Vishay General Semiconductor - Diodes Division BZW04P10-E3/73
- Part No.:
- BZW04P10-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P10-E3/73.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO204AL
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BZW04P10-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 10.2 V stand-off voltage (VWM), 16.7 V maximum clamping voltage (VC) at 24.0 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability with 10/1000 μs waveform - ideal for safeguarding MOSFETs and sensor interfaces against inductive switching transients in industrial control systems.
For engineers reviewing the BZW04P10-E3/73 datasheet, BZW04P10-E3/73 pinout, BZW04P10-E3/73 application, or BZW04P10-E3/73 equivalent, key selection considerations include its DO-204AL (DO-41) axial package, bi-directional polarity, AEC-Q101 qualification (via HE3 suffix variants), 175 °C max junction temperature, and low 0.078 %/°C voltage temperature coefficient - critical for stable clamping across automotive and industrial thermal environments.
Technical Context
This bi-directional TVS diode operates symmetrically in both forward and reverse bias, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, while the 10/1000 μs waveform rating reflects real-world lightning and inductive load surge immunity per IEC 61000-4-5.
The device delivers fast response time (<1 ns) and excellent clamping ratio (VC/VWM = 1.64), minimizing let-through energy to downstream ICs. Its 1.5 W steady-state power dissipation (PD) and derating curve support reliable operation up to 175 °C junction temperature, validated under AEC-Q101 stress testing for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10.2 V - Maximum continuous working voltage before conduction; defines safe operating margin below clamping threshold. |
| VC (Clamping Voltage) | 16.7 V at IPPM = 24.0 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines residual stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capacity per 10/1000 μs waveform; enables compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV) tests. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | 175 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
| Temperature Coefficient | 0.078 %/°C - Predictable VBR drift with temperature; enables accurate clamping performance modeling across -55 °C to +175 °C range. |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. Bi-directional types have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient conduction path | No functional polarity - either lead serves as input/output; enables placement in AC or floating nodes without orientation concern. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable, repeatable breakdown voltage and long-term reliability under repeated surge stress. |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against common industrial and automotive transients including ISO 7637-2 pulse 1/2a/5a. |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive electronics use; includes HTOL, temperature cycling, and ESD testing per stress test plan. |
| Low clamping ratio (VC/VWM = 1.64) | Minimizes let-through voltage to sensitive downstream components such as microcontrollers and analog front-ends. |
| RoHS-compliant, matte tin leads | Enables lead-free reflow compatibility and eliminates whisker risk per JESD201 Class 1A (E3 suffix). |
Applications
| Industrial Motor Drive Protection | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: Protecting encoder feedback lines and Hall-effect sensor outputs from commutation-induced transients in BLDC motor drives. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential sensor inputs to shunt inductive kickback surges. Use Value: Prevents latch-up or damage to precision analog front-ends by limiting transient voltage to ≤16.7 V at 24 A surge current. |
Use Scenario: Safeguarding LIN bus transceivers and pressure/temperature sensor signal lines in engine control modules. IC Role / Device Role / Timing Role: Standoff-clamp TVS on bidirectional data lines to absorb ISO 16750-2 load dump and jump-start pulses. Use Value: Maintains signal integrity with <1.0 μA leakage at 10.2 V, while surviving AEC-Q101 environmental stress profiles. |
| Telecom Line Interface Protection | Consumer Appliance Control Board Protection |
Use Scenario: Shielding RS-485 transceiver I/O pins from ESD and lightning-induced surges in outdoor network equipment. IC Role / Device Role / Timing Role: Primary-level surge suppression on balanced differential pairs before secondary TVS or filtering stages. Use Value: Fast <1 ns response captures initial surge edge; 400 W rating handles multi-pulse events per Telcordia GR-1089-CORE. |
Use Scenario: Protecting microcontroller GPIOs and relay driver outputs from inductive kickback in washing machine control boards. IC Role / Device Role / Timing Role: Clamp placed across relay coil or triac gate drive lines to suppress 600 V/μs transients. Use Value: 175 °C TJ max enables mounting near heat-generating power stages 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 |
|---|---|---|---|
| SMBJ10CA | DO-214AA (SMB) package; 10 V VWM, 17 V VC at 24.4 A; same 400 W PPPM but higher capacitance (~150 pF vs. ~50 pF for BZW04P10-E3/73). | Preferred for PCB space-constrained designs; less suitable for high-frequency signal lines due to higher junction capacitance. | Select SMBJ10CA when board area is limited and signal bandwidth <10 MHz; verify layout clearance for SMB footprint. |
| P6KE10CA | DO-15 package; 10 V VWM, 17.1 V VC at 23.4 A; 600 W PPPM rating but larger size and lower surge current density. | Better suited for high-energy single-event surges; not AEC-Q101 qualified and lacks RoHS-compliant lead finish assurance. | Choose P6KE10CA only for legacy industrial systems requiring higher single-pulse margin and where automotive qualification is unnecessary. |
Compared with SMBJ10CA and P6KE10CA, BZW04P10-E3/73 offers superior thermal performance in axial through-hole mounting, AEC-Q101 qualification via HE3 variants, and lower junction capacitance - making it optimal for cost-sensitive, thermally demanding, or automotive-qualified designs where DO-41 mechanical robustness is advantageous.
