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Vishay General Semiconductor - Diodes Division BZW04-33-E3/54
- Part No.:
- BZW04-33-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-33-E3/54.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,170
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Product details
Overview
BZW04-33-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 33.3 V standoff voltage (VWM), 37.1–41.0 V breakdown voltage (VBR) at 1 mA, 53.9 V clamping voltage (VC) at 7.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor signal lines, industrial I/O ports, and telecom interface protection.
For engineers reviewing the BZW04-33-E3/54 datasheet, BZW04-33-E3/54 pinout, BZW04-33-E3/54 application, or BZW04-33-E3/54 equivalent, this page delivers verified electrical parameters, DO-41 terminal mapping, AEC-Q101 qualification status, clamping performance under surge conditions, and direct alternatives for ESD/lightning transient suppression in bidirectional AC-coupled or floating circuits.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 μA at VWM), while the 175 °C maximum junction temperature supports operation in under-hood automotive environments.
The 400 W peak pulse power rating is defined per 10/1000 μs waveform at TA = 25 °C, with derating above 25 °C per Figure 2. Clamping behavior is characterized by low incremental surge resistance, enabling rapid energy diversion during fast-rising transients such as inductive switch-off spikes or EFT bursts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - Maximum continuous reverse operating voltage before conduction begins; defines circuit's normal operating margin. |
| VBR (min/max) | 37.1 V / 41.0 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 53.9 V at 7.4 A - Clamped voltage during 400 W transient; determines protected IC's maximum stress level. |
| PPPM | 400 W - Peak pulse power handling per 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 3 surges. |
| IPPM | 7.4 A - Peak pulse current capability; directly correlates to surge energy absorption (≈ 2.2 J for 10/1000 μs). |
| TJ max. | 175 °C - Maximum junction temperature; enables use in high-ambient automotive and industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional configuration; compliant with UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping requires no orientation during PCB placement. |
| Case (body) | Thermal and mechanical interface | DO-41 body provides mechanical anchoring and limited heat sinking; thermal resistance θJA ≈ 120 °C/W typical. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 1 kV line-to-line in 2 Ω source impedance configurations. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS sensor modules requiring zero-failure field performance. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage overshoot during fast transients, protecting downstream 3.3 V or 5 V logic interfaces. |
| RoHS-compliant E3 suffix | Meets JESD201 Class 1A whisker resistance; suitable for lead-free reflow and high-reliability industrial assembly. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure sensors from load-dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp ±100 V transients within 1 ns response time. Use Value: Prevents latch-up or gate oxide damage in 3.3 V sensor front-ends by limiting voltage to ≤53.9 V during 7.4 A surge events. |
Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from field-wiring induced surges and EFT noise. IC Role / Device Role / Timing Role: Standoff-connected TVS shunting transient energy away from precision op-amps and ADC input stages. Use Value: Maintains signal integrity below 33.3 V operating threshold while absorbing >2 J of surge energy without degradation. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY magnetics and RS-485 transceivers against lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional clamping element across isolated data lines, referenced to local ground plane. Use Value: Enables compliance with ITU-T K.20/21 secondary protector requirements via 400 W pulse handling and <1 μA leakage at 33.3 V. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-inductance TVS mounted adjacent to motor driver FETs to clamp flyback voltages before reaching logic rails. Use Value: Eliminates need for snubber RC networks by providing sub-50 ns response and repeatable 53.9 V clamping under 1000× surge cycles. |
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 | DO-214AA package; 33 V VWM, 53.3 V VC @ 7.5 A; same 400 W rating but higher thermal mass and lower θJA. | Preferred where board space allows SMC/SMB footprint and higher surge repetition rate is required. | Select SMBJ33CA when layout permits surface-mount and thermal management exceeds DO-41 limits. |
| P6KE33CA | DO-15 package; 33 V VWM, 53.3 V VC @ 7.5 A; identical electrical specs but lower surge endurance due to larger junction area and slower thermal recovery. | Suitable for cost-sensitive consumer applications with infrequent surge exposure. | Choose P6KE33CA only if AEC-Q101 qualification is not required and surge duty cycle remains <0.001 %. |
Compared with BZW04-33-E3/54, SMBJ33CA offers superior thermal dissipation in SMT layouts, while P6KE33CA trades AEC-Q101 validation and tighter VBR tolerance for lower unit cost - making BZW04-33-E3/54 the optimal choice for automotive and high-reliability industrial designs demanding proven qualification and DO-41 through-hole robustness.
Availability
BZW04-33-E3/54 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, and telecom line interface protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BZW04-33-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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability 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 telecom infrastructure where AEC-Q101 compliance and bidirectional symmetry are mandatory.
FAQ
What is the polarity configuration of BZW04-33-E3/54?
BZW04-33-E3/54 is a bidirectional TVS diode with symmetrical anode/cathode terminals and no polarity marking on the DO-41 body. It clamps voltage transients equally in both directions, making it ideal for AC-coupled or floating signal lines where polarity cannot be guaranteed - unlike unidirectional variants such as BZW04-33-E3/54's counterpart BZW04-33-E3/54.
Is BZW04-33-E3/54 qualified for automotive applications?
Yes, BZW04-33-E3/54 carries the HE3 suffix variant (BZW04-33HE3/54) that is fully AEC-Q101 qualified. While the E3/54 version is RoHS-compliant commercial grade, its construction, glass passivation, and 175 °C TJ max. align with automotive thermal and reliability requirements - and the HE3/54 variant is explicitly validated for under-hood use per AEC-Q101 test conditions.
What does the "/54" suffix indicate in BZW04-33-E3/54?
The "/54" suffix in BZW04-33-E3/54 specifies the preferred packaging code: 13-inch diameter paper tape and reel containing 550 units. This format is optimized for automated pick-and-place assembly and matches Vishay's standard delivery mode for DO-41 devices - distinct from bulk or ammo-pack options used in manual or low-volume production.
How does BZW04-33-E3/54 perform under repeated surge stress?
BZW04-33-E3/54 is rated for repetitive 10/1000 μs surges at 0.01 % duty cycle, meaning up to 1 pulse per 10,000 μs. Its glass-passivated junction and low incremental surge resistance ensure minimal parameter drift after hundreds of rated pulses - verified per JEDEC JESD22-A115 reliability testing included in AEC-Q101 qualification for the HE3 variant.
Can BZW04-33-E3/54 replace older P6KE33CA devices in existing designs?
BZW04-33-E3/54 provides equivalent VWM, VBR, and VC specs to P6KE33CA but in a smaller DO-41 outline with tighter VBR tolerance (±5.4 % vs. ±10 %) and AEC-Q101 qualification for the HE3 variant. Direct replacement is electrically valid; however, mechanical fit must be confirmed due to differing DO-15 vs. DO-41 lead spacing and body dimensions.
BZW04-33-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):
- 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)
BZW04-33-E3/54 FAQ
1.How can I place an order for BZW04-33-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-33-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 BZW04-33-E3/54 reliable?
The price and inventory of BZW04-33-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 BZW04-33-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-33-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-33-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-33-E3/54?
BZW04-33-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-33-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 BZW04-33-E3/54?
For technical support, including BZW04-33-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-33-E3/54 requirements.
6.How does Aetrix verify that BZW04-33-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-33-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 BZW04-33-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-33-E3/54?
All BZW04-33-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-33-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 BZW04-33-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-33-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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