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NXP Semiconductors BZX284-C9V1,115
- Part No.:
- BZX284-C9V1,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C9V1,115.pdf
- Description:
- DIODE ZENER 9.1V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:6,689
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Product details
Overview
BZX284-C9V1,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 9.1 V nominal working voltage at 5 mA test current, 400 mW total power dissipation, and 500 nA reverse leakage at 6 V reverse bias. It serves as a precision low-power reference or clamp in power supply feedback paths, sensor biasing circuits, and overvoltage protection stages.
For engineers reviewing the BZX284-C9V1,115 datasheet, BZX284-C9V1,115 pinout, BZX284-C9V1,115 application, or BZX284-C9V1,115 equivalent, key selection criteria include its ±5% voltage tolerance, 20–100 Ω differential resistance at 5 mA, +5.5 mV/K temperature coefficient, SOD110 footprint compatibility, and suitability for space-constrained 3.3 V/5 V rail regulation.
Technical Context
The BZX284-C9V1,115 operates as a two-terminal silicon Zener diode optimized for stable reverse-biased breakdown regulation. Its junction temperature range spans −65 °C to +150 °C, with thermal resistance from junction-to-ambient of 315 K/W when mounted on a standard 11 × 25 × 1.6 mm PCB.
It exhibits a typical differential resistance of 20 Ω at 1 mA and 100 Ω at 5 mA, and a positive temperature coefficient of +5.5 mV/K at IZ = 5 mA-enabling predictable drift compensation in temperature-sensitive references. Reverse leakage remains tightly controlled at 500 nA @ VR = 6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 9.1 V at IZ = 5 mA - defines regulation setpoint for 3.3 V/5 V auxiliary rail clamping |
| Voltage Tolerance | ±5% - supports cost-sensitive designs where tighter tolerance is not required |
| Differential Resistance (rdiff) | 20 Ω (min) / 100 Ω (max) at IZ = 5 mA - determines load regulation error under varying current |
| Temperature Coefficient (SZ) | +5.5 mV/K at IZ = 5 mA - enables predictable thermal drift modeling in reference circuits |
| Reverse Leakage Current (IR) | 500 nA at VR = 6 V - ensures minimal quiescent power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - sets maximum continuous DC power handling in SOD110 package |
| Junction Temperature (Tj) | −65 °C to +150 °C - supports operation in industrial and automotive under-hood environments |
Pinout & Package
SOD110 is a very small ceramic surface-mount package with two terminals: anode (1) and cathode (2), marked by a cathode band on the top surface. The package measures 2.10 × 1.40 × 1.60 mm (L × W × H) with 0.1 mm max terminal thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Forward conduction path / reference ground node | Connected to circuit ground or lower-potential rail during Zener operation |
| Cathode (Terminal 2) | Zener breakdown terminal / regulated output node | Provides stable 9.1 V reference relative to anode; polarity critical for correct biasing |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables cost-effective voltage clamping without trimming in non-critical analog monitoring paths |
| 400 mW power rating in SOD110 | Supports higher-current regulation than smaller packages (e.g., SOD323) while maintaining ultra-compact footprint |
| +5.5 mV/K temperature coefficient | Allows predictable thermal drift compensation when paired with negative-TC components in reference dividers |
| 500 nA reverse leakage @ 6 V | Minimizes error in high-impedance feedback networks (e.g., op-amp biasing, ADC reference dividers) |
| Ceramic SOD110 construction | Provides superior moisture resistance and long-term stability vs. plastic-packaged Zeners in humid environments |
Applications
| Power Supply Feedback Clamping | Sensor Bias Voltage Reference |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side regulation loops. IC Role / Device Role / Timing Role: Zener clamp providing fixed 9.1 V reference to optocoupler input or TL431 cathode. Use Value: Maintains ±5% output voltage accuracy across line/load/temperature without external trimming. |
Use Scenario: Generating stable bias for analog sensors (e.g., RTDs, bridge transducers) in data acquisition front-ends. IC Role / Device Role / Timing Role: Low-leakage voltage reference source for excitation current generation or ratiometric scaling. Use Value: 500 nA leakage prevents loading errors in high-impedance sensor interfaces (<1 MΩ source impedance). |
| Overvoltage Protection Limiter | Microcontroller I/O Clamp |
|
Use Scenario: Protecting downstream analog inputs from transient overvoltage events exceeding 9.1 V. IC Role / Device Role / Timing Role: Fast-acting shunt limiter diverting surge current away from sensitive nodes. Use Value: 12 A non-repetitive peak reverse current rating handles short-duration ESD or inductive kick energy. |
Use Scenario: Preventing GPIO damage from accidental 12 V misconnection or back-driving in mixed-voltage systems. IC Role / Device Role / Timing Role: Bidirectional ESD clamp (anode-to-ground + cathode-to-rail) anchored at 9.1 V. Use Value: Ceramic SOD110 package withstands repeated 2 kV HBM ESD strikes without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | ±5% tolerance, 10 V nominal, SOT-23 package, 225 mW Ptot, 100 nA IR @ 7 V | Higher voltage, lower power, plastic package - less stable under thermal cycling | Select for cost-sensitive consumer designs where 10 V regulation suffices and board space allows SOT-23 |
| BZX84-C9V1 | ±5% tolerance, 9.1 V nominal, SOT-23 package, 300 mW Ptot, 500 nA IR @ 6 V, same VZ | Same electrical specs but plastic SOT-23 - higher moisture sensitivity and wider tempco variation | Select when existing SOT-23 layout prohibits SOD110 rework, accepting reduced long-term stability |
Compared with MMBZ5240BLT1G and BZX84-C9V1, the BZX284-C9V1,115 offers superior thermal stability (+5.5 mV/K vs. ±3.5 mV/K typical), ceramic reliability in humid environments, and 400 mW power headroom-making it preferred for industrial-grade voltage references where long-term drift matters.
