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Vishay General Semiconductor - Diodes Division BZW04P239-E3/73
- Part No.:
- BZW04P239-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P239-E3/73.pdf
- Description:
- TVS DIODE 239VWM 384VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,204
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Product details
Overview
BZW04P239-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 239 V standoff voltage (VWM), 384 A peak pulse current (IPPM) under 10/1000 μs waveform, and clamps to 384 V maximum at rated surge, targeting industrial sensor interfaces and automotive control modules.
For engineers reviewing the BZW04P239-E3/73 datasheet, BZW04P239-E3/73 pinout, BZW04P239-E3/73 application, or BZW04P239-E3/73 equivalent, key selection criteria include its DO-204AL (DO-41) package, AEC-Q101 qualification, 400 W peak pulse power rating, and bi-directional clamping behavior for AC-coupled or floating-line protection schemes.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown mechanism with glass-passivated junction for stable, repeatable response. Its bi-directional symmetry ensures identical clamping performance in both polarities, eliminating polarity dependency in differential or ungrounded signal paths.
Designed for repetitive surge events up to 0.01% duty cycle, it maintains thermal stability via low incremental surge resistance and derates predictably above 25 °C ambient per Fig. 2. The 175 °C max junction temperature and RoHS-compliant matte tin plating support high-reliability deployment in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 239 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 24 V–48 V DC systems with high-voltage transients. |
| IPPM (10/1000 μs) | 384 A - Peak surge current it safely shunts without failure; enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 24 V lines. |
| VC (at IPPM) | 384 V - Maximum clamped voltage seen by downstream circuitry during full-rated surge; determines required voltage headroom for protected ICs. |
| PPPM | 400 W - Peak pulse power dissipation capability; confirms suitability for standard 10/1000 μs lightning/surge waveforms per ANSI/IEEE C62.35. |
| TJ max. | 175 °C - Maximum junction temperature; supports operation in under-hood automotive or enclosed industrial enclosures without forced cooling. |
| Package | DO-204AL (DO-41) - Axial-leaded through-hole package with 25.4 mm minimum lead length; compatible with legacy PCB layouts and wave-solder processes. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suitable for body electronics and powertrain sub-systems. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, molded epoxy case meeting UL 94 V-0; no polarity marking for bi-directional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (either end) | Bi-directional avalanche junction terminal | Identical electrical behavior in both directions; either lead may connect to line or return - no orientation requirement in PCB layout. |
| Lead 1 / Lead 2 | Matte tin-plated copper alloy leads | Solderable per J-STD-002/JESD22-B102; withstands 275 °C dip soldering for 10 s; meets JESD201 Class 1A whisker resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable breakdown voltage over lifetime and immunity to moisture-induced parameter drift in humid environments. |
| 400 W peak pulse power (10/1000 μs) | Supports repeated surge events per IEC 61000-4-5 without degradation; eliminates need for external series impedance in many 24 V industrial designs. |
| Bi-directional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or floating grounds without polarity concerns. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, ADAS sensors, and infotainment power rails. |
| RoHS-compliant & UL 94 V-0 molding | Meets global environmental compliance and fire safety requirements for consumer, industrial, and automotive end equipment. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) from inductive switching spikes in factory automation PLCs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across signal and return lines to limit transient excursions below 400 V. Use Value: Prevents latch-up or damage to precision DACs and op-amps by clamping surges to ≤384 V while maintaining <1 µA leakage at 239 V. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins against load dump and alternator ripple in door module ECUs. IC Role / Device Role / Timing Role: Bi-directional transient suppressor mounted at connector entry point to absorb coupled energy before reaching silicon. Use Value: Withstands 384 A surge peaks and operates reliably from −55 °C to +175 °C, fulfilling AEC-Q101 requirements for under-dash placement. |
| Telecom Power Feeding Line | Renewable Energy Inverter DC Link |
Use Scenario: Guarding PoE-powered remote units (e.g., IP cameras) against induced surges on 48 V DC feed lines from nearby lightning strikes. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing common-mode transients between power pair and chassis ground. Use Value: 239 V VWM provides 2× margin over nominal 48 V supply, while 384 V VC ensures protected PHY ICs remain within absolute maximum ratings. |
Use Scenario: Suppressing switching transients on DC link capacitors in solar string inverters exposed to grid fault coupling. IC Role / Device Role / Timing Role: Parallel-connected TVS limiting voltage overshoot during IGBT turn-off in high-power converter stages. Use Value: 400 W peak power rating and low clamping ratio (VC/VWM = 1.61) minimize stress on 600 V-rated electrolytic capacitors and gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ230CA | DO-214AA (SMB) surface-mount package; same 230 V VWM and 389 A IPPM but lower 600 W PPPM rating. | Requires PCB re-layout for SMT assembly; better suited for space-constrained consumer electronics than industrial through-hole designs. | Select when board space is limited and automated assembly is preferred; verify thermal relief pad design for 1.5 W steady-state dissipation. |
| P6SMB240CA | Same DO-214AA package; 240 V VWM, 370 A IPPM, 600 W PPPM; higher leakage (5 µA vs. 1 µA at VWM) and no AEC-Q101 qualification. | Lacks automotive qualification; acceptable for commercial telecom or computing power rails where AEC compliance is not mandated. | Choose for cost-sensitive non-automotive applications needing higher pulse power margin; avoid in safety-critical vehicle subsystems. |
Compared with SMBJ230CA and P6SMB240CA, BZW04P239-E3/73 offers through-hole mechanical robustness, AEC-Q101 validation, and tighter leakage control - making it preferable for high-vibration industrial controls and automotive body electronics where long-term reliability outweighs footprint savings.
