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NXP Semiconductors BZX284-C3V3,115
- Part No.:
- BZX284-C3V3,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C3V3,115.pdf
- Description:
- DIODE ZENER 3.3V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:2,045
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Product details
Overview
BZX284-C3V3,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 3.3 V nominal working voltage at 5 mA test current, 400 mW total power dissipation, and 350 Ω typical differential resistance - used for low-power voltage reference and overvoltage protection in compact DC power rails.
For engineers reviewing the BZX284-C3V3,115 datasheet, BZX284-C3V3,115 pinout, BZX284-C3V3,115 application, or BZX284-C3V3,115 equivalent, key selection criteria include its 3.3 V regulation tolerance, 5 μA reverse leakage at 1 V, −2.4 mV/K temperature coefficient, SOD110 footprint compatibility, and suitability for space-constrained consumer and industrial power management circuits.
Technical Context
This device operates as a two-terminal passive voltage reference, relying on controlled Zener breakdown in silicon to maintain stable reverse-bias voltage across its cathode-anode terminals. Its regulation performance is defined at 5 mA test current with 3.23–3.37 V min/max range and exhibits a negative temperature coefficient of −2.4 mV/K, indicating decreasing Zener voltage with rising junction temperature.
The SOD110 package enables surface-mount integration with minimal board area (1.9 × 1.4 mm footprint), while thermal resistance of 315 K/W requires attention to PCB copper area and ambient conditions to sustain rated power. Reverse leakage is tightly specified at 5 μA @ VR = 1 V, supporting precision biasing in low-current analog circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.3 V at IZ = 5 mA - defines stable regulation point for low-voltage reference applications |
| Voltage Tolerance | ±5% - yields 3.1–3.5 V operating window under standard test conditions |
| Differential Resistance | 350 Ω typ. at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage Current | 5 μA max. at VR = 1 V - ensures minimal quiescent current draw in standby mode |
| Power Dissipation | 400 mW max. at Tamb = 25 °C - sets maximum continuous power handling before thermal derating |
| Temperature Coefficient | −2.4 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Package | SOD110 - ultra-compact ceramic SMD outline (1.9 × 1.4 × 0.9 mm) with cathode marking |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode identified by a visible mark on the top surface. The device has no internal circuitry beyond the Zener junction; terminals are unidirectional anode (pin 1) and cathode (pin 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node; reverse bias applied between cathode and anode to activate regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Marked side; supplies regulated 3.3 V when reverse biased above knee voltage with current limiting |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD packaging | SOD110 footprint (1.9 × 1.4 mm) enables high-density PCB layouts in portable electronics |
| Precision voltage regulation | 3.3 V ±5% tolerance supports stable biasing for LDOs, ADC references, and comparator thresholds |
| Controlled thermal drift | −2.4 mV/K coefficient allows predictable compensation in temperature-sensitive analog stages |
| Low leakage performance | 5 μA reverse current at 1 V enables use in battery-powered circuits with microamp-level sleep budgets |
Applications
| USB Peripheral Power Clamp | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Clamping 3.3 V USB data line voltage during ESD transients or supply overshoot. IC Role / Device Role / Timing Role: Zener clamp protecting downstream PHY interface from overvoltage damage. Use Value: 3.3 V regulation threshold aligns with USB 3.3 V logic levels; 400 mW rating absorbs short-duration surges without failure. | Use Scenario: Generating a clean reset signal for ARM Cortex-M0+ microcontrollers during power-up. IC Role / Device Role / Timing Role: Voltage reference element in RC-based reset generator with hysteresis. Use Value: Tight 3.3 V ±5% tolerance ensures deterministic reset assertion below MCU VDD minimum, preventing brown-out lockup. |
| IoT Sensor Bias Reference | Industrial Signal Conditioning |
Use Scenario: Providing stable 3.3 V bias to MEMS accelerometer analog front-end in battery-operated nodes. IC Role / Device Role / Timing Role: Low-drift voltage reference for sensor excitation and ADC reference scaling. Use Value: −2.4 mV/K tempco minimizes offset drift across −40°C to +85°C operating range; 5 μA leakage preserves battery life. | Use Scenario: Regulating auxiliary 3.3 V rail for isolated RS-485 transceiver bias in factory automation PLC modules. IC Role / Device Role / Timing Role: Secondary voltage clamp stabilizing local supply against switching noise from nearby DC-DC converters. Use Value: 350 Ω differential resistance maintains regulation accuracy despite ripple-induced current variation up to ±1 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | 3.3 V ±5%, SOT-23 package, 350 mW rating, 5 μA IR @ 1 V | Larger footprint (2.9 × 1.3 mm vs. 1.9 × 1.4 mm); higher thermal resistance | Preferred where SOT-23 handling infrastructure exists and board space permits |
| BZX84-C3V3 | 3.3 V ±5%, SOT-23 package, 300 mW rating, 5 μA IR @ 1 V, −2.5 mV/K tempco | Lower power rating limits surge handling; identical regulation spec but different thermal profile | Selected when cost optimization outweighs 100 mW power margin requirement |
Compared with BZX284-C3V3,115, MMBZ5226BS-7-F offers equivalent electrical specs in a more widely supported package but sacrifices 25% board area efficiency, while BZX84-C3V3 reduces power capability by 25% and exhibits slightly higher thermal drift - making BZX284-C3V3,115 optimal for miniaturized, thermally constrained designs requiring full 400 mW headroom.
