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Vishay General Semiconductor - Diodes Division BZW04P26-E3/54
- Part No.:
- BZW04P26-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P26-E3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,695
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Product details
Overview
BZW04P26-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 25.6 V stand-off voltage (VWM), 41.5 V maximum clamping voltage (VC) at 9.6 A peak pulse current (IPPM), and 400 W peak pulse power capability with a 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD in industrial and automotive electronics.
For engineers reviewing the BZW04P26-E3/54 datasheet, BZW04P26-E3/54 pinout, BZW04P26-E3/54 application, or BZW04P26-E3/54 equivalent, key selection criteria include its DO-204AL (DO-41) axial package, AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and bi-directional symmetry enabling use on AC-coupled or floating lines without polarity concerns.
Technical Context
This bi-directional TVS diode operates symmetrically in both forward and reverse bias, delivering consistent clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the 10/1000 µs waveform rating reflects real-world surge immunity under repetitive 0.01% duty cycle conditions.
The device complies with ANSI/IEEE C62.35 surge standards and exhibits a temperature coefficient of breakdown voltage of +0.097 %/°C - critical for thermal stability across automotive (-40 °C to +125 °C ambient) and industrial operating ranges. Its 1.5 W steady-state power dissipation supports continuous operation in low-duty-cycle protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous working voltage before conduction; defines safe operating margin for 24 V nominal systems. |
| VC @ IPPM | 41.5 V - Clamped voltage at 9.6 A peak pulse; limits downstream component stress during 10/1000 µs surges. |
| IPPM | 9.6 A - Peak pulse current handling per 10/1000 µs waveform; determines survivability against IEC 61000-4-5 Level 3 surges. |
| PPPM | 400 W - Peak pulse power rating; enables protection of medium-energy transients without thermal runaway. |
| TJ max | 175 °C - Maximum junction temperature; supports high-temperature environments including under-hood automotive locations. |
| Package | DO-204AL (DO-41) - Axial-leaded, UL 94 V-0 molded epoxy package compatible with through-hole assembly and manual rework. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
DO-204AL (DO-41) axial package with two unmarked leads; bi-directional construction means no cathode marking and symmetrical terminal function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (either lead) | Bi-directional surge path | Both terminals serve identical roles - current flows symmetrically during positive or negative transients; no polarity dependency in circuit layout. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling and humidity stress. |
| 400 W peak pulse power (10/1000 µs) | Provides robust immunity against common lightning-induced and inductive-switching transients in 24 V systems. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive downstream ICs. |
| RoHS-compliant, matte tin-plated leads | Enables lead-free soldering per J-STD-002 and JESD22-B102, with JESD201 Class 1A whisker resistance. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bi-directional TVS clamping transient energy before it reaches MCU power inputs and CAN transceivers. Use Value: Withstands 400 W surges and maintains clamping below 42 V, preserving 3.3 V/5 V regulator input integrity and preventing brownout resets. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Fast-response shunt device absorbing ESD and cable discharge events on 4–20 mA or 0–10 V signal lines. Use Value: Sub-1 ns response and 41.5 V clamping prevent latch-up or damage to precision op-amps and ADC front-ends during field maintenance. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered Ethernet switches and remote PHY devices connected to centralized 48 V DC distribution. IC Role / Device Role / Timing Role: Standoff-rated TVS placed at DC input connector to clamp induced surges from nearby AC mains or lightning coupling. Use Value: 25.6 V VWM allows reliable operation across 48 V nominal range with derating; DO-41 form factor fits compact board layouts near connectors. |
Use Scenario: Protecting gate drivers and microcontrollers in washing machine motor inverters exposed to back-EMF from brushed/BLDC motors. IC Role / Device Role / Timing Role: Bidirectional suppression of commutation spikes on half-bridge DC bus and logic-level control lines. Use Value: Symmetrical clamping prevents false triggering of level-shifted gate signals and eliminates need for dual uni-directional devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA | DO-214AA (SMB) surface-mount package; same 26 V VWM, but 600 W PPPM and 17.3 A IPPM. | Higher surge capacity but requires PCB re-layout for SMT; lacks AEC-Q101 qualification in standard grade. | Select SMBJ26CA only when higher surge margin is required and SMT assembly is available. |
| 1.5KE27CA | DO-201AD (axial) package; 27 V VWM, 400 W PPPM, but 13.3 A IPPM and no AEC-Q101 qualification. | Higher peak current rating but wider VBR tolerance (±10%) and lower thermal robustness (TJ max = 150 °C). | Choose 1.5KE27CA for cost-sensitive commercial designs where AEC-Q101 is not mandated. |
Compared with SMBJ26CA and 1.5KE27CA, BZW04P26-E3/54 offers AEC-Q101 validation, tighter VBR tolerance (±5.5%), and optimized thermal design for through-hole mounting in high-reliability automotive and industrial environments - making it the preferred choice where qualification and mechanical robustness are mandatory.
