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Vishay General Semiconductor - Diodes Division BZW04-26HE3/54
- Part No.:
- BZW04-26HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-26HE3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,382
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Product details
Overview
BZW04-26HE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 25.6 V standoff voltage (VWM), 28.5–31.5 V breakdown voltage (VBR) at 1 mA, 41.5 V clamping voltage (VC) at 9.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the BZW04-26HE3/54 datasheet, BZW04-26HE3/54 pinout, BZW04-26HE3/54 application, or BZW04-26HE3/54 equivalent, this AEC-Q101 qualified TVS offers verified bidirectional surge suppression, low leakage (<1 μA at VWM), and stable temperature coefficient (0.097 %/°C), critical for ESD and load-dump hardened designs.
Technical Context
This device operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry while maintaining VC ≤ 41.5 V. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), enabling protection of high-speed analog and digital signal paths.
The bidirectional configuration supports AC-coupled or floating circuits without polarity concerns; its DO-41 package provides mechanical robustness and thermal dissipation sufficient for 1.5 W steady-state power handling at 75 °C lead temperature, with full operation from –55 °C to +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse operating voltage before conduction begins; defines safe signal swing margin. |
| VBR (min/max) | 28.5 V / 31.5 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering across process and temperature. |
| VC @ IPPM | 41.5 V at 9.6 A - Clamped voltage during 10/1000 μs surge; determines maximum stress on protected IC. |
| PPPM | 400 W - Peak pulse power handling capability; validates survivability against ISO 7637-2 Pulse 1/2/5a transients. |
| ID @ VWM | <1 μA - Reverse leakage current; guarantees minimal signal path loading in high-impedance sensor interfaces. |
| TJ max. | +175 °C - Maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments. |
| Temp. coeff. of VBR | 0.097 %/°C - Predictable VBR drift with temperature; supports accurate clamping margin calculation over full operating range. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; compliant with J-STD-002 and JESD22-B102 solderability standards. No polarity marking - bidirectional operation confirmed per datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically; connects in parallel across protected line and ground (or between differential lines). |
| Leads (2) | Thermal and electrical interface | Provide mechanical mounting, heat conduction to PCB copper, and low-inductance surge current return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor modules. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| 400 W 10/1000 μs pulse rating | Meets ISO 7637-2 Level III/IV and IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, relay bounce), improving protection fidelity. |
| UL 94 V-0 molding compound | Provides flame-retardant housing essential for safety-critical and enclosed system designs. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector or IC input pins to clamp surges before they reach signal conditioning circuitry. Use Value: Maintains signal integrity by limiting transient voltage to ≤41.5 V during 9.6 A pulses, preventing latch-up or permanent damage to 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against field-induced surges from solenoid valves, motor drives, and long cable runs. IC Role / Device Role / Timing Role: Bidirectional clamping element across channel-to-ground or differential channel pairs to absorb repetitive 400 W transients without degradation. Use Value: Enables >100,000 surge cycles per IEC 61000-4-5 due to low incremental resistance and stable VBR, reducing maintenance and field failure rates. |
| Telecom Line Interface Protection | Consumer Appliance Control Board |
Use Scenario: Shielding RS-485/RS-232 transceivers and Ethernet PHYs in base stations and network edge devices from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end TVS in multi-stage protection architecture, absorbing bulk energy before secondary MOV or GDT stages. Use Value: Fast <1 ns response time prevents voltage overshoot beyond IC absolute maximum ratings, preserving data link reliability during surge events. |
Use Scenario: Securing microcontroller GPIOs and display driver inputs in washing machines, HVAC controls, and smart home hubs exposed to user-accessible connectors and noisy power supplies. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) bidirectional protector enabling direct placement on high-impedance MCU pins without signal attenuation. Use Value: RoHS-compliant HE3 suffix meets JESD201 Class 2 whisker resistance, ensuring long-term solder joint reliability in consumer-grade reflow profiles. |
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 package; 26 V VWM, 400 W rating; higher capacitance (~150 pF vs. ~50 pF for BZW04-26HE3/54) | Less suitable for high-frequency signal lines due to higher junction capacitance; better for power rail protection. | Select SMBJ26CA only when board space allows larger SMC footprint and signal bandwidth is below 10 MHz. |
| P6KE27CA | DO-15 package; 27 V VWM, 600 W rating; slower response (>5 ns) and higher VC (45.7 V) | Higher clamping voltage increases risk to 3.3 V logic; not AEC-Q101 qualified. | Choose P6KE27CA only for cost-sensitive non-automotive applications where 45.7 V clamping is acceptable and qualification is not required. |
Compared with SMBJ26CA and P6KE27CA, BZW04-26HE3/54 delivers lower clamping voltage (41.5 V), tighter VBR tolerance (±5.3%), AEC-Q101 qualification, and smaller DO-41 footprint - making it optimal for space-constrained, automotive-grade, and high-speed signal protection.
Availability
BZW04-26HE3/54 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 consistent DO-41 form factor.
Supply support for BZW04-26HE3/54 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 demanding industrial and automotive applications.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for bidirectional transient suppression in harsh environments - emphasizing AEC-Q101 qualification, stable parametric performance, and robust packaging for under-hood and factory-floor deployment.
FAQ
What is the polarity configuration of BZW04-26HE3/54?
BZW04-26HE3/54 is a bidirectional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Its electrical characteristics apply identically in both directions, enabling use in AC-coupled circuits, differential signal lines, or floating grounds without orientation constraints - unlike unidirectional variants such as BZW04-26E3/54.
Is BZW04-26HE3/54 qualified for automotive applications?
Yes, BZW04-26HE3/54 carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay documentation. This certification validates its reliability for automotive use cases including engine control units, body control modules, and ADAS sensor interfaces subjected to extended temperature cycling, vibration, and high-humidity environments.
What is the clamping voltage of BZW04-26HE3/54 under surge conditions?
The maximum clamping voltage (VC) of BZW04-26HE3/54 is 41.5 V at 9.6 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
How does the HE3 suffix differ from the E3 suffix in BZW04-26HE3/54?
The HE3 suffix in BZW04-26HE3/54 indicates AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas E3 denotes commercial-grade RoHS compliance only. Both meet UL 94 V-0 and J-STD-002 solderability, but HE3 adds automotive-grade reliability testing including accelerated life, thermal shock, and humidity bias validation.
Can BZW04-26HE3/54 be used in place of a unidirectional TVS like BZW04-26E3/54?
No - BZW04-26HE3/54 is bidirectional and lacks polarity marking, while BZW04-26E3/54 is unidirectional with cathode band identification. Substitution requires verifying circuit topology: bidirectional use is mandatory for AC signals or floating references; unidirectional parts are required where DC bias or rectification is present.
BZW04-26HE3/54 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:
- 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)
BZW04-26HE3/54 FAQ
1.How can I place an order for BZW04-26HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-26HE3/54 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 BZW04-26HE3/54 reliable?
The price and inventory of BZW04-26HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-26HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-26HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-26HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-26HE3/54?
BZW04-26HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-26HE3/54 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 BZW04-26HE3/54?
For technical support, including BZW04-26HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-26HE3/54 requirements.
6.How does Aetrix verify that BZW04-26HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-26HE3/54 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 BZW04-26HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-26HE3/54?
All BZW04-26HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-26HE3/54, 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 BZW04-26HE3/54 part is unused and in its original packaging.
Return procedure for BZW04-26HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-26HE3/54 Tags
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