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Vishay General Semiconductor - Diodes Division BZW04-33BHE3/54
- Part No.:
- BZW04-33BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-33BHE3/54.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,691
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Product details
Overview
BZW04-33BHE3/54 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 33.3 V stand-off voltage (VWM), 37.1–41.0 V breakdown voltage (VBR) at 1 mA, 53.9 V maximum clamping voltage (VC) at 7.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - suitable for protecting automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the BZW04-33BHE3/54 datasheet, BZW04-33BHE3/54 pinout, BZW04-33BHE3/54 application, or BZW04-33BHE3/54 equivalent, this device serves as an AEC-Q101 qualified, RoHS-compliant bidirectional TVS for robust ESD and surge protection in space-constrained PCB layouts requiring stable clamping performance up to 175 °C junction temperature.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR min/max (37.1–41.0 V), VC (53.9 V), and IPPM (7.4 A) specifications across reverse and forward directions. Its glass-passivated junction ensures low leakage (<1.0 μA at VWM) and fast response time under transient stress.
The device uses a DO-41 (DO-204AL) axial-leaded package with matte tin-plated leads compliant with J-STD-002 and JESD22-B102, rated for solder dip at 275 °C for 10 s. It is AEC-Q101 qualified and meets UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - maximum continuous operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 37.1 V / 41.0 V at 1 mA - guaranteed breakdown threshold range; ensures consistent turn-on behavior across production lots. |
| VC @ IPPM | 53.9 V at 7.4 A - clamped voltage during 10/1000 μs surge; limits downstream voltage stress to safe levels. |
| PPPM | 400 W - peak pulse power handling capability; supports high-energy transients like ISO 7637-2 Pulse 1/2a/5a in automotive systems. |
| ID @ VWM | <1.0 μA - ultra-low reverse leakage; minimizes standby power loss and avoids false triggering in high-impedance nodes. |
| TJ max. | +175 °C - extended junction temperature rating; enables use in under-hood automotive or industrial environments. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with matte tin-plated leads. No polarity marking - bidirectional operation confirmed by "B" suffix and symmetric electrical characteristics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Transient conduction path | Identical bidirectional terminals - either lead conducts during overvoltage in either polarity; no orientation required during placement. |
| Leads (both) | PCB interface & thermal path | Matte tin-plated, solderable per J-STD-002; supports manual or wave soldering; lead length contributes to thermal dissipation in free-air conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and low leakage over temperature and lifetime; critical for long-term reliability in harsh environments. |
| 400 W peak pulse power (10/1000 μs) | Supports repetitive surge events without degradation; meets IEC 61000-4-5 Level 3 (1 kV line-to-line) with margin. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| UL 94 V-0 molding compound | Prevents flame propagation during fault conditions; satisfies safety requirements for industrial and transportation equipment. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualified commercial-grade variant with JESD201 Class 2 whisker resistance - suitable for high-reliability production. |
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 switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential or single-ended signal lines upstream of IC input pins. Use Value: Limits transient voltage to ≤53.9 V during 7.4 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from solenoid coils or motor drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted directly at connector entry point. Use Value: Absorbs 400 W pulses without failure, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity standards for industrial control hardware. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Clamp |
|
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection to handle residual energy. Use Value: Fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.4) ensure protected ICs see minimal overvoltage - critical for high-speed data integrity. |
Use Scenario: Clamping AC line surges on secondary-side DC rails (e.g., 12 V or 24 V outputs) in smart home appliances like washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Final-stage transient suppressor across regulated output, guarding microcontrollers and display drivers. Use Value: Withstands repeated 10/1000 μs pulses at 0.01% duty cycle, ensuring longevity in cost-sensitive consumer products with no active cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | Same VWM (33.0 V) and VC (53.3 V), but SMC (DO-214AB) surface-mount package; 600 W PPPM rating. | Requires PCB rework for SMT layout; better suited for automated assembly and higher power density designs. | Select SMBJ33CA when board space is constrained and SMT process is available; not drop-in compatible with DO-41 footprint. |
| P6KE33CA | Legacy 600 W TVS in DO-15 package; VWM = 33.0 V, VC = 53.3 V, but higher leakage (5.0 μA) and no AEC-Q101 qualification. | Lacks automotive qualification and exhibits wider VBR tolerance (31.4–34.6 V); limited to commercial/industrial use. | Choose P6KE33CA only for non-automotive cost-sensitive applications where AEC-Q101 is not mandated. |
Compared with BZW04-33BHE3/54, SMBJ33CA offers higher surge rating and SMT compatibility but requires layout change, while P6KE33CA lacks automotive qualification and has looser parametric control - making BZW04-33BHE3/54 the optimal choice for AEC-Q101–compliant, through-hole–based designs needing proven reliability and tight VBR consistency.
