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Vishay General Semiconductor - Diodes Division BZG04-15TR3
- Part No.:
- BZG04-15TR3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-15TR3.pdf
- Description:
- TVS DIODE 15VWM 25.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,920
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Product details
Overview
BZG04-15TR3 from Vishay Semiconductors is a glass-passivated, surface-mount Zener diode designed for transient voltage suppression in power rails and signal lines. It features a nominal Zener voltage of 15 V, 300 W non-repetitive peak surge power (10/1000 µs), 50 A peak forward surge current, and clamps to 25.6 V at 11.7 A, making it suitable for protecting automotive ECUs and industrial I/O interfaces against ESD and lightning-induced surges.
For engineers reviewing the BZG04-15TR3 datasheet, BZG04-15TR3 pinout, BZG04-15TR3 application, or BZG04-15TR3 equivalent, key selection criteria include its DO-214AC package, 15 V standoff voltage, 25.6 V clamping voltage at 11.7 A, 710 pF junction capacitance at 0 V, and compliance with RoHS and lead-free requirements.
Technical Context
The BZG04-15TR3 operates as a unidirectional, silicon planar Zener diode optimized for high-energy transient clamping. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repeated surge stress, while its low thermal resistance (RthJL = 25 K/W) supports rapid heat dissipation during short-duration pulses.
Designed for operation at junction temperatures up to 150 °C, the device delivers consistent clamping performance across industrial temperature ranges. Its fast response time (≤1 ps) enables effective suppression of nanosecond-scale transients, and its 15 V nominal Zener voltage is specified at 25 mA test current with ±5 % tolerance per the BZG04-Series family specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V nominal at IZT = 25 mA; defines precise DC clamping threshold for overvoltage protection circuits |
| Clamping Voltage (VCL) | 25.6 V at IPP = 11.7 A (10/1000 µs); maximum voltage seen by protected circuit during surge event |
| Junction Capacitance (Cj) | 710 pF at VR = 0 V, f = 1 MHz; impacts high-frequency signal integrity in data line protection |
| Peak Surge Power (PZSM) | 300 W for 10/1000 µs pulse; determines energy-handling capability for lightning and EFT events |
| Surge Current (IFSM) | 50 A for 10 ms half-sine wave; validates robustness against sustained overcurrent transients |
| Thermal Resistance (RthJL) | 25 K/W junction-to-lead; enables efficient heat transfer to PCB copper when mounted per Fig. 1b |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, molded plastic case with cathode band marking; dimensions per Vishay Doc. 85594 Rev. 2.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected circuit; enables bidirectional clamp when used with series diode or in back-to-back configuration |
| Cathode | Zener breakdown terminal | Marked with band; connected to higher-potential rail (e.g., VCC or signal line) to clamp positive transients to ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable Zener voltage drift < ±0.1 %/°C and prevents moisture-induced parameter shift in humid environments |
| High surge capability (300 W) | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity requirements without external series impedance |
| Fast response time (≤1 ps) | Clamps sub-nanosecond ESD events before downstream ICs experience latch-up or gate oxide damage |
| RoHS-compliant, lead-free | Enables direct use in automotive and industrial assemblies requiring full EU directive compliance without requalification |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12 V supply rail and LIN bus lines from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between VBAT and GND, with cathode tied to VBAT. Use Value: Clamps 300 V/50 A load dump spikes to ≤25.6 V, preventing damage to MCU power regulators and CAN/LIN transceivers. | Use Scenario: Shielding 24 V digital input channels from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff protector on each optocoupler input, configured anode-to-GND, cathode-to-signal line. Use Value: Limits transient voltage to 25.6 V within 1 ps, ensuring optocoupler CTR remains stable and input logic thresholds are not violated. |
| Telecom Remote Radio Unit (RRU) | Medical Diagnostic Sensor Interface |
Use Scenario: Safeguarding RS-485 communication lines exposed to induced surges on outdoor antenna feeder cables. IC Role / Device Role / Timing Role: Bidirectional clamp formed by two BZG04-15TR3 devices in series opposition across differential pair. Use Value: Maintains signal integrity with 710 pF capacitance while clamping common-mode surges to <30 V, preserving 10 Mbps data rate. | Use Scenario: Protecting analog front-end inputs of ECG/EEG amplifiers from electrostatic discharge during patient handling. IC Role / Device Role / Timing Role: Low-leakage Zener (IR ≤ 5 µA) placed across amplifier input pins to shunt ESD currents before op-amp input stage. Use Value: Prevents input stage saturation with <1.2 V forward voltage drop and zero added noise due to passive clamping architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | DO-214AA package; 15 V standoff; 24.4 V clamping at 12.9 A; 600 W surge rating | Higher surge rating but larger footprint; requires PCB layout revision for pad compatibility | Select when higher energy margin is required and board space permits DO-214AA mounting |
| P6KE15A | DO-15 axial lead; 15 V standoff; 24.4 V clamping at 12.3 A; 600 W surge rating | Through-hole mounting only; incompatible with SMT assembly; unsuitable for automated production | Choose only for prototyping or legacy through-hole designs where rework is acceptable |
Compared with SMBJ15A and P6KE15A, the BZG04-15TR3 offers optimal balance of compact DO-214AC footprint, 300 W surge capability, and 710 pF capacitance-making it preferred for space-constrained, high-volume SMT applications where moderate surge levels and signal-line compatibility are critical.
