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NXP Semiconductors BZX284-C15,135
- Part No.:
- BZX284-C15,135
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C15,135.pdf
- Description:
- DIODE ZENER 15V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:8,635
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Product details
Overview
BZX284-C15,135 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 15 V nominal working voltage at 5 mA test current, 400 mW total power dissipation, and 25 Ω typical differential resistance. It serves as a precision low-power voltage reference in power supply feedback paths, overvoltage protection circuits, and analog signal conditioning stages.
For engineers reviewing the BZX284-C15,135 datasheet, BZX284-C15,135 pinout, BZX284-C15,135 application, or BZX284-C15,135 equivalent, key selection criteria include its 15 V Zener voltage tolerance (±5%), 25 Ω dynamic impedance at 5 mA, 50 nA reverse leakage at 0.7×VZnom, −65 to +150 °C storage temperature range, and SOD110 footprint compatibility with space-constrained PCB layouts.
Technical Context
The BZX284-C15,135 operates as a two-terminal silicon Zener diode optimized for stable reverse-bias breakdown regulation. Its junction temperature is rated up 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 - defining its derating behavior under sustained load.
Electrical performance is specified at Tj = 25 °C, with reverse current measured at VR = 0.7×VZnom (10.5 V), yielding ≤50 nA leakage. Forward voltage is 0.9 V at 10 mA and 1.1 V at 100 mA, supporting bidirectional clamping or dual-role biasing where applicable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.7–15.3 V at IZtest = 5 mA; defines regulated output level in shunt regulator topologies |
| Tolerance | ±5%; specifies maximum deviation from nominal 15 V under production conditions |
| Differential Resistance (rdiff) | 25 Ω typical at 5 mA; determines output voltage stability against load current variation |
| Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C; sets maximum continuous DC power handling before thermal shutdown |
| Reverse Leakage (IR) | ≤50 nA at VR = 10.5 V (0.7×VZnom); critical for low-current bias networks and high-impedance references |
| Package | SOD110 ceramic SMD; 2.1 × 1.4 × 1.6 mm footprint enabling ultra-compact board placement |
| Junction Temperature (Tj) | −65 to +150 °C; supports operation in industrial and automotive under-hood environments |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked by a band on one end. Terminals are non-polarized in function but polarity-critical in circuit connection: anode connects to lower potential, cathode to higher potential for reverse-bias regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side terminal | Connected to ground or reference node; carries forward current during conduction or surge discharge path |
| Cathode (banded end) | High-side terminal | Connected to regulated voltage node; sustains reverse breakdown at VZ = 15 V; must be routed with adequate copper area for thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables cost-optimized regulation where tight voltage accuracy is not required, e.g., non-critical biasing or coarse overvoltage clamping |
| 400 mW power rating | Supports up to ~26.7 mA continuous Zener current at 15 V, sufficient for feedback divider biasing in SMPS controllers |
| Low 50 nA reverse leakage | Minimizes error in high-impedance voltage divider networks and preserves battery life in always-on monitoring circuits |
| SOD110 ceramic package | Provides superior moisture resistance and thermal stability vs. plastic SOD-323, suitable for reflow and harsh-environment assembly |
| −65 to +150 °C operating range | Validates use in extended-temperature industrial controls and automotive body electronics without derating penalties |
Applications
| Power Supply Feedback Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Providing stable reference voltage to TL431 or optocoupler feedback network in isolated flyback converters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise 15 V threshold for secondary-side regulation loop. Use Value: 25 Ω rdiff ensures <15 mV output shift across 0–10 mA load variation, maintaining ±1% output regulation accuracy. |
Use Scenario: Clamping transient surges on 12 V rail in automotive infotainment head units. IC Role / Device Role / Timing Role: Passive crowbar element diverting excess energy above 15 V to ground during load-dump events. Use Value: 400 mW rating allows absorption of 100 ms pulses up to 26.7 mA without degradation, meeting ISO 7637-2 Pulse 1/2 immunity requirements. |
| Analog Signal Level Shifting | Microcontroller I/O Protection |
|
Use Scenario: Biasing op-amp input stage to 15 V rail in industrial sensor signal conditioning front-ends. IC Role / Device Role / Timing Role: Precision DC offset generator stabilizing common-mode voltage in differential amplifiers. Use Value: ±5% tolerance and low 50 nA leakage prevent gain error drift and input bias current injection in high-Z sensor interfaces. |
Use Scenario: Protecting 3.3 V MCU GPIO pins from accidental 15 V miswiring in modular test equipment. IC Role / Device Role / Timing Role: Bidirectional ESD clamp limiting voltage excursion to safe levels during human-handling events. Use Value: Forward VF = 0.9 V at 10 mA enables low-threshold clamping below MCU absolute maximum ratings while surviving >10 kV HBM ESD strikes. |
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-C15 | Same 15 V ±5%, SOD-123 package (2.7 × 1.6 × 1.1 mm), 500 mW rating, 40 Ω rdiff | Larger footprint; higher power enables longer surge handling but requires more board area | Select for higher surge robustness where SOD-123 layout is acceptable and thermal margin is constrained |
| Vishay BZX84-C15 | Same 15 V ±5%, SOT-23 package (3.0 × 1.4 × 1.1 mm), 300 mW rating, 30 Ω rdiff | Plastic encapsulation; lower moisture resistance; 300 mW limits continuous current to ~20 mA | Select for cost-sensitive consumer designs where SOT-23 pick-and-place compatibility outweighs ceramic reliability needs |
Compared with BZX284-C15,135, the BZT52-C15 offers higher power and larger thermal mass but occupies more PCB area, while the BZX84-C15 trades ceramic ruggedness and thermal stability for lower cost and SOT-23 assembly familiarity - making the BZX284-C15,135 optimal for compact, high-reliability industrial modules.