Availability
BZW04P26-E3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for BZW04P26-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, efficiency, and application-specific optimization.
The BZW04P series is part of Vishay's TransZorb® TVS platform engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and precise clamping are essential.
FAQ
What is the clamping voltage of BZW04P26-E3/54 under a 10/1000 µs surge?
The BZW04P26-E3/54 clamps to a maximum of 41.5 V when subjected to its rated 9.6 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see limited overvoltage stress during standardized surge events. The clamping performance is symmetric for both polarities due to its bi-directional architecture.
Is BZW04P26-E3/54 suitable for automotive applications?
Yes, BZW04P26-E3/54 is AEC-Q101 qualified and specifically designed for automotive use. Its 175 °C maximum junction temperature, glass-passivated junction, and rigorous qualification testing (including temperature cycling and HTRB) validate its reliability in under-hood and body-control module environments. The "HE3" variant is explicitly AEC-Q101 certified, and the E3/54 suffix denotes RoHS-compliant commercial grade with optional AEC-Q101 availability.
How does the bi-directional nature of BZW04P26-E3/54 affect circuit placement?
The bi-directional structure of BZW04P26-E3/54 eliminates polarity constraints - either lead can connect to line or ground, simplifying layout on AC-coupled, floating, or differential signal paths. This avoids errors from cathode misorientation and enables single-device protection for bidirectional buses like RS-485 or isolated sensor outputs without additional diodes or layout verification.
What is the standoff voltage (VWM) and why is it important for BZW04P26-E3/54?
The standoff voltage VWM of BZW04P26-E3/54 is 25.6 V - the maximum continuous DC or RMS voltage the device blocks without significant leakage. It must exceed the normal operating voltage of the protected line (e.g., 24 V systems) to prevent power loss or thermal stress during steady state, while remaining low enough to ensure timely clamping during overvoltage events. This balance defines the protection window.
Can BZW04P26-E3/54 be used in place of a uni-directional TVS diode?
BZW04P26-E3/54 can replace a uni-directional TVS only if the circuit is inherently symmetric or referenced to a stable midpoint (e.g., split-rail supplies or differential pairs). Unlike uni-directional types, it conducts equally in both directions - so using it on a grounded DC rail may cause unintended conduction during normal forward bias. Always verify system topology and voltage reference before substitution.
BZW04P26-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):
- 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)
BZW04P26-E3/54 FAQ
1.How can I place an order for BZW04P26-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P26-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 BZW04P26-E3/54 reliable?
The price and inventory of BZW04P26-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 BZW04P26-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P26-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P26-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P26-E3/54?
BZW04P26-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P26-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 BZW04P26-E3/54?
For technical support, including BZW04P26-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P26-E3/54 requirements.
6.How does Aetrix verify that BZW04P26-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P26-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 BZW04P26-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P26-E3/54?
All BZW04P26-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P26-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 BZW04P26-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P26-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P26-E3/54 Tags
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