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Vishay General Semiconductor - Diodes Division BZW04P28HE3/54
- Part No.:
- BZW04P28HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P28HE3/54.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,923
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Product details
Overview
BZW04P28HE3/54 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), 45.7 V clamping voltage (VC) at 8.8 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), making it suitable for protecting MOSFETs, sensor interfaces, and industrial control inputs against ESD and inductive switching transients.
For engineers reviewing the BZW04P28HE3/54 datasheet, BZW04P28HE3/54 pinout, BZW04P28HE3/54 application, or BZW04P28HE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-41 package compatibility, bi-directional clamping symmetry, and verified 175 °C maximum junction temperature - critical for automotive body electronics and harsh-environment industrial designs.
Technical Context
This device operates as a voltage-clamped shunt protector with symmetrical breakdown behavior in both polarities, enabling use on 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, directly supporting fast transient response under IEC 61000-4-2 and ISO 16750-2 stress conditions.
The BZW04P28HE3/54 is rated for 400 W peak pulse power with a 10/1000 µs waveform at 0.01% duty cycle and derates linearly above 25 °C ambient per Figure 2 of Vishay Document 88316. Its 0.098 %/°C temperature coefficient of VBR ensures predictable clamping voltage drift across automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28.2 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below system rail. |
| VC @ IPPM | 45.7 V - Clamped voltage at 8.8 A peak pulse current; determines protected circuit's maximum transient exposure level. |
| IPPM | 8.8 A - Peak pulse current capability with 10/1000 µs waveform; validates immunity to common inductive load transients. |
| PPPM | 400 W - Peak pulse power rating; confirms suitability for repetitive surge events in industrial motor drives and power supplies. |
| TJ max. | 175 °C - Maximum junction temperature; enables operation in under-hood automotive and high-ambient industrial environments. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors, including temperature cycling and HTRB. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with 0.205" body diameter; compatible with legacy PCB layouts and wave soldering. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, cylindrical epoxy-molded case with matte tin-plated leads. No polarity marking - bi-directional functionality confirmed by absence of cathode band per datasheet note.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (reversible) | Bi-directional clamping terminal | Either lead serves as input/output node; identical electrical behavior in both directions - eliminates orientation constraints during placement. |
| Leads (both) | Current conduction path | Matte tin plating meets J-STD-002 solderability; supports 275 °C solder dip (10 s) and JESD22-B102 reflow profiles. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable leakage current (<1 µA at VWM) and long-term reliability under thermal cycling and humidity stress. |
| 400 W peak pulse power (10/1000 µs) | Supports repeated suppression of 100 V/10 A transients in 24 V industrial control buses without degradation. |
| AEC-Q101 qualification | Validates performance for automotive body electronics applications including LIN bus nodes and lighting drivers. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation required for safety-critical industrial and transportation equipment. |
| Bi-directional symmetry | Enables single-device protection of AC signals (e.g., RS-485, CAN physical layer) without external polarity management. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS diode clamping transients on 12 V supply and bidirectional data lines. Use Value: Prevents latch-up and gate oxide damage in 3.3 V/5 V logic ICs during ISO 7637-2 Pulse 5a events up to 100 V. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Voltage clamp on 4–20 mA loop and sensor excitation lines exposed to field wiring surges. Use Value: Maintains signal integrity by limiting transient overshoot to <46 V, preserving ADC reference stability and op-amp input range. |
| Telecom Power Supply Input | MOSFET Gate Protection |
Use Scenario: Secondary-side overvoltage protection on 48 V telecom rectifier outputs feeding DC/DC converters. IC Role / Device Role / Timing Role: Fast-response shunt limiter absorbing lightning-induced surges on distribution rails. Use Value: Limits rail excursion to 45.7 V during 10/1000 µs transients, preventing downstream converter IC failure. |
Use Scenario: Gate-source protection of N-channel power MOSFETs in half-bridge motor drivers subjected to shoot-through spikes. IC Role / Device Role / Timing Role: Bi-directional clamp between gate and source terminals to suppress ±20 V ringing. Use Value: Prevents gate oxide breakdown by clamping dv/dt-induced spikes within safe VGS limits (±20 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28CA | DO-214AA (SMB) package; 28 V VWM, 45.4 V VC @ 8.8 A; same PPPM but surface-mount only. | Requires PCB redesign for SMT layout; unsuitable for through-hole legacy systems. | Select when board space is constrained and reflow assembly is available. |
| P6KE27CA | DO-15 package; 27 V VWM, 45.0 V VC @ 8.8 A; lower PPPM (600 W peak but 1.5 kW non-repetitive); no AEC-Q101 qualification. | Lacks automotive qualification; higher VC tolerance may risk marginal IC protection margins. | Acceptable for commercial-grade industrial power supplies where AEC-Q101 is not mandated. |
Compared with SMBJ28CA and P6KE27CA, the BZW04P28HE3/54 uniquely combines AEC-Q101 qualification, DO-41 through-hole compatibility, and precise 28.2 V VWM with 45.7 V clamping - making it the preferred choice for automotive replacement modules and industrial retrofits requiring drop-in mechanical and electrical equivalence.
