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Nexperia USA Inc. BZV49-C3V6,115
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- Part No.:
- BZV49-C3V6,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C3V6,115.pdf
- Description:
- DIODE ZENER 3.6V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:28
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Product details
Overview
BZV49-C3V6,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and stabilization in low-to-medium current circuits. It delivers a nominal working voltage of 3.6 V (±5%), with differential resistance ≤90 Ω at 5 mA test current, 1 W total power dissipation, and operates up to 150 °C junction temperature - commonly used in power supply feedback loops and analog sensor biasing.
For engineers reviewing the BZV49-C3V6,115 datasheet, BZV49-C3V6,115 pinout, BZV49-C3V6,115 application, or BZV49-C3V6,115 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (Rth(j-tp) = 15 K/W), reverse leakage (<5 μA at 1 V), non-repetitive surge capability (40 W), and SOT89 thermal pad layout compatibility.
Technical Context
This device functions as a two-terminal shunt voltage regulator, operating in reverse breakdown mode with controlled Zener knee characteristics. Its low dynamic impedance (≤90 Ω) and tight ±5% voltage tolerance ensure stable regulation under varying load and temperature conditions.
The SOT89 package integrates an exposed collector pad for enhanced thermal conduction, enabling 1 W continuous dissipation when mounted on a 2.5 cm² ceramic substrate. Temperature coefficient is −2.4 mV/K (typical), supporting predictable drift compensation in reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.4 V to 3.8 V at IZtest = 5 mA - defines regulated output voltage range under standard test conditions |
| Differential Resistance rdif | ≤90 Ω at IZtest = 5 mA - determines regulation stiffness and output voltage variation under load changes |
| Power Dissipation Ptot | 1 W at Tamb = 25 °C on ceramic substrate - sets maximum continuous thermal budget for PCB layout |
| Thermal Resistance Rth(j-tp) | 15 K/W - quantifies junction-to-tie-point thermal path efficiency for thermal design margining |
| Reverse Leakage IR | ≤5 μA at VR = 1 V - ensures minimal quiescent current in standby or low-power modes |
| Non-repetitive Peak Power | 40 W for tp = 100 μs - supports transient overvoltage clamping without failure |
| Junction Temperature Tj | −65 °C to +150 °C - enables operation in industrial and automotive under-hood environments |
Pinout & Package
SOT89 (SC-62) surface-mount plastic package with exposed thermal pad (pin 3), optimized for heat transfer in space-constrained applications. Dimensions: 4.6 × 2.6 × 1.6 mm (L × W × H), with 3 leads and standardized 3.0 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward current entry point; connected to lower-potential node in shunt regulator configuration |
| 2 | Cathode | Reverse-biased terminal where regulated voltage is referenced; connects to supply rail |
| 3 | Anode (thermal pad) | Electrically tied to pin 1; provides primary thermal conduction path to PCB copper pour |
Key Features
| Feature | Design Value |
|---|---|
| E24-standardized Zener voltages | 37 types from 2.4 V to 75 V - simplifies BOM consolidation across multiple voltage rails |
| ±5% voltage tolerance | Tighter than generic Zeners (often ±10%) - reduces need for post-regulation trimming in production |
| 1 W continuous power rating | Supports higher-current regulation than SOD-123 or SOT-23 Zeners - eliminates need for external pass transistors |
| Exposed thermal pad (pin 3) | Enables 15 K/W junction-to-tie-point thermal resistance - critical for reliability in sealed enclosures |
| Low temperature coefficient | −2.4 mV/K (typ.) - minimizes output drift over −40 °C to +125 °C ambient range |
Applications
| Power Supply Feedback | Sensor Bias Reference |
|---|---|
|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to optocoupler or TL431 input. Use Value: Maintains ±1% output regulation despite line/load transients due to low rdif and stable VZ. |
Use Scenario: Providing precise excitation voltage to resistive temperature detectors (RTDs) or bridge sensors. IC Role / Device Role / Timing Role: Low-noise, low-drift DC reference source replacing higher-cost bandgap ICs. Use Value: Enables <0.1% measurement accuracy over industrial temperature range without active compensation. |
| Overvoltage Clamp | Microcontroller Reset Circuit |
|
Use Scenario: Protecting I/O pins or ADC inputs from ESD or surge events exceeding system rail. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated above 3.6 V threshold. Use Value: Absorbs 40 W non-repetitive surges (100 μs) while limiting clamped voltage to ≤4.2 V. |
