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Nexperia USA Inc. BZX384-C24,115
- Part No.:
- BZX384-C24,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C24,115.pdf
- Description:
- DIODE ZENER 24V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:92,472
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Product details
Overview
BZX384-C24,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 24 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and 55 Ω maximum differential resistance. It operates across –65 °C to +150 °C ambient range and serves as a precision reference or overvoltage clamp in low-power analog and digital supply rails.
For engineers reviewing the BZX384-C24,115 datasheet, BZX384-C24,115 pinout, BZX384-C24,115 application, or BZX384-C24,115 equivalent, key selection criteria include its ±5 % VZ tolerance, 22.8–25.6 V working voltage range, non-repetitive peak reverse current of 1.25 A, thermal resistance of 415 K/W, and cathode-marked SOD323 footprint compatibility with standard reflow profiles.
Technical Context
This Zener diode functions as a two-terminal shunt voltage reference, maintaining stable output by conducting reverse current when applied voltage exceeds its specified breakdown threshold. Its operation relies on controlled avalanche and Zener mechanisms depending on voltage level, with temperature coefficient of +16.8 mV/K at IZ = 5 mA.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it delivers regulated voltage under DC or low-frequency transient conditions, with reverse current limited to ≤0.05 μA at VR = 19.2 V and ≤70 μA at VR = 22.8 V per datasheet Table 8.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 22.8 V to 25.6 V at IZ = 5 mA - defines usable regulation window for 24 V nominal systems |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard PCB |
| Differential Resistance (rdif) | ≤250 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤70 μA at VR = 22.8 V - quantifies leakage before regulation onset, critical for low-power standby circuits |
| Non-repetitive Peak Current (IZSM) | 1.25 A for tp = 100 μs - supports transient overvoltage clamping without damage |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity protection element |
| Junction Temperature (Tj) | –65 °C to +150 °C - confirms suitability for industrial and extended-temperature environments |
Pinout & Package
SOD323 (SC-76) plastic surface-mounted package with 2 leads, 1.35 mm × 0.85 mm body size, 0.45 mm lead pitch, and cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased during regulation; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % VZ tolerance | Enables cost-effective voltage referencing where tight regulation is not required, e.g., power-good detection |
| 300 mW power rating | Supports regulation in battery-powered sensors and microcontroller I/O protection without heatsinking |
| Low 415 K/W Rth(j-a) | Permits operation up to 125 °C ambient on standard FR4 PCB without derating below 200 mW |
| 1.25 A surge capability | Clamps ESD transients (IEC 61000-4-2 Level 4) and inductive kickback in relay drivers |
| SOD323 footprint | Matches industry-standard 0805-equivalent land pattern, enabling automated placement and reflow compatibility |
Applications
| Power Supply Monitoring | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Detecting undervoltage condition in 24 V industrial control power rail. IC Role / Device Role / Timing Role: Shunt reference providing threshold signal to comparator input. Use Value: Stable 24 V reference with ±5 % tolerance ensures reliable reset assertion at 22.8 V, preventing brownout operation. |
Use Scenario: Generating clean reset pulse for ARM Cortex-M0+ MCU during cold start. IC Role / Device Role / Timing Role: Zener-clamped RC delay network defining reset timeout duration. Use Value: Low leakage (<70 μA) preserves capacitor charge integrity, ensuring predictable 100 ms reset hold time. |
| IO Protection Clamp | Reference Voltage Source |
Use Scenario: Protecting RS-485 transceiver inputs from 30 V surges in factory automation wiring. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between line and ground. Use Value: 1.25 A non-repetitive peak current rating absorbs 40 W surges (100 μs), preventing latch-up in receiver circuitry. |
Use Scenario: Providing 24 V reference for 12-bit ADC in programmable logic controller analog input module. IC Role / Device Role / Timing Role: Passive voltage reference feeding op-amp buffer stage. Use Value: 250 Ω differential resistance contributes <0.1 % gain error at 100 μA load, meeting ±0.5 % system accuracy target. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5249BS-7-F | 24 V, ±5 %, SOT-23 package, 350 mW Ptot, 100 Ω rdif | Higher power rating and lower impedance, but larger footprint and higher cost | Select when tighter regulation (lower rdif) or higher surge margin is required |
| Vishay BZX384-B24-7-F | 24 V, ±2 %, same SOD323 package, identical Ptot and thermal specs | Narrower tolerance improves reference accuracy but increases unit cost | Select when system-level calibration requires <±2 % VZ stability over temperature |
Compared with BZX384-C24,115, the MMBZ5249BS-7-F offers superior dynamic regulation at higher currents but demands board space reallocation, while the BZX384-B24-7-F trades cost for improved initial accuracy-neither is pin-compatible due to differing marking codes and reel packaging, though both share identical solder footprint.
Availability
BZX384-C24,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller I/O modules, and RS-485 communication hardware requiring stable component supply with traceable lot history and full RoHS compliance.
Supply support for BZX384-C24,115 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 focused on high-volume, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered specifically for cost-sensitive, space-constrained voltage regulation and protection in consumer, industrial, and computing applications.
FAQ
What is the maximum reverse voltage that can be continuously applied without regulation?
The maximum non-regulating reverse voltage is 19.2 V - defined as 80 % of the minimum specified VZ (22.8 V). Below this, reverse current remains ≤0.05 μA, ensuring negligible power loss and no functional regulation. Exceeding 19.2 V initiates controlled Zener conduction.
Can BZX384-C24,115 be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients and parameter spread; paralleling causes current hogging and thermal runaway. For >300 mW needs, use a single higher-rated device like PZM24NB2 or add an external series transistor to form an active shunt regulator.
Is this part suitable for automotive applications?
No - BZX384-C24,115 is not AEC-Q200 qualified. Nexperia explicitly states in Revision 4 that BZX384_SER products are non-automotive; automotive alternatives must be selected from the separate -Q qualified series, such as BZX384-C24-Q.
How does temperature affect its voltage regulation accuracy?
At IZ = 5 mA, the temperature coefficient is +16.8 mV/K - meaning VZ increases ~0.4 V over a 25 °C to 125 °C junction range. This drift must be compensated in precision references via circuit design or calibration, as the ±5 % tolerance does not include thermal variation.
BZX384-C24,115 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):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 16.8 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-C24,115 FAQ
1.How can I place an order for BZX384-C24,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C24,115 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-C24,115 reliable?
The price and inventory of BZX384-C24,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C24,115 is usually 5 days.
3.What payment methods are accepted for BZX384-C24,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C24,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C24,115?
BZX384-C24,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C24,115 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-C24,115?
For technical support, including BZX384-C24,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C24,115 requirements.
6.How does Aetrix verify that BZX384-C24,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-C24,115 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-C24,115 meets industry standards.
7.What is the process for return or replacement of BZX384-C24,115?
All BZX384-C24,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C24,115, 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-C24,115 part is unused and in its original packaging.
Return procedure for BZX384-C24,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C24,115 Tags
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