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Vishay General Semiconductor - Diodes Division BZW04-299-E3/54
- Part No.:
- BZW04-299-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-299-E3/54.pdf
- Description:
- TVS DIODE 299VWM 482VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
BZW04-299-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 299 V standoff voltage (VWM), 332–368 V breakdown range (VBR at 1 mA), 482 A peak pulse current (IPPM), and clamps transients to ≤482 V at rated surge-ideal for safeguarding industrial sensor interfaces and telecom line cards against lightning-induced surges.
For engineers reviewing the BZW04-299-E3/54 datasheet, BZW04-299-E3/54 pinout, BZW04-299-E3/54 application, or BZW04-299-E3/54 equivalent, this device delivers verified 400 W peak pulse power (10/1000 µs), AEC-Q101 qualification (via HE3 variant), RoHS-compliant matte tin leads, and UL 94 V-0 molded epoxy packaging-critical for automotive-grade reliability and high-volume PCB assembly.
Technical Context
This bidirectional TVS operates symmetrically in both polarities with identical VBR, IPPM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable clamping performance across -55 °C to +175 °C operating temperature range and supports repetitive 0.01% duty cycle surges.
The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD, inductive switching spikes, and lightning transients. Its 1.0 µA max reverse leakage at VWM minimizes standby power loss in always-on protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 299 V - Maximum continuous working voltage before clamping begins; defines safe operating margin for 240–277 V AC line or 28 V DC bus applications. |
| VBR (min/max) | 332 V / 368 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering above normal operating voltage with tight tolerance. |
| VC @ IPPM | ≤482 V at 482 A - Clamping voltage under full 400 W surge; limits protected circuit stress to safe levels during worst-case transients. |
| IPPM | 482 A - Peak pulse current capability with 10/1000 µs waveform; validates immunity to IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| PPPM | 400 W - Peak pulse power rating; enables single-device protection for medium-energy transients without derating. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in high-ambient environments such as industrial motor drives and outdoor telecom enclosures. |
| Package | DO-41 (DO-204AL) - Standard axial-leaded through-hole package; compatible with legacy wave-solder and hand-solder processes. |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, molded epoxy body meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards; no polarity marking (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Transient conduction path | Identical bidirectional terminals; conducts surge current in either direction when V exceeds VBR, protecting connected ICs or MOSFETs regardless of polarity. |
| Lead 1 / Lead 2 | PCB mounting interface | Standard axial leads for through-hole insertion; 0.028–0.034 inch diameter supports mechanical retention and thermal dissipation in board-level layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime-critical for mission-critical industrial systems. |
| 400 W peak pulse power (10/1000 µs) | Validated energy-handling capacity for repeated surge events without degradation; eliminates need for parallel devices in mid-power protection. |
| AEC-Q101 qualified (HE3 variant) | Meets automotive-grade reliability requirements including temperature cycling, HTRB, and ESD testing-enables use in vehicle ECUs and ADAS sensors. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation prevents fire propagation in fault conditions-required for safety-certified power supplies and building automation systems. |
| RoHS-compliant E3 suffix | Meets global environmental compliance (JESD201 Class 1A whisker test); supports lead-free manufacturing and export to EU, China, and Korea markets. |
Applications
| Industrial Motor Drives | Telecom Line Cards |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensing circuits against inductive kickback from IGBTs and contactor coils. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across DC bus or signal inputs to limit transient voltage to <482 V. Use Value: Prevents latch-up or permanent damage to isolated amplifiers and microcontrollers during frequent motor start/stop cycles. |
Use Scenario: Surge protection on T1/E1 interface lines exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary front-end TVS on balanced differential pairs, shunting >4 kV surges before reaching line transceivers. Use Value: Maintains signal integrity by clamping within 1 ns while adding <0.5 pF capacitance-no data rate degradation up to 2.048 Mbps. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: Input protection for LIN bus transceivers and power window control ICs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS on supply rail and communication lines, leveraging AEC-Q101 qualification for automotive deployment. Use Value: Survives 12 V system load dump (ISO 7637-2 Pulse 5a) without parametric shift-ensures functional safety compliance. |
Use Scenario: Overvoltage hardening of AC mains input stage and RS-485 communication ports in utility-grade meters. IC Role / Device Role / Timing Role: Standoff-rated (299 V) clamping device on 230 V AC input rectifier output and isolated data lines. Use Value: Blocks 6 kV surges per IEC 61000-4-5 while maintaining <1.0 µA leakage at 299 V-preserves meter accuracy and battery backup runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ280CA | DO-214AA package; 280 V VWM; 311–344 V VBR; 400 W PPPM; surface-mount only. | Requires PCB redesign for SMD layout; lower VWM reduces margin for 277 V AC systems. | Select when space-constrained designs demand SMD footprint and 280 V rating suffices. |
| 1.5KE270CA | DO-201AD package; 270 V VWM; 300–330 V VBR; 1500 W PPPM; higher surge capacity but larger size. | Over-spec'd for 400 W needs; bulkier DO-201AD may not fit dense industrial PCBs. | Select only when legacy 1.5KE footprint compatibility or >1 kW surge headroom is mandatory. |
Compared with SMBJ280CA and 1.5KE270CA, BZW04-299-E3/54 provides optimal balance of 299 V standoff margin, DO-41 through-hole compatibility, and precise 400 W rating-making it ideal for cost-sensitive, high-reliability industrial and telecom designs where axial mounting and exact voltage coordination are required.
