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NXP Semiconductors BZX284-C11,115
- Part No.:
- BZX284-C11,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C11,115.pdf
- Description:
- DIODE ZENER 11V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:2,468
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Product details
Overview
BZX284-C11,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in SOD110 ceramic SMD package, rated for 11 V nominal working voltage at 5 mA test current, 400 mW total power dissipation, and 100 nA reverse leakage at 8 V, used for low-power voltage reference and overvoltage protection in space-constrained consumer and industrial PCBs.
For engineers reviewing the BZX284-C11,115 datasheet, BZX284-C11,115 pinout, BZX284-C11,115 application, or BZX284-C11,115 equivalent, key selection criteria include its ±5% voltage tolerance, 25 Ω typical differential resistance at 5 mA, −2 mV/K temperature coefficient, SOD110 footprint compatibility, and 100 nA IR at VR = 8 V - all critical for stable biasing and precision clamping in battery-powered and signal-conditioning circuits.
Technical Context
The BZX284-C11,115 operates as a two-terminal silicon Zener diode with controlled reverse breakdown behavior, optimized for regulation in low-current (<250 mA forward, <12 A non-repetitive surge) applications. Its junction temperature range spans −65 °C to +150 °C, and thermal resistance from junction-to-ambient is 315 K/W when mounted on a standard 11 × 25 × 1.6 mm PCB.
It belongs to the BZX284-C series (±5% tolerance), distinct from the tighter-tolerance BZX284-B variants. Electrical characteristics are specified at Tj = 25 °C, with differential resistance of 25–150 Ω (typ/max) and temperature coefficient of −2 mV/K at IZ = 5 mA - enabling predictable drift compensation in analog reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 11 V at IZ = 5 mA - defines stable regulation point for biasing or clamping circuits |
| Voltage Tolerance | ±5% - allows 10.4 V to 11.6 V variation; suitable for non-critical reference applications |
| Differential Resistance (rdif) | 25 Ω typ., 150 Ω max. at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage Current (IR) | 100 nA at VR = 8 V - ensures minimal quiescent power loss in high-impedance sensing nodes |
| Total Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - sets maximum continuous power handling before thermal derating |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - enables use as low-drop rectifier or ESD clamp in bidirectional protection |
| Package | SOD110 ceramic SMD - 1.9 × 1.4 × 0.9 mm footprint ideal for dense portable PCB layouts |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked by a band on one end. Terminals are unidirectional: anode (A) and cathode (K). No internal bonding wires or multi-pin configuration - only two solder pads required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive terminal in forward bias; connected to lower-potential node in Zener operation | Reference ground or return path during regulation; must handle up to 250 mA continuous forward current |
| Cathode (K) | Negative terminal in forward bias; higher-potential node during Zener breakdown | Connected to regulated voltage rail; carries reverse current during clamping; marked with band on package top view |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD110 package | 1.9 × 1.4 × 0.9 mm ceramic body enables placement in tight spaces without thermal vias or heatsinking |
| Stable ±5% voltage tolerance | Guarantees 10.4–11.6 V regulation window across production lots - sufficient for cost-sensitive power rail monitoring |
| Low reverse leakage (100 nA) | Minimizes standby current draw in battery-backed systems and high-impedance sensor interfaces |
| Controlled temperature coefficient | −2 mV/K at 5 mA enables predictable drift compensation in ambient-temperature-varying environments |
| 400 mW power rating | Supports sustained regulation under moderate load conditions without external derating circuitry |
Applications
| Power Supply Rail Clamping | Microcontroller I/O Protection |
|---|---|
|
Use Scenario: Clamp 12 V supply rail against transient spikes in automotive body control modules. IC Role / Device Role / Timing Role: Zener clamping element placed between rail and ground to shunt excess energy above 11 V. Use Value: Prevents overvoltage damage to downstream logic with 100 nA leakage ensuring no impact on quiescent current budget. |
Use Scenario: Protect 3.3 V MCU GPIO pins from ESD and accidental 5 V misconnection. IC Role / Device Role / Timing Role: Bidirectional clamp using BZX284-C11,115 in series with current-limiting resistor to limit pin voltage to ±11 V. Use Value: Leverages 0.9 V forward drop and 11 V reverse breakdown to confine voltage excursions within safe MCU limits. |
| Reference Voltage Source | Current-Limited Bias Generator |
|
Use Scenario: Provide stable 11 V reference for op-amp comparator threshold in industrial sensor interface. IC Role / Device Role / Timing Role: Zener diode biased at 5 mA via series resistor to generate fixed reference voltage. Use Value: 25 Ω typical rdif ensures <10 mV shift under ±1 mA load variation - adequate for 1% accuracy thresholds. |
