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Nexperia USA Inc. BZX384-C56,115
- Part No.:
- BZX384-C56,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C56,115.pdf
- Description:
- DIODE ZENER 56V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:915
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Product details
Overview
BZX384-C56,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 56 V nominal breakdown voltage at 2 mA, 425 Ω maximum differential resistance, and 200 μA reverse current at 44.8 V, used for precision low-power voltage reference and overvoltage clamping in power supply feedback loops.
For engineers reviewing the BZX384-C56,115 datasheet, BZX384-C56,115 pinout, BZX384-C56,115 application, or BZX384-C56,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (110 K/W to solder point), non-repetitive peak reverse current (0.3 A), and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This discrete Zener diode operates in reverse-biased breakdown mode to maintain stable DC reference voltage under varying load and temperature conditions. Its design centers on tight voltage regulation at low test currents (IZ = 2 mA), with temperature coefficient of +39.2 mV/K enabling predictable drift compensation in analog circuits.
The device features low thermal resistance from junction to solder point (110 K/W), enabling reliable operation up to 150 °C junction temperature. Its 300 mW total power dissipation rating is defined under standard FR4 PCB mounting conditions with single-sided copper and tin plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 52.0 V to 60.0 V at IZ = 2 mA - defines usable regulation window for feedback sensing |
| Differential Resistance (rdif) | ≤425 Ω - limits output impedance and voltage error under dynamic load changes |
| Reverse Current (IR) | ≤200 μA at VR = 44.8 V - ensures low leakage in standby or high-impedance bias networks |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard PCB |
| Non-repetitive Peak Current (IZSM) | 0.3 A for tp = 100 μs - supports transient overvoltage suppression without failure |
| Junction Temperature (Tj) | −65 °C to +150 °C - enables deployment in industrial and extended-temperature environments |
| Forward Voltage (VF) | ≤1.1 V at IF = 100 mA - confirms low conduction loss when used as clamp in forward direction |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case with 2 leads, 1.35 mm × 0.85 mm body size, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines correct orientation in series-shunt regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tighter tolerances are unnecessary |
| Low thermal resistance (110 K/W to solder point) | Improves thermal coupling to PCB copper, reducing junction temperature rise during sustained operation |
| Non-repetitive peak reverse power (40 W) | Supports surge immunity in input protection circuits without derating for short transients |
| SOD323 footprint compatibility | Allows placement in space-constrained designs while maintaining reflow-soldering manufacturability |
| 150 °C maximum junction temperature | Permits use in thermally demanding applications such as automotive under-hood modules (non-automotive qualified) |
Applications
| Switch-Mode Power Supply Feedback | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Provides reference voltage for optocoupler-based feedback in isolated AC/DC adapters. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference in TL431-like configuration to regulate output voltage. Use Value: 56 V rating allows direct connection across auxiliary winding outputs without external scaling resistors. |
Use Scenario: Generates clean reset signal for ARM Cortex-M microcontrollers during brown-out events. IC Role / Device Role / Timing Role: Functions as threshold detector in RC-reset network to trigger POR logic. Use Value: Low 200 μA leakage ensures minimal discharge of timing capacitor, improving reset timing accuracy. |
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
Use Scenario: Stabilizes excitation voltage for 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Shunt regulator maintains constant 56 V rail for HART modem biasing and sensor bridge excitation. Use Value: 425 Ω differential resistance minimizes load-induced voltage droop across 1 kΩ sense resistor networks. |
Use Scenario: Clamps transient surges on USB VBUS line before reaching downstream USB controller ICs. IC Role / Device Role / Timing Role: Fast-acting Zener clamp diverts ESD or inductive spikes away from sensitive PHY interface. Use Value: 0.3 A non-repetitive peak current rating handles IEC 61000-4-2 Level 4 (15 kV air) events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52-C56 | Same 56 V nominal Zener voltage, ±5 % tolerance, but higher 600 mW power rating and SOD123 package | Requires larger PCB footprint; better suited for higher-power dissipation scenarios | Select when board layout allows SOD123 and thermal margin exceeds 300 mW |
| Vishay BZX584-C56 | Identical SOD323 package and ±5 % tolerance, but 400 mW Ptot and 350 Ω rdif at 2 mA | Offers lower dynamic impedance for improved regulation stability under variable loads | Prefer when tighter voltage regulation under load variation is critical |
Compared with BZX384-C56,115, the BZT52-C56 trades compactness for higher power headroom, while the BZX584-C56 improves regulation fidelity at the cost of slightly reduced surge robustness (0.25 A vs. 0.3 A IZSM).
Availability
BZX384-C56,115 is available at Aetrix Electronics and suitable for switch-mode power supplies, microcontroller reset circuits, industrial sensor interfaces, and USB port protection requiring stable component supply with consistent parametric performance across production batches.
Supply support for BZX384-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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in mass-market electronics.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered for low-power voltage reference and clamping in space-constrained consumer, industrial, and computing applications.
FAQ
What is the Zener test current for BZX384-C56,115?
The specified Zener voltage (52.0 V to 60.0 V) is measured at IZ = 2 mA, per Table 9 of the Nexperia datasheet Rev. 4. This lower test current reflects its optimization for low-power bias and reference applications rather than high-current regulation.
Can BZX384-C56,115 be used in automotive applications?
No - BZX384-C56,115 is explicitly designated as non-automotive qualified per Section 13 of the datasheet. It lacks AEC-Q200 qualification, automotive-grade screening, and guaranteed operation over −40 °C to +125 °C ambient. Automotive alternatives must be selected from Nexperia's -Q qualified portfolio.
How does the ±5 % tolerance affect circuit accuracy?
The ±5 % tolerance means the actual Zener voltage may range from 52.0 V to 60.0 V at 2 mA. In feedback loops, this directly impacts output voltage accuracy - e.g., a 12 V supply using resistive divider scaling will exhibit ±5 % proportional error unless trimmed or compensated externally.
Is the SOD323 package compatible with standard reflow profiles?
Yes - Nexperia provides validated reflow soldering footprints (Figure 12) and specifies compatibility with JEDEC J-STD-020 moisture sensitivity level 1. The SOD323 outline supports standard lead-free reflow profiles with peak temperatures up to 260 °C and 60-second duration above 217 °C.
BZX384-C56,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 200 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-323
BZX384-C56,115 FAQ
1.How can I place an order for BZX384-C56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-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 BZX384-C56,115 reliable?
The price and inventory of BZX384-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 BZX384-C56,115 is usually 5 days.
3.What payment methods are accepted for BZX384-C56,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C56,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C56,115?
BZX384-C56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-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 BZX384-C56,115?
For technical support, including BZX384-C56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C56,115 requirements.
6.How does Aetrix verify that BZX384-C56,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-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 BZX384-C56,115 meets industry standards.
7.What is the process for return or replacement of BZX384-C56,115?
All BZX384-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-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 BZX384-C56,115 part is unused and in its original packaging.
Return procedure for BZX384-C56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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