Availability
BZW04-299-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, automotive body control modules, and smart energy meters requiring stable component supply across extended production lifecycles.
Supply support for BZW04-299-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, automotive, and computing applications.
The BZW04 series is engineered specifically for high-energy transient suppression in harsh environments, emphasizing stable clamping, AEC-Q101 qualification, and UL 94 V-0 safety compliance across its voltage range.
FAQ
What is the maximum clamping voltage of BZW04-299-E3/54 under rated surge conditions?
The BZW04-299-E3/54 clamps to a maximum of 482 V when subjected to its rated 482 A peak pulse current (10/1000 µs waveform). This value is measured per IEC 61000-4-5 test conditions and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. The clamping performance is guaranteed across the full operating temperature range (-55 °C to +175 °C) and remains stable due to the device's glass-passivated junction.
Is BZW04-299-E3/54 suitable for automotive applications?
BZW04-299-E3/54 itself is commercial-grade (E3 suffix), but the identical BZW04-299HE3/54 variant is AEC-Q101 qualified. For automotive use, specify the HE3 version-its qualification covers temperature cycling, high-temperature reverse bias, and ESD testing per automotive reliability standards. The BZW04-299-E3/54 should be used only in non-automotive contexts unless explicitly validated for the target vehicle subsystem.
How does the bidirectional nature of BZW04-299-E3/54 affect its placement in a circuit?
Because BZW04-299-E3/54 is bidirectional, it has no polarity marking and functions identically in both directions-making it ideal for protecting AC-coupled signals, transformer-isolated interfaces, or ungrounded DC buses. It can be placed directly across any two nodes needing symmetrical overvoltage protection without regard to orientation, simplifying layout and eliminating risk of reverse installation errors common with unidirectional TVS diodes.
What is the thermal derating behavior of BZW04-299-E3/54 above 25 °C ambient?
BZW04-299-E3/54 follows standard JEDEC thermal derating: its 400 W peak pulse power rating decreases linearly above 25 °C ambient, dropping to ~50% at 125 °C case temperature per Vishay's Fig. 2. Continuous power dissipation (PD) is limited to 1.5 W on an infinite heatsink at 75 °C lead temperature. For sustained surge duty, PCB copper area and airflow must be evaluated using the device's thermal resistance (RθJA ≈ 100 °C/W typical) to avoid exceeding 175 °C maximum junction temperature.
Does BZW04-299-E3/54 meet RoHS and REACH compliance requirements?
Yes, the "E3" suffix confirms BZW04-299-E3/54 is RoHS-compliant per EU Directive 2011/65/EU and meets Vishay's material declaration standard (Doc. 99912). It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. The matte tin plating also satisfies JESD201 Class 1A whisker testing, ensuring long-term solder joint reliability in high-vibration environments.
BZW04-299-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):
- 299V
- Voltage - Breakdown (Min):
- 332V
- Voltage - Clamping (Max) @ Ipp:
- 482V
- Current - Peak Pulse (10/1000µs):
- 800mA
- 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)
BZW04-299-E3/54 FAQ
1.How can I place an order for BZW04-299-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-299-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 BZW04-299-E3/54 reliable?
The price and inventory of BZW04-299-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 BZW04-299-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-299-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-299-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-299-E3/54?
BZW04-299-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-299-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 BZW04-299-E3/54?
For technical support, including BZW04-299-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-299-E3/54 requirements.
6.How does Aetrix verify that BZW04-299-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-299-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 BZW04-299-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-299-E3/54?
All BZW04-299-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-299-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 BZW04-299-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-299-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04-299-E3/54 Tags
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