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Vishay General Semiconductor - Diodes Division BZW04P64B-E3/73
- Part No.:
- BZW04P64B-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P64B-E3/73.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,362
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Product details
Overview
BZW04P64B-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 64.1 V stand-off voltage (VWM), 103 V clamping voltage (VC) at 3.9 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 modules, and telecom line protection.
For engineers reviewing the BZW04P64B-E3/73 datasheet, BZW04P64B-E3/73 pinout, BZW04P64B-E3/73 application, or BZW04P64B-E3/73 equivalent, key selection criteria include its DO-41 package compatibility, AEC-Q101 qualification, bi-directional surge handling up to ±3.9 A, and low 0.105 %/°C temperature coefficient of breakdown voltage - critical for stable clamping across automotive temperature ranges.
Technical Context
This bi-directional TVS diode uses a glass passivated chip junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its symmetrical breakdown behavior (VBR min/max = 71.3 V / 82.5 V at 1 mA) ensures identical clamping performance in both polarities.
The device operates across –55 °C to +175 °C junction temperature range and is rated for 1.5 W steady-state power dissipation on infinite heatsink at TL = 75 °C. It meets JESD22-B106 soldering requirements (275 °C, 10 s) and is RoHS-compliant with matte tin-plated leads per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64.1 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (min/max) | 71.3 V / 82.5 V at 1 mA - guaranteed breakdown onset range; ensures predictable turn-on under surge conditions. |
| VC @ IPPM | 103 V at 3.9 A (10/1000 μs) - peak clamped voltage seen by protected circuit; limits stress on downstream ICs like microcontrollers or RS-485 transceivers. |
| PPPM | 400 W - peak pulse power handling capability; supports repetitive surge events at 0.01 % duty cycle without degradation. |
| ID @ VWM | 1.0 μA - ultra-low reverse leakage at stand-off voltage; minimizes standby power loss in battery-powered systems. |
| TJ max. | +175 °C - high-temperature junction rating enables use in under-hood automotive environments and industrial enclosures. |
| Temp. Coeff. | 0.105 %/°C - tightly controlled VBR drift with temperature; maintains clamping accuracy across wide thermal excursions. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads, solderable per J-STD-002. Bi-directional construction - no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | No functional distinction between leads; either terminal serves as input/output for transient energy diversion in both directions. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable breakdown characteristics and long-term reliability under repeated surge stress. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| 400 W peak pulse power (10/1000 μs) | Handles high-energy transients common in 12 V/24 V vehicle power nets and industrial fieldbus wiring. |
| Low clamping ratio (VC/VBR ≈ 1.28) | Minimizes overvoltage overshoot during clamping - critical for protecting 65 V-rated CAN FD or LIN transceivers. |
| RoHS-compliant, JESD201 Class 1A whisker tested | Ensures lead finish integrity in high-reliability assemblies and eliminates tin whisker risk in long-life applications. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across sensor supply and ground pins to shunt transients before they reach ASIC front-end. Use Value: Limits transient voltage to ≤103 V, preserving sensor signal integrity and preventing latch-up in 5 V or 3.3 V interface ICs. |
Use Scenario: Safeguarding differential data lines in factory automation PLCs connected to noisy motor drives and solenoid valves. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground TVS pair on RS-485 bus (A/B) to absorb EFT bursts and inductive kickback. Use Value: Clamps ±3.9 A surges within nanoseconds, maintaining signal eye diagram integrity and avoiding communication errors. |
| Telecom DSL Line Protection | Consumer Appliance Power Input |
Use Scenario: Secondary protection stage on POTS/DSL line cards subjected to lightning-induced surges per ITU-T K.20/K.44. IC Role / Device Role / Timing Role: Fast-acting bi-directional clamp between tip/ring conductors and chassis ground to divert common-mode transients. Use Value: Withstands 400 W pulses while holding clamped voltage below 103 V - compatible with upstream GDT primary protectors. |
Use Scenario: Overvoltage suppression on AC mains input of smart home hubs and white goods after bridge rectification. IC Role / Device Role / Timing Role: DC-side TVS across bulk capacitor terminals to absorb switching transients from relay/SCR control circuits. Use Value: 175 °C max junction temperature allows placement near heat-generating components without derating concerns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | DO-214AA (SMB) package; same 64 V VWM, but lower 600 W PPPM and higher 104 V VC at 6.5 A. | Better suited for PCB space-constrained designs; higher peak current capacity but larger clamping voltage swing. | Select SMBJ64CA when board area is limited and higher surge repetition rate is required. |
| 1.5KE68CA | DO-201AD package; 68 V VWM, 118 V VC at 3.4 A, 1500 W PPPM - significantly higher power but looser voltage tolerance. | Used where higher single-event energy absorption is needed (e.g., AC mains entry), but less precise clamping. | Choose 1.5KE68CA only for non-critical, high-energy surge zones where 68 V stand-off and 118 V clamping are acceptable. |
Compared with SMBJ64CA and 1.5KE68CA, BZW04P64B-E3/73 offers tighter VBR tolerance (±7.5 % vs ±10 %), lower temperature coefficient (0.105 %/°C vs 0.11 %/°C), and AEC-Q101 qualification - making it the preferred choice for automotive and high-stability industrial signal line protection.
