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Vishay General Semiconductor - Diodes Division BZW04-26BHE3/54
- Part No.:
- BZW04-26BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-26BHE3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,935
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Product details
Overview
BZW04-26BHE3/54 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, 41.5 V maximum clamping voltage (VC) at 9.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, sensor interfaces, and industrial control inputs against ESD and inductive switching surges.
For engineers reviewing the BZW04-26BHE3/54 datasheet, BZW04-26BHE3/54 pinout, BZW04-26BHE3/54 application, or BZW04-26BHE3/54 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified transient suppressor optimized for bidirectional surge protection in automotive and industrial environments where polarity-agnostic clamping and stable thermal performance up to 175 °C are required.
Technical Context
This bidirectional TVS operates symmetrically in both forward and reverse directions, with identical VBR, VC, and IPPM specifications across polarity. Its glass-passivated junction ensures low leakage (<1.0 μA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
The device is rated for 400 W peak pulse power under 10/1000 μs waveform at TA = 25 °C, derated linearly above 25 °C per Fig. 2, and supports continuous power dissipation of 1.5 W on an infinite heatsink at TL = 75 °C. Junction temperature range spans −55 °C to +175 °C, with temperature coefficient of VBR at +0.097 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 24 V nominal systems. |
| VBR (min/max) | 28.5 V / 31.5 V at 1 mA - Breakdown threshold range; ensures reliable turn-on during transients while avoiding false triggering. |
| VC @ IPPM | 41.5 V at 9.6 A - Clamped voltage during worst-case 10/1000 μs surge; limits downstream IC stress below 42 V absolute maximum. |
| PPPM | 400 W - Peak pulse power handling capability; sustains repetitive 0.01% duty cycle surges without degradation. |
| IPPM | 9.6 A - Maximum non-repetitive peak pulse current; determines minimum series impedance needed for system-level surge compliance. |
| TJ max. | +175 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, and ESD testing per AEC standard. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional configuration; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical electrical behavior in both directions; either lead may connect to protected line or ground - no orientation dependency. |
| Lead 1 / Lead 2 | Device terminals | Leads serve as mechanical attachment and thermal path; 0.028–0.034 inch diameter supports manual or automated through-hole assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables <1.0 μA reverse leakage at VWM, minimizing standby power loss in battery-powered sensor nodes. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV surge) protection on 24 V supply rails without external current limiting. |
| AEC-Q101 qualification | Validates robustness for automotive body electronics, including door modules, lighting controllers, and HVAC actuators. |
| UL 94 V-0 molding compound | Ensures flame resistance in enclosed industrial control cabinets and transportation equipment enclosures. |
| JESD201 class 2 whisker resistance (HE3 suffix) | Prevents tin whisker growth under thermal cycling, critical for long-life deployments in telecom infrastructure. |
Applications
| Automotive Body Control Module | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and relay driver outputs from load dump and inductive kickback in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground to limit transient excursions to ≤42 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V microcontrollers and half-bridge drivers exposed to ISO 7637-2 Pulse 1/2a/5a events. |
Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers against field-wiring surges and ground loop transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on optocoupler input side, conducting within <1 ns to hold voltage below opto CTR degradation threshold. Use Value: Maintains signal integrity and extends optocoupler lifetime by limiting peak stress to 41.5 V during 1 kV/μs transients per IEC 61000-4-4. |
| Telecom Power Supply Monitoring | Consumer Appliance Motor Driver Protection |
|
Use Scenario: Shielding voltage supervisor ICs and ADC reference inputs in AC/DC power supplies from conducted noise on auxiliary 12 V bias rails. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) shunt protector placed directly at IC pins to minimize PCB trace inductance impact on clamping speed. Use Value: Avoids false undervoltage lockout or reference drift caused by sub-100 ns spikes, ensuring accurate brown-out detection and regulation stability. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp commutation spikes before they propagate into MCU GPIO or H-bridge gate drivers. Use Value: Eliminates need for snubber RC networks, reducing BOM count and board space while maintaining EN 61000-6-2 Class B immunity. |
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), but SMC package (DO-214AB); 600 W PPPM; higher IPPM (17.3 A); 44.2 V VC. | Surface-mount layout; better thermal dissipation in high-density designs; not through-hole compatible. | Select SMBJ26CA when board space is constrained and reflow assembly is used; verify pad thermal relief for 1.5 W steady-state dissipation. |
| P6KE27CA | Higher VWM (27 V), same DO-41 package; 600 W PPPM; 45.7 V VC; wider VBR tolerance (28.9–33.2 V). | Looser voltage margin for 24 V systems; less precise clamping; legacy industrial stock. | Choose P6KE27CA only if existing BOM uses P6KE series and VC margin allows; avoid where tight clamping (<42 V) is mandatory. |
Compared with BZW04-26BHE3/54, SMBJ26CA offers higher surge capacity in SMT form but requires PCB redesign, while P6KE27CA provides drop-in DO-41 compatibility at the cost of reduced clamping precision and elevated VC - making BZW04-26BHE3/54 optimal for new AEC-Q101-compliant through-hole designs needing tight 41.5 V clamping.
