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Vishay General Semiconductor - Diodes Division BZW04-28-E3/54
- Part No.:
- BZW04-28-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-28-E3/54.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,653
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Product details
Overview
BZW04-28-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 28.2 V stand-off voltage (VWM), 31.4–34.7 V breakdown voltage (VBR) at 1 mA, 45.7 V maximum clamping voltage (VC) at 8.8 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the BZW04-28-E3/54 datasheet, BZW04-28-E3/54 pinout, BZW04-28-E3/54 application, or BZW04-28-E3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical data, clamping performance under standardized surge conditions, and direct alternatives for circuit protection redesign.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR min/max, VC, and IPPM values in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and low incremental surge resistance, enabling precise clamping during fast transients (response time <1 ns).
The device complies with ANSI/IEEE C62.35 surge standards and is rated for -55 °C to +175 °C operating junction temperature. It supports repetitive 10/1000 μs pulses at 0.01% duty cycle and withstands solder dip up to 275 °C for 10 s per JESD22-B106.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28.2 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (min/max) | 31.4 V / 34.7 V at 1 mA - guaranteed breakdown range ensuring predictable turn-on during overvoltage events |
| VC @ IPPM | 45.7 V at 8.8 A - clamped voltage seen by protected circuit during full 400 W transient; limits stress on downstream components |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surge tests |
| ID @ VWM | ≤1.0 μA - ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes |
| TJ max. | +175 °C - extended thermal capability enables use in under-hood automotive or high-temperature industrial environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional configuration; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical bidirectional behavior - either lead serves as input/output; no orientation required during placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 400 W peak pulse power (10/1000 μs) | Validates compliance with IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment |
| AEC-Q101 qualification | Confirms suitability for automotive body electronics, infotainment power rails, and ADAS sensor protection |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial control cabinets and consumer enclosures |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes voltage overshoot during transients - critical for protecting 3.3 V or 5 V logic interfaces |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors in BLDC motor inverters exposed to inductive kickback from relay switching and PWM noise. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power supply rails and signal lines to limit transient voltages to safe levels during load dump or flyback events. Use Value: Prevents latch-up or permanent damage to microcontrollers and isolated gate drivers by limiting rail voltage to ≤45.7 V during 400 W surges. |
Use Scenario: Surge suppression on LIN bus lines and interior lighting control outputs in door modules and seat controllers. IC Role / Device Role / Timing Role: Fast-response TVS absorbing ESD (IEC 61000-4-2 ±15 kV contact) and load dump energy (ISO 7637-2 Pulse 5a) on 12 V systems. Use Value: Maintains signal integrity on low-speed buses while meeting AEC-Q101 automotive qualification for lifetime reliability. |
| Telecom Power Interface | Consumer Sensor Hub |
Use Scenario: Input protection for AC/DC adapter secondary-side DC outputs feeding PoE-powered devices and base station management circuits. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of DC-DC converters to clamp induced lightning surges (IEC 61000-4-5) before they reach regulation stages. Use Value: Enables compliance with EN 61000-6-2 immunity standards without requiring additional filtering or derating of converter components. |
Use Scenario: ESD protection for analog outputs of environmental sensor arrays (temperature, humidity, motion) in smart home hubs and wearables. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) bidirectional suppressor guarding high-impedance ADC inputs and I²C signal lines against human-body-model discharges. Use Value: Preserves measurement accuracy by avoiding DC offset drift caused by leakage current while responding in <1 ns to 8 kV ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28A-E3/52 | Unidirectional; 28 V VWM; DO-214AA package; 600 W PPPM; higher VC (45.4 V) | Requires correct polarity orientation; better suited for DC rail protection where directionality is known | Select when higher pulse power margin is needed and board layout allows unidirectional placement |
| P6KE27CA | Unidirectional; 27 V VWM; DO-15 package; 600 W PPPM; VC = 43.0 V; no AEC-Q101 qualification | Lacks automotive qualification; larger DO-15 footprint; lower thermal resistance than DO-41 | Choose for cost-sensitive industrial designs where AEC-Q101 is not mandated and PCB space permits larger package |
Compared with SMBJ28A-E3/52 and P6KE27CA, BZW04-28-E3/54 offers bidirectional symmetry in compact DO-41 form factor with AEC-Q101 validation - making it optimal for space-constrained, polarity-agnostic protection in automotive and industrial signal lines where qualification and footprint are critical.
Availability
BZW04-28-E3/54 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and telecom power interface applications requiring stable component supply, RoHS-compliant sourcing, and traceable lot-level documentation.
Supply support for BZW04-28-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The BZW04 series is part of Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and tight VBR tolerance are mandatory.
FAQ
What is the polarity configuration of BZW04-28-E3/54?
BZW04-28-E3/54 is a bidirectional TVS diode with symmetrical electrical characteristics in both directions. It has no polarity marking on the DO-41 package, and either lead may be connected to either side of the protected line. This eliminates orientation errors during automated assembly and simplifies design for AC-coupled or differential signal paths.
Does BZW04-28-E3/54 meet automotive qualification standards?
Yes, BZW04-28-E3/54 is AEC-Q101 qualified, as confirmed in Vishay document 88316. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD robustness - validating its suitability for automotive body electronics, infotainment power supplies, and sensor interface protection.
What is the maximum clamping voltage of BZW04-28-E3/54 under surge conditions?
The maximum clamping voltage (VC) of BZW04-28-E3/54 is 45.7 V at 8.8 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during a full 400 W transient event, ensuring downstream ICs remain within safe operating limits.
How does the DO-41 package of BZW04-28-E3/54 compare to SMD alternatives like SMBJ28A?
BZW04-28-E3/54 uses the axial DO-41 (DO-204AL) package, offering through-hole mounting compatibility and higher thermal mass than SMD packages. Unlike SMBJ28A-E3/52 in DO-214AA, it provides bidirectional operation in a smaller footprint than DO-15 but requires PCB real estate for axial leads rather than surface area.
Is BZW04-28-E3/54 RoHS-compliant and lead-free?
Yes, the "E3" suffix in BZW04-28-E3/54 indicates full RoHS compliance per EU Directive 2011/65/EU. The device uses matte tin-plated leads, meets JESD201 Class 1A whisker test requirements, and contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
BZW04-28-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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- 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)
BZW04-28-E3/54 FAQ
1.How can I place an order for BZW04-28-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-28-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 BZW04-28-E3/54 reliable?
The price and inventory of BZW04-28-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 BZW04-28-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-28-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-28-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-28-E3/54?
BZW04-28-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-28-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 BZW04-28-E3/54?
For technical support, including BZW04-28-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-28-E3/54 requirements.
6.How does Aetrix verify that BZW04-28-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-28-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 BZW04-28-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-28-E3/54?
All BZW04-28-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-28-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 BZW04-28-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-28-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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