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Vishay General Semiconductor - Diodes Division BZW04P33-E3/54
- Part No.:
- BZW04P33-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P33-E3/54.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,403
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Product details
Overview
BZW04P33-E3/54 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 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage (VC) at 7.4 A peak pulse current, and 400 W peak pulse power capability with a 10/1000 μs waveform - suitable for protecting MOSFETs, sensor interfaces, and industrial I/O circuits against inductive switching transients.
For engineers reviewing the BZW04P33-E3/54 datasheet, BZW04P33-E3/54 pinout, BZW04P33-E3/54 application, or BZW04P33-E3/54 equivalent, key selection considerations include its DO-41 package compatibility, bi-directional surge handling, AEC-Q101 qualification status, and verified clamping performance under repetitive 0.01% duty cycle pulses.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, delivering consistent clamping behavior across positive and negative transients without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response to ESD and lightning-induced surges.
The device complies with ANSI/IEEE C62.35 surge standards and supports operation from −55 °C to +175 °C junction temperature. It is rated for 400 W peak pulse power (10/1000 μs), with derating above 25 °C per Figure 2 and validated performance up to 175 °C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR (min/max) | 37.1 V / 42.9 V at 1 mA - Verified breakdown range ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 53.9 V at 7.4 A - Clamping voltage limits downstream component stress during 10/1000 μs surge events. |
| PPPM | 400 W - Peak pulse power rating determines survivability of standardized lightning/surge waveforms. |
| IPPM | 7.4 A - Peak pulse current capacity directly correlates with energy absorption (E = VC × IPPM × t). |
| TJ max | +175 °C - High junction temperature rating supports use in under-hood automotive and industrial environments. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with 0.205" body diameter and 0.026" lead diameter. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, glass-passivated chip in molded epoxy housing meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. Bi-directional types have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | No functional distinction between leads; conducts equally in both directions during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling. |
| 400 W peak pulse power (10/1000 μs) | Validated energy absorption capacity for IEC 61000-4-5 Level 3/4 surge immunity compliance. |
| AEC-Q101 qualified | Qualified for automotive applications including engine control units and body electronics modules. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for downstream ICs. |
| RoHS-compliant, matte tin-plated leads | Enables lead-free reflow and wave soldering while meeting environmental compliance requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal lines or supply rails to limit transient excursions. Use Value: Prevents latch-up or permanent damage to microcontrollers and analog front-ends during ISO 7637-2 pulse 1/2/5a events. |
Use Scenario: Safeguarding digital input/output terminals of programmable logic controllers against field wiring surges and ground loop transients. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on 24 V DC input channels and relay driver outputs. Use Value: Maintains system uptime by absorbing >400 W surge energy without degradation, supporting IEC 61000-4-4/5 compliance. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHYs, RS-485 transceivers, and DSL line drivers from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage transient suppressor mounted at connector entry point before signal conditioning circuitry. Use Value: Limits clamped voltage to ≤53.9 V, preserving integrity of 3.3 V/5 V interface ICs with <60 V absolute maximum ratings. |
Use Scenario: Protecting gate drivers and MCU GPIOs in washing machine, HVAC, and power tool motor control boards from brush-commutator noise. IC Role / Device Role / Timing Role: Parallel-connected TVS across H-bridge supply rails and feedback sensing nodes. Use Value: Withstands repetitive 0.01% duty cycle surges, enabling reliable operation in high-noise motor environments over product lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | Same 33 V VWM, but SMC (DO-214AB) surface-mount package; 600 W PPPM; higher IPPM (13.3 A). | Requires PCB redesign for SMT layout; better suited for space-constrained, high-density designs. | Select SMBJ33CA when board space is limited and reflow assembly is preferred over through-hole. |
| P6KE33CA | Same DO-41 package; lower PPPM (600 W), but higher VC (53.3 V); older generation with wider VBR tolerance. | Compatible footprint but less precise clamping; suitable for cost-sensitive non-automotive applications. | Choose P6KE33CA only for legacy designs where AEC-Q101 qualification is not required. |
Compared with SMBJ33CA and P6KE33CA, BZW04P33-E3/54 offers AEC-Q101 qualification and tighter VBR tolerance in the same DO-41 package, making it optimal for new automotive and industrial through-hole designs requiring certified reliability.
Availability
BZW04P33-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for BZW04P33-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, optoelectronics, and passive components for demanding industrial and automotive applications.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy bidirectional surge suppression in harsh environments where AEC-Q101 qualification and stable clamping performance are critical.
FAQ
What is the clamping voltage of BZW04P33-E3/54 under a standard 10/1000 μs surge?
The BZW04P33-E3/54 has a maximum clamping voltage (VC) of 53.9 V at 7.4 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The BZW04P33-E3/54 maintains this clamping performance across its full operating temperature range.
Is BZW04P33-E3/54 suitable for automotive applications?
Yes, BZW04P33-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control, body electronics, and sensor interfaces. Its DO-41 package, −55 °C to +175 °C operating range, and robust 400 W surge rating meet stringent automotive reliability requirements. The BZW04P33-E3/54 carries the "HE3" suffix variant for full AEC-Q101 compliance.
Does BZW04P33-E3/54 have polarity markings?
No, BZW04P33-E3/54 is a bi-directional TVS diode and carries no polarity marking on its DO-41 package. Both leads are functionally identical, allowing installation without orientation concerns. This symmetry ensures consistent clamping behavior for both positive and negative transients - a key design feature confirmed in the Vishay 88316 datasheet for all "B" suffix variants like BZW04P33B.
What is the standoff voltage (VWM) and why does it matter for BZW04P33-E3/54?
The standoff voltage (VWM) of BZW04P33-E3/54 is 33.3 V - the maximum continuous reverse voltage it can block without entering avalanche conduction. This parameter ensures normal circuit operation below 33.3 V while guaranteeing rapid clamping above that threshold. Selecting a VWM correctly above the system's maximum steady-state voltage prevents false triggering and leakage-related power loss in the BZW04P33-E3/54.
How does the glass passivation in BZW04P33-E3/54 improve reliability?
Glass passivation of the silicon junction in BZW04P33-E3/54 provides superior environmental protection against moisture, ionic contamination, and thermal stress versus polymer-passivated alternatives. This results in tighter VBR tolerance, lower leakage current stability over time, and extended operational life in humid or thermally cycled environments - all verified in Vishay's AEC-Q101 qualification testing for the BZW04P33-E3/54.
BZW04P33-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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 7.4A
- 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)
BZW04P33-E3/54 FAQ
1.How can I place an order for BZW04P33-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P33-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 BZW04P33-E3/54 reliable?
The price and inventory of BZW04P33-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 BZW04P33-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P33-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P33-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P33-E3/54?
BZW04P33-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P33-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 BZW04P33-E3/54?
For technical support, including BZW04P33-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P33-E3/54 requirements.
6.How does Aetrix verify that BZW04P33-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P33-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 BZW04P33-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P33-E3/54?
All BZW04P33-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P33-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 BZW04P33-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P33-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P33-E3/54 Tags
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