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Vishay General Semiconductor - Diodes Division BZW04P28-E3/54
- Part No.:
- BZW04P28-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P28-E3/54.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,240
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Product details
Overview
BZW04P28-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 28.2 V stand-off voltage (VWM), 31.4–36.3 V breakdown range (VBR at 1 mA), 45.7 V clamping voltage (VC) at 8.8 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P28-E3/54 datasheet, BZW04P28-E3/54 pinout, BZW04P28-E3/54 application, or BZW04P28-E3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-204AL package dimensions, clamping performance under surge conditions, and direct alternatives for layout-constrained designs.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling single-device protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and low incremental surge resistance, critical for repeatable clamping during repetitive transients.
The device complies with ANSI/IEEE C62.35 surge standards and is rated for 175 °C maximum junction temperature. Its 10/1000 µs waveform response supports IEC 61000-4-5 Level 3/4 surge immunity requirements when used with appropriate series impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28.2 V - Maximum continuous reverse operating voltage before significant conduction begins; defines safe working margin below breakdown. |
| VBR (min/max) | 31.4 V / 36.3 V at 1 mA - Voltage range where device transitions from high-impedance to low-impedance clamping state; ensures reliable turn-on across process variation. |
| VC @ IPPM | 45.7 V at 8.8 A - Clamped voltage during 400 W 10/1000 µs surge; determines maximum stress imposed on downstream circuitry. |
| PPPM | 400 W - Peak pulse power handling capability; validates suitability for automotive load-dump and inductive-switching transient suppression. |
| IPPM | 8.8 A - Peak pulse current corresponding to 400 W rating; used to size series impedance and verify PCB trace current capacity. |
| TJ max. | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures without derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47; required for engine control, ADAS, and body electronics. |
Pinout & Package
DO-204AL (DO-41) molded epoxy package with axial leads; matte tin-plated terminals compliant with J-STD-002 solderability and JESD22-B102 wetting balance testing. No polarity marking - bi-directional symmetry confirmed by design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (axial) | Bi-directional surge path | Both ends function identically; no cathode band - enables placement flexibility and eliminates orientation errors in automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable leakage current (<1 µA at VWM) and long-term parameter consistency across thermal and humidity stress. |
| 400 W peak pulse power (10/1000 µs) | Validates protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave surges in 12 V systems. |
| AEC-Q101 qualification | Confirms compliance with automotive reliability requirements including HTOL, TC, and ESD-HBM ≥ 8 kV - suitable for front-end protection in ECUs. |
| UL 94 V-0 molding compound | Meets flammability safety standard for enclosed industrial and automotive applications where fire risk must be minimized. |
| RoHS-compliant (E3 suffix) | Lead-free matte tin plating meets Directive 2011/65/EU; JESD201 Class 1A whisker resistance validated for high-reliability solder joints. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ESD and load-dump transients in vehicle cabins and powertrain zones. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between signal line and ground, responding within <1 ns to divert surge energy away from sensitive IC pins. Use Value: Maintains signal integrity during ISO 10605 ±15 kV contact discharge and prevents latch-up in 3.3 V/5 V sensor signal chains. |
Use Scenario: Safeguarding PLC digital input modules exposed to inductive kickback from solenoids, relays, and motor drivers in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, absorbing repetitive 400 W transients without degradation over 100,000+ cycles. Use Value: Eliminates need for external MOVs or gas discharge tubes, reducing BOM count while meeting IEC 61000-4-4 Level 4 immunity. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from lightning-induced surges entering via RJ-45 ports in residential gateways and base stations. IC Role / Device Role / Timing Role: Secondary-level protector downstream of GDTs or primary TVS arrays, providing precise clamping at ≤45.7 V to prevent PHY damage. Use Value: Enables compact, low-capacitance (<50 pF) protection solution compatible with 100BASE-TX signaling integrity. |
Use Scenario: Suppressing output overvoltage spikes caused by regulator failure or feedback loop disruption in USB-C PD and multi-USB wall adapters. IC Role / Device Role / Timing Role: Fail-safe crowbar element that shorts output to ground upon sustained overvoltage, triggering upstream OCP and preventing device damage. Use Value: Provides certified secondary-side protection meeting UL 62368-1 Annex D requirements for abnormal overvoltage conditions. |