Availability
BZW04P64B-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and telecom DSL line protection requiring stable component supply, AEC-Q101 compliance, and consistent bi-directional clamping performance.
Supply support for BZW04P64B-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The BZW04P64B-E3/73 belongs to the TransZorb® family of TVS diodes engineered specifically for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 qualification and stable parametric performance.
FAQ
What is the clamping voltage of BZW04P64B-E3/73 under standard test conditions?
The BZW04P64B-E3/73 has a maximum clamping voltage (VC) of 103 V when subjected to a 10/1000 μs waveform peak pulse current of 3.9 A. This value is measured at TA = 25 °C and represents the upper limit of voltage imposed on the protected circuit during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is BZW04P64B-E3/73 suitable for automotive applications?
Yes, BZW04P64B-E3/73 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C, making it suitable for under-hood and cabin-mounted automotive electronics. Its bi-directional architecture, low leakage (1.0 μA), and stable temperature coefficient (0.105 %/°C) support reliable transient suppression in CAN, LIN, and sensor signal paths per ISO 16750-2 requirements.
What does the "B" suffix in BZW04P64B-E3/73 indicate?
The "B" suffix in BZW04P64B-E3/73 denotes bi-directional functionality - meaning the device provides symmetrical transient suppression in both forward and reverse polarities. Unlike uni-directional variants (e.g., BZW04P64-E3/73), it has no cathode marking and is used where AC-coupled or floating signal lines require equal protection against positive and negative surges.
What package type is used for BZW04P64B-E3/73?
BZW04P64B-E3/73 uses the DO-204AL (commonly known as DO-41) axial-leaded package. Dimensions conform to standard JEDEC outlines: body diameter 2.0–2.7 mm, lead diameter 0.58–0.66 mm, overall length ≥25.4 mm. The molded epoxy case meets UL 94 V-0 flammability rating and supports wave or hand soldering per JESD22-B106.
How does the temperature coefficient affect BZW04P64B-E3/73 performance?
The BZW04P64B-E3/73 has a maximum temperature coefficient of breakdown voltage of 0.105 %/°C. This means VBR increases by up to 0.105 % per degree Celsius rise in junction temperature - resulting in ~7.5 V shift over a 70 °C range (25 °C to 95 °C). Designers must account for this drift when setting safety margins in high-temperature applications such as engine control modules.
BZW04P64B-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 3.9A
- 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)
BZW04P64B-E3/73 FAQ
1.How can I place an order for BZW04P64B-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P64B-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 BZW04P64B-E3/73 reliable?
The price and inventory of BZW04P64B-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 BZW04P64B-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P64B-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P64B-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P64B-E3/73?
BZW04P64B-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P64B-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 BZW04P64B-E3/73?
For technical support, including BZW04P64B-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P64B-E3/73 requirements.
6.How does Aetrix verify that BZW04P64B-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P64B-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 BZW04P64B-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P64B-E3/73?
All BZW04P64B-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P64B-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 BZW04P64B-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P64B-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P64B-E3/73 Tags
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