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Vishay General Semiconductor - Diodes Division BZG04-15TR
- Part No.:
- BZG04-15TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
BZG04-15TR.pdf
- Description:
- TVS DIODE 15VWM 25.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,062
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Product details
Overview
BZG04-15TR from Vishay Semiconductors is a glass-passivated, surface-mount Zener diode optimized for transient voltage suppression in high-energy surge environments. It features a 15 V standoff voltage (VR), 16.8 V minimum breakdown voltage at 25 mA, 25.6 V clamping voltage at 11.7 A peak pulse current, 300 W non-repetitive surge power rating, and DO-214AC package for industrial power rail protection.
For engineers reviewing the BZG04-15TR datasheet, BZG04-15TR pinout, BZG04-15TR application, or BZG04-15TR equivalent, this device is selected for robust overvoltage clamping in DC power supplies, automotive electronics, and telecom interface circuits where fast response (≤1 ps) and high surge immunity are critical.
Technical Context
The BZG04-15TR operates as a unidirectional voltage-clamping device with a defined reverse-biased Zener breakdown region. Its glass-passivated junction ensures stable leakage current (IR ≤ 5 µA at VR = 15 V) and low thermal resistance (RthJL = 25 K/W) for reliable energy dissipation during transient events.
Designed for 10/1000 µs surge waveforms, it delivers 25.6 V clamping at 11.7 A IPP while maintaining junction temperature below 150 °C under specified mounting conditions. Its DO-214AC case supports PCB-level thermal management via copper overlay per Figure 1a/b in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VR) | 15 V - Maximum reverse voltage before significant conduction begins; sets operating margin for protected circuit. |
| Breakdown Voltage (V(BR)) | 16.8 V min @ 25 mA - Guaranteed Zener onset threshold ensuring predictable clamping initiation. |
| Clamping Voltage (VCL) | 25.6 V @ 11.7 A - Peak voltage seen by protected load during 10/1000 µs surge; defines worst-case stress level. |
| Surge Power (PZSM) | 300 W - Non-repetitive peak power handling capability for transient suppression without failure. |
| Junction Temp (Tj) | 150 °C - Maximum allowable junction temperature; constrains continuous power derating and layout thermal design. |
| Package | DO-214AC - Surface-mount plastic case with standardized footprint and thermal pad compatibility for reflow assembly. |
Pinout & Package
DO-214AC package: molded plastic body with two coplanar leads (cathode band marked), 77 mg weight, standard SMD outline per Vishay drawing 19628.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-side reference | Connected to ground or lower-potential node; enables reverse-bias operation when cathode is at higher potential. |
| Cathode | Zener breakdown terminal / clamping output | Connected to protected line; conducts during overvoltage to clamp voltage to VCL and shunt surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable IR ≤ 5 µA at VR and long-term reliability under thermal cycling and humidity exposure. |
| Fast response time | ≤1 ps rise time ensures clamping activation before sensitive downstream components experience overvoltage stress. |
| High surge power rating | 300 W PZSM supports IEC 61000-4-5 Level 4 (4 kV) surge compliance in properly designed layouts. |
| RoHS-compliant lead-free | Meets EU Directive 2002/95/EC and WEEE 2002/96/EC; compatible with Pb-free reflow profiles. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Clamping induced transients on 12 V battery-fed DC rails during load dump or alternator switching. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed across input terminals of DC-DC converters or microcontroller power inputs. Use Value: Limits voltage excursion to ≤25.6 V during 11.7 A surges, preventing latch-up or damage to 3.3 V/5 V logic supplies. | Use Scenario: Protecting LIN bus transceivers and sensor interfaces from ESD and ISO 7637-2 pulse 1/2a/5a events. IC Role / Device Role / Timing Role: Standby clamping diode connected between LIN line and ground, activated only during overvoltage faults. Use Value: Maintains signal integrity by clamping to 25.6 V within ≤1 ps, avoiding false triggering of fault detection circuits. |
| Telecom Interface Surge Protection | Renewable Energy Inverter DC Link |
Use Scenario: Safeguarding Ethernet PHY power pins and PoE injectors against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary clamping stage after gas discharge tube (GDT), absorbing residual energy post-GDT arc extinction. Use Value: Handles 300 W surge pulses without degradation, enabling compact two-stage protection architecture with <100 ns total response. | Use Scenario: Suppressing switching spikes on 400–800 V DC link capacitors in solar inverters during IGBT turn-off. IC Role / Device Role / Timing Role: Parallel-connected Zener array (multiple BZG04-15TR) providing localized clamping near high-di/dt nodes. Use Value: Delivers 25.6 V clamping at 11.7 A per device, reducing voltage overshoot by >35 % compared to TVS diodes with higher VCL. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener-based transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Higher clamping voltage (24.4 V @ 12.9 A), larger SMB package (DO-214AA), 600 W PPK rating | Optimized for higher-energy IEC 61000-4-5 testing; less precise voltage regulation due to wider VBR tolerance | Select SMBJ15A when surge energy exceeds 300 W but tighter VZ stability is not required. |
| P6SMB15A | Same DO-214AA package, identical 15 V VR, but 600 W PPK and 24.4 V VCL @ 12.9 A; higher IR (10 µA max) | Broader industrial qualification; longer qualification history in harsh environments | Choose P6SMB15A for legacy designs requiring second-source availability and extended temperature validation. |
Compared with SMBJ15A and P6SMB15A, the BZG04-15TR offers tighter VZ control (16.8 V min vs. 14.3 V min), lower clamping voltage (25.6 V vs. 24.4 V), and smaller DO-214AC footprint-making it preferable for space-constrained, precision-clamping applications where thermal resistance (RthJL = 25 K/W) and fast response are prioritized.