Availability
BZX284-C9V1,115 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning circuits, and microcontroller I/O protection requiring stable component supply and consistent ±5% Zener performance.
Supply support for BZX284-C9V1,115 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 high-reliability, low-power voltage regulation in space-constrained SMD applications-emphasizing ceramic packaging, tight tolerance options, and stable thermal behavior across extended temperature ranges.
FAQ
What is the nominal Zener voltage and test condition for BZX284-C9V1,115?
The BZX284-C9V1,115 has a nominal Zener voltage of 9.1 V measured at a test current of 5 mA. This value falls within the ±5% tolerance band (8.5 V to 9.6 V), and the device achieves this regulation point with a differential resistance between 20 Ω and 100 Ω under those conditions. The BZX284-C9V1,115 is specified per NXP's 2002 product data sheet with full characterization at Tj = 25 °C.
Does BZX284-C9V1,115 support bidirectional ESD protection?
The BZX284-C9V1,115 functions as a unidirectional Zener regulator in normal operation but can provide limited bidirectional clamping: forward conduction occurs at ~0.9 V (IF = 10 mA), while reverse breakdown is precisely controlled at 9.1 V. For robust IEC 61000-4-2 ESD protection, dedicated TVS diodes are recommended-but the BZX284-C9V1,115's ceramic SOD110 package delivers proven resilience against repeated 2 kV HBM events in practice.
What is the maximum continuous power dissipation for BZX284-C9V1,115?
The BZX284-C9V1,115 has a maximum total power dissipation of 400 mW at ambient temperature of 25 °C, as defined in the Absolute Maximum Ratings table. Derating is required above 25 °C at 1.27 mW/°C (based on Rth j-a = 315 K/W). This rating assumes mounting on a standard 11 × 25 × 1.6 mm PCB per IEC 60134 guidelines. Exceeding this limit risks permanent parametric shift or failure of the BZX284-C9V1,115.
How does the temperature coefficient of BZX284-C9V1,115 affect circuit design?
The BZX284-C9V1,115 exhibits a positive temperature coefficient of +5.5 mV/K at IZ = 5 mA, meaning its Zener voltage increases linearly with junction temperature. This behavior must be factored into precision reference designs-e.g., pairing with negative-TC resistors or using it in compensated divider networks. Unlike lower-voltage Zeners (<5.6 V) with negative coefficients, the BZX284-C9V1,115's +5.5 mV/K enables predictable upward drift modeling across −40 °C to +125 °C operating ranges.
Is BZX284-C9V1,115 compatible with lead-free reflow soldering processes?
Yes, the BZX284-C9V1,115 is qualified for lead-free reflow soldering per JEDEC J-STD-020. Its ceramic SOD110 package withstands peak temperatures up to 260 °C for 10 seconds. The device's moisture sensitivity level (MSL) is rated at Level 1 (unlimited floor life at ≤30 °C/85% RH), eliminating bake requirements prior to assembly. These attributes ensure reliable manufacturability of the BZX284-C9V1,115 in modern RoHS-compliant production lines.
BZX284-C9V1,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 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-C9V1,115 FAQ
1.How can I place an order for BZX284-C9V1,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C9V1,115 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-C9V1,115 reliable?
The price and inventory of BZX284-C9V1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C9V1,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C9V1,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C9V1,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C9V1,115?
BZX284-C9V1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C9V1,115 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-C9V1,115?
For technical support, including BZX284-C9V1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C9V1,115 requirements.
6.How does Aetrix verify that BZX284-C9V1,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C9V1,115 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-C9V1,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C9V1,115?
All BZX284-C9V1,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C9V1,115, 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-C9V1,115 part is unused and in its original packaging.
Return procedure for BZX284-C9V1,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C9V1,115 Tags
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