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Vishay General Semiconductor - Diodes Division BZW04P239-E3/54
- Part No.:
- BZW04P239-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P239-E3/54.pdf
- Description:
- TVS DIODE 239VWM 384VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,165
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Product details
Overview
BZW04P239-E3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 239 V standoff voltage (VWM), 384 A peak pulse current (IPPM) under 10/1000 μs waveform, 384 V clamping voltage (VC), 400 W peak pulse power rating, and AEC-Q101 qualification - making it suitable for automotive power rail and industrial sensor interface protection.
For engineers reviewing the BZW04P239-E3/54 datasheet, BZW04P239-E3/54 pinout, BZW04P239-E3/54 application, or BZW04P239-E3/54 equivalent, this device delivers verified bi-directional surge suppression with low leakage (<1.0 μA at VWM), fast response time, and DO-41 package compatibility for legacy board layouts requiring high-energy transient immunity.
Technical Context
The BZW04P239-E3/54 operates as a bi-directional avalanche diode, leveraging glass-passivated junction technology to achieve symmetrical clamping in both polarities. Its breakdown voltage range (266–308 V at 1 mA test current) ensures precise voltage thresholding, while its 0.110 %/°C temperature coefficient of VBR maintains stable protection across automotive-grade temperature ranges (–55 °C to +175 °C).
It sustains repetitive 10/1000 μs transients at 0.01 % duty cycle without degradation and exhibits low incremental surge resistance for minimal voltage overshoot during high-current surges. The device is rated for 400 W peak pulse power and derates linearly above 25 °C ambient per Vishay's published thermal curve (Fig. 2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 239 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V/48 V industrial or 12 V/24 V automotive systems. |
| VC @ IPPM | 384 V - Clamped voltage at 384 A peak pulse current (10/1000 μs); limits downstream IC stress during lightning or inductive switch-off events. |
| IPPM | 384 A - Peak surge current capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) compliance when properly routed and decoupled. |
| PPPM | 400 W - Peak pulse power handling; enables single-device protection against high-energy transients without cascaded TVS stages. |
| ID @ VWM | <1.0 μA - Reverse leakage at 239 V; minimizes standby power loss and avoids false triggering in high-impedance sensing circuits. |
| TJ max. | +175 °C - Maximum junction temperature; supports operation in engine bay, power supply, and motor drive environments. |
| AEC-Q101 | Qualified - Validated for automotive electronic modules per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
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 solderability standards. E3 suffix indicates RoHS-compliant commercial grade with JESD201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bi-directional) | Non-polarized terminals | No polarity marking; symmetric conduction in both directions - simplifies PCB layout and eliminates orientation errors during assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| 400 W peak pulse power (10/1000 μs) | Supports single-device protection against high-energy transients without external heat sinking or parallel devices. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules where field failure risk must be minimized. |
| Low incremental surge resistance | Reduces clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 5a), improving system-level immunity. |
| Bi-directional symmetry | Eliminates need for polarity-aware placement or dual unidirectional devices - reduces BOM count and layout complexity. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V CAN/LIN bus power inputs and microcontroller supply rails from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC/DC converters and LDOs to limit input voltage excursion. Use Value: Withstands 384 A surge current and clamps to 384 V, preventing damage to downstream 36 V-rated regulators and MCU I/O pins. |
Use Scenario: Safeguarding analog outputs (4–20 mA) and digital sensor interfaces (e.g., pressure, temperature) in factory automation PLCs. IC Role / Device Role / Timing Role: Bi-directional shunt protector on sensor supply and return lines exposed to relay coil switching and EMI coupling. Use Value: Sub-μA leakage at 239 V ensures no impact on precision current-loop accuracy; fast response prevents latch-up in op-amp front-ends. |
| Telecom AC/DC Front-End Protection | Motor Drive Control Board Protection |
Use Scenario: Secondary-side transient suppression on telecom power supplies after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Final-stage TVS on +48 V distribution rails feeding PoE controllers and Ethernet PHYs. Use Value: 239 V VWM provides 20 % margin above nominal 48 V, while 384 V VC stays below 400 V MOSFET drain ratings. |