Availability
BZX284-C3V3,115 is available at Aetrix Electronics and suitable for USB peripheral protection, microcontroller reset generation, IoT sensor biasing, and industrial signal conditioning requiring stable component supply and long-term obsolescence management.
Supply support for BZX284-C3V3,115 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 markets.
The BZX284 series belongs to NXP's discrete voltage regulator portfolio, engineered for high-reliability, low-power Zener reference applications in space-constrained SMD designs where stability, leakage control, and thermal predictability are critical.
FAQ
What is the nominal Zener voltage and tolerance of the BZX284-C3V3,115?
The BZX284-C3V3,115 has a nominal Zener voltage of 3.3 V with a ±5% tolerance, resulting in a guaranteed regulation range of 3.1 V to 3.5 V when tested at 5 mA reverse current and 25 °C junction temperature. This tolerance is confirmed in Table 1 of the NXP datasheet and applies specifically to the "C" series variant of the BZX284 family.
What package type does the BZX284-C3V3,115 use and what are its dimensions?
The BZX284-C3V3,115 uses the SOD110 ceramic surface-mount package, measuring 1.90 mm × 1.40 mm × 0.90 mm with a cathode identification mark. Its outline is documented in the "PACKAGE OUTLINE" section (page 8) of the NXP datasheet, and it is distinct from plastic SMD packages due to its hermetic ceramic construction and thermal characteristics.
What is the maximum power dissipation rating for the BZX284-C3V3,115 and under what conditions?
The BZX284-C3V3,115 has a maximum total power dissipation of 400 mW at an ambient temperature of 25 °C, as specified in the "LIMITING VALUES" table (page 3). This rating assumes mounting on a standard 11 × 25 × 1.6 mm PCB; derating is required above 25 °C using the 315 K/W junction-to-ambient thermal resistance.
How does the temperature coefficient of the BZX284-C3V3,115 affect its regulation accuracy?
The BZX284-C3V3,115 has a temperature coefficient of −2.4 mV/K at 5 mA test current, meaning its Zener voltage decreases by approximately 2.4 mV per degree Celsius increase in junction temperature. This value is measured and tabulated in Table 1 and directly impacts long-term stability in environments with wide thermal swings, such as industrial enclosures or automotive under-hood locations.
What is the reverse leakage current specification for the BZX284-C3V3,115 and at what test condition?
The BZX284-C3V3,115 specifies a maximum reverse leakage current of 5 μA at VR = 1 V, as listed in the "ELECTRICAL CHARACTERISTICS" table (page 3) of the NXP datasheet. This parameter is critical for low-power applications like battery-backed sensors, where even microamp-level leakage can significantly impact operational lifetime.
BZX284-C3V3,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-C3V3,115 FAQ
1.How can I place an order for BZX284-C3V3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C3V3,115 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-C3V3,115 reliable?
The price and inventory of BZX284-C3V3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C3V3,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C3V3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C3V3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C3V3,115?
BZX284-C3V3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C3V3,115 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-C3V3,115?
For technical support, including BZX284-C3V3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C3V3,115 requirements.
6.How does Aetrix verify that BZX284-C3V3,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C3V3,115 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-C3V3,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C3V3,115?
All BZX284-C3V3,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C3V3,115, 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-C3V3,115 part is unused and in its original packaging.
Return procedure for BZX284-C3V3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C3V3,115 Tags
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BZT52C5V6T-7
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MM5Z5V1ST1G
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