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Vishay General Semiconductor - Diodes Division BZW04-239-E3/54
- Part No.:
- BZW04-239-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-239-E3/54.pdf
- Description:
- TVS DIODE 239VWM 384VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,601
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Product details
Overview
BZW04-239-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of signal and power lines. It features a 239 V standoff voltage (VWM), 266–294 V breakdown voltage (VBR) at 1 mA, 384 A peak pulse current (IPPM), and clamps transients to ≤384 V at rated surge, suitable for industrial sensor interface and automotive ECU power rail protection.
For engineers reviewing the BZW04-239-E3/54 datasheet, BZW04-239-E3/54 pinout, BZW04-239-E3/54 application, or BZW04-239-E3/54 equivalent, this device delivers AEC-Q101-qualified transient suppression with 400 W peak pulse power (10/1000 μs), low leakage (<1.0 μA at VWM), and stable temperature coefficient (0.110 %/°C), critical for high-reliability 24 V/48 V system designs.
Technical Context
The BZW04-239-E3/54 operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above its breakdown threshold in both polarities without polarity marking. Its glass-passivated junction ensures stable VBR and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients.
Rated for 400 W peak pulse power per 10/1000 μs waveform and derated linearly above 25 °C, it sustains 1.5 W steady-state power dissipation on infinite heatsink at 75 °C. Junction temperature range spans −55 °C to +175 °C, supporting under-hood and industrial ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 239 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 240 VAC-derived rails. |
| VBR min/max | 266 V / 294 V at 1 mA - Tight breakdown window ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | ≤384 V - Clamping voltage during 384 A surge; limits downstream IC stress to <384 V for IEC 61000-4-5 Level 4 compliance. |
| IPPM | 384 A - Peak surge current handling capability with 10/1000 μs waveform; supports high-energy transients in motor drive circuits. |
| PPPM | 400 W - Peak pulse power rating; enables single-device protection against repetitive surges up to 0.01% duty cycle. |
| ID @ VWM | ≤1.0 μA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in always-on systems. |
| TJ max | +175 °C - Extended junction temperature rating allows placement near heat sources in power electronics enclosures. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional operation; compliant with UL 94 V-0 flammability rating and J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Transient conduction path | Identical terminals for symmetrical bidirectional clamping; no cathode band-device functions identically in either orientation. |
| Leads (both) | PCB interconnect & thermal path | Lead length ≥0.375" (9.5 mm) required for 40 A surge rating; thermal resistance to ambient depends on PCB copper area. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift over 10+ years in humid or thermally cycled environments. |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics; includes HTOL, TC, UHAST, and ESD testing per stress test plan. |
| 400 W 10/1000 μs pulse rating | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (1.2/50 μs + 8/20 μs). |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<10 ns rise time), improving protection margin for sensitive analog front-ends. |
| JESD 201 Class 1A whisker resistance | E3 suffix confirms lead finish resists tin whisker growth under high humidity and bias, critical for aerospace and medical applications. |
Applications
| Industrial Motor Control | Automotive Body Control Module |
|---|---|
Use Scenario: Protection of gate driver supply rails against inductive kickback from solenoid valves and relay coils in PLC I/O modules. IC Role / Device Role: Bidirectional clamping element placed between 24 V rail and ground, absorbing >300 A transients without failure. Use Value: Prevents latch-up and permanent damage to isolated DC-DC controllers and optocouplers during frequent switching cycles. |
Use Scenario: Surge suppression on LIN bus power line and sensor supply inputs exposed to load dump and jump-start events. IC Role / Device Role: Primary TVS on 12 V distribution net feeding door module microcontrollers and Hall-effect sensors. Use Value: Maintains <1.0 μA leakage at 13.5 V nominal, avoiding battery drain while surviving 1000+ load dump cycles per AEC-Q101. |
| Telecom Power Feeds | Renewable Energy Inverter DC Link |
Use Scenario: Overvoltage protection on -48 V telecom rectifier outputs subjected to lightning-induced surges on outdoor cable runs. IC Role / Device Role: Secondary clamping stage after MOV-based primary protection, limiting residual voltage to <400 V. Use Value: Enables compact, low-capacitance design (no parasitic Cj impact on 2 Mbps data lines) while meeting GR-1089-CORE Level 3 requirements. |
