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Vishay General Semiconductor - Diodes Division BZW04P10B-E3/73
- Part No.:
- BZW04P10B-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P10B-E3/73.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,586
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Product details
Overview
BZW04P10B-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 clamping voltage (VC) at 24.0 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - ideal for safeguarding MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD events.
For engineers reviewing the BZW04P10B-E3/73 datasheet, BZW04P10B-E3/73 pinout, BZW04P10B-E3/73 application, or BZW04P10B-E3/73 equivalent, key selection criteria include its DO-204AL (DO-41) axial package, bi-directional symmetry, AEC-Q101 qualification, low 0.078 %/°C breakdown voltage temperature coefficient, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling single-device protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ns), while low incremental surge resistance minimizes clamping overshoot during high-dI/dt transients.
The device is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient per Vishay's Fig. 2 curve. It supports repetitive surge duty cycles up to 0.01 % (1 pulse per 10,000 ms) and withstands solder dip at 275 °C for 10 s per JESD22-B106 - confirming suitability for standard through-hole reflow and wave-solder processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10.2 V - maximum continuous working voltage before conduction; defines safe operating margin below clamping threshold. |
| VC @ IPPM | 16.7 V at 24.0 A - clamped voltage during 10/1000 μs surge; determines protected circuit's peak stress level. |
| PPPM | 400 W - peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges. |
| VBR min/max | 11.4 V / 13.2 V at 1.0 mA - breakdown voltage range; ensures reliable triggering across manufacturing lot and temperature. |
| ID @ VWM | 1.0 μA - reverse leakage at stand-off voltage; guarantees minimal quiescent power loss in battery-powered systems. |
| TJ max | 175 °C - maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
| Temp. Coeff. | 0.078 %/°C - voltage drift rate of VBR; allows accurate thermal design margining over -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 comply 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 surge conduction path | No functional distinction between leads; either terminal serves as cathode or anode depending on transient polarity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for engine control, body electronics, and ADAS sensors. |
| Glass passivated junction | Ensures stable leakage current and long-term parameter stability under humidity and bias stress - critical for 15+ year industrial deployments. |
| 400 W 10/1000 μs rating | Supports IEC 61000-4-5 line-to-line surge testing at 1 kV (2 Ω source impedance) without degradation - protects downstream DC-DC converters and microcontrollers. |
| Low clamping ratio (VC/VWM = 1.64) | Minimizes overvoltage exposure to protected ICs - e.g., keeps 3.3 V logic inputs below 5.5 V absolute maximum during transients. |
| RoHS-compliant, JESD201 Class 1A whisker tested | Meets automotive and medical regulatory requirements; eliminates tin whisker risk in high-reliability assemblies with >10-year field life. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under ±100 V/50 ms load dump events while adding <1 pF capacitance - avoids data corruption or false triggering. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage limiter on dry-contact or PNP/NPN input channels, coordinated with series current-limiting resistor. Use Value: Clamps 1 kV/0.5 J surges to <17 V within <1 ns, preventing latch-up or permanent damage to optocoupler input stages. |
| Consumer Power Adapter EMI Filtering | Telecom Line Interface Protection |
Use Scenario: Secondary-side transient suppression in AC-DC adapters and USB-C PD chargers exposed to conducted noise and accidental AC mains coupling. IC Role / Device Role / Timing Role: Final-stage protector on +5 V, +9 V, or +20 V output rails, placed after DC-DC post-regulator. Use Value: Absorbs 400 W surges without thermal runaway, preserving output regulation and avoiding brownout resets during lightning-induced grid disturbances. |
Use Scenario: Overvoltage hardening of Ethernet PHY interfaces, DSL line drivers, and PoE-powered equipment connected to outside plant wiring. IC Role / Device Role / Timing Role: Bi-directional clamp on differential pairs (e.g., MDI-X) to suppress common-mode surges per GR-1089-CORE. Use Value: Withstands repeated 6 kV ring wave surges while maintaining <0.5 dB insertion loss at 100 MHz - preserves signal integrity and link stability. |
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 | Same DO-214AA package; 10 V VWM, 17.0 V VC @ 24.4 A; lower 600 W PPPM rating but higher surge current capacity. | Better suited for PCB space-constrained designs where surface-mount is mandatory; slightly higher clamping voltage reduces margin for 3.3 V logic. | Select SMBJ10CA when board real estate is limited and SMT assembly is required; verify layout clearance for 17.0 V clamping headroom. |
| P6KE10CA | DO-15 package; identical 10 V VWM and 16.7 V VC, but lower 600 W PPPM and larger footprint; legacy through-hole alternative. | Compatible with existing DO-15 socketed or wave-soldered designs; not AEC-Q101 qualified - restricted to commercial/industrial use. | Choose P6KE10CA only for cost-sensitive, non-automotive retrofits where DO-15 footprint reuse is prioritized over qualification and surge margin. |
Compared with SMBJ10CA and P6KE10CA, BZW04P10B-E3/73 delivers AEC-Q101 assurance in a compact DO-41 axial form factor, tighter VBR tolerance (±10 % vs. ±12.5 %), and superior thermal robustness at elevated ambient - making it the preferred choice for new automotive and high-reliability industrial designs.
