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Vishay General Semiconductor - Diodes Division BZW04P40BHE3/54
- Part No.:
- BZW04P40BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P40BHE3/54.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,811
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Product details
Overview
BZW04P40BHE3/54 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 40.2 V stand-off voltage (VWM), 64.8 V clamping voltage (VC) at 6.2 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), making it suitable for protecting MOSFETs, sensor interfaces, and industrial control inputs against ESD and inductive switching transients.
For engineers reviewing the BZW04P40BHE3/54 datasheet, BZW04P40BHE3/54 pinout, BZW04P40BHE3/54 application, or BZW04P40BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package compatibility, bi-directional symmetry, low leakage (<1 µA at VWM), and temperature coefficient of breakdown voltage (0.101 %/°C).
Technical Context
This device operates as a voltage-clamped shunt protector with symmetrical avalanche breakdown in both polarities, enabling use on AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the 175 °C maximum junction temperature supports operation in under-hood automotive and high-ambient industrial environments.
The 400 W peak pulse rating is defined per 10/1000 µs waveform with 0.01 % duty cycle, and thermal derating follows a linear curve above 25 °C ambient. The 1.5 W steady-state power dissipation (PD) and 0.67 µA max reverse leakage at VWM reflect its suitability for low-power, always-on protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40.2 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 36 V nominal systems. |
| VC @ IPPM | 64.8 V - Clamped voltage at 6.2 A peak pulse; limits downstream IC stress during 400 W transient events. |
| IPPM | 6.2 A - Peak surge current capability with 10/1000 µs waveform; validates protection level against IEC 61000-4-5 Level 3 surges. |
| Leakage @ VWM | <1 µA - Ultra-low reverse leakage preserves signal integrity and battery life in always-connected sensor nodes. |
| TJ max | 175 °C - Enables placement near heat sources (e.g., power converters) without derating loss in surge capability. |
| AEC-Q101 | Qualified - Meets automotive-grade reliability requirements for vibration, temperature cycling, and HTRB testing. |
| Package | DO-204AL (DO-41) - Industry-standard axial leaded package compatible with automated through-hole assembly and manual prototyping. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, molded epoxy body with matte tin-plated leads; no polarity marking for bi-directional operation; compliant with J-STD-002 solderability and JESD22-B102 wetting balance standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional avalanche junction terminals | No functional distinction between leads; either terminal serves as input or return path depending on transient polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection on AC, differential, or floating lines without polarity constraints or external circuitry. |
| 400 W peak pulse power | Withstands repeated 10/1000 µs surges up to 6.2 A-meets IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime, even under humidity and thermal cycling stress. |
| AEC-Q101 qualification | Validates reliability for automotive body electronics, infotainment power rails, and ADAS sensor interfaces. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU RoHS Directive 2011/65/EU for lead-free manufacturing. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode placed across signal line and ground to clamp transients before they reach sensitive input pins. Use Value: Prevents latch-up or permanent damage to 5 V or 12 V interface ICs during ISO 7637-2 pulse 1/2a/5a events. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against inductive kickback from solenoid/relay coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input terminals, upstream of optocoupler isolation barrier. Use Value: Maintains system uptime by absorbing >400 W surge energy without degradation, eliminating need for redundant protection stages. |
| Telecom Line Interface | Consumer Appliance Power Supply |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHY magnetics from lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Secondary-level TVS on differential data lines, coordinated with GDT or MOV primary protection. Use Value: Limits clamping voltage to ≤65 V, preserving signal integrity and preventing common-mode failure of isolated communication ICs. |
Use Scenario: Protecting microcontroller reset lines and AC-DC converter feedback networks in smart home appliances subject to mains-borne transients. IC Role / Device Role / Timing Role: Low-leakage, always-on shunt suppressor on low-current control nodes where standby power budget is critical. Use Value: Delivers <1 µA leakage at 40.2 V, avoiding false resets or bias drift in 3.3 V/5 V logic monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40CA | Same VWM (40 V), higher IPPM (12.3 A), SMC package (surface-mount), lower VC (64.5 V) | Requires PCB rework for SMD layout; better suited for space-constrained, high-volume production vs. through-hole prototyping. | Select SMBJ40CA when board real estate is limited and automated SMT assembly is available. |
| P6KE40CA | Same DO-15 package, lower PPPM (600 W), higher VC (69.4 V), non-AEC-Q101 rated | Lacks automotive qualification; acceptable for commercial-grade industrial controls but not for automotive Tier-1 designs. | Choose P6KE40CA only for cost-sensitive, non-automotive applications where AEC-Q101 is not mandated. |
Compared with SMBJ40CA and P6KE40CA, BZW04P40BHE3/54 uniquely combines AEC-Q101 qualification, DO-41 through-hole compatibility, and 400 W surge handling in a single-source-qualified part-making it optimal for automotive and industrial designs requiring traceable, qualified components without layout change.
Availability
BZW04P40BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line protection, and consumer appliance power supply monitoring requiring stable component supply and long-term lifecycle support.
Supply support for BZW04P40BHE3/54 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, precision, and automotive-grade qualification.
The BZW04P series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and stable clamping performance are mandatory.
FAQ
What is the clamping voltage of BZW04P40BHE3/54 at its rated peak pulse current?
The BZW04P40BHE3/54 has a maximum clamping voltage (VC) of 64.8 V at its rated peak pulse current (IPPM) of 6.2 A, measured using the standard 10/1000 µs waveform. This value ensures downstream circuitry remains within safe voltage limits during surge events, and is confirmed in Vishay's Document Number 88316, page 2.
Is BZW04P40BHE3/54 suitable for automotive applications?
Yes, BZW04P40BHE3/54 is AEC-Q101 qualified (as indicated by the "HE3" suffix) and tested for automotive reliability including temperature cycling, highly accelerated life testing, and mechanical shock. Its 175 °C TJmax and stable leakage make it appropriate for engine bay and chassis-mounted electronic control units.
Does BZW04P40BHE3/54 have polarity markings on the package?
No, BZW04P40BHE3/54 is a bi-directional TVS diode and carries no polarity marking on its DO-204AL (DO-41) package. Both leads are functionally identical, allowing installation in either orientation-critical for protecting AC-coupled or floating signal paths without risk of incorrect placement.
What is the maximum steady-state power dissipation for BZW04P40BHE3/54?
The BZW04P40BHE3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. Derating is required above 25 °C ambient, per Figure 5 in the Vishay datasheet (Document Number 88316), ensuring safe thermal operation in enclosed enclosures.
How does the temperature coefficient affect BZW04P40BHE3/54's breakdown voltage?
The BZW04P40BHE3/54 has a maximum temperature coefficient of breakdown voltage (VBR) of +0.101 %/°C. This means VBR increases by approximately 0.041 V per °C rise above 25 °C, ensuring predictable clamping margin expansion in high-temperature environments without premature conduction.
BZW04P40BHE3/54 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
BZW04P40BHE3/54 FAQ
1.How can I place an order for BZW04P40BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P40BHE3/54 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 BZW04P40BHE3/54 reliable?
The price and inventory of BZW04P40BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P40BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P40BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P40BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P40BHE3/54?
BZW04P40BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P40BHE3/54 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 BZW04P40BHE3/54?
For technical support, including BZW04P40BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P40BHE3/54 requirements.
6.How does Aetrix verify that BZW04P40BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P40BHE3/54 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 BZW04P40BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P40BHE3/54?
All BZW04P40BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P40BHE3/54, 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 BZW04P40BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P40BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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