Availability
BZW04P239-E3/73 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and telecom power feeding lines requiring stable component supply and long-lifecycle support.
Supply support for BZW04P239-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in harsh environments where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the standoff voltage (VWM) of the BZW04P239-E3/73?
The BZW04P239-E3/73 has a standoff voltage (VWM) of 239 V, meaning it remains non-conductive up to this DC or RMS voltage level under normal operation. This value is confirmed in the Vishay datasheet Document Number 88316, Table on page 3, and defines the maximum continuous operating voltage before avalanche conduction begins. The BZW04P239-E3/73 maintains <1 µA reverse leakage at this voltage, ensuring minimal power loss in standby conditions.
Is the BZW04P239-E3/73 bi-directional or uni-directional?
The BZW04P239-E3/73 is a bi-directional TVS diode, as indicated by the "B" suffix in its full family designation BZW04P239B and confirmed in the "BI-DIRECTIONAL" column of the Electrical Characteristics table (page 3). It exhibits symmetrical clamping behavior in both polarities, with identical VBR min/max, IPPM, and VC values regardless of voltage polarity - enabling use on AC signals or ungrounded lines without orientation constraints.
What package type does the BZW04P239-E3/73 use?
The BZW04P239-E3/73 uses the DO-204AL (also known as DO-41) axial-leaded package, specified in the Mechanical Data section (page 1) and illustrated in the Package Outline Dimensions (page 5). It features a molded epoxy case rated UL 94 V-0, 25.4 mm minimum lead length, and matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
Does the BZW04P239-E3/73 meet AEC-Q101 qualification?
Yes, the BZW04P239-E3/73 is AEC-Q101 qualified, as explicitly stated in the Features list (page 1) and confirmed in Note (1) on page 3 of the Vishay datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD, validating its suitability for automotive electronic systems such as body control modules and sensor nodes.
What is the maximum clamping voltage (VC) of the BZW04P239-E3/73 at its rated surge current?
The BZW04P239-E3/73 has a maximum clamping voltage (VC) of 384 V at its rated peak pulse current (IPPM) of 384 A, measured under the standard 10/1000 μs waveform. This value is listed in the Electrical Characteristics table (page 3) and represents the highest voltage that will appear across the device during a full-rated transient event - a critical parameter for ensuring downstream ICs remain within their absolute maximum voltage ratings.
BZW04P239-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):
- 239V
- Voltage - Breakdown (Min):
- 266V
- Voltage - Clamping (Max) @ Ipp:
- 384V
- Current - Peak Pulse (10/1000µs):
- 1.1A
- 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)
BZW04P239-E3/73 FAQ
1.How can I place an order for BZW04P239-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P239-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 BZW04P239-E3/73 reliable?
The price and inventory of BZW04P239-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 BZW04P239-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P239-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P239-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P239-E3/73?
BZW04P239-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P239-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 BZW04P239-E3/73?
For technical support, including BZW04P239-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P239-E3/73 requirements.
6.How does Aetrix verify that BZW04P239-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P239-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 BZW04P239-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P239-E3/73?
All BZW04P239-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P239-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 BZW04P239-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P239-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P239-E3/73 Tags
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