Availability
BZG04-15TR3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, telecom remote radio units, and medical sensor interfaces requiring stable component supply and RoHS-compliant sourcing.
Supply support for BZG04-15TR3 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 diodes, MOSFETs, and optoelectronics for demanding industrial and automotive applications.
The BZG04-Series was developed specifically for high-energy transient suppression in harsh environments, targeting applications where glass passivation, tight Zener tolerance, and repeatable clamping performance are essential.
FAQ
What is the Zener voltage tolerance for BZG04-15TR3?
The BZG04-15TR3 has a nominal Zener voltage of 15 V with a tolerance of ±5 %, measured at IZT = 25 mA and Tamb = 25 °C. This tolerance is confirmed in the Electrical Characteristics table of Vishay Document Number 85594 Rev. 2.2. The BZG04-15TR3 maintains this specification across its qualified operating temperature range, supporting predictable clamping behavior in production designs.
Does BZG04-15TR3 meet RoHS and lead-free requirements?
Yes, the BZG04-15TR3 is explicitly stated as lead (Pb)-free and compliant with RoHS Directive 2002/95/EC and WEEE Directive 2002/96/EC per Vishay Document Number 85594 Rev. 2.2. Its construction uses RoHS-compliant materials throughout, including termination plating and molding compound, enabling direct use in environmentally regulated markets without additional qualification.
What is the maximum junction temperature rating for BZG04-15TR3?
The BZG04-15TR3 has a maximum junction temperature (Tj) rating of 150 °C, as specified in the Absolute Maximum Ratings table of the official Vishay datasheet. This allows reliable operation in under-hood automotive and high-ambient industrial environments when mounted per recommended thermal guidelines (e.g., Fig. 1b on epoxy-glass PCB).
How does the clamping voltage of BZG04-15TR3 compare to its Zener voltage?
The BZG04-15TR3 clamps to 25.6 V at 11.7 A (10/1000 µs pulse), which is significantly higher than its 15 V Zener voltage-reflecting dynamic avalanche behavior under high-current surge conditions. This 71 % overvoltage margin is typical for Zener-based TVS devices and ensures safe headroom for protected ICs while maintaining low leakage (<5 µA) at rated standoff voltage.
Is BZG04-15TR3 suitable for bidirectional transient suppression?
The BZG04-15TR3 is a unidirectional device, but it can be used in bidirectional configurations-for example, by pairing two units in series opposition across a differential line. Its 1.2 V forward voltage at 0.5 A enables effective negative-going transient clamping when combined with a second unit, as validated in Vishay's application guidance for RS-485 protection using the BZG04-Series.
BZG04-15TR3 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):
- 15V
- Voltage - Breakdown (Min):
- 16.8V
- Voltage - Clamping (Max) @ Ipp:
- 25.6V
- Current - Peak Pulse (10/1000µs):
- 11.7A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 710pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
BZG04-15TR3 FAQ
1.How can I place an order for BZG04-15TR3 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-15TR3 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 BZG04-15TR3 reliable?
The price and inventory of BZG04-15TR3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-15TR3 is usually 5 days.
3.What payment methods are accepted for BZG04-15TR3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-15TR3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-15TR3?
BZG04-15TR3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-15TR3 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 BZG04-15TR3?
For technical support, including BZG04-15TR3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-15TR3 requirements.
6.How does Aetrix verify that BZG04-15TR3 is sourced from the original manufacturer or authorized distributors?
All BZG04-15TR3 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 BZG04-15TR3 meets industry standards.
7.What is the process for return or replacement of BZG04-15TR3?
All BZG04-15TR3 units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-15TR3, 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 BZG04-15TR3 part is unused and in its original packaging.
Return procedure for BZG04-15TR3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZG04-15TR3 Tags
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