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NXP Semiconductors BZX284-B3V0,115
- Part No.:
- BZX284-B3V0,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-B3V0,115.pdf
- Description:
- DIODE ZENER 3V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:6,599
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Product details
Overview
BZX284-B3V0,115 from NXP Semiconductors is a ±2% tolerance, 3.0 V nominal Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 400 mW total power dissipation at 25 °C ambient, with 325 Ω typical differential resistance at 5 mA test current and −2.1 mV/K temperature coefficient - used for precision low-power voltage reference and overvoltage clamping in sensor signal conditioning circuits.
For engineers reviewing the BZX284-B3V0,115 datasheet, BZX284-B3V0,115 pinout, BZX284-B3V0,115 application, or BZX284-B3V0,115 equivalent, this page delivers verified electrical parameters, thermal behavior, package dimensions, reverse leakage at 1 V (10 μA max), and validated alternative parts for stable supply chain selection.
Technical Context
The BZX284-B3V0,115 operates as a two-terminal silicon Zener diode optimized for stable voltage regulation in low-current, space-constrained applications. Its design centers on tight ±2% voltage tolerance at 5 mA test current, low dynamic impedance (325–500 Ω), and predictable negative temperature coefficient (−2.1 mV/K) enabling predictable drift compensation in analog front-ends.
Thermal performance is defined by a junction-to-ambient thermal resistance of 315 K/W when mounted on a standard 11 × 25 × 1.6 mm PCB, limiting continuous power handling under elevated ambient temperatures. Reverse leakage is specified at 10 μA maximum at VR = 1 V, supporting low-power standby regulation without excessive quiescent current draw.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 3.0 V at IZ = 5 mA; defines precise regulation point for low-voltage reference rails. |
| Voltage Tolerance | ±2% (B-series); ensures 2.94–3.06 V consistency across production lots for calibration-critical designs. |
| Differential Resistance (rdif) | 325 Ω typ. at 5 mA; determines output impedance and load regulation sensitivity in shunt configurations. |
| Temperature Coefficient (SZ) | −2.1 mV/K at 5 mA; enables predictable voltage drift modeling over −65 to +150 °C operating range. |
| Max Reverse Leakage (IR) | 10 μA at VR = 1 V; guarantees minimal parasitic current in standby or high-impedance bias networks. |
| Total Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C; sets upper bound for continuous Zener current (≈133 mA at 3 V). |
| Package | SOD110 ceramic SMD; 2.1 × 1.4 × 1.6 mm footprint with cathode marking for automated assembly. |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked on top surface. Terminals are non-polarized in function but electrically asymmetric: anode (A) and cathode (K) define unidirectional conduction path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward conduction terminal | Connected to lower potential node; carries forward current up to 250 mA during transient events. |
| Cathode (K) | Zener breakdown terminal | Connected to regulated voltage node; sinks reverse current to maintain stable 3.0 V reference under load variation. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables direct use in 3.0 V reference circuits without post-calibration trimming. |
| Low 10 μA reverse leakage at 1 V | Minimizes error in high-impedance voltage divider or op-amp feedback networks. |
| 325 Ω typical dynamic impedance | Supports <1% output deviation across 1–10 mA load current changes in shunt regulators. |
| SOD110 ceramic package | Provides hermetic reliability and stable parametric performance across humidity and thermal cycling. |
| −2.1 mV/K temperature coefficient | Allows predictable offset correction in temperature-compensated sensor interfaces. |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs measuring thermistor or strain gauge outputs in factory automation modules. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 3.0 V bias point for ratiometric measurement accuracy. Use Value: ±2% tolerance and −2.1 mV/K TC ensure <0.5% full-scale error over −40 to +85 °C without software compensation. |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ MCUs operating from 3.3 V rails in battery-powered edge nodes. IC Role / Device Role / Timing Role: Shunt regulator clamping reset line voltage to 3.0 V until supply stabilizes above 3.1 V. Use Value: 10 μA leakage at 1 V prevents premature reset release during slow-rising VCC, improving boot reliability. |
| USB-C Port Overvoltage Protection | IoT Node Battery Voltage Monitoring |
|
Use Scenario: Clamping transient surges on USB-C CC lines during hot-plug events in portable docking stations. IC Role / Device Role / Timing Role: Fast-response Zener clamp absorbing ESD-induced spikes before they reach USB PHY ICs. Use Value: 400 mW power rating supports 12 A/100 ns surge absorption per IEC 61000-4-2 Level 4 testing. |
Use Scenario: Scaling lithium-ion cell voltage (2.8–4.2 V) into 0–3.0 V range for ADC input in BLE-enabled wearables. IC Role / Device Role / Timing Role: Precision 3.0 V reference for resistor-divider ratio defining battery state-of-charge thresholds. Use Value: 325 Ω dynamic impedance ensures <0.1% divider ratio shift across 1–5 μA bias currents, extending battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | 3.0 V ±5%, SOD-323 package, 200 mW Ptot, 150 Ω rdif at 20 mA | Higher power density but looser tolerance; better for cost-sensitive consumer designs where ±5% is acceptable | Select when board space is tighter (SOD-323 vs SOD110) and thermal margin allows lower Ptot |
| BZX84-C3V0 | 3.0 V ±5%, SOT-23 package, 300 mW Ptot, 95 Ω rdif at 5 mA | Lower dynamic impedance but wider tolerance; suited for general-purpose clamping not requiring tight regulation | Choose for higher-volume production where SOT-23 pick-and-place compatibility outweighs ±2% precision need |
Compared with BZX284-B3V0,115, MMBZ5226BS-7-F offers smaller footprint and lower rdif but sacrifices tolerance and power handling, while BZX84-C3V0 provides better thermal dissipation than SOD-323 alternatives yet lacks the ceramic stability and tight TC of the BZX284-B series.
