My Inquiry
My Account
Vishay General Semiconductor - Diodes Division BZW04P28BHE3/54
- Part No.:
- BZW04P28BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P28BHE3/54.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,308
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZW04P28BHE3/54 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 voltage (VBR), 45.7 V clamping voltage (VC) at 8.8 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the BZW04P28BHE3/54 datasheet, BZW04P28BHE3/54 pinout, BZW04P28BHE3/54 application, or BZW04P28BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) package, bi-directional symmetry, low leakage (<1 µA at VWM), and temperature coefficient of VBR (0.098 %/°C) for stable clamping across operating range.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, enabling single-device protection against positive and negative transients without polarity constraints. Its glass-passivated junction ensures fast response time (<1 ns), low incremental surge resistance, and stable clamping performance under repetitive 10/1000 µs surges at 0.01% duty cycle.
Designed for high-reliability environments, BZW04P28BHE3/54 meets AEC-Q101 stress testing requirements and supports operation from –55 °C to +175 °C junction temperature. Its 1.5 W steady-state power dissipation (PD) and 275 °C solder dip tolerance (10 s) support automated assembly in automotive and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28.2 V - maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 31.4 V / 36.3 V at 1 mA - guaranteed breakdown threshold ensuring predictable turn-on |
| VC @ IPPM | 45.7 V at 8.8 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 400 W - peak transient energy absorption capability per IEC 61000-4-5 standard |
| ID @ VWM | <1 µA - ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| TJ max | +175 °C - extended thermal range enables under-hood and industrial control cabinet use |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package with UL 94 V-0 epoxy molding |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, cylindrical glass-passivated chip in molded epoxy housing; matte tin-plated leads compliant with J-STD-002 and JESD22-B102; no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction - either lead serves as input/output terminal for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| Glass passivated junction | Enables sub-nanosecond response and stable parametric performance over lifetime |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV) on 2 Ω source impedance lines |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU Directive 2011/65/EU material restrictions |
| Low clamping ratio (VC/VBR ≈ 1.3) | Minimizes let-through voltage to protect sensitive 3.3 V/5 V logic and analog front-ends |
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 engine control units. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal pair or supply rail to shunt surge energy before it reaches IC pins. Use Value: Prevents latch-up and gate oxide damage in 3.3 V microcontrollers and analog-to-digital converters by limiting transient voltage to ≤45.7 V. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation systems. IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point to absorb 1 kV/500 A surges per IEC 61000-4-4. Use Value: Maintains system uptime by eliminating false triggering and component failure caused by repetitive 10/1000 µs transients on 24 V DC inputs. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from lightning-induced surges on outdoor copper lines in access network equipment. IC Role / Device Role / Timing Role: Primary-level protector in multi-stage architecture, coordinated with GDT and MOV for graded energy handling. Use Value: Enables compliance with ITU-T K.20/K.21 immunity standards by clamping induced common-mode voltages within safe margins. | Use Scenario: Input-stage overvoltage suppression in AC-DC adapters subjected to mains-borne transients and capacitor discharge events. IC Role / Device Role / Timing Role: Secondary-side clamp on DC output rail to prevent overvoltage propagation to USB ports and charging circuits. Use Value: Avoids catastrophic failure of downstream USB PD controllers and battery management ICs during 1.2/50 µs line surges. |
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 | Same VWM (28 V), higher VC (48.4 V), SMB package (surface-mount) | Requires PCB rework for SMT layout; lower thermal mass limits repetitive surge endurance | Select when board space is constrained and automated assembly mandates SMT. |
| P6KE27CA | Lower PPPM (600 W), larger DO-15 package, higher VC (45.0 V), same VWM | Higher surge margin but less suitable for tight-tolerance 28 V rails due to wider VBR tolerance (±10%) | Choose for legacy designs where DO-15 footprint exists and higher single-pulse energy is prioritized. |
Compared with SMBJ28CA and P6KE27CA, BZW04P28BHE3/54 offers AEC-Q101 qualification, tighter VBR tolerance (±7.5%), and optimized thermal performance in DO-41 for through-hole reliability - making it preferred for automotive and industrial applications demanding long-term parametric stability.
Availability
BZW04P28BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line conditioning requiring stable component supply, long-lifecycle support, and AEC-Q101 traceability.
Supply support for BZW04P28BHE3/54 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 BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and communications infrastructure where failure modes must be mitigated at the component level.
FAQ
What is the clamping voltage of BZW04P28BHE3/54 under a 10/1000 µs surge?
The BZW04P28BHE3/54 clamps to a maximum of 45.7 V when subjected to its rated peak pulse current of 8.8 A with a 10/1000 µs waveform. This value is specified in the Vishay datasheet (Document Number: 88316, page 2) and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with 3.3 V or 5 V interface ICs downstream of the BZW04P28BHE3/54.
Is BZW04P28BHE3/54 suitable for automotive applications?
Yes, BZW04P28BHE3/54 is AEC-Q101 qualified (per datasheet note on page 3), confirming its suitability for automotive electronics including engine control units, body control modules, and ADAS sensor interfaces. The HE3 suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance - essential for under-hood and chassis-mounted applications where thermal cycling and vibration reliability are mandatory. BZW04P28BHE3/54 meets these requirements without derating.
What does the "B" suffix in BZW04P28BHE3/54 indicate?
The "B" suffix in BZW04P28BHE3/54 designates a bi-directional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike uni-directional variants (e.g., BZW04P28HE3/54), the BZW04P28BHE3/54 has no cathode marking and functions identically regardless of polarity - simplifying layout and eliminating orientation errors during manual or automated assembly.
How does the thermal performance of BZW04P28BHE3/54 compare to similar DO-41 TVS diodes?
BZW04P28BHE3/54 operates up to +175 °C junction temperature and dissipates 1.5 W continuously on an infinite heatsink at TL = 75 °C (per datasheet page 2). Its glass-passivated junction and DO-204AL package provide superior thermal stability versus standard epoxy-junction diodes. Compared to legacy DO-41 TVS parts, BZW04P28BHE3/54 maintains tighter VBR drift (0.098 %/°C) and lower thermal resistance - enabling reliable operation in sealed enclosures or high-ambient industrial settings.
Can BZW04P28BHE3/54 replace BZW04-28BHE3/54 in a design?
Yes, BZW04P28BHE3/54 is functionally identical to BZW04-28BHE3/54 in electrical parameters (VWM = 28.2 V, VBR = 31.4–36.3 V, VC = 45.7 V) and mechanical form (DO-204AL), differing only in the "P" prefix indicating the "Plastic" variant with tighter VBR tolerance (±7.5% vs ±10% for non-P versions). Both share AEC-Q101 qualification and HE3 RoHS compliance. No PCB or schematic changes are required when substituting BZW04P28BHE3/54 for BZW04-28BHE3/54.
BZW04P28BHE3/54 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:
- -
- Bidirectional Channels:
- 1
- 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)
BZW04P28BHE3/54 FAQ
1.How can I place an order for BZW04P28BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P28BHE3/54 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 BZW04P28BHE3/54 reliable?
The price and inventory of BZW04P28BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P28BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P28BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P28BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P28BHE3/54?
BZW04P28BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P28BHE3/54 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 BZW04P28BHE3/54?
For technical support, including BZW04P28BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P28BHE3/54 requirements.
6.How does Aetrix verify that BZW04P28BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P28BHE3/54 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 BZW04P28BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P28BHE3/54?
All BZW04P28BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P28BHE3/54, 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 BZW04P28BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P28BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P28BHE3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