Availability
BZW04P28HE3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and telecom power supply protection requiring stable component supply and long-lifecycle support.
Supply support for BZW04P28HE3/54 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, and passive components for automotive, industrial, and computing markets.
The BZW04P series was engineered for high-energy transient suppression in harsh environments, emphasizing AEC-Q101 compliance, stable clamping, and robust thermal performance in axial-leaded packages.
FAQ
What is the maximum clamping voltage of the BZW04P28HE3/54 under standard test conditions?
The BZW04P28HE3/54 has a maximum clamping voltage (VC) of 45.7 V at 8.8 A peak pulse current with a 10/1000 µs waveform, as specified in Vishay Document 88316. This value defines the upper voltage limit imposed on protected circuits during transient events and is measured across the device terminals under standardized surge conditions. The BZW04P28HE3/54 maintains this clamping performance consistently due to its glass-passivated junction and low incremental surge resistance.
Is the BZW04P28HE3/54 suitable for automotive applications?
Yes, the BZW04P28HE3/54 is AEC-Q101 qualified per Vishay documentation, confirming its suitability for automotive applications including body control modules, lighting drivers, and sensor interfaces. Its 175 °C maximum junction temperature, robust surge handling, and bi-directional symmetry meet requirements for under-hood and chassis-mounted electronics. The BZW04P28HE3/54 is explicitly listed in the AEC-Q101 qualified "HE3" suffix family in the ordering table.
What does the "HE3/54" suffix indicate in BZW04P28HE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance; "54" specifies the preferred packaging code - 13-inch paper tape and reel with 550 units per reel. This matches the ordering information in Vishay Document 88316, confirming that BZW04P28HE3/54 is the AEC-Q101 qualified, tape-and-reel variant of the BZW04P28 bi-directional TVS diode.
How does the bi-directional functionality of the BZW04P28HE3/54 affect PCB layout?
The BZW04P28HE3/54 has no polarity marking and identical electrical characteristics in both directions, eliminating orientation constraints during placement. This simplifies PCB layout for AC-coupled or floating lines such as RS-485, CAN, or transformer-isolated power rails. Unlike uni-directional TVS diodes, the BZW04P28HE3/54 requires no cathode alignment check, reducing assembly errors and enabling symmetric routing in differential protection schemes.
What is the thermal derating behavior of the BZW04P28HE3/54 above 25 °C ambient?
The BZW04P28HE3/54 follows the derating curve in Figure 2 of Vishay Document 88316: peak pulse power (PPPM) decreases linearly above 25 °C ambient, reaching ~50% of 400 W at 125 °C junction temperature. Its 175 °C TJmax allows sustained operation in high-temperature enclosures when mounted with adequate lead length (≥9.5 mm) per JEDEC standards. This derating profile is critical for sizing heat dissipation in automotive and industrial power applications using the BZW04P28HE3/54.
BZW04P28HE3/54 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:
- -
- 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)
BZW04P28HE3/54 FAQ
1.How can I place an order for BZW04P28HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P28HE3/54 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 BZW04P28HE3/54 reliable?
The price and inventory of BZW04P28HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P28HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P28HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P28HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P28HE3/54?
BZW04P28HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P28HE3/54 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 BZW04P28HE3/54?
For technical support, including BZW04P28HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P28HE3/54 requirements.
6.How does Aetrix verify that BZW04P28HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P28HE3/54 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 BZW04P28HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P28HE3/54?
All BZW04P28HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P28HE3/54, 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 BZW04P28HE3/54 part is unused and in its original packaging.
Return procedure for BZW04P28HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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