Use Scenario: Generating clean, monotonic reset signal during power-up and brownout conditions. IC Role / Device Role / Timing Role: Threshold detector feeding RC-delayed Schmitt trigger or dedicated reset IC. Use Value: Ensures reliable reset assertion down to 2.8 V supply with predictable hysteresis via series resistor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V6 | Same 3.6 V Zener voltage, but SOT23 package (0.35 W Ptot, Rth(j-a) = 300 K/W) | Limited to low-power signal-level regulation; unsuitable for >100 mA load currents | Select when board space is critical and thermal load is <150 mW |
| MMSZ4685 | 3.6 V Zener, SOD-123 package, 500 mW Ptot, rdif ≤100 Ω, IR ≤10 μA at 1 V | Higher leakage and lower surge rating (25 W) - less robust in noisy industrial environments | Select for cost-sensitive consumer designs where 1 W dissipation is not required |
Compared with BZX84-C3V6 and MMSZ4685, the BZV49-C3V6,115 offers 2.8× higher continuous power handling and 2.7× better thermal resistance, making it uniquely suitable for high-reliability regulation in thermally constrained industrial power stages.
Availability
BZV49-C3V6,115 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and embedded reset circuitry requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZV49-C3V6,115 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
Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BZV49 series belongs to Nexperia's precision Zener regulator portfolio, engineered for high-stability voltage reference and clamping in space- and thermally-constrained SMD applications.
FAQ
What is the maximum continuous reverse current this diode can regulate at 3.6 V?
The BZV49-C3V6,115 supports up to 250 mA continuous forward current, but as a Zener regulator, its practical reverse regulation current is limited by power dissipation. At 3.6 V, maximum continuous Zener current is 277 mA (1 W ÷ 3.6 V), though derating to 200 mA is recommended for 150 °C junction temperature margin.
Can this device replace a 3.3 V Zener in an existing design?
No - the BZV49-C3V6,115 has a nominal Zener voltage of 3.6 V (min 3.4 V, max 3.8 V), which exceeds the 3.3 V specification. Substituting it would raise regulated voltage by ≥0.3 V, potentially violating downstream IC voltage tolerances. Use BZV49-C3V3 (3.3 V) instead.
How does the thermal pad (pin 3) affect PCB layout requirements?
Pin 3 is electrically connected to the anode and must be soldered to a minimum 100 mm² copper pour with ≥4 thermal vias (0.3 mm diameter) to an internal ground plane. Omitting this compromises thermal resistance, reducing safe operating current by up to 60% and risking premature thermal runaway.
Is this diode suitable for use in automotive engine control units?
Yes - its −65 °C to +150 °C operating range, AEC-Q101 pre-qualification (per Nexperia's BZV49 family qualification report), and 40 W surge rating meet under-hood requirements. However, final qualification requires validation per ISO 16750-2 for electrical transients and ISO 16750-4 for mechanical vibration.
BZV49-C3V6,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZV49
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BZV49-C3V6,115 FAQ
1.How can I place an order for BZV49-C3V6,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C3V6,115 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 BZV49-C3V6,115 reliable?
The price and inventory of BZV49-C3V6,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C3V6,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C3V6,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C3V6,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C3V6,115?
BZV49-C3V6,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C3V6,115 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 BZV49-C3V6,115?
For technical support, including BZV49-C3V6,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C3V6,115 requirements.
6.How does Aetrix verify that BZV49-C3V6,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C3V6,115 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 BZV49-C3V6,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C3V6,115?
All BZV49-C3V6,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C3V6,115, 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 BZV49-C3V6,115 part is unused and in its original packaging.
Return procedure for BZV49-C3V6,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV49-C3V6,115 Tags
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MMBZ5240B-7-F
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MMSZ5231B-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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