Availability
BZX284-C15,135 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and medical sensor interfaces requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZX284-C15,135 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 as a family of low-power, high-stability Zener diodes targeting space-constrained, thermally demanding applications where ceramic packaging and tight parametric consistency are essential - particularly in feedback, protection, and reference functions.
FAQ
What is the Zener voltage tolerance of the BZX284-C15,135?
The BZX284-C15,135 has a ±5% Zener voltage tolerance, meaning its nominal 15 V breakdown voltage falls within 14.25 V to 15.75 V at IZ = 5 mA. This tolerance is confirmed in Table 1 of the NXP datasheet and applies specifically to the "C" series variants like the BZX284-C15,135 - distinguishing it from the tighter ±2% "B" series.
What is the maximum continuous reverse current the BZX284-C15,135 can handle?
The BZX284-C15,135 supports a maximum continuous reverse (Zener) current of approximately 26.7 mA, calculated from its 400 mW power rating and 15 V nominal Zener voltage (IZmax = Ptot/VZ). This value assumes Tamb = 25 °C and proper PCB thermal relief; derating is required at elevated ambient temperatures per its 315 K/W Rth j-a.
Does the BZX284-C15,135 have a specified temperature coefficient?
Yes - the BZX284-C15,135 exhibits a positive temperature coefficient of +11.4 mV/K at IZ = 5 mA, as listed in Table 1 of the NXP datasheet. This means its Zener voltage increases by ~11.4 mV per degree Celsius rise in junction temperature, a key factor when designing temperature-stable references across wide operating ranges.
What is the reverse leakage current specification for the BZX284-C15,135?
The BZX284-C15,135 has a maximum reverse leakage current of 50 nA at VR = 10.5 V (0.7 × VZnom), per the Electrical Characteristics table in the NXP datasheet. This low leakage is critical for high-impedance bias networks and ensures minimal error contribution in precision reference applications using the BZX284-C15,135.
Is the BZX284-C15,135 compatible with lead-free reflow soldering processes?
Yes - the BZX284-C135,135's SOD110 ceramic package is qualified for lead-free reflow soldering per JEDEC J-STD-020. Its construction withstands peak temperatures up to 260 °C for 10 seconds, and the device is rated for operation from −65 °C to +150 °C, ensuring reliability through multiple thermal cycles without delamination or parameter shift in the BZX284-C15,135.
BZX284-C15,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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-C15,135 FAQ
1.How can I place an order for BZX284-C15,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C15,135 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-C15,135 reliable?
The price and inventory of BZX284-C15,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C15,135 is usually 5 days.
3.What payment methods are accepted for BZX284-C15,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C15,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C15,135?
BZX284-C15,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C15,135 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-C15,135?
For technical support, including BZX284-C15,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C15,135 requirements.
6.How does Aetrix verify that BZX284-C15,135 is sourced from the original manufacturer or authorized distributors?
All BZX284-C15,135 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-C15,135 meets industry standards.
7.What is the process for return or replacement of BZX284-C15,135?
All BZX284-C15,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C15,135, 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-C15,135 part is unused and in its original packaging.
Return procedure for BZX284-C15,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C15,135 Tags
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