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Vishay General Semiconductor - Diodes Division BZW04P48-E3/73
- Part No.:
- BZW04P48-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P48-E3/73.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,417
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Product details
Overview
BZW04P48-E3/73 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 capability with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection circuits.
For engineers reviewing the BZW04P48-E3/73 datasheet, BZW04P48-E3/73 pinout, BZW04P48-E3/73 application, or BZW04P48-E3/73 equivalent, key selection criteria include its DO-41 package compatibility, AEC-Q101 qualification, bi-directional surge handling up to ±77.0 V, and low 1.0 µA reverse leakage at VWM, critical for low-power and high-reliability systems.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with breakdown voltage (VBR) specified between 53.2 V and 61.6 V at 1 mA test current. Its glass-passivated junction ensures stable performance under repetitive transients, and it complies with ANSI/IEEE C62.35 surge standards for 10/1000 µs waveforms.
Thermal derating begins above 25 °C ambient, with full 400 W rating only at TA = 25 °C; maximum junction temperature is 175 °C. The device exhibits a temperature coefficient of VBR of +0.103 %/°C, indicating predictable voltage drift across operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V - Maximum continuous reverse working voltage before clamping activates; defines safe operating margin below breakdown. |
| VC @ IPPM | 77.0 V - Clamped voltage during 5.2 A 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| IPPM | 5.2 A - Peak pulse current survivable per 10/1000 µs waveform; sets minimum surge energy handling (400 W). |
| VBR min/max | 53.2 V / 61.6 V - Breakdown voltage range at 1 mA; ensures consistent triggering across production units. |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage; critical for low-power sensor biasing and battery-backed systems. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package; compatible with legacy PCB layouts and automated insertion. |
Pinout & Package
DO-204AL (DO-41) molded epoxy package with matte tin-plated leads; no polarity marking for bi-directional configuration - terminals are functionally identical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | No cathode band; either lead serves as input/output terminal - simplifies layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without external series impedance. |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term reliability and stable VBR under thermal cycling and humidity stress (JESD22-A101/A110). |
| RoHS-compliant, JESD201 Class 1A whisker tested | Meets automotive solderability and tin whisker mitigation requirements for high-reliability assembly. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation essential for industrial and transportation safety certifications. |
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 ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transients before reaching sensitive ICs. Use Value: Limits voltage excursion to ≤77.0 V during 5.2 A surge, preserving signal integrity and preventing latch-up in 5 V/12 V interface ICs. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed across input terminals to absorb repetitive 400 W surges without degradation. Use Value: Maintains <1.0 µA leakage at 47.8 V, ensuring accurate logic-level detection while surviving >10,000 surge cycles per IEC 61000-4-4. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in networked building automation devices from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary front-end transient suppressor in multi-stage protection scheme, preceding GDT or MOV. Use Value: Fast response (<1 ns) and low dynamic impedance ensure clamping occurs before downstream IC damage thresholds are exceeded. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine motor inverters from back-EMF spikes during brushless DC motor commutation. IC Role / Device Role / Timing Role: Localized clamp across MCU input pins and half-bridge driver supply rails to suppress sub-100 ns ringing. Use Value: Withstands 175 °C junction temperature and maintains VBR stability across thermal cycles, enabling direct placement near heat-generating MOSFETs. |
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 | Same VWM (48 V) and VC (77.4 V), but SMC package (surface-mount); 600 W rating vs. 400 W. | Requires PCB rework for SMT layout; better suited for space-constrained designs with higher surge margin needs. | Select SMBJ48CA when board real estate is limited and 600 W peak power is required; not drop-in for through-hole DO-41 footprints. |
| P6KE48CA | Same DO-41 package and bi-directionality, but lower 600 W rating and higher VC (75.5 V); larger junction capacitance (~200 pF vs. ~100 pF). | Acceptable for lower-speed analog/sensor lines; less suitable for high-frequency data lines due to higher capacitance. | Choose P6KE48CA for cost-sensitive industrial applications where 600 W margin is needed and signal bandwidth is <1 MHz. |
Compared with SMBJ48CA and P6KE48CA, BZW04P48-E3/73 offers AEC-Q101 qualification and tighter VBR tolerance (±7.5 % vs. ±10 %), making it preferred for automotive-grade designs requiring validated reliability and precise clamping onset.
Availability
BZW04P48-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and DO-41 through-hole manufacturability.
Supply support for BZW04P48-E3/73 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, and protection devices with emphasis on reliability, automotive qualification, and industrial robustness.
The BZW04P48-E3/73 belongs to the TransZorb® family of TVS diodes engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and infrastructure applications demanding AEC-Q101 validation and UL 94 V-0 safety compliance.
FAQ
What is the clamping voltage of BZW04P48-E3/73 under a standard 10/1000 µs surge?
The BZW04P48-E3/73 clamps to a maximum of 77.0 V when subjected to its rated 5.2 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed across production lots and forms the basis for system-level surge protection design - ensuring downstream ICs see no more than 77.0 V during transient events. The BZW04P48-E3/73 achieves this with low dynamic impedance and fast response time.
Is BZW04P48-E3/73 suitable for automotive applications?
Yes, BZW04P48-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its DO-41 package, 175 °C maximum junction temperature, and glass-passivated junction meet stringent automotive reliability requirements. The BZW04P48-E3/73 also complies with JESD201 Class 1A whisker testing and RoHS directives, confirming suitability for automotive manufacturing.
How does the bi-directional configuration of BZW04P48-E3/73 affect its PCB layout?
The BZW04P48-E3/73 has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout, reduces assembly errors, and allows flexible routing in AC-coupled or differential signal paths. Unlike uni-directional TVS diodes, the BZW04P48-E3/73 requires no attention to cathode band alignment - a key advantage in high-mix manufacturing environments where the BZW04P48-E3/73 is used.
What is the maximum reverse leakage current of BZW04P48-E3/73 at its stand-off voltage?
At its 47.8 V stand-off voltage (VWM), the BZW04P48-E3/73 exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and extends battery life in always-on monitoring systems. The BZW04P48-E3/73 maintains this specification across its full operating temperature range, supporting reliable performance in ambient conditions from –55 °C to +125 °C.
Can BZW04P48-E3/73 replace P6KE48CA in an existing design?
BZW04P48-E3/73 shares the same DO-41 package and bi-directional functionality as P6KE48CA but differs in VBR range (53.2–61.6 V vs. 50.4–55.8 V), clamping voltage (77.0 V vs. 75.5 V), and AEC-Q101 qualification (present in BZW04P48-E3/73, absent in P6KE48CA). While mechanically interchangeable, the BZW04P48-E3/73 offers tighter tolerances and automotive validation - making it a functional upgrade, not a blind drop-in replacement for P6KE48CA.
BZW04P48-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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-E3/73 FAQ
1.How can I place an order for BZW04P48-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P48-E3/73 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-E3/73 reliable?
The price and inventory of BZW04P48-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P48-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P48-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P48-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P48-E3/73?
BZW04P48-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P48-E3/73 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-E3/73?
For technical support, including BZW04P48-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P48-E3/73 requirements.
6.How does Aetrix verify that BZW04P48-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P48-E3/73 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-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P48-E3/73?
All BZW04P48-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P48-E3/73, 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-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P48-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P48-E3/73 Tags
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