Availability
BZW04-33BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 validation, and DO-41 through-hole compatibility.
Supply support for BZW04-33BHE3/54 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and communications infrastructure where robustness and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of BZW04-33BHE3/54 under a standard 10/1000 μs surge?
The BZW04-33BHE3/54 clamps to a maximum of 53.9 V when subjected to its rated peak pulse current of 7.4 A using the 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 transient events - a key parameter for ensuring safe operation of 3.3 V or 5 V interface ICs protected by the BZW04-33BHE3/54.
Is BZW04-33BHE3/54 suitable for automotive applications?
Yes, BZW04-33BHE3/54 is AEC-Q101 qualified and carries the HE3 suffix indicating compliance with automotive reliability standards, including temperature cycling, high-temperature reverse bias (HTRB), and ESD testing. Its DO-41 package, 175 °C max junction temperature, and stable clamping performance make it appropriate for under-hood and body-control module applications - confirming BZW04-33BHE3/54 as a validated solution for automotive transient protection.
How does the "B" suffix in BZW04-33BHE3/54 affect its functionality?
The "B" suffix denotes bidirectional configuration: BZW04-33BHE3/54 provides symmetrical clamping in both polarities, with identical VBR (37.1–41.0 V), VC (53.9 V), and IPPM (7.4 A) values for positive and negative transients. Unlike unidirectional variants (e.g., BZW04-33HE3/54), it requires no polarity marking or orientation during PCB placement - simplifying design and assembly for AC-coupled or differential signal protection where BZW04-33BHE3/54 is deployed.
What is the maximum reverse leakage current for BZW04-33BHE3/54 at its stand-off voltage?
At its 33.3 V stand-off voltage (VWM) and TA = 25 °C, the BZW04-33BHE3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage ensures minimal power drain in always-on circuits and prevents false triggering in high-impedance sensing nodes - a critical specification verified across production lots and maintained over temperature for the BZW04-33BHE3/54.
Does BZW04-33BHE3/54 require heatsinking in typical applications?
No, BZW04-33BHE3/54 is rated for 1.5 W power dissipation on an infinite heatsink at TL = 75 °C but is typically used for short-duration transient suppression rather than continuous power handling. In standard applications - such as protecting 24 V I/O lines or CAN bus signals - its DO-41 package dissipates surge energy without external heatsinking. Thermal design guidance for sustained power scenarios is provided in Figure 5 of the BZW04-33BHE3/54 datasheet.
BZW04-33BHE3/54 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04-33BHE3/54 FAQ
1.How can I place an order for BZW04-33BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-33BHE3/54 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 BZW04-33BHE3/54 reliable?
The price and inventory of BZW04-33BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-33BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-33BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-33BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-33BHE3/54?
BZW04-33BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-33BHE3/54 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 BZW04-33BHE3/54?
For technical support, including BZW04-33BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-33BHE3/54 requirements.
6.How does Aetrix verify that BZW04-33BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-33BHE3/54 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 BZW04-33BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-33BHE3/54?
All BZW04-33BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-33BHE3/54, 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 BZW04-33BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04-33BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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