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NXP Semiconductors BZX284-B2V4,115
- Part No.:
- BZX284-B2V4,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-B2V4,115.pdf
- Description:
- DIODE ZENER 2.4V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:8,978
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Product details
Overview
BZX284-B2V4,115 from NXP Semiconductors is a ±2% tolerance, 2.4 V Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 400 mW total power dissipation at 25 °C ambient, with 5 mA test current, 275 Ω typical differential resistance, and −1.6 mV/K temperature coefficient-used for precision low-power voltage reference and overvoltage protection in sensor signal conditioning circuits.
For engineers reviewing the BZX284-B2V4,115 datasheet, BZX284-B2V4,115 pinout, BZX284-B2V4,115 application, or BZX284-B2V4,115 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (315 K/W), reverse leakage (50 μA at 1 V), junction temperature limit (150 °C), and SOD110 footprint compatibility with space-constrained PCB layouts.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across a load by conducting reverse current when input exceeds its nominal 2.4 V Zener breakdown threshold. It uses silicon planar epitaxial construction and is characterized at Tj = 25 °C with IZtest = 5 mA.
Its thermal performance is defined for mounting on a 11 × 25 × 1.6 mm PCB, delivering 315 K/W junction-to-ambient thermal resistance. The −1.6 mV/K temperature coefficient indicates slight negative drift with rising temperature, suitable for applications where moderate thermal stability suffices without active compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.35–2.45 V at IZ = 5 mA - defines precise regulation point for low-voltage biasing |
| Tolerance | ±2% - enables tighter voltage margin control than ±5% variants in critical references |
| Differential Resistance (rdif) | 275 Ω typ. at 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Ptot) | 400 mW max. at Tamb = 25 °C - sets maximum continuous reverse power handling |
| Reverse Leakage (IR) | 50 μA max. at VR = 1 V - impacts quiescent current in high-impedance reference nodes |
| Temperature Coefficient (SZ) | −1.6 mV/K at 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Junction Temperature (Tj) | 150 °C max. - constrains operating envelope under sustained power or elevated ambient conditions |
Pinout & Package
Two-terminal device in SOD110 ceramic surface-mount package: anode (pin 1) and cathode (pin 2), with cathode identified by a mark on the top surface. Dimensions: 2.10 × 1.40 × 1.60 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit common or lower-potential rail; establishes reference polarity |
| Cathode | Zener breakdown terminal / regulated output node | Connected to voltage node requiring stabilization; carries reverse current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter regulation accuracy than ±5% variants for precision analog references |
| 400 mW power rating | Supports moderate-current shunt regulation without external heat sinking |
| SOD110 ceramic package | Provides hermetic-like moisture resistance and stable parametric behavior vs. plastic SMD packages |
| Low 50 μA leakage at 1 V | Minimizes error current in high-impedance voltage divider or op-amp reference networks |
| −1.6 mV/K tempco | Offers predictable, moderate negative drift suitable for non-critical temperature environments |
Applications
| Industrial Sensor Signal Conditioning | USB Peripheral Power Rail Clamping |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 2.4 V bias to Wheatstone bridge. Use Value: Maintains measurement linearity by holding bridge voltage within ±2% despite supply ripple or drift. | Use Scenario: Protecting 3.3 V USB data lines from ESD-induced overvoltage transients. IC Role / Device Role / Timing Role: Low-capacitance (450 pF) clamping diode diverting surge current to ground. Use Value: Limits voltage excursion to ≤2.4 V + forward drop during fast transients, preserving PHY integrity. |
| Low-Power IoT Node Reference | Automotive Cabin Control Panel Biasing |
Use Scenario: Generating stable reference for ADC in battery-powered environmental monitor. IC Role / Device Role / Timing Role: Precision Zener reference feeding SAR ADC voltage reference input. Use Value: Delivers <2.5 mV total error (tolerance + tempco) over −40 to +85 °C, enabling 12-bit accuracy. | Use Scenario: Biasing LED backlight drivers in infotainment display control boards. IC Role / Device Role / Timing Role: Low-drift voltage clamp ensuring consistent LED current setpoint. Use Value: Compensates for 12 V rail variation and temperature drift, reducing luminance variance by >15%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | ±5% tolerance, 2.4 V nominal, SOT-23 package, 350 mW rating | Higher leakage (100 μA), larger footprint, less stable tempco (−2.0 mV/K) | Select when cost sensitivity outweighs precision; verify PCB pad compatibility |
| BZX384-B2V4 | Same ±2% tolerance and 2.4 V rating, but SOD-323 package, 300 mW rating | Smaller size (1.7 × 1.3 mm), lower power handling, higher thermal resistance (400 K/W) | Choose for ultra-dense layouts where 100 mW derating is acceptable |
Compared with BZX284-B2V4,115, MMBZ5221BS-7-F trades precision for cost and availability, while BZX384-B2V4 sacrifices power margin for miniaturization-neither is pin-compatible due to differing SOD110/SOT-23/SOD-323 footprints.