Use Scenario: Generate precise bias current for JFET amplifier stage in audio preamplifier PCB. IC Role / Device Role / Timing Role: Zener-regulated current source using BZX284-C11,115 and emitter resistor to set gate bias. Use Value: −2 mV/K tempco aligns with JFET's VGS drift, reducing net temperature-induced offset in gain-setting network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5240B | 10 V nominal, ±5%, SOT-23 package, 350 mW rating, 100 nA IR at 7 V | Lower voltage and smaller thermal mass; less stable under pulsed loads due to higher rdif (30 Ω typ.) | Select when 10 V reference suffices and SOT-23 board real estate is constrained |
| Vishay BZX84-C11 | 11 V nominal, ±5%, SOT-23 package, 300 mW rating, 100 nA IR at 8 V, 40 Ω rdif typ. | Lower power rating and higher differential resistance reduce regulation accuracy under varying load | Choose for legacy SOT-23 compatibility where 400 mW headroom is not required |
Compared with MMBZ5240B and BZX84-C11, the BZX284-C11,115 offers superior thermal stability (315 K/W vs. ~400 K/W for SOT-23), tighter rdif (25 Ω vs. ≥30 Ω), and higher Ptot (400 mW), making it preferred for compact yet thermally demanding regulation tasks where ceramic SOD110 mounting is feasible.
Availability
BZX284-C11,115 is available at Aetrix Electronics and suitable for power supply clamping, microcontroller I/O protection, and reference voltage generation requiring stable component supply across consumer electronics, industrial controls, and automotive subsystems.
Supply support for BZX284-C11,115 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 was designed for low-power, space-efficient voltage regulation and protection in SMD-based consumer and industrial electronics - emphasizing reliability, tight parametric consistency, and ceramic-package thermal performance.
FAQ
What is the nominal Zener voltage and test condition for BZX284-C11,115?
The BZX284-C11,115 has a nominal Zener voltage of 11 V measured at a test current (IZ) of 5 mA, with a guaranteed range of 10.4 V to 11.6 V due to its ±5% tolerance. This value is specified at Tj = 25 °C and forms the basis for regulation accuracy in bias and clamping circuits using the BZX284-C11,115.
What package type does BZX284-C11,115 use and what are its dimensions?
The BZX284-C11,115 uses the SOD110 ceramic surface-mount package, measuring 1.90 mm × 1.40 mm × 0.90 mm with a cathode band marking. Its small footprint and ceramic construction provide excellent thermal stability and suitability for high-density PCB layouts where plastic packages may exhibit greater drift or moisture sensitivity.
How much reverse leakage current does BZX284-C11,115 exhibit at 8 V?
The BZX284-C11,115 exhibits a maximum reverse leakage current (IR) of 100 nA when reverse-biased at 8 V, per the manufacturer's electrical characteristics table. This low leakage supports ultra-low-power applications such as battery-operated sensors and always-on monitoring circuits where the BZX284-C11,115 serves as a precision clamp or reference element.
What is the differential resistance of BZX284-C11,115 and why does it matter?
The BZX284-C11,115 has a typical differential resistance (rdif) of 25 Ω at IZ = 5 mA, with a maximum of 150 Ω. This parameter directly affects regulation accuracy: lower rdif means smaller output voltage change under varying load current, making the BZX284-C11,115 suitable for applications requiring stable voltage references despite modest current fluctuations.
Can BZX284-C11,115 be used in forward-bias applications?
Yes, the BZX284-C11,115 can operate in forward bias with a typical forward voltage (VF) of 0.9 V at 10 mA and 1.1 V at 100 mA. This enables dual-use roles - such as ESD protection clamps or low-drop rectifiers - alongside its primary Zener regulation function, expanding design flexibility without adding discrete components to the BZX284-C11,115 circuit.
BZX284-C11,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-C11,115 FAQ
1.How can I place an order for BZX284-C11,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C11,115 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-C11,115 reliable?
The price and inventory of BZX284-C11,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C11,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C11,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C11,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C11,115?
BZX284-C11,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C11,115 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-C11,115?
For technical support, including BZX284-C11,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C11,115 requirements.
6.How does Aetrix verify that BZX284-C11,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C11,115 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-C11,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C11,115?
All BZX284-C11,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C11,115, 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-C11,115 part is unused and in its original packaging.
Return procedure for BZX284-C11,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C11,115 Tags
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