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Vishay General Semiconductor - Diodes Division BZW04P9V4BHE3/54
- Part No.:
- BZW04P9V4BHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04P9V4BHE3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,135
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Product details
Overview
BZW04P9V4BHE3/54 from Vishay General Semiconductor is a bi-directional TransZorb® transient voltage suppressor (TVS) diode designed for robust overvoltage protection on signal and power lines. It features a 9.4 V stand-off voltage (VWM), 15.6 V clamping voltage (VC) at 25.7 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the BZW04P9V4BHE3/54 datasheet, BZW04P9V4BHE3/54 pinout, BZW04P9V4BHE3/54 application, or BZW04P9V4BHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AL (DO-41) axial package, bi-directional symmetry, low 0.075 %/°C VBR temperature coefficient, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable breakdown behavior, while the 10/1000 μs waveform rating reflects real-world lightning and inductive-switching surge conditions per IEC 61000-4-5.
The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD events (±30 kV contact per IEC 61000-4-2) and repetitive transients. Its 175 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments and high-reliability industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.4 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 10.5–12.1 V at 1 mA - Confirmed breakdown range ensures reliable triggering across process variation and temperature. |
| VC (Clamping Voltage) | 15.6 V at 25.7 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for IC-level voltage tolerance. |
| PPPM (Peak Pulse Power) | 400 W - Sustains standardized 10/1000 μs surge energy without failure; enables single-device protection for medium-energy transients. |
| ID (Reverse Leakage) | 5.0 μA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | 175 °C - Enables operation in engine-control units, motor drives, and other high-ambient-temperature applications. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD. |
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. No polarity marking - bi-directional functionality confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct equally in either polarity; no cathode band - simplifies PCB layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable VBR and low leakage over lifetime and temperature cycling - critical for long-term reliability in automotive ECUs. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 3 (1 kV line-to-ground) surge protection without derating in standard PCB layouts. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, high-temperature operating life, and ESD robustness - reduces qualification burden for Tier 1 suppliers. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and Directive 2011/65/EU - supports global manufacturing and end-of-life compliance. |
| Low temperature coefficient (0.075 %/°C) | Minimizes VBR drift across -55 °C to +175 °C - maintains consistent clamping margin in extreme thermal environments. |
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 ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector interface to shunt surge energy before it reaches signal conditioning ICs. Use Value: Prevents latch-up and permanent damage to 5 V/3.3 V sensor front-ends while maintaining <5 μA leakage at 9.4 V operating bias. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring transients and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact or optocoupler input stages, coordinated with series impedance for current limiting. Use Value: Enables >100,000 surge cycles at 25.7 A without parameter shift - extends field service life in factory automation equipment. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485/RS-232 transceivers and Ethernet PHYs from ESD and induced surges on building-entry cabling. IC Role / Device Role / Timing Role: First-line transient suppressor on differential data lines, paired with common-mode chokes for enhanced immunity. Use Value: Clamps to ≤15.6 V within <1 ns - keeps transceiver supply rails within absolute maximum ratings during ±8 kV contact ESD events. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Snubber-grade TVS across motor terminals or H-bridge outputs to absorb inductive kickback energy. Use Value: Handles 400 W peak pulses without degradation - eliminates need for external RC snubbers and reduces BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Uni-directional; 9.0 V VWM; 14.4 V VC at 27.8 A; same DO-214AC package but surface-mount. | Requires polarity-aware layout; not suitable for AC-coupled or floating lines without additional diodes. | Select when board space constraints favor SMD or unidirectional DC rail protection is sufficient. |
| P6KE9.1A | Uni-directional; 9.1 V VWM; 14.4 V VC at 27.8 A; larger DO-15 package; lower surge rating (600 W). | Larger footprint and higher leakage (50 μA); less suited for high-density automotive modules. | Consider only for legacy through-hole designs where DO-15 is already standardized and AEC-Q101 is not required. |
Compared with SMAJ9.0A and P6KE9.1A, BZW04P9V4BHE3/54 offers verified bi-directional operation in a compact axial DO-41 package with AEC-Q101 qualification - making it the preferred choice for new automotive and industrial designs requiring polarity-agnostic surge protection and extended temperature reliability.
Availability
BZW04P9V4BHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, long-lifecycle assurance, and traceable RoHS-compliant sourcing.
Supply support for BZW04P9V4BHE3/54 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The BZW04P9V4BHE3/54 belongs to the TransZorb® family of TVS diodes engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of BZW04P9V4BHE3/54 and how is it measured?
The clamping voltage (VC) of BZW04P9V4BHE3/54 is 15.6 V, measured at a peak pulse current (IPPM) of 25.7 A using the standardized 10/1000 μs double-exponential surge waveform. This value represents the maximum voltage imposed on the protected circuit during worst-case transient events and is guaranteed across the full operating temperature range per Vishay Document 88316.
Is BZW04P9V4BHE3/54 suitable for automotive applications?
Yes, BZW04P9V4BHE3/54 is AEC-Q101 qualified and specifically tested for automotive use, including high-temperature operating life, thermal cycling, and ESD robustness. Its 175 °C maximum junction temperature, bi-directional symmetry, and DO-41 mechanical stability make it appropriate for engine control units, body electronics, and ADAS sensor interfaces.
What does the "HE3" suffix indicate in BZW04P9V4BHE3/54?
The "HE3" suffix in BZW04P9V4BHE3/54 denotes RoHS-compliant construction with JESD201 Class 2 whisker resistance - confirming enhanced reliability for lead-free soldering processes and long-term storage. It also signifies AEC-Q101 qualification, distinguishing it from commercial-grade "E3" variants.
How does BZW04P9V4BHE3/54 differ from uni-directional TVS diodes like SMAJ9.0A?
BZW04P9V4BHE3/54 is bi-directional with symmetrical clamping in both polarities and no polarity marking, whereas SMAJ9.0A is uni-directional and requires correct cathode orientation. This makes BZW04P9V4BHE3/54 ideal for AC-coupled, floating, or bidirectional signal lines - eliminating layout errors and enabling simpler, more robust protection schemes.
What is the maximum reverse leakage current for BZW04P9V4BHE3/54 at its stand-off voltage?
The maximum reverse leakage current (ID) for BZW04P9V4BHE3/54 is 5.0 μA at its 9.4 V stand-off voltage (VWM), measured at 25 °C. This low leakage preserves signal integrity in high-impedance sensor circuits and minimizes power loss in battery-powered or always-on systems.
BZW04P9V4BHE3/54 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 25.7A
- 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)
BZW04P9V4BHE3/54 FAQ
1.How can I place an order for BZW04P9V4BHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04P9V4BHE3/54 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 BZW04P9V4BHE3/54 reliable?
The price and inventory of BZW04P9V4BHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04P9V4BHE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04P9V4BHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04P9V4BHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04P9V4BHE3/54?
BZW04P9V4BHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04P9V4BHE3/54 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 BZW04P9V4BHE3/54?
For technical support, including BZW04P9V4BHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04P9V4BHE3/54 requirements.
6.How does Aetrix verify that BZW04P9V4BHE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04P9V4BHE3/54 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 BZW04P9V4BHE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04P9V4BHE3/54?
All BZW04P9V4BHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04P9V4BHE3/54, 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 BZW04P9V4BHE3/54 part is unused and in its original packaging.
Return procedure for BZW04P9V4BHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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