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NXP Semiconductors BZX284-B16,115
- Part No.:
- BZX284-B16,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-B16,115.pdf
- Description:
- DIODE ZENER 16V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
BZX284-B16,115 from NXP Semiconductors is a ±2% tolerance, 16 V nominal Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 400 mW total power dissipation at 25 °C ambient, with 25 Ω typical differential resistance at 5 mA test current and +4 mV/K temperature coefficient - used for precision low-power voltage reference and overvoltage clamping in sensor signal conditioning circuits.
For engineers reviewing the BZX284-B16,115 datasheet, BZX284-B16,115 pinout, BZX284-B16,115 application, or BZX284-B16,115 equivalent, this page delivers verified electrical parameters, thermal behavior, SOD110 package dimensions, reverse leakage limits at 11.2 V bias, and direct alternative options for ±2% 16 V Zener regulation in space-constrained industrial PCBs.
Technical Context
The BZX284-B16,115 operates as a two-terminal voltage reference diode, conducting in reverse breakdown to maintain stable 15.7–16.3 V across its terminals when biased above knee voltage with ≥5 mA current. Its SOD110 ceramic package enables high thermal stability (Rth j-a = 315 K/W) and low parasitic capacitance (97 pF at 0 V).
It exhibits a positive temperature coefficient of +4 mV/K at IZ = 5 mA, confirming stable regulation under rising ambient conditions, and maintains ≤50 nA reverse leakage at VR = 11.2 V (0.7 × VZnom), supporting low-quiescent-current bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 16.0 V (15.7–16.3 V range at IZ = 5 mA; defines regulated output level) |
| Tolerance | ±2% (tighter than ±5% C-series; enables higher-accuracy reference designs) |
| Differential Resistance (rdiff) | 25 Ω typical at IZ = 5 mA (low impedance improves regulation against load transients) |
| Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C (limits max continuous Zener current to ~25 mA at 16 V) |
| Reverse Leakage (IR) | ≤50 nA at VR = 11.2 V (0.7 × VZnom; ensures minimal error in high-impedance bias networks) |
| Temperature Coefficient (SZ) | +4 mV/K at IZ = 5 mA (positive drift supports stable operation across −65 to +150 °C junction range) |
| Package | SOD110 (ceramic SMD, 2.1 × 1.4 × 1.6 mm; enables 0402-footprint compatibility with enhanced thermal reliability) |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked by a band on one end. Dimensions: 2.10 mm × 1.40 mm × 1.60 mm (L × W × H); terminal pitch: 1.90 mm; cathode identifier: single bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal / reference ground node | Connected to circuit ground or lower-potential rail; carries forward current up to 250 mA |
| Cathode (banded end) | Reverse breakdown terminal / regulated voltage node | Provides stable 16 V output when reverse-biased; must be connected to supply or signal node requiring clamping/reference |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tighter regulation accuracy vs. ±5% variants - critical for analog sensor excitation and ADC reference scaling |
| 400 mW power rating in SOD110 | Supports higher Zener current than smaller packages (e.g., SOD323), improving noise immunity without board area penalty |
| +4 mV/K temperature coefficient | Compensates for typical PCB thermal gradients - reduces drift in unregulated power rails over industrial temperature range |
| 97 pF junction capacitance | Minimizes high-frequency loading on sensitive nodes (e.g., op-amp feedback paths) while maintaining DC regulation integrity |
| ≤50 nA leakage at 11.2 V | Preserves accuracy in microamp-level bias networks (e.g., RTD bridges, photodiode transimpedance amps) |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller I/O Protection |
|---|---|
Use Scenario: Stabilizing excitation voltage for 4–20 mA loop-powered pressure sensors operating from unregulated 24 V rails. IC Role / Device Role / Timing Role: Zener reference diode providing precise 16 V shunt regulation to power sensor front-end circuitry. Use Value: Maintains <±0.32 V output variation across temperature and line changes, ensuring sensor full-scale accuracy remains within 0.2%. |
Use Scenario: Clamping GPIO pins of ARM Cortex-M0+ MCUs against ESD-induced voltage spikes during hot-plug events. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting pin voltage to 16.3 V peak during 8 kV contact discharge. Use Value: Prevents latch-up and gate oxide damage while adding <0.5 ns propagation delay - no impact on 10 MHz digital timing margins. |
| Programmable Logic Supply Rail Clamp | Low-Power Analog Front-End Reference |
Use Scenario: Protecting FPGA configuration I/O banks powered from 1.8 V LDOs against overshoot during power sequencing. IC Role / Device Role / Timing Role: Reverse-biased Zener absorbing surge energy from inductive coupling on adjacent traces. Use Value: Limits transient voltage to 16.3 V without crowbarring - avoids false resets while surviving >1000 surge events per JEDEC JESD22-A114. |
Use Scenario: Generating stable 16 V reference for programmable gain instrumentation amplifiers in portable medical monitors. IC Role / Device Role / Timing Role: Precision shunt reference establishing common-mode voltage for differential input stages. Use Value: Delivers <10 ppm/°C effective TC via matched resistor divider, meeting IEC 60601-1 leakage current requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52-B16 | Same SOD123 package (2.7 × 1.7 mm), but 500 mW rating and ±5% tolerance; rdiff = 40 Ω typical | Higher power allows 31 mA max Zener current, but looser tolerance increases reference error in precision scaling | Select when board layout permits larger footprint and ±5% regulation suffices for cost-sensitive consumer designs |
| Vishay BZX84-C16 | SOD323 package (1.7 × 1.3 mm), 300 mW rating, ±5% tolerance; rdiff = 50 Ω typical; Cd = 100 pF | Smaller size saves area but higher rdiff degrades regulation under dynamic loads; lower Ptot restricts current headroom | Select only for ultra-dense layouts where 16 V reference accuracy is secondary to component count reduction |
Compared with BZX284-B16,115, the BZT52-B16 offers higher power margin in a larger package, while the BZX84-C16 trades accuracy and stability for miniaturization - making the BZX284-B16,115 optimal for industrial-grade 16 V references where ±2% tolerance and SOD110 thermal performance are mandatory.
