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Vishay General Semiconductor - Diodes Division BZW04P26HE3/54
- Part No.:
- BZW04P26HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P26HE3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,665
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Product details
Overview
BZW04P26HE3/54 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 (10/1000 µs waveform), making it suitable for automotive ECU input protection and industrial sensor interface circuits.
For engineers reviewing the BZW04P26HE3/54 datasheet, BZW04P26HE3/54 pinout, BZW04P26HE3/54 application, or BZW04P26HE3/54 equivalent, key selection considerations include its AEC-Q101 qualification, DO-204AL (DO-41) axial package, bi-directional symmetry, and verified clamping performance under repetitive surge conditions per IEC 61000-4-5.
Technical Context
This bi-directional TVS operates symmetrically in both polarities with identical breakdown (28.5–33.0 V), clamping (41.5 V), and leakage (<1 µA at 25.6 V) characteristics. Its glass-passivated junction ensures stable avalanche behavior and low incremental surge resistance, critical for fast transient suppression in automotive and industrial environments.
The device is rated for 175 °C maximum junction temperature and derated linearly above 25 °C ambient, supporting operation in under-hood and factory-floor applications. It meets JESD22-B102 solderability standards and JESD201 Class 2 whisker resistance (HE3 suffix), confirming suitability for high-reliability reflow and wave-soldered assemblies.
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. |
| VBR (min/max) | 28.5 V / 33.0 V - Breakdown voltage range at 1 mA test current; ensures reliable triggering across process and temperature variation. |
| VC @ IPPM | 41.5 V - Clamped voltage at 9.6 A peak pulse (10/1000 µs); limits downstream IC stress during 1 kV/0.5 Ω surge events. |
| PPPM | 400 W - Peak pulse power handling capability; supports repeated transients up to 0.01% duty cycle without degradation. |
| IPPM | 9.6 A - Maximum non-repetitive peak pulse current (10/1000 µs); determines minimum series impedance required for compliance. |
| TJmax | 175 °C - Maximum junction temperature rating; enables use in high-ambient environments such as engine control modules. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, temperature cycling, and HTRB testing per AEC standard. |
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. No polarity marking - bi-directional symmetry confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either lead functions identically as input/output terminal; no cathode band; enables placement flexibility on PCB. |
| Lead 1 | Terminal A | Standard axial lead; electrically interchangeable with Lead 2; requires no orientation check during assembly. |
| Lead 2 | Terminal B | Standard axial lead; identical electrical behavior to Lead 1; supports bidirectional surge current flow in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable, low-noise avalanche conduction and long-term parameter stability under thermal cycling. |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when paired with appropriate series impedance. |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive powertrain, body electronics, and ADAS sensor interfaces requiring zero field failure. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin for 3.3 V/5 V logic. |
| RoHS-compliant, matte tin plating | Enables lead-free reflow compatibility and eliminates whisker risk in high-humidity or high-vibration deployments. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog front-ends from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to limit voltage excursions to <42 V. Use Value: Prevents latch-up or gate oxide damage in 5 V tolerant transceivers (e.g., TJA1042) during 12 V system surges up to ±300 V. |
Use Scenario: Safeguarding 4–20 mA current-loop inputs and 0–10 V analog channels in programmable logic controllers against field-wiring faults and ESD. IC Role / Device Role / Timing Role: Primary overvoltage clamp on signal line, coordinated with series resistor and filter capacitor for <100 ns response. Use Value: Maintains signal integrity by clamping transients to 41.5 V while drawing <1 µA leakage at 25.6 V operating voltage. |
| Consumer Power Adapter Output | Telecom Line Card Protection |
|
Use Scenario: Secondary-side surge suppression on 5 V/12 V DC outputs of wall adapters exposed to mains-borne noise and lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response shunt protector placed after DC-DC converter output capacitor to absorb residual energy. Use Value: Limits output voltage to 41.5 V during 10/1000 µs surges, preventing overvoltage shutdown or damage to connected USB peripherals. |
