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Vishay General Semiconductor - Diodes Division BZW04P26-E3/73
- Part No.:
- BZW04P26-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P26-E3/73.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,981
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Product details
Overview
BZW04P26-E3/73 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in signal and power 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 rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P26-E3/73 datasheet, BZW04P26-E3/73 pinout, BZW04P26-E3/73 application, or BZW04P26-E3/73 equivalent, key selection criteria include its DO-41 package compatibility, AEC-Q101 qualification, bi-directional surge handling, low leakage (<1 μA at VWM), and temperature coefficient of breakdown voltage (0.097 %/°C).
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling protection against voltage transients induced by inductive load switching or ESD without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the 175 °C maximum junction temperature supports operation in under-hood automotive environments.
The device complies with ANSI/IEEE C62.35 surge standards and delivers consistent clamping performance across its specified operating temperature range (–55 °C to +175 °C). Its 1.5 W steady-state power dissipation and 0.67 Ω typical incremental surge resistance support reliable energy absorption during repetitive transient events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VC @ IPPM | 41.5 V - Clamped voltage at 9.6 A peak pulse current (10/1000 μs); determines protected circuit's maximum transient exposure level. |
| IPPM | 9.6 A - Peak pulse current capability under standard 10/1000 μs waveform; quantifies surge energy handling capacity. |
| PPPM | 400 W - Peak pulse power rating; enables robust protection against lightning-induced surges and inductive kickback. |
| TJ max. | +175 °C - Maximum junction temperature; supports deployment in high-temperature automotive and industrial environments. |
| Leakage @ VWM | <1 μA - Reverse leakage current at stand-off voltage; ensures minimal power loss and signal integrity in standby operation. |
| Temp. Coeff. VBR | 0.097 %/°C - Temperature coefficient of breakdown voltage; enables predictable voltage shift across operating range. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. No polarity marking - bi-directional functionality confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | Either end serves as input/output terminal; no cathode band - enables polarity-agnostic placement on PCB. |
| Lead 1 / Lead 2 | Connection interface to protected line | Direct series connection between source and load; requires minimal trace inductance for optimal clamping response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| Glass passivated chip junction | Ensures long-term reliability and stable electrical characteristics under thermal cycling and humidity exposure. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) in properly designed circuits. |
| Low incremental surge resistance | ~0.67 Ω typical - minimizes voltage overshoot during fast-rising transients and improves clamping precision. |
| RoHS-compliant, matte tin leads | Meets JESD201 Class 1A whisker resistance; suitable for lead-free reflow and wave soldering processes. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional clamping element placed across differential or single-ended signal lines upstream of IC input pins. Use Value: Limits transient voltage to ≤41.5 V during 9.6 A surges, preventing latch-up or gate oxide damage in downstream ASICs. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series impedance and filtering. Use Value: Withstands repetitive 400 W transients without degradation, maintaining protection integrity over 10+ year industrial service life. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding RS-485 transceiver ports in base station backhaul equipment from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired bi-directional TVS on each line (A/B) referenced to ground, forming low-inductance protection network. Use Value: Clamps 10/1000 μs surges to ≤41.5 V within <1 ns, preserving signal integrity and meeting GR-1089-CORE immunity requirements. |
Use Scenario: Adding secondary-level surge suppression on 12 V DC output rails of wall-mounted AC/DC adapters. IC Role / Device Role / Timing Role: Final-stage protector downstream of primary MOV and filter stage, absorbing residual fast transients. Use Value: Low leakage (<1 μA) avoids standby power waste; DO-41 footprint allows retrofit into existing adapter PCB layouts. |
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 | Same VWM (26 V), higher IPPM (12.3 A), lower VC (42.1 V), SMC package (larger footprint) | Preferred where higher surge margin or automated SMT assembly is required; not drop-in compatible with DO-41 through-hole layout. | Select SMBJ26CA when board space permits SMC and higher peak current headroom is needed. |
| P6KE27CA | Higher VWM (27 V), same VC (41.5 V), lower PPPM (600 W but derated faster), DO-15 package (longer leads, higher inductance) | Suitable for legacy designs using DO-15; less optimal for fast transients due to higher parasitic inductance. | Choose P6KE27CA only for backward-compatible DO-15 replacements where layout cannot be modified. |
Compared with SMBJ26CA and P6KE27CA, BZW04P26-E3/73 offers AEC-Q101 qualification, tighter VBR tolerance (±5%), and optimized thermal resistance in DO-41 - making it the preferred choice for new automotive and high-reliability industrial designs requiring proven qualification and compact through-hole integration.
Availability
BZW04P26-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and long-lifecycle availability.
Supply support for BZW04P26-E3/73 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, qualification, and application-specific performance.
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 validation and stable clamping are mandatory.
FAQ
What is the exact breakdown voltage range for BZW04P26-E3/73?
The BZW04P26-E3/73 has a minimum breakdown voltage (VBR) of 28.5 V and a maximum of 33.0 V at 1.0 mA test current, per Vishay Document 88316. This 4.5 V spread reflects manufacturing tolerance and ensures reliable turn-on above the 25.6 V stand-off voltage while maintaining margin below the 41.5 V clamping limit. The BZW04P26-E3/73 achieves this specification with tight process control on its glass-passivated junction.
Is BZW04P26-E3/73 suitable for automotive applications?
Yes, BZW04P26-E3/73 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 12-Jul-11. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life - validating its use in engine control units, body electronics, and ADAS sensor interfaces. The BZW04P26-E3/73 also meets RoHS and REACH requirements, supporting full automotive supply chain compliance.
What does the "E3/73" suffix mean in BZW04P26-E3/73?
The "E3" denotes RoHS-compliant, commercial-grade packaging with matte tin-plated leads meeting JESD201 Class 1A whisker resistance. The "/73" indicates tape-and-reel packaging in 73 mm wide carrier tape, per Vishay's ordering conventions. This differs from "/54" (54 mm tape) and confirms the BZW04P26-E3/73 is supplied in industry-standard format for automated insertion equipment.
How does BZW04P26-E3/73 compare to uni-directional TVS diodes in circuit design?
BZW04P26-E3/73 eliminates polarity concerns - it protects against positive and negative transients without requiring orientation checks during assembly. Unlike uni-directional types (e.g., BZW04P26-E3), it needs no series blocking diode for AC-coupled lines and simplifies layout in differential interfaces like RS-485. The BZW04P26-E3/73 achieves this via symmetrical junction construction, verified by identical electrical characteristics in both directions.
What is the maximum allowable lead temperature during soldering for BZW04P26-E3/73?
The maximum solder dip temperature for BZW04P26-E3/73 is 275 °C for up to 10 seconds, per JESD22-B106. This applies to wave soldering and manual dip processes. For reflow, the device follows standard Pb-free profile limits (peak 260 °C), and its DO-41 package withstands thermal shock due to glass passivation. Always verify thermal profiles using actual board mass and oven calibration to avoid exceeding the BZW04P26-E3/73's 175 °C TJ max.
BZW04P26-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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-E3/73 FAQ
1.How can I place an order for BZW04P26-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P26-E3/73 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-E3/73 reliable?
The price and inventory of BZW04P26-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P26-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P26-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P26-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P26-E3/73?
BZW04P26-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P26-E3/73 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-E3/73?
For technical support, including BZW04P26-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P26-E3/73 requirements.
6.How does Aetrix verify that BZW04P26-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P26-E3/73 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-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P26-E3/73?
All BZW04P26-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P26-E3/73, 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-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P26-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P26-E3/73 Tags
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