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NXP Semiconductors BZX284-C27,115
- Part No.:
- BZX284-C27,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C27,115.pdf
- Description:
- DIODE ZENER 27V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:8,419
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Product details
Overview
BZX284-C27,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in SOD110 ceramic SMD package, rated for 27 V nominal working voltage at 2 mA test current, 400 mW total power dissipation, and 1.0 A non-repetitive peak reverse surge current. It serves as a precision low-power voltage reference in power supply feedback paths, overvoltage clamping circuits, and analog signal conditioning stages.
For engineers reviewing the BZX284-C27,115 datasheet, BZX284-C27,115 pinout, BZX284-C27,115 application, or BZX284-C27,115 equivalent, this page delivers verified electrical parameters, thermal behavior, SOD110 package geometry, and real-world design context for stable voltage regulation in space-constrained PCBs.
Technical Context
The BZX284-C27,115 operates as a two-terminal silicon Zener diode with controlled reverse breakdown at 27 V (±5%), exhibiting differential resistance of 35–250 Ω at 2 mA and temperature coefficient of +8 mV/K (typical) - indicating positive drift with junction temperature rise. Its low 1.0 pF capacitance at 0 V bias supports high-frequency stability in noise-sensitive references.
Designed for surface-mount use on standard FR-4 PCBs (11 × 25 × 1.6 mm), it achieves a junction-to-ambient thermal resistance of 315 K/W and supports continuous forward current up to 250 mA. Reverse leakage remains ≤50 nA at 0.7 × VZnom, ensuring minimal quiescent power loss in standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 27 V at IZ = 2 mA - defines stable regulation point for feedback loops and clamp thresholds. |
| Tolerance | ±5% - allows predictable voltage margin in cost-sensitive consumer and industrial designs. |
| Total Power Dissipation | 400 mW at Tamb = 25 °C - sets maximum steady-state power handling without heatsinking. |
| Differential Resistance | 35–250 Ω at IZ = 2 mA - determines output impedance and load regulation sensitivity. |
| Temperature Coefficient | +8 mV/K (typical) - quantifies voltage drift per degree Celsius rise in junction temperature. |
| Reverse Leakage Current | ≤50 nA at VR = 18.9 V (0.7 × VZnom) - ensures negligible current draw in high-impedance bias networks. |
| Non-Repetitive Peak Surge | 1.0 A for tp = 100 μs - enables transient overvoltage suppression without device failure. |
Pinout & Package
Package: SOD110 - very small ceramic rectangular surface-mounted package (2.10 × 1.40 × 1.60 mm), cathode marked by band on top surface. Mounting requires standard reflow profile for ceramic SMD devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Forward conduction terminal / low-side connection | Connected to ground or lower potential node in reverse-biased Zener configuration. |
| Cathode (2) | Zener breakdown terminal / regulation output | Provides stable 27 V reference when reverse biased; connects to regulated rail or error amplifier input. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD110 ceramic package | Enables placement in ultra-thin consumer electronics and dense power modules where height < 1.6 mm is critical. |
| ±5% voltage tolerance (C-series) | Reduces BOM complexity and cost versus tighter-tolerance variants while maintaining functional accuracy for non-critical references. |
| 400 mW power rating at 25 °C ambient | Supports direct regulation of low-current analog rails (e.g., op-amp bias, ADC reference) without external series resistor derating. |
| +8 mV/K temperature coefficient | Compensates for negative TC components in mixed-signal systems, enabling improved overall thermal stability in multi-device references. |
| 1.0 pF junction capacitance at 0 V | Minimizes phase shift and loading in high-frequency feedback paths, preserving loop stability in switching regulator error amplifiers. |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Regulating output voltage of isolated DC-DC converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference providing precise 27 V threshold to TL431 shunt regulator input. Use Value: Maintains ±1.5% output regulation across line/load/temperature with no additional trimming required. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced transients on 24 V industrial sensor lines. IC Role / Device Role / Timing Role: Clamping diode diverting surge energy above 27 V to ground before IC damage occurs. Use Value: Limits peak voltage to ≤28.4 V (27 V + 5% tolerance + dynamic overshoot margin) during 1 kV ESD events. |
| Analog Signal Level Shifting | Low-Power Voltage Reference |
|
Use Scenario: Biasing photodiode amplifier in battery-powered gas sensor front-end. IC Role / Device Role / Timing Role: Providing stable 27 V virtual ground for dual-supply op-amp operation from single 30 V rail. Use Value: Enables rail-to-rail input swing with < 0.5 mV drift over −40 to +85 °C operating range. |