Availability
BZX284-B2V4,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB peripheral protection, low-power IoT reference designs, and automotive cabin control systems requiring stable component supply and long-term obsolescence management.
Supply support for BZX284-B2V4,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The BZX284 series belongs to NXP's discrete voltage regulator portfolio, designed specifically for low-power, high-stability Zener reference and clamping functions in space-constrained SMD applications.
FAQ
What is the Zener voltage tolerance of BZX284-B2V4,115?
The BZX284-B2V4,115 has a tight ±2% Zener voltage tolerance, meaning its nominal 2.4 V breakdown occurs between 2.35 V and 2.45 V when tested at 5 mA. This tolerance is confirmed in Table 1 of the NXP datasheet and distinguishes it from the ±5% BZX284-C series. The BZX284-B2V4,115 is specified for use in applications demanding higher regulation accuracy without trimming.
What package type does BZX284-B2V4,115 use?
BZX284-B2V4,115 uses the SOD110 very small ceramic surface-mount package, measuring 2.10 × 1.40 × 1.60 mm. Its outline is documented in the NXP datasheet Package Outline section (page 8), and the cathode is marked on the top surface. This ceramic construction provides superior moisture resistance and parametric stability compared to plastic equivalents like SOD-123.
What is the maximum power dissipation for BZX284-B2V4,115?
The BZX284-B2V4,115 has a maximum total power dissipation of 400 mW at an ambient temperature of 25 °C, as stated in the Limiting Values table (page 3). Derating is required above 25 °C ambient, governed by its 315 K/W junction-to-ambient thermal resistance. This rating supports continuous shunt regulation in low-power analog circuits without forced cooling.
How does the temperature coefficient of BZX284-B2V4,115 affect its performance?
The BZX284-B2V4,115 exhibits a temperature coefficient of −1.6 mV/K at 5 mA, indicating its Zener voltage decreases by approximately 1.6 mV per degree Celsius rise in junction temperature. This value is specified in Table 1 and applies across the typical operating range. Designers must account for this drift in applications requiring sub-10 mV stability over temperature, such as precision ADC references.
What is the reverse leakage current specification for BZX284-B2V4,115?
BZX284-B2V4,115 specifies a maximum reverse leakage current of 50 μA at VR = 1 V, as listed in the Electrical Characteristics table (page 3). This parameter is critical for high-impedance reference networks, where excessive leakage introduces offset error. The value is measured at Tj = 25 °C and remains stable across the device's qualified temperature range.
BZX284-B2V4,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-110
BZX284-B2V4,115 FAQ
1.How can I place an order for BZX284-B2V4,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-B2V4,115 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 BZX284-B2V4,115 reliable?
The price and inventory of BZX284-B2V4,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-B2V4,115 is usually 5 days.
3.What payment methods are accepted for BZX284-B2V4,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-B2V4,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-B2V4,115?
BZX284-B2V4,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-B2V4,115 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 BZX284-B2V4,115?
For technical support, including BZX284-B2V4,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-B2V4,115 requirements.
6.How does Aetrix verify that BZX284-B2V4,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-B2V4,115 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 BZX284-B2V4,115 meets industry standards.
7.What is the process for return or replacement of BZX284-B2V4,115?
All BZX284-B2V4,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-B2V4,115, 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 BZX284-B2V4,115 part is unused and in its original packaging.
Return procedure for BZX284-B2V4,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-B2V4,115 Tags
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