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Vishay General Semiconductor - Diodes Division BZG04-8V2TR3
- Part No.:
- BZG04-8V2TR3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-8V2TR3.pdf
- Description:
- TVS DIODE 8.2VWM 14.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,990
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Product details
Overview
BZG04-8V2TR3 from Vishay Semiconductors is a glass-passivated Zener diode designed for transient voltage suppression in DC power rails and signal lines, with a nominal Zener voltage of 8.2 V, 300 W non-repetitive peak surge power rating, 14.8 V clamping voltage at 20.3 A surge current, and DO-214AC (SMA) package. It serves as a primary overvoltage protection device in automotive body electronics and industrial I/O modules.
For engineers reviewing the BZG04-8V2TR3 datasheet, BZG04-8V2TR3 pinout, BZG04-8V2TR3 application, or BZG04-8V2TR3 equivalent, key selection criteria include standoff voltage tolerance, clamping ratio under 10/1000 µs surge, thermal resistance to ambient on epoxy-glass PCB, and RoHS-compliant lead-free construction.
Technical Context
The BZG04-8V2TR3 operates as a unidirectional voltage clamp with precise breakdown at 9.4 V (min) to 10.0 V (max) at 50 mA test current, exhibiting ≤1 ps response time and 1200 pF junction capacitance at 0 V. Its thermal design relies on low RthJL (25 K/W) and mounting-dependent RthJA (100–150 K/W), enabling reliable operation up to 150 °C junction temperature.
It delivers 3 W steady-state power dissipation at 100 °C ambient when mounted with RthJA < 25 K/W, and withstands 50 A peak forward surge current (10 ms half-sine). The device meets RoHS 2002/95/EC and WEEE 2002/96/EC, with no ozone-depleting substances used in manufacturing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.4 V min to 10.0 V max @ IZT = 50 mA - defines precise clamping threshold for 8.2 V standoff-rated protection |
| Clamping Voltage (VCL) | 14.8 V @ IPP = 20.3 A (10/1000 µs) - determines maximum voltage seen by protected circuit during surge |
| Peak Surge Power (PZSM) | 300 W - enables handling of high-energy transients without failure in automotive load-dump scenarios |
| Junction Capacitance (Cj) | 1200 pF @ VR = 0 V, f = 1 MHz - impacts high-frequency signal integrity in data line protection |
| Thermal Resistance (RthJA) | 100–150 K/W depending on PCB mount - dictates required copper area and heatsinking for continuous power handling |
| Surge Current (IFSM) | 50 A (10 ms half-sine) - supports robustness against repetitive inrush or fault currents in power supply inputs |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, molded plastic case with axial leads trimmed and formed for PCB mounting; weight ≈ 77 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Current entry point during forward conduction | Connected to lower-potential side of protected node; enables bidirectional clamping when paired with reverse diode |
| Cathode (K) | Current exit point during reverse breakdown | Connected to higher-potential rail (e.g., +12 V); conducts surge current to ground during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable Zener voltage over lifetime and improved humidity resistance vs. epoxy-passivated alternatives |
| Fast response time ≤ 1 ps | Enables effective suppression of nanosecond-scale ESD and lightning-induced transients before downstream IC damage |
| RoHS-compliant, lead-free | Meets global environmental regulations without compromising solderability or thermal cycling reliability |
| High reliability qualification | Validated for automotive-grade stress testing including temperature cycling, HAST, and surge endurance |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver power pins from battery load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Primary unidirectional TVS clamp placed between 12 V rail and ground, triggered within picoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤14.8 V during 300 W surges, preventing latch-up or permanent damage to 5 V logic interfaces. |
Use Scenario: Safeguarding 24 V digital input circuits from field-wiring induced transients (IEC 61000-4-5 Level 3). IC Role / Device Role / Timing Role: Standoff diode in series with optocoupler input, absorbing energy before reaching isolation barrier. Use Value: Maintains signal integrity with 1200 pF capacitance while surviving repeated 20.3 A surges without parameter drift. |
| DC Power Supply Output Protection | RS-485 Transceiver Bus Line |
Use Scenario: Secondary overvoltage clamp on regulated 5 V or 3.3 V outputs to guard against regulator failure or feedback loop loss. IC Role / Device Role / Timing Role: Shunt regulator operating in Zener mode only during fault conditions; zero quiescent current in normal operation. Use Value: Provides fail-safe shutdown margin with 9.4–10.0 V breakdown tolerance, avoiding nuisance triggering during ripple or startup overshoot. |
Use Scenario: Common-mode transient suppression on RS-485 differential bus lines exposed to motor drive noise or ESD. IC Role / Device Role / Timing Role: Paired cathode-to-bus anode-to-ground configuration for bidirectional clamping across A/B lines. Use Value: Delivers symmetrical 14.8 V clamping with matched VZ tolerance, preserving differential signaling integrity under surge stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener-based transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Higher clamping voltage (13.6 V @ 24.7 A), lower surge rating (600 W), SMA package same footprint | Designed for higher-energy IEC 61000-4-5 surges; less precise VZ tolerance (±5 % vs. BZG04-8V2TR3's ±3.5 %) | Select SMBJ8.0A when higher surge energy handling is prioritized over tight clamping voltage control |
| P6SMB8.2A | Same VZ (8.2 V nominal), but 600 W PZSM, 13.6 V VCL @ 24.7 A, identical DO-214AC package | Broader industrial qualification; slightly slower response (>1 ns) due to larger junction area | Choose P6SMB8.2A where legacy design compatibility and higher surge margin outweigh sub-nanosecond speed requirements |
Compared with SMBJ8.0A and P6SMB8.2A, the BZG04-8V2TR3 offers tighter Zener voltage tolerance and faster response-critical for protecting sensitive 3.3 V logic-while delivering sufficient 300 W surge capacity for most automotive and industrial use cases without requiring PCB layout changes.