Use Scenario: Generating precision reference for 12-bit SAR ADC in portable instrumentation. IC Role / Device Role / Timing Role: Low-noise Zener source feeding resistive divider to produce 2.5 V reference. Use Value: Delivers < 10 ppm/°C effective TC after scaling, meeting ±0.5 LSB accuracy requirement at full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5256BS-7-F | 27 V ±5%, SOD-123 package (2.7 × 1.7 × 1.3 mm), 350 mW Ptot, 100 Ω rdif | Larger footprint and higher thermal resistance (350 K/W); lower surge rating (0.5 A) | Select when existing layout accommodates SOD-123 or when lower differential resistance is prioritized over size. |
| Vishay BZX84-C27-TP | 27 V ±5%, SOT-23 package (3.0 × 1.4 × 1.1 mm), 300 mW Ptot, 400 Ω rdif | Plastic package (lower moisture resistance), higher rdif increases regulation error under load variation | Choose for cost-sensitive production where plastic SMT compatibility outweighs ceramic reliability requirements. |
Compared with BZX284-C27,115, the MMBZ5256BS-7-F offers tighter differential resistance but demands more PCB area and dissipates less power, while the BZX84-C27-TP trades ceramic robustness and power handling for lower unit cost and wider distributor availability.
Availability
BZX284-C27,115 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-C27,115 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 developed to deliver high-reliability, low-profile Zener regulation for space-constrained power management and protection circuits in harsh-environment electronics.
FAQ
What is the Zener voltage tolerance of BZX284-C27,115?
The BZX284-C27,115 has a nominal Zener voltage of 27 V with a ±5% tolerance, meaning its actual breakdown voltage falls between 25.65 V and 28.35 V at 2 mA test current. This tolerance is confirmed in Table 2 of the NXP datasheet and applies across the full operating temperature range. The "C" suffix explicitly denotes the ±5% variant within the BZX284 family.
Can BZX284-C27,115 be used in place of BZX284-B27?
No - BZX284-C27,115 and BZX284-B27 share the same 27 V nominal voltage but differ in tolerance: BZX284-C27,115 is ±5%, while BZX284-B27 is ±2%. Their differential resistance, temperature coefficient, and surge ratings are identical, but substituting them requires verifying whether system-level voltage margin budgets accommodate the wider tolerance band of the C-series part.
What is the maximum continuous forward current for BZX284-C27,115?
The maximum continuous forward current for BZX284-C27,115 is 250 mA, as specified in the Limiting Values table of the NXP datasheet. This rating assumes operation at Tamb = 25 °C with proper PCB copper area; derating is required at elevated ambient temperatures due to its 315 K/W junction-to-ambient thermal resistance.
Does BZX284-C27,115 have a defined cathode marking?
Yes - BZX284-C27,115 uses a cathode band marking on the top surface of its SOD110 ceramic package, consistent with Figure 1 in the NXP datasheet. The band identifies pin 2 (cathode), while pin 1 (anode) is unmarked. This polarity must be observed during PCB layout to ensure correct reverse-bias operation in regulation or clamping roles.
What is the non-repetitive peak reverse current rating for BZX284-C27,115?
The non-repetitive peak reverse current (IZSM) for BZX284-C27,115 is 1.0 A at pulse width tp = 100 μs and ambient temperature of 25 °C prior to surge, as listed in Table 2 of the NXP datasheet. This rating defines its capability to absorb short-duration overvoltage transients without permanent degradation.
BZX284-C27,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 18.9 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-C27,115 FAQ
1.How can I place an order for BZX284-C27,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C27,115 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-C27,115 reliable?
The price and inventory of BZX284-C27,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C27,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C27,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C27,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C27,115?
BZX284-C27,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C27,115 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-C27,115?
For technical support, including BZX284-C27,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C27,115 requirements.
6.How does Aetrix verify that BZX284-C27,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C27,115 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-C27,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C27,115?
All BZX284-C27,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C27,115, 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-C27,115 part is unused and in its original packaging.
Return procedure for BZX284-C27,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C27,115 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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