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Vishay General Semiconductor - Diodes Division BZW04P48-E3/54
- Part No.:
- BZW04P48-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P48-E3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,507
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Product details
Overview
BZW04P48-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 47.8 V stand-off voltage (VWM), 77.0 V maximum clamping voltage (VC) at 5.2 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for safeguarding MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD events.
For engineers reviewing the BZW04P48-E3/54 datasheet, BZW04P48-E3/54 pinout, BZW04P48-E3/54 application, or BZW04P48-E3/54 equivalent, key selection criteria include its DO-41 package compatibility, bi-directional clamping symmetry, AEC-Q101 qualification for automotive-grade reliability, and verified performance under repetitive 0.01% duty cycle surge conditions.
Technical Context
This bi-directional TVS diode employs a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of fast-rising transients such as ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4). Its symmetrical breakdown behavior ensures identical clamping in both polarities, eliminating polarity-sensitive layout constraints.
The device operates across –55 °C to +175 °C junction temperature range and maintains stable VBR (53.2–61.6 V) with ±0.103 %/°C temperature coefficient. It is rated for 1.5 W steady-state power dissipation on infinite heatsink at TL = 75 °C and supports soldering per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR min/max | 53.2 V / 61.6 V at 1 mA - Verified breakdown threshold range ensuring consistent turn-on across production lots. |
| VC @ IPPM | 77.0 V at 5.2 A (10/1000 µs) - Clamping voltage limits downstream component stress during surge events. |
| PPPM | 400 W - Peak pulse power handling capability under standardized surge waveform; enables single-device protection for moderate-energy transients. |
| IPPM | 5.2 A - Peak pulse current derived from 400 W / 77.0 V; used to size PCB trace width and verify system-level energy absorption. |
| TJ max | +175 °C - Maximum junction temperature supporting operation in under-hood automotive and industrial environments. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with 0.205" body diameter; compatible with legacy wave-solder and manual assembly. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, epoxy-molded case with matte tin-plated leads. No polarity marking - bi-directional operation confirmed by symmetric electrical characteristics in both directions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional transient conduction path | No functional distinction between leads; either terminal serves as input/output for bidirectional clamping - simplifies PCB routing and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable leakage performance and long-term reliability under thermal cycling and humidity exposure. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and infotainment power rails. |
| 400 W peak pulse power (10/1000 µs) | Supports protection of 12 V and 24 V systems against ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surges up to 1 kV/2 Ω. |
| UL 94 V-0 compliant molding compound | Meets flammability safety requirements for enclosed industrial and consumer enclosures. |
| JESD201 Class 1A whisker resistance | E3 suffix confirms mitigation of tin whisker growth - critical for long-life, high-reliability deployments. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and alternator ripple in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between power rail and ground, absorbing transients before they reach sensitive analog front-ends. Use Value: Prevents latch-up and gate oxide damage in 3.3 V/5 V logic devices while maintaining signal integrity due to sub-nanosecond response. |
Use Scenario: Shielding 4–20 mA current loop sensors and RS-485 nodes from field-induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-mode protector on differential data lines and supply inputs, activated only during overvoltage events above 47.8 V. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) without adding series impedance or signal distortion. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side controllers and rectifier bridges against lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Secondary-stage TVS placed after MOV but before bridge rectifier, limiting let-through voltage to <77 V. Use Value: Reduces need for oversized capacitors and improves surge margin beyond EN 61000-4-5 requirements. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, wireless APs) from induced transients on 48 V DC feed lines. IC Role / Device Role / Timing Role: Bidirectional clamp on each DC pair, referenced to local ground, suppressing common-mode and differential-mode spikes. Use Value: Maintains uninterrupted operation during repeated 10/1000 µs surges up to 400 W without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48CA | DO-214AA (SMB) package; 48 V VWM, 77.4 V VC @ 5.15 A; same PPPM (400 W) but surface-mount format. | Requires rework of PCB layout for SMT assembly; better thermal performance in high-density designs. | Select when board space is constrained and automated assembly is preferred over through-hole. |
| 1.5KE48CA | DO-201AD package; 48 V VWM, 77 V VC @ 5.2 A; 1500 W PPPM (higher energy capacity), larger footprint. | Higher surge margin for infrequent but severe events (e.g., utility grid switching); less suited for compact consumer modules. | Choose for industrial power supplies needing >10× energy absorption per event, accepting larger size and higher cost. |
Compared with SMBJ48CA and 1.5KE48CA, BZW04P48-E3/54 offers optimal balance of proven automotive reliability (AEC-Q101), DO-41 through-hole manufacturability, and precise 47.8 V standoff for 12 V–48 V system coordination - making it ideal for cost-sensitive, high-volume automotive and industrial replacements where legacy board compatibility is essential.
Availability
BZW04P48-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom DC power feed applications requiring stable component supply and long-term lifecycle support.
Supply support for BZW04P48-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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for robust, bi-directional transient suppression in harsh environments - emphasizing AEC-Q101 qualification, tight parameter tolerances, and repeatable clamping performance.
FAQ
What is the clamping voltage of BZW04P48-E3/54 under standard test conditions?
The BZW04P48-E3/54 has a maximum clamping voltage (VC) of 77.0 V at 5.2 A peak pulse current with a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is BZW04P48-E3/54 suitable for automotive applications?
Yes, BZW04P48-E3/54 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C. Its glass-passivated junction, DO-41 mechanical robustness, and verified surge performance make it appropriate for engine control modules, body control units, and infotainment power rails where reliability under thermal and vibration stress is mandatory.
Does BZW04P48-E3/54 have polarity markings on the package?
No, BZW04P48-E3/54 is a bi-directional TVS diode and carries no polarity marking. The DO-41 package is unmarked because both terminals function identically - current flows symmetrically in either direction once the breakdown voltage is exceeded. This eliminates orientation errors during manual or automated placement.
What is the standoff voltage (VWM) of BZW04P48-E3/54, and why does it matter?
The standoff voltage (VWM) of BZW04P48-E3/54 is 47.8 V - the maximum continuous DC or RMS voltage the device can block without entering avalanche conduction. This parameter ensures reliable operation in 48 V nominal systems (e.g., telecom power feeds) while providing sufficient margin below the 53.2 V minimum breakdown voltage to prevent false triggering.
How does the E3/54 suffix affect BZW04P48-E3/54's specifications and packaging?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with JESD201 Class 1A whisker resistance; "54" denotes the preferred package code - 13-inch paper tape and reel with 550 units per reel. These identifiers do not alter electrical specs but confirm compliance status, plating quality, and logistics configuration for BZW04P48-E3/54.
BZW04P48-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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
BZW04P48-E3/54 FAQ
1.How can I place an order for BZW04P48-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P48-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 BZW04P48-E3/54 reliable?
The price and inventory of BZW04P48-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 BZW04P48-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P48-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P48-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P48-E3/54?
BZW04P48-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P48-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 BZW04P48-E3/54?
For technical support, including BZW04P48-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P48-E3/54 requirements.
6.How does Aetrix verify that BZW04P48-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P48-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 BZW04P48-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P48-E3/54?
All BZW04P48-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P48-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 BZW04P48-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P48-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P48-E3/54 Tags
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