Availability
BZG04-8V2TR3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and DC power supply output safeguarding requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for BZG04-8V2TR3 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability passive and active components for automotive, industrial, and computing markets.
The BZG04-Series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing precision Zener voltage, fast response, and robust surge survivability in compact surface-mount packages.
FAQ
What is the exact Zener voltage range for BZG04-8V2TR3 at 50 mA test current?
The BZG04-8V2TR3 has a guaranteed Zener voltage range of 9.4 V (minimum) to 10.0 V (maximum) when tested at IZT = 50 mA and Tamb = 25 °C. This corresponds to a ±3.5 % tolerance around the 8.2 V standoff rating and ensures predictable clamping behavior in overvoltage protection circuits.
Does BZG04-8V2TR3 support bidirectional transient suppression?
No, BZG04-8V2TR3 is a unidirectional Zener diode. For bidirectional protection, two BZG04-8V2TR3 devices must be connected in series opposition (anode-to-anode), or a dedicated bidirectional TVS like SMAJ8.0CA should be selected. Its datasheet specifies only reverse breakdown and forward conduction characteristics.
What is the maximum allowable junction temperature for continuous operation of BZG04-8V2TR3?
The absolute maximum junction temperature for BZG04-8V2TR3 is 150 °C. Continuous operation must ensure that power dissipation and PCB thermal design keep Tj below this limit - for example, at 100 °C ambient with RthJA < 25 K/W, the device supports up to 3 W steady-state dissipation.
How does the clamping voltage of BZG04-8V2TR3 compare to its Zener voltage?
The clamping voltage of BZG04-8V2TR3 is 14.8 V at 20.3 A (10/1000 µs pulse), which is ~55 % higher than its minimum Zener voltage (9.4 V). This clamping ratio reflects the dynamic impedance rise under high-current surge conditions and defines the upper voltage bound seen by protected circuitry.
Is BZG04-8V2TR3 compatible with lead-free reflow soldering processes?
Yes, BZG04-8V2TR3 is rated for lead-free reflow soldering per J-STD-020. Its DO-214AC package and glass-passivated junction withstand peak temperatures up to 260 °C for 30 seconds, and it complies with RoHS 2002/95/EC and WEEE 2002/96/EC directives.
BZG04-8V2TR3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- BZG04
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.2V
- Voltage - Breakdown (Min):
- 9.4V
- Voltage - Clamping (Max) @ Ipp:
- 14.8V
- Current - Peak Pulse (10/1000µs):
- 20.3A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 1200pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-8V2TR3 FAQ
1.How can I place an order for BZG04-8V2TR3 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-8V2TR3 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 BZG04-8V2TR3 reliable?
The price and inventory of BZG04-8V2TR3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-8V2TR3 is usually 5 days.
3.What payment methods are accepted for BZG04-8V2TR3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-8V2TR3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-8V2TR3?
BZG04-8V2TR3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-8V2TR3 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 BZG04-8V2TR3?
For technical support, including BZG04-8V2TR3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-8V2TR3 requirements.
6.How does Aetrix verify that BZG04-8V2TR3 is sourced from the original manufacturer or authorized distributors?
All BZG04-8V2TR3 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 BZG04-8V2TR3 meets industry standards.
7.What is the process for return or replacement of BZG04-8V2TR3?
All BZG04-8V2TR3 units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-8V2TR3, 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 BZG04-8V2TR3 part is unused and in its original packaging.
Return procedure for BZG04-8V2TR3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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