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 | Uni-directional; 28 V VWM, 45.4 V VC @ 8.8 A; same DO-214AA package but surface-mount. | Requires polarity-aware layout; not suitable for AC or floating lines without additional components. | Select when board space is constrained and unidirectional signal paths allow simplified routing. |
| 1.5KE27CA | Higher PPPM (1500 W); 27 V VWM, 43.0 V VC @ 35 A; DO-201AD package, larger footprint. | Overqualified for 400 W needs; higher capacitance (150 pF) limits high-speed data line use. | Choose only when legacy designs require backward compatibility or extreme surge margin beyond automotive requirements. |
Compared with SMBJ28A-E3/52 and 1.5KE27CA, BZW04P28-E3/54 offers bi-directional symmetry in a compact axial DO-41 package with AEC-Q101 validation - making it optimal for new automotive and industrial designs requiring polarity-agnostic protection without SMT rework or footprint expansion.
Availability
BZW04P28-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O modules, and telecom line interface applications requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for BZW04P28-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 performance.
The BZW04P series belongs to Vishay's TransZorb® TVS family engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 qualification and repeatable clamping are mandatory.
FAQ
What is the clamping voltage of BZW04P28-E3/54 under a 400 W surge?
The BZW04P28-E3/54 clamps to a maximum of 45.7 V at 8.8 A peak pulse current, corresponding to the standardized 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 BZW04P28-E3/54 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Is BZW04P28-E3/54 suitable for automotive applications?
Yes, BZW04P28-E3/54 is AEC-Q101 qualified and specifically designed for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. Its DO-204AL package, 175 °C junction rating, and validation across temperature cycling, HTRB, and ESD-HBM ≥ 8 kV confirm compliance with automotive reliability requirements. The BZW04P28-E3/54 is referenced in Vishay's automotive-grade TVS portfolio documentation.
Does BZW04P28-E3/54 have polarity markings?
No, BZW04P28-E3/54 is a bi-directional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation on the PCB, simplifying assembly and eliminating risk of reverse placement. This feature is explicitly confirmed in the Vishay datasheet footnote stating "no marking on bi-directional types" for the BZW04P-B series.
What is the maximum reverse leakage current of BZW04P28-E3/54 at its stand-off voltage?
At its 28.2 V stand-off voltage (VWM) and 25 °C ambient temperature, the BZW04P28-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage ensures minimal power loss in standby mode and avoids false triggering in high-impedance sensing circuits. The value is specified in the Electrical Characteristics table of the Vishay document 88316.
How does the E3 suffix in BZW04P28-E3/54 affect its compliance status?
The E3 suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 1A whisker resistance. It confirms lead-free finish, UL 94 V-0 flammability rating of the epoxy mold, and compliance with Directive 2011/65/EU. While the HE3 variant adds AEC-Q101 qualification, the E3 version retains full electrical specifications and is approved for industrial and consumer applications where automotive qualification is not required. The BZW04P28-E3/54 is documented as E3-base in Vishay's ordering information table.
BZW04P28-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):
- 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)
BZW04P28-E3/54 FAQ
1.How can I place an order for BZW04P28-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P28-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 BZW04P28-E3/54 reliable?
The price and inventory of BZW04P28-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 BZW04P28-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P28-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P28-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P28-E3/54?
BZW04P28-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P28-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 BZW04P28-E3/54?
For technical support, including BZW04P28-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P28-E3/54 requirements.
6.How does Aetrix verify that BZW04P28-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P28-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 BZW04P28-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P28-E3/54?
All BZW04P28-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P28-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 BZW04P28-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P28-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P28-E3/54 Tags
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