Use Scenario: Protecting Ethernet PHYs and DSL line drivers from induced surges on twisted-pair telecom lines per GR-1089-CORE. IC Role / Device Role / Timing Role: Bi-directional TVS on differential pair (e.g., TX+/TX−), mounted adjacent to RJ-45 jack. Use Value: Symmetric clamping ensures equal protection on both conductors, preserving common-mode rejection and signal fidelity. |
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 VC (42.1 V), SMC package (surface-mount), 600 W PPPM. | Requires PCB redesign for SMD footprint; better suited for space-constrained consumer boards than axial through-hole layouts. | Select SMBJ26CA only if board real estate is constrained and reflow assembly is used; BZW04P26HE3/54 remains optimal for legacy through-hole or high-power axial designs. |
| P6KE27CA | Higher VWM (27 V), same VC (41.5 V), DO-15 package, 600 W PPPM, no AEC-Q101 qualification. | Lacks automotive qualification; suitable for industrial/commercial use but not for safety-critical automotive subsystems. | Choose P6KE27CA for cost-sensitive non-automotive applications where AEC-Q101 is not mandated; BZW04P26HE3/54 is mandatory for Tier-1 automotive supply chains. |
Compared with SMBJ26CA and P6KE27CA, BZW04P26HE3/54 uniquely combines AEC-Q101 qualification, DO-204AL axial form factor, and precise 25.6 V VWM tolerance-making it the only drop-in solution for automotive replacement programs requiring legacy through-hole compatibility and certified reliability.
Availability
BZW04P26HE3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial analog input conditioning, and telecom line card surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BZW04P26HE3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The BZW04P series belongs to Vishay's TransZorb® TVS platform, engineered specifically for robust, repeatable clamping in harsh electromagnetic environments-including automotive powertrain, battery management, and industrial motor control systems.
FAQ
What is the clamping voltage of BZW04P26HE3/54 under a 10/1000 µs surge?
The BZW04P26HE3/54 clamps to a maximum of 41.5 V when subjected to its rated 9.6 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is guaranteed across temperature and lot variations per Vishay Document 88316, ensuring predictable protection for downstream 5 V or 3.3 V circuitry.
Is BZW04P26HE3/54 suitable for automotive applications?
Yes, BZW04P26HE3/54 is AEC-Q101 qualified (confirmed by HE3 suffix) and tested for high-temperature operation up to 175 °C. It is widely deployed in automotive body control modules, sensor interfaces, and infotainment power supplies where validated reliability and surge immunity are mandatory.
How does the bi-directional design of BZW04P26HE3/54 affect PCB layout?
The bi-directional symmetry of BZW04P26HE3/54 eliminates polarity constraints: either lead may connect to line or ground without functional impact. This simplifies layout, reduces assembly errors, and allows direct placement across differential pairs or ungrounded signal paths without orientation verification.
What is the maximum reverse leakage current for BZW04P26HE3/54 at its stand-off voltage?
At its 25.6 V stand-off voltage (VWM), BZW04P26HE3/54 exhibits a maximum reverse leakage current of 1 µA at 25 °C, per Vishay's Electrical Characteristics table. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in always-on systems.
Does BZW04P26HE3/54 require derating at elevated ambient temperatures?
Yes, BZW04P26HE3/54 must be derated linearly above 25 °C ambient per Figure 2 in Vishay Document 88316. At 85 °C ambient, its peak pulse power capability drops to ~70% of the rated 400 W, requiring careful thermal design and surge duty-cycle management in enclosed enclosures or under-hood locations.
BZW04P26HE3/54 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04P26HE3/54 FAQ
1.How can I place an order for BZW04P26HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P26HE3/54 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 BZW04P26HE3/54 reliable?
The price and inventory of BZW04P26HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P26HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P26HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P26HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P26HE3/54?
BZW04P26HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P26HE3/54 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 BZW04P26HE3/54?
For technical support, including BZW04P26HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P26HE3/54 requirements.
6.How does Aetrix verify that BZW04P26HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P26HE3/54 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 BZW04P26HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P26HE3/54?
All BZW04P26HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P26HE3/54, 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 BZW04P26HE3/54 part is unused and in its original packaging.
Return procedure for BZW04P26HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P26HE3/54 Tags
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