My Inquiry
My Account
NXP Semiconductors BZX284-C56,115
- Part No.:
- BZX284-C56,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Zener Diodes
- Package:
- SOD-110
- Datasheet:
-
BZX284-C56,115.pdf
- Description:
- DIODE ZENER 56V 400MW SOD110
- Quantity:
- Payment:
- Shipping:
Inventory:8,607
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX284-C56,115 from NXP Semiconductors is a ±5% tolerance Zener voltage regulator diode in a SOD110 ceramic SMD package, rated for 56 V nominal working voltage at 2 mA test current, 400 mW total power dissipation, and 50 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-C56,115 datasheet, BZX284-C56,115 pinout, BZX284-C56,115 application, or BZX284-C56,115 equivalent, key selection criteria include its 56 V Zener voltage tolerance, 50 nA reverse leakage at 0.7 × VZ, −40 mV/K temperature coefficient at 2 mA, and SOD110 footprint compatibility with space-constrained PCB layouts.
Technical Context
The BZX284-C56,115 operates as a two-terminal silicon Zener diode optimized for stable voltage regulation under reverse bias. 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 non-repetitive peak reverse current of 0.3 A (100 μs square wave), forward voltage of 0.9 V at 10 mA, and diode capacitance of 49 pF at 1 MHz and 0 V reverse bias - parameters critical for transient response and high-frequency stability in regulation loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 54.9 V to 57.1 V at IZ = 2 mA - defines precise clamping threshold for 56 V nominal regulation. |
| Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - sets maximum continuous thermal load without derating. |
| Differential Resistance (rdif) | 50 Ω typical at IZ = 2 mA - determines output impedance and regulation sensitivity to current variation. |
| Reverse Leakage (IR) | 50 nA at VR = 0.7 × VZ ≈ 39.2 V - ensures minimal quiescent current in standby or high-impedance sensing nodes. |
| Temperature Coefficient (SZ) | −40 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius, critical for temperature-stable references. |
| Package | SOD110 - ultra-small ceramic surface-mount outline (2.1 × 1.4 × 1.6 mm) enabling high-density board layout. |
Pinout & Package
SOD110 is a two-terminal surface-mount ceramic package with cathode marked by a band on one end. The device has no active pins - only anode and cathode terminals aligned along the long axis.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal / reference ground node | Connected to circuit ground or lower-potential rail in shunt regulation configuration. |
| Cathode (banded end) | Zener breakdown terminal / regulated output node | Connected to input voltage source; maintains stable 56 V relative to anode during reverse conduction. |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables cost-effective voltage referencing where tight tolerance is not required, reducing BOM cost vs. ±2% variants. |
| 400 mW power rating | Supports moderate-current regulation (up to ~7 mA at 56 V) without external heatsinking on standard FR4 PCBs. |
| SOD110 ceramic package | Provides superior thermal stability and moisture resistance vs. plastic SMD packages, suitable for industrial environments. |
| Low 50 nA leakage at 39.2 V | Minimizes error in high-impedance voltage divider networks and battery-powered monitoring circuits. |
| −40 mV/K tempco | Allows predictable compensation in temperature-critical analog front-ends using simple resistor networks. |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived DC-DC converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference providing stable 56 V threshold to drive optocoupler LED current proportional to output deviation. Use Value: Maintains ±1.5% output regulation across line/load/temperature with no active components in the reference path. |
Use Scenario: Protecting downstream 50 V-rated ICs from transient surges in 48 V telecom or industrial bus systems. IC Role / Device Role / Timing Role: Shunt clamp absorbing surge energy above 56 V while limiting peak voltage to safe levels. Use Value: Limits clamping voltage to ≤57.1 V with <0.3 A peak surge capability, preventing latch-up or gate oxide damage. |
| Reference Voltage Source | Signal Level Translation |
|
Use Scenario: Generating a stable 56 V reference for ADC input scaling or DAC output calibration in test equipment. IC Role / Device Role / Timing Role: Passive voltage reference establishing known potential for analog-to-digital conversion thresholds. Use Value: Delivers <50 nA leakage and 50 Ω dynamic impedance, minimizing loading error on high-Z sensor interfaces. |
Use Scenario: Biasing op-amp inputs or level-shifting logic signals between 3.3 V microcontrollers and 56 V analog subsystems. IC Role / Device Role / Timing Role: Voltage translation element defining upper rail for rail-to-rail comparator hysteresis windows. Use Value: Provides repeatable 56 V threshold with <100 ppm/°C effective drift when combined with series resistors. |
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-C56 | Same 56 V ±5%, 500 mW rating, SOD-123 package (larger footprint, 2.7 × 1.6 mm). | Higher power handling but requires PCB layout revision due to different pad dimensions and thermal pad absence. | Select when higher surge robustness is needed and board space allows SOD-123 rework. |
| Vishay BZX84-C56 | Same 56 V ±5%, 300 mW rating, SOT-23 package (3-pin, anode/cathode/NC; NC unused). | Lower power limit and larger footprint reduce suitability for high-density or thermally constrained designs. | Select only if existing SOT-23 footprint must be reused; verify thermal margin at full 56 V load. |
Compared with BZX284-C56,115, the BZT52-C56 offers +100 mW headroom but demands layout change, while the BZX84-C56 sacrifices 100 mW rating and introduces unnecessary pin count - making the BZX284-C56,115 optimal for compact, thermally stable 56 V shunt regulation.