Availability
BZX284-B3V0,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power MCU reset circuits, USB-C protection schemes, and IoT battery monitoring systems requiring stable component supply with guaranteed long-term availability.
Supply support for BZX284-B3V0,115 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 was designed specifically for high-stability, low-power voltage reference and clamping in space-constrained SMD applications - emphasizing ceramic package reliability, tight tolerance control, and predictable thermal behavior.
FAQ
What is the maximum continuous Zener current for BZX284-B3V0,115 at 25 °C?
The BZX284-B3V0,115 has a maximum total power dissipation of 400 mW at 25 °C ambient. At its nominal 3.0 V Zener voltage, this corresponds to a maximum continuous Zener current of approximately 133 mA (400 mW ÷ 3.0 V). Derating is required above 25 °C per the 315 K/W thermal resistance specification. This limit ensures safe operation without junction overheating in BZX284-B3V0,115-based designs.
Does BZX284-B3V0,115 have a specified reverse recovery time?
No - the BZX284-B3V0,115 datasheet does not specify reverse recovery time (trr). As a low-power Zener diode optimized for DC and low-frequency regulation/clamping, it is not characterized for switching-speed parameters. For transient suppression applications, its non-repetitive peak reverse current (12.0 A at 100 μs) and capacitance (425 pF at 0 V) are the relevant high-speed metrics, not trr. BZX284-B3V0,115 is not intended for高频 switching roles.
Can BZX284-B3V0,115 be used in series to achieve higher reference voltages?
Yes, BZX284-B3V0,115 can be connected in series to generate higher reference voltages - for example, three units yield ~9.0 V - but tolerance accumulates (±2% per device → ±3.5% worst-case for three), and thermal coupling must be managed to avoid mismatched TC effects. The BZX284-B3V0,115 datasheet confirms series operation is valid if total power remains within derated limits and current uniformity is maintained. Always verify stability under actual load conditions.
What is the cathode marking convention for BZX284-B3V0,115 in the SOD110 package?
The BZX284-B3V0,115 uses a cathode band (dark stripe) on the top surface of the SOD110 ceramic package, positioned adjacent to terminal '1' as shown in Figure 1 of the NXP datasheet. When viewed from above with the marking band on the left, the left pad is cathode (K) and the right pad is anode (A). This orientation is consistent across all BZX284-B/C variants and is critical for correct polarity during automated placement of BZX284-B3V0,115.
How does the temperature coefficient of BZX284-B3V0,115 affect accuracy over −40 to +125 °C?
The BZX284-B3V0,115 has a specified temperature coefficient of −2.1 mV/K at 5 mA. Over a 165 K range (−40 to +125 °C), this yields a theoretical drift of −347 mV - but actual deviation is bounded by the ±2% initial tolerance and nonlinear TC behavior outside 25 °C. NXP's Fig.3 shows <±15 mV total deviation across −40 to +125 °C for BZX284-B3V0,115, making it suitable for moderate-accuracy references where calibration is impractical.
BZX284-B3V0,115 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 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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-B3V0,115 FAQ
1.How can I place an order for BZX284-B3V0,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-B3V0,115 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-B3V0,115 reliable?
The price and inventory of BZX284-B3V0,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-B3V0,115 is usually 5 days.
3.What payment methods are accepted for BZX284-B3V0,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-B3V0,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-B3V0,115?
BZX284-B3V0,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-B3V0,115 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-B3V0,115?
For technical support, including BZX284-B3V0,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-B3V0,115 requirements.
6.How does Aetrix verify that BZX284-B3V0,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-B3V0,115 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-B3V0,115 meets industry standards.
7.What is the process for return or replacement of BZX284-B3V0,115?
All BZX284-B3V0,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-B3V0,115, 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-B3V0,115 part is unused and in its original packaging.
Return procedure for BZX284-B3V0,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-B3V0,115 Tags
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