Use Scenario: Gate driver supply rail protection in BLDC inverters subjected to shoot-through and back-EMF spikes. IC Role / Device Role / Timing Role: Clamp on isolated 15 V gate supply to prevent driver IC destruction during high-dV/dt switching events. Use Value: Bi-directional operation handles both positive and negative transients induced by parasitic inductance in gate loops. |
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) package; 230 V VWM, 372 V VC @ 362 A; lower IPPM and smaller footprint. | Preferred for space-constrained SMT designs; not axial-leaded or DO-41 compatible. | Select SMBJ230CA only if board redesign allows surface-mount replacement and thermal management supports SMB package derating. |
| 1.5KE240CA | DO-201AD package; 240 V VWM, 392 V VC @ 382 A; higher power (1500 W) but larger size and slower response. | Suitable for high-energy utility meter or grid-tie inverter protection where size is secondary to energy absorption. | Choose 1.5KE240CA when surge energy exceeds 400 W capability and axial-leaded form factor is retained, but verify lead thermal relief for high-repetition surges. |
Compared with SMBJ230CA and 1.5KE240CA, the BZW04P239-E3/54 offers optimal balance of DO-41 legacy compatibility, AEC-Q101 qualification, and precise 239 V standoff - making it the preferred choice for automotive and industrial retrofits where board real estate and qualification traceability are critical.
Availability
BZW04P239-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power supply protection requiring stable component supply and long-term lifecycle support.
Supply support for BZW04P239-E3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness and qualification compliance are mandatory.
FAQ
What is the clamping voltage of BZW04P239-E3/54 at its rated peak pulse current?
The BZW04P239-E3/54 has a maximum clamping voltage (VC) of 384 V at its rated peak pulse current of 384 A under the standard 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and ensures downstream components see limited overvoltage during surge events. The clamping performance is guaranteed across the full operating temperature range (–55 °C to +175 °C).
Is BZW04P239-E3/54 suitable for automotive applications?
Yes, BZW04P239-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction - including glass-passivated junction, DO-41 mechanical robustness, and 175 °C maximum junction temperature - meets stress test requirements for powertrain, body electronics, and ADAS modules. The E3/54 packaging also supports automated assembly in Tier 1 production lines.
Does BZW04P239-E3/54 have polarity markings?
No, BZW04P239-E3/54 is a bi-directional TVS diode and carries no polarity marking. Its symmetrical avalanche structure allows installation in either orientation on the PCB. This eliminates orientation errors during manual or automated assembly and simplifies design reuse across AC-coupled or floating signal paths.
What is the maximum reverse leakage current for BZW04P239-E3/54 at its standoff voltage?
At its 239 V standoff voltage (VWM), the BZW04P239-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and minimizes quiescent power loss in battery-backed systems - critical for always-on automotive modules.
Can BZW04P239-E3/54 replace older BZW04-239 variants?
Yes, BZW04P239-E3/54 is the RoHS-compliant, commercial-grade successor to BZW04-239, sharing identical electrical specifications (VWM = 239 V, VC = 384 V, IPPM = 384 A) and DO-41 mechanical outline. The "P" suffix denotes enhanced process control and tighter parameter distribution, while E3/54 indicates tape-and-reel packaging per JESD201 Class 1A whisker testing.
BZW04P239-E3/54 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):
- 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-E3/54 FAQ
1.How can I place an order for BZW04P239-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P239-E3/54 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 BZW04P239-E3/54 reliable?
The price and inventory of BZW04P239-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P239-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P239-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P239-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P239-E3/54?
BZW04P239-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P239-E3/54 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 BZW04P239-E3/54?
For technical support, including BZW04P239-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P239-E3/54 requirements.
6.How does Aetrix verify that BZW04P239-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P239-E3/54 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 BZW04P239-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P239-E3/54?
All BZW04P239-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P239-E3/54, 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 BZW04P239-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P239-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P239-E3/54 Tags
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