Availability
BZW04-26BHE3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, telecom power monitoring circuits, and consumer appliance motor control requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZW04-26BHE3/54 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, and passive components for automotive, industrial, and computing markets.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust bidirectional transient suppression in harsh environments where AEC-Q101 qualification and stable high-temperature operation are mandatory.
FAQ
What is the polarity configuration of BZW04-26BHE3/54?
BZW04-26BHE3/54 is a bidirectional TVS diode, meaning it functions identically in both forward and reverse directions. There is no cathode marking on the DO-41 package, and either lead may be connected to the protected line or ground - eliminating orientation errors during assembly and simplifying layout for differential or floating signal lines.
Does BZW04-26BHE3/54 meet automotive qualification standards?
Yes, BZW04-26BHE3/54 carries the HE3 suffix, confirming AEC-Q101 qualification. This includes stress testing for high-temperature operating life, temperature cycling, and electrostatic discharge - validating its suitability for automotive body electronics, including door modules, lighting controls, and engine bay sensors where ambient temperatures reach 125 °C.
What is the maximum clamping voltage of BZW04-26BHE3/54 under surge conditions?
The maximum clamping voltage (VC) of BZW04-26BHE3/54 is 41.5 V at 9.6 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and ensures downstream 42 V-tolerant ICs - such as automotive CAN transceivers or industrial analog front-ends - remain within safe operating limits during surge events.
Can BZW04-26BHE3/54 replace unidirectional TVS diodes in existing designs?
No - BZW04-26BHE3/54 is strictly bidirectional and must not substitute for unidirectional TVS diodes like BZW04-26HE3 without circuit review. Unidirectional parts conduct only in reverse bias and rely on forward conduction through external paths; using a bidirectional device may alter clamping behavior and compromise protection in DC-biased lines.
What packaging format is supplied for BZW04-26BHE3/54?
BZW04-26BHE3/54 is supplied in 13-inch diameter paper tape and reel packaging (package code "54"), with 550 units per reel. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification, and the tape meets EIA-481-D standards for automated pick-and-place insertion in high-volume manufacturing.
BZW04-26BHE3/54 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:
- -
- 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)
BZW04-26BHE3/54 FAQ
1.How can I place an order for BZW04-26BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-26BHE3/54 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 BZW04-26BHE3/54 reliable?
The price and inventory of BZW04-26BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-26BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-26BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-26BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-26BHE3/54?
BZW04-26BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-26BHE3/54 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 BZW04-26BHE3/54?
For technical support, including BZW04-26BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-26BHE3/54 requirements.
6.How does Aetrix verify that BZW04-26BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-26BHE3/54 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 BZW04-26BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-26BHE3/54?
All BZW04-26BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-26BHE3/54, 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 BZW04-26BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04-26BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-26BHE3/54 Tags
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