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Vishay General Semiconductor - Diodes Division BZW04-26B-E3/54
- Part No.:
- BZW04-26B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-26B-E3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
BZW04-26B-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 a 25.6 V standoff voltage (VWM), 28.5–31.5 V breakdown voltage (VBR) at 1 mA test current, and 41.5 V maximum clamping voltage (VC) at 9.6 A peak pulse current (IPPM), enabling robust protection of sensitive ICs and MOSFETs against ESD and inductive switching surges.
For engineers reviewing the BZW04-26B-E3/54 datasheet, BZW04-26B-E3/54 pinout, BZW04-26B-E3/54 application, or BZW04-26B-E3/54 equivalent, this device delivers 400 W peak pulse power (10/1000 µs), operates from –55 °C to +175 °C, and meets AEC-Q101 qualification - critical for automotive sensor interfaces, industrial I/O protection, and telecom line surge immunity design validation.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance. Its symmetrical clamping behavior applies identically in both directions, eliminating polarity concerns in AC-coupled or differential signal paths.
The device sustains 400 W peak pulse power per 10/1000 µs waveform with 0.01% duty cycle, and exhibits a temperature coefficient of VBR at +0.097 %/°C - enabling predictable voltage drift over automotive and industrial temperature ranges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; defines safe working margin below clamping threshold. |
| VBR min/max | 28.5 V / 31.5 V at IT = 1 mA - verified breakdown range ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 41.5 V at 9.6 A - clamping voltage under standardized 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 400 W - peak pulse power handling capability; supports repeated surge events in motor drive or relay control environments. |
| Operating TJ | –55 °C to +175 °C - extended junction temperature range enables use in under-hood automotive and high-ambient industrial settings. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, temperature cycling, and ESD testing per JESD47. |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with matte tin-plated leads, UL 94 V-0 molded epoxy body. |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, cylindrical epoxy body, 2.0–2.7 mm diameter, 5.2 mm lead length minimum, RoHS-compliant matte tin plating. Bidirectional construction means no cathode marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical bidirectional clamping: either terminal serves as input or return; no polarity dependency in PCB layout. |
| Leads (anode & cathode) | PCB mechanical and thermal interface | Matte tin-plated, solderable per J-STD-002; supports 275 °C solder dip (10 s max); provides mechanical strain relief and heat dissipation path. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under humidity and thermal stress; eliminates junction corrosion risk. |
| 400 W peak pulse power (10/1000 µs) | Supports high-energy transients from inductive loads (e.g., solenoids, relays) without degradation over rated duty cycle. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sub-5 V logic interfaces. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
| UL 94 V-0 flammability rating | Molding compound self-extinguishes under flame exposure - required for safety-critical industrial and transportation systems. |
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 entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 1/2/5a stress while surviving 175 °C under-hood ambient conditions. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges (e.g., valve actuator switching). IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V DC input channels, paired with series impedance for current limiting. Use Value: Withstands repetitive 400 W surges at 0.01% duty cycle, ensuring >10-year field life in factory automation environments. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHYs and RS-485 transceivers in networked building management systems exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level protection device downstream of gas discharge tubes, clamping residual energy to <41.5 V. Use Value: Symmetric bidirectional response matches differential signaling requirements; 1 µA max leakage preserves receiver sensitivity. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-the-line TVS mounted at motor terminals to clamp inductive kickback before it propagates into MCU power rails. Use Value: 400 W rating handles peak energy from 100 W motors; DO-41 axial form factor allows direct lead-through mounting on motor housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA | Surface-mount SMB package (vs. DO-41 through-hole); same 26 V VWM, but 300 W PPPM (lower than BZW04-26B-E3/54's 400 W). | Preferred for space-constrained PCBs; less suitable for high-reliability through-hole assemblies or high-temperature mechanical mounting. | Select SMBJ26CA only when board real estate is limited and peak surge energy remains ≤300 W. |
| P6KE27CA | DO-15 package; 27 V VWM, 600 W PPPM, but higher clamping voltage (45.7 V vs. 41.5 V) and no AEC-Q101 qualification. | Acceptable for industrial non-automotive use where higher clamping is tolerable and qualification is not mandated. | Choose P6KE27CA for cost-sensitive, non-automotive designs requiring higher pulse power - but verify system-level clamping margin. |
Compared with SMBJ26CA and P6KE27CA, BZW04-26B-E3/54 uniquely combines through-hole mechanical robustness, 400 W pulse rating, AEC-Q101 qualification, and low 41.5 V clamping - making it optimal for automotive and high-reliability industrial deployments where both mechanical stability and precise voltage limiting are essential.
Availability
BZW04-26B-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line surge immunity requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BZW04-26B-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, power handling, and automotive qualification.
The BZW04 series was developed specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and 400 W pulse capability are mandatory.
FAQ
What is the clamping voltage of BZW04-26B-E3/54 under a 10/1000 µs surge?
The BZW04-26B-E3/54 has a maximum clamping voltage (VC) of 41.5 V at 9.6 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet Document Number 88316, page 2.
Is BZW04-26B-E3/54 suitable for automotive applications?
Yes, BZW04-26B-E3/54 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number 88316, page 4, Note 1). Its –55 °C to +175 °C operating junction temperature range, glass-passivated junction, and 400 W surge capability make it appropriate for under-hood and body electronics applications.
Does BZW04-26B-E3/54 have polarity markings?
No, BZW04-26B-E3/54 is a bidirectional TVS diode and carries no polarity marking. As confirmed in the "Mechanical Data" section of the datasheet, bidirectional types have no color band or other cathode indicator - both terminals are functionally identical and interchangeable in circuit layout.
What is the standoff voltage (VWM) specification for BZW04-26B-E3/54?
The standoff voltage (VWM) for BZW04-26B-E3/54 is 25.6 V, representing the maximum DC or RMS voltage the device can withstand continuously without exceeding 1 µA reverse leakage current. This value is listed in the Electrical Characteristics table on page 2 of the Vishay datasheet 88316.
Which package type does BZW04-26B-E3/54 use?
BZW04-26B-E3/54 uses the DO-41 (DO-204AL) axial-leaded package, featuring a UL 94 V-0 compliant epoxy body, matte tin-plated leads, and dimensions specified in inches/mm on page 5 of the Vishay datasheet 88316. The package supports through-hole mounting and 275 °C solder dip per JESD 22-B106.
BZW04-26B-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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.5V
- Current - Peak Pulse (10/1000µs):
- 9.6A
- 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)
BZW04-26B-E3/54 FAQ
1.How can I place an order for BZW04-26B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-26B-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 BZW04-26B-E3/54 reliable?
The price and inventory of BZW04-26B-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 BZW04-26B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-26B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-26B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-26B-E3/54?
BZW04-26B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-26B-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 BZW04-26B-E3/54?
For technical support, including BZW04-26B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-26B-E3/54 requirements.
6.How does Aetrix verify that BZW04-26B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-26B-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 BZW04-26B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-26B-E3/54?
All BZW04-26B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-26B-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 BZW04-26B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-26B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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