Availability
BZG04-15TR is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, and telecom interface surge protection requiring stable component supply and consistent surge performance across production batches.
Supply support for BZG04-15TR 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 manufacturer specializing in discrete semiconductors and passive components, with core expertise in reliability-critical power management and protection devices.
The BZG04-Series targets high-reliability transient voltage suppression in automotive, industrial, and telecom systems, emphasizing glass-passivated junction stability, fast response, and surge survivability under real-world pulse conditions.
FAQ
What is the maximum clamping voltage of the BZG04-15TR under standard surge conditions?
The BZG04-15TR has a maximum clamping voltage of 25.6 V when subjected to a 10/1000 µs surge waveform at 11.7 A peak pulse current (IPP). This value is measured per the test condition defined in Vishay Document 85594 Rev. 2.2 and represents the upper limit of voltage seen by protected circuitry during transient events. The BZG04-15TR maintains this clamping performance consistently due to its glass-passivated junction and low dynamic impedance.
Does the BZG04-15TR meet RoHS and lead-free assembly requirements?
Yes, the BZG04-15TR is a lead (Pb)-free component compliant with RoHS Directive 2002/95/EC and WEEE Directive 2002/96/EC. It is qualified for standard Pb-free reflow soldering processes and carries the "e3" marking per JEDEC standards. The BZG04-15TR's construction uses RoHS-compliant materials throughout, including terminations and molding compound, as confirmed in Vishay Document 85594.
What is the thermal resistance from junction to lead (RthJL) for the BZG04-15TR?
The thermal resistance from junction to lead (RthJL) for the BZG04-15TR is 25 K/W, as specified in the Absolute Maximum Ratings table of Vishay Document 85594. This low RthJL enables efficient heat transfer from the silicon die to the PCB copper through the leads, supporting reliable operation at 3 W continuous power dissipation when mounted on appropriate thermal land patterns. The BZG04-15TR's DO-214AC package geometry directly contributes to this thermal performance.
Can the BZG04-15TR be used in bidirectional transient protection configurations?
No, the BZG04-15TR is a unidirectional Zener diode intended for reverse-bias clamping only. It lacks symmetrical breakdown characteristics and is not rated for forward conduction beyond 1.2 V at 0.5 A. For bidirectional protection, two BZG04-15TR devices must be connected in series opposition, or a dedicated bidirectional TVS such as SMAJ15CA should be selected. The BZG04-15TR datasheet explicitly defines parameters only for reverse operation.
What is the typical junction capacitance of the BZG04-15TR at zero bias?
The typical junction capacitance (Cj) of the BZG04-15TR is 710 pF when measured at VR = 0 V and f = 1 MHz, as listed in the Electrical Characteristics table for the BZG04-15 variant. This value reflects the diode's inherent depletion capacitance in unbiased condition and influences high-frequency noise filtering capability. The BZG04-15TR's Cj remains stable across temperature due to its glass-passivated structure and is verified per test method in Vishay Document 85594.
BZG04-15TR 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)
BZG04-15TR FAQ
1.How can I place an order for BZG04-15TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZG04-15TR 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 BZG04-15TR reliable?
The price and inventory of BZG04-15TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZG04-15TR is usually 5 days.
3.What payment methods are accepted for BZG04-15TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZG04-15TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZG04-15TR?
BZG04-15TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZG04-15TR 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 BZG04-15TR?
For technical support, including BZG04-15TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZG04-15TR requirements.
6.How does Aetrix verify that BZG04-15TR is sourced from the original manufacturer or authorized distributors?
All BZG04-15TR 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 BZG04-15TR meets industry standards.
7.What is the process for return or replacement of BZG04-15TR?
All BZG04-15TR units undergo pre-shipment inspection (PSI). If there is an issue with BZG04-15TR, 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 BZG04-15TR part is unused and in its original packaging.
Return procedure for BZG04-15TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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