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Vishay General Semiconductor - Diodes Division BZW04-7V8HE3/54
- Part No.:
- BZW04-7V8HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZW04-7V8HE3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,517
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Product details
Overview
BZW04-7V8HE3/54 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 a 7.78 V stand-off voltage (VWM), 8.65–9.55 V breakdown voltage (VBR) at 1 mA, and clamps to ≤13.4 V at 30 A peak pulse current (10/1000 μs), supporting robust ESD and surge protection in automotive sensor interfaces.
For engineers reviewing the BZW04-7V8HE3/54 datasheet, BZW04-7V8HE3/54 pinout, BZW04-7V8HE3/54 application, or BZW04-7V8HE3/54 equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, low leakage (<50 μA at VWM), and 400 W peak pulse power - critical for I/O line protection in harsh environments.
Technical Context
This device operates as a voltage-clamped shunt protector with symmetrical bidirectional avalanche behavior, enabling suppression of both positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 μs pulses.
Designed for operation across –55 °C to +175 °C junction temperature range, it delivers consistent clamping performance with a VBR temperature coefficient of 0.073 %/°C and meets JESD201 Class 2 whisker resistance requirements due to its HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.78 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 8.65 V / 9.55 V at 1 mA - defines reliable avalanche initiation window for predictable clamping onset |
| IPPM | 30.0 A (10/1000 μs) - peak transient current it safely diverts without failure |
| VC | ≤13.4 V at IPPM - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 400 W - peak pulse power handling capability under standardized surge waveform |
| ID @ VWM | ≤50 μA - low leakage ensures minimal standby power loss and signal integrity |
| TJ max | +175 °C - enables use in under-hood automotive and industrial high-temperature environments |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically - bidirectional conduction allows placement without orientation concern |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control, ADAS sensors, and body modules |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter consistency under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) in compact DO-41 form factor |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes stress on downstream ICs by limiting overvoltage exposure during fast transients |
| JESD201 Class 2 whisker resistance | Enables reliable solder joint integrity in high-reliability applications with extended field life |
Applications
| Automotive Sensor Interface | Industrial CAN Bus Node |
|---|---|
Use Scenario: Protecting LIN or SENT signal lines from load-dump and inductive switching transients in vehicle door modules and climate sensors. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point to clamp surges before reaching MCU or transceiver. Use Value: Prevents latch-up or permanent damage to 5 V tolerant analog front-ends while maintaining signal fidelity below 13.4 V clamping threshold. |
Use Scenario: Safeguarding CANH/CANL differential pair against ESD events and bus faults in factory automation PLCs and motor drives. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across differential lines to absorb ±8 kV contact ESD per IEC 61000-4-2 without disrupting data integrity. Use Value: Maintains CAN signal eye diagram compliance by limiting overshoot/undershoot to <±13.4 V during transient events. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V USB-C PD output rails subjected to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Fast-response clamping device placed after DC-DC converter output filter to protect connected devices. Use Value: Limits transient excursions to ≤13.4 V within nanoseconds, preventing false triggering or reset of downstream USB peripherals. |
Use Scenario: Protecting Ethernet PHY interface pins (e.g., MDI-X) from lightning-induced surges in DSLAM and ONU equipment. IC Role / Device Role / Timing Role: Primary-level TVS on RJ-45 magnetics secondary side to divert common-mode surges before transformer saturation. Use Value: Sustains 400 W pulse handling without degradation, preserving signal integrity up to 100 MHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA | DO-214AA package; higher 600 W PPPM; VC = 11.2 V at 34.1 A; slightly tighter VBR tolerance (6.65–7.35 V) | Requires PCB footprint change; better suited for higher-energy surges but less space-constrained designs | Select SMBJ7.0CA when higher pulse power margin or lower clamping voltage is required and board layout permits larger package. |
| P6KE7.8CA | DO-15 package; 600 W PPPM; VC = 12.0 V at 33.3 A; slower response due to higher junction capacitance (~1000 pF vs. ~500 pF) | Compatible lead spacing but longer body; not recommended for high-speed data lines due to higher capacitance | Choose P6KE7.8CA only for low-frequency power rail protection where capacitance is non-critical and legacy DO-15 compatibility is needed. |
Compared with SMBJ7.0CA and P6KE7.8CA, BZW04-7V8HE3/54 provides optimal balance of AEC-Q101 qualification, DO-41 footprint compatibility, and low-capacitance bidirectional clamping - making it preferred for space-constrained automotive and industrial signal-line protection where reliability and size are jointly prioritized.
Availability
BZW04-7V8HE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and telecom line card protection requiring stable component supply and AEC-Q101 compliance.
Supply support for BZW04-7V8HE3/54 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The BZW04 series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, bidirectional transient suppression in harsh electromagnetic environments with emphasis on automotive-grade reliability and standardized surge immunity.
FAQ
What is the polarity configuration of BZW04-7V8HE3/54?
BZW04-7V8HE3/54 is a bidirectional TVS diode with symmetrical terminal behavior - neither end is marked as anode or cathode. This allows installation without orientation concerns on AC-coupled or differential signal lines, unlike unidirectional variants which require correct polarity alignment relative to ground.
Is BZW04-7V8HE3/54 qualified for automotive applications?
Yes, BZW04-7V8HE3/54 carries the HE3 suffix, indicating full AEC-Q101 qualification. It has been tested and certified for operation across –55 °C to +175 °C junction temperature, meeting stress test requirements for mechanical shock, temperature cycling, and humidity resistance mandated for automotive electronics.
What does the "/54" suffix indicate in BZW04-7V8HE3/54?
The "/54" suffix denotes the preferred packaging code: 13-inch diameter paper tape and reel, with a base quantity of 550 units per reel. This format supports automated SMT placement via pick-and-place machines and aligns with standard logistics handling for high-volume manufacturing.
How does BZW04-7V8HE3/54 perform under repeated surge conditions?
BZW04-7V8HE3/54 supports repetitive 10/1000 μs surges at a 0.01 % duty cycle, meaning it can withstand up to 400 W peak pulses at a rate of four pulses per minute indefinitely without parameter shift or degradation - validated per JEDEC JESD22-A114 and IEC 61000-4-5 test protocols.
Can BZW04-7V8HE3/54 be used in place of a unidirectional TVS like BZW04-7V8E3/54?
No - BZW04-7V8HE3/54 is bidirectional and lacks polarity marking, whereas BZW04-7V8E3/54 is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC signals or differential pairs; unidirectional types are required for DC-biased lines where reverse conduction must be blocked.
BZW04-7V8HE3/54 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 30A
- 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)
BZW04-7V8HE3/54 FAQ
1.How can I place an order for BZW04-7V8HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZW04-7V8HE3/54 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 BZW04-7V8HE3/54 reliable?
The price and inventory of BZW04-7V8HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZW04-7V8HE3/54 is usually 5 days.
3.What payment methods are accepted for BZW04-7V8HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZW04-7V8HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZW04-7V8HE3/54?
BZW04-7V8HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZW04-7V8HE3/54 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 BZW04-7V8HE3/54?
For technical support, including BZW04-7V8HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZW04-7V8HE3/54 requirements.
6.How does Aetrix verify that BZW04-7V8HE3/54 is sourced from the original manufacturer or authorized distributors?
All BZW04-7V8HE3/54 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 BZW04-7V8HE3/54 meets industry standards.
7.What is the process for return or replacement of BZW04-7V8HE3/54?
All BZW04-7V8HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with BZW04-7V8HE3/54, 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 BZW04-7V8HE3/54 part is unused and in its original packaging.
Return procedure for BZW04-7V8HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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