Availability
BZW04P10-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, telecom line protection, and consumer appliance control boards requiring stable component supply with full traceability and long-lifecycle support.
Supply support for BZW04P10-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, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - balancing clamping performance, thermal robustness, and qualification compliance.
FAQ
What is the maximum clamping voltage of the BZW04P10-E3/73 under surge conditions?
The BZW04P10-E3/73 has a maximum clamping voltage (VC) of 16.7 V when subjected to its rated peak pulse current of 24.0 A with a 10/1000 μs waveform. This value is guaranteed per Vishay Document Number 88316 and defines the upper voltage limit imposed on protected circuitry during transient events - a critical parameter for ensuring downstream IC survival.
Is the BZW04P10-E3/73 suitable for automotive applications?
Yes - while the BZW04P10-E3/73 itself carries the commercial-grade E3 suffix, the functionally identical BZW04P10HE3/73 variant is AEC-Q101 qualified. Both share identical electrical specs and DO-204AL packaging; the HE3 version adds automotive stress validation including temperature cycling, HTOL, and ESD testing per AEC-Q101 Rev D.
What package type does the BZW04P10-E3/73 use, and what are its key mechanical features?
The BZW04P10-E3/73 uses the DO-204AL (DO-41) axial package: 2.0–2.7 mm lead diameter, 4.1–5.2 mm body diameter, and minimum 25.4 mm overall length. It features UL 94 V-0 rated epoxy molding, matte tin-plated leads compliant with J-STD-002, and JESD201 Class 1A whisker resistance - all confirmed in Vishay's 88316 datasheet revision 12-Jul-11.
How does the bi-directional configuration of the BZW04P10-E3/73 affect its circuit implementation?
The BZW04P10-E3/73 is inherently bi-directional, meaning it conducts identically in both polarities - no cathode marking is present, and either lead may connect to either side of a protected node. This simplifies layout for AC-coupled, differential, or floating signal paths (e.g., RS-485, LIN, encoder lines), eliminating orientation errors and enabling symmetric transient suppression without additional components.
What is the temperature coefficient of breakdown voltage for the BZW04P10-E3/73, and why does it matter?
The BZW04P10-E3/73 has a maximum temperature coefficient of breakdown voltage (VBR) of 0.078 %/°C. This quantifies how much VBR shifts per degree Celsius change in junction temperature - essential for predicting clamping behavior across operating ranges from -55 °C to +175 °C. A low coefficient ensures consistent protection margins in thermally dynamic environments like engine bays or industrial enclosures.
BZW04P10-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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 24A
- 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)
BZW04P10-E3/73 FAQ
1.How can I place an order for BZW04P10-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P10-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 BZW04P10-E3/73 reliable?
The price and inventory of BZW04P10-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 BZW04P10-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P10-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P10-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P10-E3/73?
BZW04P10-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P10-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 BZW04P10-E3/73?
For technical support, including BZW04P10-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P10-E3/73 requirements.
6.How does Aetrix verify that BZW04P10-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P10-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 BZW04P10-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P10-E3/73?
All BZW04P10-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P10-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 BZW04P10-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P10-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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