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Vishay General Semiconductor - Diodes Division BZW04P20-E3/54
- Part No.:
- BZW04P20-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P20-E3/54.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,596
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Product details
Overview
BZW04P20-E3/54 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 20.5 V stand-off voltage (VWM), 33.2 V clamping voltage (VC) at 12.0 A peak pulse current, and 400 W peak pulse power capability with a 10/1000 µs waveform - ideal for safeguarding MOSFETs, ICs, and sensor interfaces against ESD and inductive switching transients.
For engineers reviewing the BZW04P20-E3/54 datasheet, BZW04P20-E3/54 pinout, BZW04P20-E3/54 application, or BZW04P20-E3/54 equivalent, key selection considerations include its DO-41 package compatibility, bi-directional surge handling, AEC-Q101 qualification for automotive-grade reliability, and verified clamping performance under repetitive 0.01% duty cycle conditions.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with breakdown voltage (VBR) specified between 22.8 V and 26.4 V at 1 mA test current. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients, while the glass-passivated junction enables stable performance across -55 °C to +175 °C operating junction temperature.
The device complies with ANSI/IEEE C62.35 surge standards and delivers consistent clamping behavior under 10/1000 µs waveform stress. Its 1.5 W steady-state power dissipation and 400 W peak pulse rating support sustained protection in industrial control and automotive subsystems without thermal runaway under defined duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20.5 V - maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold |
| VC @ IPPM | 33.2 V at 12.0 A - clamped voltage during 10/1000 µs surge; limits downstream component stress to ≤33.2 V |
| PPPM | 400 W - peak pulse power handling per 10/1000 µs waveform; supports high-energy transient suppression |
| VBR min/max | 22.8 V / 26.4 V at 1 mA - guaranteed breakdown range; ensures predictable turn-on across production lot |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at stand-off voltage; preserves signal integrity in high-impedance circuits |
| TJ max | +175 °C - maximum junction temperature; enables operation in under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive electronic modules per stress test requirements including HTOL, TC, and HAST |
Pinout & Package
Package: DO-204AL (DO-41), axial lead, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards. No polarity marking - bi-directional functionality confirmed by "B" suffix in part numbering convention (e.g., BZW04P20B).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bi-directional surge path | Both terminals function identically; no cathode band - enables symmetrical placement in AC-coupled or floating lines |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of VBR and leakage performance across thermal cycling and humidity exposure |
| 400 W peak pulse power (10/1000 µs) | Withstands high-energy transients from relay coil collapse or lightning-induced surges without degradation |
| AEC-Q101 qualification | Validated for automotive applications including body control modules, infotainment power rails, and sensor supply lines |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes protected circuit overvoltage margin - critical for 24 V systems where headroom is constrained |
| RoHS-compliant, matte tin leads | Enables lead-free reflow assembly and meets global environmental compliance without sacrificing solder joint reliability |
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 voltage clamp placed directly at connector entry point to shunt transients before reaching interface ICs. Use Value: Maintains signal fidelity under ±25 kV ESD (IEC 61000-4-2) and 12 V/24 V load dump pulses while preserving <1 µA leakage at 20.5 V. |
Use Scenario: Safeguarding digital input/output channels on programmable logic controllers exposed to inductive kickback from solenoids and contactors. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor mounted across channel terminals to limit voltage excursion during 100 A/10 ms surges. Use Value: Clamps to 33.2 V within nanoseconds, preventing latch-up or gate oxide damage in 3.3 V/5 V logic-level interface components. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station equipment from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end TVS in multi-stage protection scheme, absorbing bulk energy before secondary MOV or GDT stages. Use Value: Delivers 400 W pulse handling with <1 ns response time, enabling compliance with ITU-T K.20 and Telcordia GR-1089-CORE. |
