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Vishay General Semiconductor - Diodes Division BZW04-9V4HE3/54
- Part No.:
- BZW04-9V4HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-9V4HE3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,127
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Product details
Overview
BZW04-9V4HE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features a 9.4 V standoff voltage (VWM), 10.5–11.6 V breakdown voltage (VBR), 15.6 V clamping voltage (VC) at 25.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on signal lines and power rails of automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the BZW04-9V4HE3/54 datasheet, BZW04-9V4HE3/54 pinout, BZW04-9V4HE3/54 application, or BZW04-9V4HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical data, clamping performance under surge stress, and direct alternatives for board-level transient protection design.
Technical Context
This device operates bidirectionally with symmetrical clamping in both polarities, enabling robust protection against positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable VBR temperature coefficient (0.075 %/°C) and low incremental surge resistance, critical for repeatable clamping across thermal cycles.
The 400 W peak pulse power rating is defined per 10/1000 μs waveform at TA = 25 °C and derates linearly above 25 °C per Figure 2; maximum junction temperature is rated to +175 °C, supporting operation in under-hood automotive environments and high-ambient industrial controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.4 V - Maximum continuous reverse working voltage before conduction begins; sets minimum system operating margin. |
| VBR (Breakdown Voltage) | 10.5–11.6 V at 1 mA - Confirmed breakdown threshold range; defines onset of avalanche clamping behavior. |
| VC (Clamping Voltage) | 15.6 V at IPPM = 25.7 A - Measured peak voltage during 10/1000 μs surge; determines protected IC's maximum stress exposure. |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy absorption capability; validates suitability for ISO 7637-2 Pulse 1/2a/5a compliance testing. |
| ID (Reverse Leakage) | 5.0 μA at VWM - Low leakage preserves signal integrity and battery life in always-on sensor nodes. |
| TJ max. | +175 °C - Enables deployment in engine control units and motor drive PCBs without thermal derating penalties. |
| AEC-Q101 Qualified | Yes - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standards. Bidirectional construction means no polarity marking - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically during positive or negative surges; no cathode band marking required. |
| Case (body) | Mechanical mounting surface | Non-electrical; provides thermal path to PCB copper pour; no internal connection to die. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| 400 W peak pulse power (10/1000 μs) | Validates protection against severe load dump and inductive switching events per ISO 16750-2. |
| AEC-Q101 qualification | Confirms reliability for automotive applications including powertrain, chassis, and ADAS sensor interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream ICs - critical for 3.3 V and 5 V logic-level protection. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD201 Class 2 whisker resistance for long-term solder joint integrity. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching interface ICs. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers by limiting voltage to ≤15.6 V during 25.7 A surge events. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V DC input lines, paired with series impedance for current limiting. Use Value: Maintains functional safety integrity by ensuring controller remains operational after repeated 400 W transient strikes. |
| Consumer Appliance Motor Control | Telecom Power Supply Input |
Use Scenario: Shielding microcontroller GPIOs and gate drivers in smart appliance motor inverters from commutation spikes. IC Role / Device Role / Timing Role: Fast-response clamping device across half-bridge driver supply rails and feedback sensing nodes. Use Value: Eliminates false triggering and resets caused by sub-100 ns dv/dt transients induced by MOSFET switching. |
Use Scenario: Input-stage surge suppression on AC/DC adapter front-ends handling lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level TVS placed after fuse and before bridge rectifier to absorb line-to-line and line-to-ground transients. Use Value: Extends adapter MTBF by preventing rectifier diode avalanche failure during 6 kV/3 kA combination wave tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | DO-214AA package; 9.0 V VWM; 14.4 V VC at 27.8 A; same 400 W PPPM rating. | Surface-mount footprint requires PCB redesign; higher thermal resistance than DO-41 axial lead. | Select when space-constrained layouts demand SMD placement and thermal management via copper area is feasible. |
| P6KE9.1A | DO-15 package; 9.1 V VWM; 14.4 V VC at 27.8 A; 600 W PPPM (10/1000 μs); unidirectional only. | Lacks bidirectional symmetry; requires correct orientation during assembly; higher peak power but larger body. | Choose for cost-sensitive industrial power supplies where polarity is fixed and higher surge margin is prioritized. |
Compared with BZW04-9V4HE3/54, SMBJ9.0CA offers SMD compatibility at the expense of axial-lead thermal performance, while P6KE9.1A trades bidirectionality for higher pulse power and unidirectional simplicity - neither is pin-compatible, and all require validation of clamping response timing and layout parasitics.
Availability
BZW04-9V4HE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer appliance motor controls requiring stable component supply and AEC-Q101 traceability.
Supply support for BZW04-9V4HE3/54 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, and protection devices with emphasis on reliability and automotive qualification.
The BZW04 series was engineered specifically for high-energy transient suppression in harsh-environment applications, targeting AEC-Q101 compliance and stable clamping performance across -55 °C to +175 °C.
FAQ
What is the clamping voltage of BZW04-9V4HE3/54 under standard surge conditions?
The BZW04-9V4HE3/54 exhibits a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 25.7 A using the 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping performance remains consistent across its qualified operating temperature range due to its low 0.075 %/°C VBR temperature coefficient.
Is BZW04-9V4HE3/54 suitable for automotive applications?
Yes, BZW04-9V4HE3/54 is AEC-Q101 qualified, confirming its suitability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. The HE3 suffix explicitly denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance. Its +175 °C maximum junction temperature and stable clamping behavior under thermal stress further validate its deployment in under-hood and chassis-mounted systems.
How does the bidirectional configuration of BZW04-9V4HE3/54 affect PCB layout?
The bidirectional nature of BZW04-9V4HE3/54 eliminates polarity concerns during placement - no cathode band marking is present, and either terminal may connect to line or return. This simplifies layout for differential or AC-coupled signal paths and avoids orientation errors in high-volume assembly. However, symmetric trace routing and equal thermal relief on both leads remain essential to preserve clamping symmetry and avoid localized heating.
What is the meaning of the "HE3/54" suffix in BZW04-9V4HE3/54?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. The "/54" denotes the preferred packaging code: 13-inch paper tape and reel, with 550 units per reel. This packaging format supports automated pick-and-place assembly and aligns with Vishay's standard logistics configuration for DO-41 devices.
Can BZW04-9V4HE3/54 replace unidirectional TVS diodes in existing designs?
BZW04-9V4HE3/54 can replace unidirectional TVS diodes only if the circuit topology supports bidirectional clamping - for example, across AC signal lines, isolated power rails, or differential buses like CAN. It must not be substituted in unidirectional configurations where forward conduction is intentionally blocked (e.g., DC power input with polarity protection), as its symmetrical structure conducts in both directions. Layout review and surge testing are mandatory before substitution.
BZW04-9V4HE3/54 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:
- 1
- Bidirectional Channels:
- -
- 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)
BZW04-9V4HE3/54 FAQ
1.How can I place an order for BZW04-9V4HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-9V4HE3/54 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 BZW04-9V4HE3/54 reliable?
The price and inventory of BZW04-9V4HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-9V4HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-9V4HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-9V4HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-9V4HE3/54?
BZW04-9V4HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-9V4HE3/54 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 BZW04-9V4HE3/54?
For technical support, including BZW04-9V4HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-9V4HE3/54 requirements.
6.How does Aetrix verify that BZW04-9V4HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-9V4HE3/54 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 BZW04-9V4HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-9V4HE3/54?
All BZW04-9V4HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-9V4HE3/54, 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 BZW04-9V4HE3/54 part is unused and in its original packaging.
Return procedure for BZW04-9V4HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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