Availability
BZX284-C56,115 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and reference voltage source applications requiring stable component supply, consistent parametric performance, and long-term obsolescence mitigation.
Supply support for BZX284-C56,115 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 consumer applications.
The BZX284 series was designed specifically for low-power, high-stability voltage regulation in space-constrained SMD applications - emphasizing ceramic package reliability, tight voltage grading, and predictable thermal behavior across industrial temperature ranges.
FAQ
What is the Zener voltage tolerance of the BZX284-C56,115?
The BZX284-C56,115 has a ±5% Zener voltage tolerance, meaning its nominal 56 V working voltage is specified between 52.0 V and 60.0 V at IZ = 2 mA. This tolerance aligns with the "C" series designation in the BZX284 family and is confirmed in Table 2 of the NXP datasheet. The BZX284-C56,115 is intended for applications where moderate regulation accuracy suffices without the cost premium of ±2% variants.
What is the maximum continuous power dissipation for the BZX284-C56,115?
The BZX284-C56,115 has a maximum total power dissipation of 400 mW at ambient temperature of 25 °C, as stated in the Limiting Values table. This rating assumes mounting on a standard 11 × 25 × 1.6 mm PCB per note 1. Derating is required above 25 °C, with thermal resistance j-a = 315 K/W determining the actual safe operating current at elevated temperatures. The BZX284-C56,115 must not exceed this limit to avoid junction overheating.
Does the BZX284-C56,115 have a defined temperature coefficient, and what is its value?
Yes, the BZX284-C56,115 has a temperature coefficient (SZ) of −40 mV/K at IZ = 2 mA, as listed in Table 2 of the NXP datasheet. This negative coefficient indicates that its Zener voltage decreases by approximately 40 mV per Kelvin rise in junction temperature. The BZX284-C56,115's coefficient falls within the typical range for mid-voltage Zeners (5.6–56 V) and enables predictable thermal compensation in precision analog circuits.
What package type does the BZX284-C56,115 use, and what are its dimensions?
The BZX284-C56,115 uses the SOD110 package: a very small ceramic rectangular surface-mount outline measuring 2.10 mm × 1.40 mm × 1.60 mm (max height), with cathode identified by a band. Its footprint is defined in the Package Outline drawing (issue date 97-04-14). The BZX284-C56,115's ceramic construction provides better thermal stability and moisture resistance than plastic alternatives like SOD-123 or SOT-23, supporting reliable operation in harsh environments.
What is the reverse leakage current specification for the BZX284-C56,115?
The BZX284-C56,115 specifies a maximum reverse leakage current (IR) of 50 nA at VR = 0.7 × VZ ≈ 39.2 V, per the Electrical Characteristics table. This low leakage supports high-impedance applications such as voltage divider-based references or battery-monitoring circuits where parasitic current must be minimized. The BZX284-C56,115 achieves this performance through optimized silicon processing and ceramic packaging, distinguishing it from higher-leakage general-purpose diodes.
BZX284-C56,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SOD-110
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 120 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 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-C56,115 FAQ
1.How can I place an order for BZX284-C56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX284-C56,115 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-C56,115 reliable?
The price and inventory of BZX284-C56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX284-C56,115 is usually 5 days.
3.What payment methods are accepted for BZX284-C56,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX284-C56,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX284-C56,115?
BZX284-C56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX284-C56,115 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-C56,115?
For technical support, including BZX284-C56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX284-C56,115 requirements.
6.How does Aetrix verify that BZX284-C56,115 is sourced from the original manufacturer or authorized distributors?
All BZX284-C56,115 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-C56,115 meets industry standards.
7.What is the process for return or replacement of BZX284-C56,115?
All BZX284-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX284-C56,115, 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-C56,115 part is unused and in its original packaging.
Return procedure for BZX284-C56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX284-C56,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