Use Scenario: Suppressing commutation spikes from universal motor brushes and BLDC inverter back-EMF in washing machines and HVAC fans. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor winding terminals or DC bus to clamp voltage reversals during PWM switching. Use Value: Withstands repetitive 0.01% duty cycle surges up to 12 A, extending MOSFET lifetime and reducing electromagnetic emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | DO-214AA (SMB) package; 20 V VWM, 32.4 V VC @ 12.3 A; same 400 W rating but higher surge current tolerance | Surface-mount layout; better suited for automated PCB assembly and space-constrained designs | Select SMBJ20CA when board real estate is limited and SMT process is available; verify thermal pad design for 1.5 W dissipation |
| P6KE20CA | DO-15 package; 20 V VWM, 34.6 V VC @ 11.6 A; lower peak pulse power (600 W) but larger footprint and higher VC | Through-hole replacement with higher mechanical robustness; used in legacy industrial power supplies | Choose P6KE20CA only if DO-15 mounting is required and clamping voltage margin allows 34.6 V excursion |
Compared with SMBJ20CA and P6KE20CA, BZW04P20-E3/54 offers identical VWM and superior clamping ratio (33.2 V vs. 32.4 V and 34.6 V), packaged in cost-effective DO-41 for through-hole prototyping and service replacement - making it optimal for automotive aftermarket, industrial field repair, and low-volume embedded designs requiring AEC-Q101 validation.
Availability
BZW04P20-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply with full traceability and lifecycle management.
Supply support for BZW04P20-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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The BZW04P series was engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment electronics, emphasizing stable clamping, low leakage, and robust thermal performance in axial-leaded packages.
FAQ
What is the polarity configuration of BZW04P20-E3/54?
BZW04P20-E3/54 is a bi-directional TVS diode with no polarity marking - both terminals are functionally identical. This enables symmetrical placement across AC-coupled lines, differential buses (e.g., RS-485), or floating sensor outputs without orientation concerns. The "B" in alternate part number BZW04P20B explicitly denotes bi-directionality per Vishay's naming convention.
Does BZW04P20-E3/54 meet automotive qualification standards?
Yes, BZW04P20-E3/54 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and highly accelerated stress testing (HAST). This certification validates its suitability for under-hood and cabin-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What is the maximum clamping voltage for BZW04P20-E3/54 under surge conditions?
The maximum clamping voltage (VC) for BZW04P20-E3/54 is 33.2 V when subjected to a 10/1000 µs waveform at 12.0 A peak pulse current (IPPM). This value is guaranteed across production lots and operating temperatures, ensuring downstream components remain within safe voltage limits during transient events.
Can BZW04P20-E3/54 be used in surface-mount designs?
No - BZW04P20-E3/54 uses a DO-204AL (DO-41) axial-leaded package and is not compatible with surface-mount assembly. For SMT alternatives, consider SMBJ20CA (DO-214AA) or SMCJ20CA (DO-214AB), which share similar electrical specs but require PCB land pattern redesign and reflow profile validation.
How does the temperature coefficient affect BZW04P20-E3/54's breakdown voltage?
BZW04P20-E3/54 has a maximum temperature coefficient of VBR of +0.094 %/°C, meaning its breakdown voltage increases by up to 0.094% per degree Celsius rise in junction temperature. At 125 °C, VBR may increase by ~9.4 V above its 25 °C value - a critical factor when designing for worst-case overvoltage margins in high-temperature environments.
BZW04P20-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
BZW04P20-E3/54 FAQ
1.How can I place an order for BZW04P20-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P20-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 BZW04P20-E3/54 reliable?
The price and inventory of BZW04P20-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 BZW04P20-E3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P20-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P20-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P20-E3/54?
BZW04P20-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P20-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 BZW04P20-E3/54?
For technical support, including BZW04P20-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P20-E3/54 requirements.
6.How does Aetrix verify that BZW04P20-E3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P20-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 BZW04P20-E3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P20-E3/54?
All BZW04P20-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P20-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 BZW04P20-E3/54 part is unused and in its original packaging.
Return procedure for BZW04P20-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZW04P20-E3/54 Tags
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