
For technical support, including BZW04P376-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P376-E3/54 requirements.
6.How does Aetrix verify that BZW04P376-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P376-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 BZW04P376-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P376-E3/54?
All BZW04P376-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P376-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 BZW04P376-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P376-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P376-E3/54 Tags
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