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Vishay General Semiconductor - Diodes Division BZW04-171BHE3/54
- Part No.:
- BZW04-171BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-171BHE3/54.pdf
- Description:
- TVS DIODE 171VWM 274VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,701
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Product details
Overview
BZW04-171BHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 171 V standoff voltage (VWM), 190–210 V breakdown voltage (VBR) at 1 mA, 274 V maximum clamping voltage (VC) at 1.5 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the BZW04-171BHE3/54 datasheet, BZW04-171BHE3/54 pinout, BZW04-171BHE3/54 application, or BZW04-171BHE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical data, clamping performance under standardized surge conditions, and direct alternatives for circuit protection redesign.
Technical Context
This device operates bidirectionally with symmetrical breakdown characteristics in both polarities, enabling suppression of positive and negative transients without polarity dependency. Its glass-passivated junction ensures stable VBR temperature coefficient (0.108 %/°C) and low incremental surge resistance for consistent clamping across repeated surges.
The BZW04-171BHE3/54 is rated for 175 °C maximum junction temperature and supports 1.0 μA max reverse leakage at 171 V standoff, meeting requirements for high-reliability automotive and industrial environments where thermal stability and low standby loss are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 190 V / 210 V at 1 mA - defines guaranteed breakdown range for reliable transient detection |
| VC @ IPPM | 274 V at 1.5 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 400 W - peak pulse power handling capability per single 10/1000 μs transient event |
| ID @ VWM | 1.0 μA - ultra-low leakage current preserves signal integrity in high-impedance circuits |
| TJ max. | 175 °C - enables operation in under-hood automotive and industrial control cabinet environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test standard |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping requires no orientation during PCB placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term parameter stability and resistance to humidity-induced degradation |
| 400 W peak pulse power (10/1000 μs) | Handles repetitive inductive load switching surges in motor drives and solenoid controls |
| AEC-Q101 qualification | Validates suitability for automotive body electronics, ADAS sensor interfaces, and infotainment power rails |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial equipment enclosures |
| Low 0.108 %/°C VBR tempco | Maintains predictable clamping threshold across -55 °C to +175 °C operating range |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN 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: Bidirectional voltage clamp placed across differential signal pair or supply rail to limit transient overvoltage. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs by clamping surges to ≤274 V while drawing <1.0 μA at 171 V nominal. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring transients. IC Role / Device Role / Timing Role: Standoff-mode protector on 24 V DC input channels, conducting only during >171 V excursions. Use Value: Enables robust operation in factory automation with 400 W surge immunity and AEC-Q101 reliability validation. |
| Telecom Line Interface | Consumer Appliance Power Supply |
Use Scenario: Shielding Ethernet PHY front-end and RS-485 transceivers from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary gas discharge tube, providing fast-response clamping. Use Value: Delivers sub-nanosecond response time and 274 V clamping to preserve signal integrity in high-speed data links. |
Use Scenario: Suppressing switch-mode power supply turn-off spikes on AC mains input stage of washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across bridge rectifier output or bulk capacitor. Use Value: Absorbs 400 W energy pulses without degradation, supporting UL/IEC 61000-4-5 compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | DO-214AA package; 170 V VWM, 189–209 V VBR, 275 V VC @ 1.5 A; same 400 W PPPM but higher thermal mass | Preferred for surface-mount layouts requiring lower profile and automated assembly; less suitable for through-hole legacy designs | Select when board space constraints favor SMD or when reflow compatibility is required over wave-solder process. |
| P6SMB170CA | DO-214AA package; identical VWM/VBR/VC specs but rated for 600 W PPPM (10/1000 μs); higher surge margin | Used where IEC 61000-4-5 Level 4 immunity (4 kV line-to-line) must be exceeded with headroom | Choose when system-level surge testing demands ≥50 % power margin beyond minimum 400 W requirement. |
Compared with BZW04-171BHE3/54, SMBJ170CA offers SMD compatibility at the cost of through-hole mounting, while P6SMB170CA provides higher surge tolerance in the same footprint - both require layout revision but deliver validated clamping performance for 170–171 V systems.
Availability
BZW04-171BHE3/54 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 AEC-Q101 assurance and DO-41 through-hole compatibility.
Supply support for BZW04-171BHE3/54 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The BZW04 series is part of Vishay's TransZorb® TVS portfolio, engineered for robust transient suppression in automotive, industrial, and communications infrastructure where failure modes must be mitigated without compromising signal fidelity.
FAQ
What is the standoff voltage rating of the BZW04-171BHE3/54?
The BZW04-171BHE3/54 has a standoff voltage (VWM) of 171 V - the maximum DC or RMS voltage it can withstand continuously without entering avalanche conduction. This value is confirmed in the Vishay datasheet Document Number 88316, Table "ELECTRICAL CHARACTERISTICS", and defines the upper limit of normal operating voltage before transient clamping activates. Exceeding 171 V triggers bidirectional breakdown behavior.
Is the BZW04-171BHE3/54 qualified for automotive use?
Yes, the BZW04-171BHE3/54 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 16-Sep-2021 (Document Number 88316), footnote (1) under "RATINGS AND CHARACTERISTICS CURVES". The HE3 suffix denotes RoHS-compliant, AEC-Q101-qualified commercial grade, making BZW04-171BHE3/54 suitable for automotive body electronics, sensor interfaces, and powertrain auxiliary circuits.
What does the "B" suffix indicate in BZW04-171BHE3/54?
The "B" suffix in BZW04-171BHE3/54 designates a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. As specified in the Vishay datasheet, bidirectional types have no polarity marking and exhibit identical VBR and VC characteristics in either direction - essential for protecting AC-coupled or differential signal paths where polarity reversal may occur.
What is the maximum clamping voltage of the BZW04-171BHE3/54 under surge conditions?
The BZW04-171BHE3/54 has a maximum clamping voltage (VC) of 274 V when subjected to its rated peak pulse current (IPPM) of 1.5 A using the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and appears in the "ELECTRICAL CHARACTERISTICS" table for bidirectional types in the Vishay datasheet. It represents the highest voltage seen downstream during a defined surge event.
Does the BZW04-171BHE3/54 have a defined polarity marking on the package?
No, the BZW04-171BHE3/54 does not have a polarity marking on its DO-41 package. As a bidirectional TVS diode, it functions identically regardless of terminal orientation - confirmed in the Vishay datasheet section "MECHANICAL DATA", which states: "no marking on bidirectional types". This eliminates orientation errors during manual or automated assembly and simplifies layout for symmetric protection schemes.
BZW04-171BHE3/54 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
BZW04-171BHE3/54 FAQ
1.How can I place an order for BZW04-171BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-171BHE3/54 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 BZW04-171BHE3/54 reliable?
The price and inventory of BZW04-171BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-171BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-171BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-171BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-171BHE3/54?
BZW04-171BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-171BHE3/54 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 BZW04-171BHE3/54?
For technical support, including BZW04-171BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-171BHE3/54 requirements.
6.How does Aetrix verify that BZW04-171BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-171BHE3/54 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 BZW04-171BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-171BHE3/54?
All BZW04-171BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-171BHE3/54, 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 BZW04-171BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04-171BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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