Use Scenario: DC link protection in solar string inverters where PV array transients couple into 600–1000 V DC bus during rapid cloud transitions. IC Role / Device Role: Parallel-connected TVS array across DC bus capacitors to clamp fast dV/dt spikes from IGBT switching noise. Use Value: Withstands 175 °C junction temperature during sustained inverter operation, eliminating thermal runaway risk during overload conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ240CA | DO-214AA package; 240 V VWM; 38.5 A IPPM (vs. 384 A); 400 W PPPM; higher junction capacitance (~150 pF). | Lower surge current rating limits use to sub-100 A transient environments; SMB footprint requires PCB redesign. | Select when board space is constrained and peak surge energy is <10 J; verify layout thermal relief for 1.5 W PD. |
| P6SMB250CA | DO-214AA package; 250 V VWM; 35.7 A IPPM; same 400 W PPPM; AEC-Q101 qualified; RoHS-compliant. | Higher VWM reduces clamping margin for 240 V systems; lower IPPM necessitates parallel devices for >35 A surges. | Prefer for new designs targeting surface-mount assembly; confirm mechanical mounting compatibility with existing DO-41 fixtures. |
Compared with BZW04-239-E3/54, SMBJ240CA offers smaller footprint but sacrifices 10× peak current handling and thermal robustness, while P6SMB250CA trades clamping precision for SMT manufacturability-neither provides identical DO-41 through-hole reliability or 384 A single-device capability.
Availability
BZW04-239-E3/54 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power feeds, and renewable energy inverter designs requiring stable component supply with full traceability and long-lifecycle support.
Supply support for BZW04-239-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 qualification, wide temperature operation, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of BZW04-239-E3/54 at its rated peak pulse current?
The BZW04-239-E3/54 has a maximum clamping voltage (VC) of 384 V when subjected to its rated peak pulse current (IPPM) of 384 A under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The BZW04-239-E3/54 maintains this clamping performance across its specified operating temperature range, with minimal derating up to +125 °C.
Is BZW04-239-E3/54 suitable for automotive applications?
Yes, BZW04-239-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including body control modules, lighting drivers, and sensor interfaces exposed to load dump and jump-start transients. Its DO-41 package, 175 °C maximum junction temperature, and JESD 201 Class 1A whisker-resistant leads meet stringent automotive reliability requirements. The BZW04-239-E3/54 is documented in Vishay's AEC-Q101 stress test report for the BZW04 family.
Does BZW04-239-E3/54 have polarity markings?
No, BZW04-239-E3/54 is a bidirectional TVS diode and carries no polarity marking-its terminals are functionally identical. Unlike unidirectional variants (e.g., BZW04-239), the "B" suffix is omitted in the part number but implied by the absence of cathode banding and confirmed by its symmetric VBR and VC specifications in both directions. This symmetry allows flexible PCB placement without orientation constraints, simplifying assembly for the BZW04-239-E3/54.
What is the maximum reverse leakage current for BZW04-239-E3/54 at its standoff voltage?
The BZW04-239-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA when biased at its 239 V standoff voltage (VWM) and tested at TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on systems and prevents false triggering in high-impedance sensing circuits. Leakage remains below 5.0 μA across the full −55 °C to +125 °C operating range, as verified in Vishay's characterization data for the BZW04-239-E3/54.
How does the E3/54 suffix affect packaging and compliance of BZW04-239-E3/54?
"E3" denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker-resistant matte tin plating; "54" specifies packaging in 13-inch paper tape and reel, 550 units per reel. The BZW04-239-E3/54 meets UL 94 V-0 flammability and J-STD-002 solderability standards. While the base BZW04-239HE3/54 variant adds AEC-Q101 qualification, the BZW04-239-E3/54 itself is commercial-grade per Vishay's ordering matrix and datasheet notes.
BZW04-239-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:
- Active
- 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)
BZW04-239-E3/54 FAQ
1.How can I place an order for BZW04-239-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-239-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 BZW04-239-E3/54 reliable?
The price and inventory of BZW04-239-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 BZW04-239-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-239-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-239-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-239-E3/54?
BZW04-239-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-239-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 BZW04-239-E3/54?
For technical support, including BZW04-239-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-239-E3/54 requirements.
6.How does Aetrix verify that BZW04-239-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-239-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 BZW04-239-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-239-E3/54?
All BZW04-239-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-239-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 BZW04-239-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-239-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-239-E3/54 Tags
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