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Vishay General Semiconductor - Diodes Division BZW04-48-E3/54
- Part No.:
- BZW04-48-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-48-E3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,651
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Product details
Overview
BZW04-48-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 and power lines. It features a 47.8 V standoff voltage (VWM), 53.2–58.8 V breakdown voltage (VBR) at 1 mA, 77.0 V maximum clamping voltage (VC) at 5.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the BZW04-48-E3/54 datasheet, BZW04-48-E3/54 pinout, BZW04-48-E3/54 application, or BZW04-48-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility, AEC-Q101 qualification status, junction temperature range (−55 °C to +175 °C), and low leakage (<1 μA at VWM).
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism, with symmetrical bidirectional conduction enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance and low incremental surge resistance.
It delivers 400 W peak pulse power handling under standardized 10/1000 μs waveform conditions at TA = 25 °C, derated linearly above 25 °C per Fig. 2, and supports repetitive surge events at ≤0.01 % duty cycle. The 0.103 %/°C VBR temperature coefficient confirms predictable voltage drift across operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 53.2 V / 58.8 V at IT = 1 mA - defines guaranteed breakdown threshold window for design margining |
| VC @ IPPM | 77.0 V at 5.2 A - clamping voltage during worst-case transient, limiting downstream IC stress |
| PPPM | 400 W - peak transient energy absorption capacity with 10/1000 μs waveform |
| ID @ VWM | <1 μA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +175 °C - enables operation in under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; matte tin-plated terminals compliant with J-STD-002 and JESD22-B102 solderability standards. No polarity marking - bidirectional symmetry confirmed by datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical electrical behavior in both directions; no cathode band marking required |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter shift |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) in compact DO-41 form factor |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation systems |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
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 spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt transients before reaching signal conditioning circuitry. Use Value: Limits voltage seen by downstream ASICs to ≤77.0 V during 5.2 A surges, preserving signal chain integrity without adding propagation delay. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from solenoid coils and motor contactors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance for energy dissipation. Use Value: Withstands repetitive 400 W pulses at 0.01 % duty cycle, enabling reliable operation in factory automation environments with frequent switching events. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers exposed to lightning-induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: First-stage TVS in multi-stage protection network, absorbing bulk energy before secondary MOV or GDT stages. Use Value: 77.0 V clamping voltage aligns with 100BASE-TX common-mode tolerance, preventing latch-up in PHY transceivers. |
Use Scenario: Secondary-side transient suppression on 5–24 V DC output rails of wall adapters and USB PD chargers. IC Role / Device Role / Timing Role: Fast-response clamp between VOUT and GND to suppress ESD and capacitive coupling transients from connected devices. Use Value: Sub-1 μA leakage at 47.8 V avoids quiescent current drain in battery-backed or energy-harvesting peripherals. |
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 package (SMB), 48 V VWM, 70 V VC @ 5.7 A, same 400 W PPPM rating | Surface-mount alternative requiring PCB rework; higher thermal resistance than DO-41 in free-air | Select when board space constraints prohibit axial-leaded components or automated SMT assembly is preferred |
| P6KE48CA | DO-15 package, 48 V VWM, 77 V VC @ 5.2 A, 600 W PPPM (10/1000 μs), higher surge rating | Larger footprint and higher peak power; not AEC-Q101 qualified | Choose for non-automotive industrial applications needing higher single-pulse robustness without qualification requirements |
Compared with SMBJ48CA and P6KE48CA, the BZW04-48-E3/54 offers AEC-Q101 qualification and DO-41 through-hole mechanical stability ideal for high-vibration environments, while maintaining identical clamping performance at 77.0 V - making it optimal for automotive and ruggedized industrial designs where qualification and mounting reliability are critical.
Availability
BZW04-48-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter ESD protection requiring stable component supply and long-term lifecycle support.
Supply support for BZW04-48-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 BZW04 series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in automotive, industrial, and telecommunications infrastructure where AEC-Q101 compliance and precise clamping are mandatory.
FAQ
What is the polarity configuration of BZW04-48-E3/54?
The BZW04-48-E3/54 is a bidirectional TVS diode with symmetrical conduction characteristics in both forward and reverse directions. It has no cathode marking or polarity band, confirming its bidirectional functionality as specified in the Vishay datasheet Document Number 88316. This allows it to suppress both positive and negative transients without orientation concerns during placement. The B suffix in related part numbers (e.g., BZW04-48B) explicitly denotes bidirectionality, and BZW04-48-E3/54 follows that convention.
Is BZW04-48-E3/54 qualified for automotive applications?
Yes, BZW04-48-E3/54 is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 16-Sep-2021 (Document Number 88316), footnote (1) under Ratings and Characteristics Curves. This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and surge endurance - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and sensor interfaces.
What is the maximum clamping voltage of BZW04-48-E3/54 under surge conditions?
The maximum clamping voltage (VC) of BZW04-48-E3/54 is 77.0 V at a peak pulse current (IPPM) of 5.2 A, measured with a 10/1000 μs waveform at TA = 25 °C. This value is specified in the Electrical Characteristics table on page 2 of the Vishay datasheet and represents the upper limit of voltage imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does BZW04-48-E3/54 meet RoHS and lead-free requirements?
Yes, the "E3" suffix in BZW04-48-E3/54 indicates full RoHS compliance per EU Directive 2011/65/EU and exemption 6(c). The device uses matte tin-plated leads and meets JESD 201 Class 1A whisker resistance. This is documented in the Mechanical Data section of the Vishay datasheet, which states "Base P/N-E3 – RoHS-compliant, commercial grade" and confirms UL 94 V-0 flammability compliance for the epoxy molding compound.
What is the junction temperature range for BZW04-48-E3/54?
The BZW04-48-E3/54 has an operating junction and storage temperature range of −55 °C to +175 °C, as specified in the Maximum Ratings and Thermal Characteristics table (page 1) of the Vishay datasheet. This wide range supports deployment in extreme environments such as automotive engine compartments, industrial motor drives, and outdoor telecom equipment - with derating applied above TA = 25 °C per Figure 2 in the same document.
BZW04-48-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):
- 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)
BZW04-48-E3/54 FAQ
1.How can I place an order for BZW04-48-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-48-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 BZW04-48-E3/54 reliable?
The price and inventory of BZW04-48-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 BZW04-48-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-48-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-48-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-48-E3/54?
BZW04-48-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-48-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 BZW04-48-E3/54?
For technical support, including BZW04-48-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-48-E3/54 requirements.
6.How does Aetrix verify that BZW04-48-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-48-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 BZW04-48-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-48-E3/54?
All BZW04-48-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-48-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 BZW04-48-E3/54 part is unused and in its original packaging.
Return procedure for BZW04-48-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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