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Vishay General Semiconductor - Diodes Division BZW04-239B-E3/54
- Part No.:
- BZW04-239B-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-239B-E3/54.pdf
- Description:
- TVS DIODE 239VWM 384VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,385
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Product details
Overview
BZW04-239B-E3/54 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 239 V standoff voltage (VWM), 266–294 V breakdown voltage (VBR) at 1 mA, 384 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) 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 BZW04-239B-E3/54 datasheet, BZW04-239B-E3/54 pinout, BZW04-239B-E3/54 application, or BZW04-239B-E3/54 equivalent, key selection criteria include bidirectional clamping capability, 175 °C maximum junction temperature, AEC-Q101 qualification status, low leakage (<1.0 μA at VWM), and compatibility with automated SMT placement via 13" paper tape and reel (E3/54 packaging).
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its bidirectional architecture eliminates polarity marking requirements and enables direct integration into AC-coupled or floating signal paths without orientation constraints.
Clamping performance is defined by a maximum 384 V clamping voltage (VC) at 384 A IPPM, with a temperature coefficient of VBR at 0.110 %/°C. The device sustains repetitive 10/1000 μs pulses at 0.01 % duty cycle and meets JESD22-B102 solderability standards with matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 239 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 266 V / 294 V at 1 mA - Ensures reliable avalanche conduction onset across production lot |
| IPPM | 384 A - Peak surge current handled with 10/1000 μs waveform, critical for inductive load snubbing |
| VC | 384 V - Clamped voltage during max surge, defining protected circuit's maximum transient exposure |
| PPPM | 400 W - Peak pulse power rating enabling robust protection against lightning-induced surges |
| ID @ VWM | <1.0 μA - Ultra-low leakage preserves signal integrity in high-impedance sensor interfaces |
| TJ max | +175 °C - Enables operation in under-hood automotive or industrial motor drive environments |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking required for bidirectional operation. Leads are matte tin-plated, solderable per J-STD-002 and JESD22-B102, rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative voltage excursions; symmetric with cathode due to bidirectional design |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive voltage excursions; electrically identical to anode in B-suffix parts |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift |
| AEC-Q101 qualified | Validated for automotive electronics applications including engine control and body modules |
| 400 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) in properly designed PCB layouts |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and telecom equipment |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., relay bounce, MOSFET turn-off) |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against voltage spikes from contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across DC bus or signal inputs to limit transient overvoltage. Use Value: Prevents latch-up or permanent damage to isolated gate drivers and analog front-end ICs operating near 24 V nominal rails. | Use Scenario: Safeguarding LIN bus transceivers and door module microcontrollers from battery dump and load-dump events. IC Role / Device Role / Timing Role: Primary TVS on power input and data lines to absorb ISO 7637-2 Pulse 5a/b energy. Use Value: Maintains functional safety compliance (ISO 26262 ASIL-B) by ensuring system reset rather than failure during 12 V rail disturbances. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Surge suppression on -48 V DC power feeds in remote radio units and base station backhaul interfaces. IC Role / Device Role / Timing Role: Standoff-clamp TVS in series with primary DC-DC converter input to meet GR-1089-CORE Level 3 requirements. Use Value: Limits clamped voltage to ≤384 V, allowing downstream 400 V-rated input capacitors and FETs to remain within safe operating area. | Use Scenario: Protecting microcontroller GPIOs and relay coil flyback paths in washing machine and HVAC control boards. IC Role / Device Role / Timing Role: Low-leakage bidirectional suppressor on 5 V/3.3 V I/O lines and 24 V solenoid drivers. Use Value: Eliminates need for separate unidirectional devices on AC-coupled audio or sensor inputs while maintaining <1 μA standby current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ230CA | DO-214AA package; 230 V VWM; 389 A IPPM; same 400 W PPPM but higher thermal resistance | Surface-mount alternative requiring PCB layout change; lower mounting height but reduced power derating above 75 °C | Select when space-constrained SMT assembly is required and thermal management allows for higher junction rise |
| P6SMB240CA | DO-214AA package; 240 V VWM; 370 A IPPM; 600 W PPPM rating but wider VBR tolerance (±5 % vs ±5.5 %) | Higher peak power handling but looser breakdown consistency; not AEC-Q101 qualified | Prefer for cost-sensitive industrial power supplies where automotive qualification is unnecessary |
Compared with BZW04-239B-E3/54, SMBJ230CA offers SMT compatibility at the expense of axial lead reliability and thermal performance, while P6SMB240CA trades AEC-Q101 validation and tighter VBR control for higher surge margin in non-automotive settings.
Availability
BZW04-239B-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feed applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for BZW04-239B-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 supplier of discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and passive components with emphasis on reliability and automotive-grade qualification.
The BZW04 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where consistent clamping voltage, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the BZW04-239B-E3/54 under maximum surge conditions?
The BZW04-239B-E3/54 exhibits a maximum clamping voltage (VC) of 384 V when subjected to its rated peak pulse current of 384 A using the standard 10/1000 μs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuits during transient events. The clamping behavior remains symmetrical in both directions due to its bidirectional construction, and VC is guaranteed across the full operating temperature range of −55 °C to +175 °C.
Is the BZW04-239B-E3/54 qualified for automotive applications?
Yes, the BZW04-239B-E3/54 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 16-Sep-2021 (Document Number: 88316). This qualification validates its reliability for use in automotive electronic systems including body control modules, lighting controllers, and power distribution units. The qualification covers stress tests such as high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - all performed on the exact BZW04-239B-E3/54 variant.
What does the "B" suffix indicate in BZW04-239B-E3/54?
The "B" suffix in BZW04-239B-E3/54 explicitly denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both forward and reverse bias directions. Unlike unidirectional variants (e.g., BZW04-239-E3/54), it has no cathode marking and can be installed without orientation concerns. Electrical characteristics - including VWM, VBR, IPPM, and VC - apply identically in either polarity, making it ideal for AC signal lines, transformer-coupled interfaces, and floating power domains.
What packaging format is used for the BZW04-239B-E3/54?
The BZW04-239B-E3/54 is supplied in 13-inch diameter paper tape and reel format, designated by the "/54" suffix in the part number. Each reel contains 550 units, and the "E3" prefix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD22-B102 solderability requirements. This packaging supports automated pick-and-place assembly and is compatible with standard axial-lead feeders.
How does the temperature coefficient affect the BZW04-239B-E3/54's breakdown voltage?
The BZW04-239B-E3/54 has a maximum temperature coefficient of VBR of +0.110 %/°C, meaning its breakdown voltage increases by up to 0.110 % for every 1 °C rise in junction temperature. At 175 °C maximum TJ, this results in a worst-case VBR increase of approximately +16.5 V relative to the 25 °C specification (266–294 V). Designers must account for this drift when setting safety margins for protected ICs, especially in high-ambient environments like engine compartments or enclosed power converters.
BZW04-239B-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:
- -
- Bidirectional Channels:
- 1
- 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)
BZW04-239B-E3/54 FAQ
1.How can I place an order for BZW04-239B-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-239B-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 BZW04-239B-E3/54 reliable?
The price and inventory of BZW04-239B-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 BZW04-239B-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-239B-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-239B-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-239B-E3/54?
BZW04-239B-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-239B-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 BZW04-239B-E3/54?
For technical support, including BZW04-239B-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-239B-E3/54 requirements.
6.How does Aetrix verify that BZW04-239B-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-239B-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 BZW04-239B-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-239B-E3/54?
All BZW04-239B-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-239B-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 BZW04-239B-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-239B-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-239B-E3/54 Tags
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