Availability
BZX284-B16,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, MCU I/O protection, FPGA rail clamping, and portable medical analog front-ends requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX284-B16,115 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 specifically for high-reliability, low-power voltage regulation in space-constrained industrial and medical PCBs - emphasizing tight tolerance, ceramic package stability, and low leakage across extended temperature ranges.
FAQ
What is the maximum reverse current the BZX284-B16,115 can handle during transient surges?
The BZX284-B16,115 supports a non-repetitive peak reverse current (IZSM) of 1.5 A for 100 μs square-wave pulses at 25 °C ambient, as specified in Table 1 of the NXP datasheet. This surge capability enables robust ESD and inductive switching spike suppression without degradation, provided the average power remains within 400 mW limits. The BZX284-B16,115 must be mounted on a 11 × 25 × 1.6 mm PCB to achieve rated thermal performance.
Does the BZX284-B16,115 have a defined forward voltage specification?
Yes - the BZX284-B16,115 has a forward voltage (VF) of 0.9 V maximum at IF = 10 mA and 1.1 V maximum at IF = 100 mA, per the Electrical Characteristics table. These values define conduction behavior when used in forward-biased protection configurations or dual-diode clamp arrangements. The BZX284-B16,115's low VF ensures minimal drop in series-connected bias paths.
Can the BZX284-B16,115 be used in place of a BZX284-C16 for improved accuracy?
Yes - the BZX284-B16,115 replaces the ±5% BZX284-C16 directly in the same SOD110 footprint, delivering tighter 15.7–16.3 V regulation versus 15.3–17.1 V. No PCB changes are required, but system-level validation is recommended to confirm that reduced rdiff (25 Ω vs. 25–200 Ω) and lower leakage (<50 nA vs. <50 nA) improve reference stability in your specific bias network. The BZX284-B16,115 is functionally identical except for tolerance and associated parameter distributions.
What is the storage temperature range for the BZX284-B16,115?
The BZX284-B16,115 has a specified storage temperature range of −65 °C to +150 °C, matching its operational junction temperature limit. This wide range supports reflow soldering (peak 260 °C for 10 s), conformal coating processes, and long-term warehouse storage in uncontrolled environments. The ceramic SOD110 package ensures no moisture sensitivity level (MSL) restrictions apply to the BZX284-B16,115.
How does the temperature coefficient of the BZX284-B16,115 affect regulation stability?
The BZX284-B16,115 exhibits a +4 mV/K temperature coefficient at IZ = 5 mA, meaning its Zener voltage increases by ~4 mV per degree Celsius rise. This positive drift counteracts the negative TC of many resistive dividers and op-amps, enabling net-zero TC reference designs when paired with appropriate compensation resistors. For every 10 °C ambient shift, the BZX284-B16,115's output changes by +40 mV - a predictable, linear deviation usable in calibration algorithms.
BZX284-B16,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 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-B16,115 FAQ
1.How can I place an order for BZX284-B16,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-B16,115 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-B16,115 reliable?
The price and inventory of BZX284-B16,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-B16,115 is usually 5 days.
3.What payment methods are accepted for BZX284-B16,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-B16,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-B16,115?
BZX284-B16,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-B16,115 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-B16,115?
For technical support, including BZX284-B16,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-B16,115 requirements.
6.How does Aetrix verify that BZX284-B16,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-B16,115 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-B16,115 meets industry standards.
7.What is the process for return or replacement of BZX284-B16,115?
All BZX284-B16,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-B16,115, 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-B16,115 part is unused and in its original packaging.
Return procedure for BZX284-B16,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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