Availability
BZW04P10B-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter outputs, and telecom line interfaces requiring stable component supply, long-lifecycle support, and AEC-Q101 traceability.
Supply support for BZW04P10B-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, efficiency, and application-specific optimization.
The BZW04P series belongs to Vishay's TransZorb® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial automation, and infrastructure equipment where failure modes must be rigorously controlled.
FAQ
What is the maximum clamping voltage of BZW04P10B-E3/73 under a 10/1000 μs surge?
The BZW04P10B-E3/73 exhibits a maximum clamping voltage (VC) of 16.7 V when subjected to its rated peak pulse current of 24.0 A using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by protected circuitry during worst-case transient events.
Is BZW04P10B-E3/73 suitable for automotive applications?
Yes, BZW04P10B-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction, test validation, and thermal performance (TJ max = 175 °C) meet requirements for engine control units, body electronics, and ADAS sensor modules. The "HE3" suffix variant offers enhanced whisker resistance, but the E3/73 version remains fully compliant for standard automotive deployment.
How does the bi-directional nature of BZW04P10B-E3/73 affect its circuit placement?
Because BZW04P10B-E3/73 is bi-directional, it has no polarity marking and functions identically regardless of orientation in the circuit. This simplifies layout and assembly - especially in AC-coupled or floating signal paths like RS-485, CAN bus, or transformer-isolated interfaces - eliminating risk of reverse installation and enabling symmetric protection on differential lines.
What is the reverse leakage current of BZW04P10B-E3/73 at its stand-off voltage?
At its 10.2 V stand-off voltage (VWM) and 25 °C ambient temperature, BZW04P10B-E3/73 specifies a maximum reverse leakage current (ID) of 1.0 μA. This ultra-low leakage ensures negligible power drain in always-on systems such as battery-backed sensors or IoT edge nodes, supporting multi-year operational life without compromising protection integrity.
Can BZW04P10B-E3/73 replace uni-directional TVS diodes in existing designs?
BZW04P10B-E3/73 can replace uni-directional TVS diodes only if the circuit topology is inherently symmetrical or AC-coupled - for example, protecting differential pairs or isolated power rails. In DC-biased unidirectional paths (e.g., +12 V supply rail), a uni-directional device provides lower forward voltage drop during normal operation; substituting BZW04P10B-E3/73 would introduce unnecessary conduction risk during positive transients.
BZW04P10B-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):
- 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)
BZW04P10B-E3/73 FAQ
1.How can I place an order for BZW04P10B-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P10B-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 BZW04P10B-E3/73 reliable?
The price and inventory of BZW04P10B-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 BZW04P10B-E3/73 is usually 5 days.
3.What payment methods are accepted for BZW04P10B-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P10B-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P10B-E3/73?
BZW04P10B-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P10B-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 BZW04P10B-E3/73?
For technical support, including BZW04P10B-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P10B-E3/73 requirements.
6.How does Aetrix verify that BZW04P10B-E3/73 is sourced from the original manufacturer or authorized distributors?
All BZW04P10B-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 BZW04P10B-E3/73 meets industry standards.
7.What is the process for return or replacement of BZW04P10B-E3/73?
All BZW04P10B-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P10B-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 BZW04P10B-E3/73 part is unused and in its original packaging.
Return procedure for BZW04P10B-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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