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Nexperia USA Inc. BZX585-C2V4,115
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- Part No.:
- BZX585-C2V4,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C2V4,115.pdf
- Description:
- DIODE ZENER 2.4V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:5,097
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Product details
Overview
BZX585-C2V4,115 from Nexperia is a 2.4 V ±5 % Zener voltage regulator diode in SOD523 (SC-79) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision low-voltage reference and overvoltage clamping in space-constrained consumer and industrial power rails.
For engineers reviewing the BZX585-C2V4,115 datasheet, BZX585-C2V4,115 pinout, BZX585-C2V4,115 application, or BZX585-C2V4,115 equivalent, this device supports stable 2.4 V regulation at 5 mA test current with 275 Ω typical differential resistance, low 1.1 V forward voltage at 100 mA, and −3.5 to −1.3 mV/K temperature coefficient - critical for battery-powered sensor biasing and USB port protection circuits.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 2.4 V at IZ = 5 mA, exhibiting tight ±5 % tolerance and low dynamic impedance (275 Ω typ. at 5 mA). Its thermal resistance from junction to solder point is 65 K/W, enabling reliable operation up to 150 °C junction temperature when mounted on FR4 PCB with 35 mm² copper area at cathode tab.
The device delivers 40 W non-repetitive peak reverse power handling for 100 µs square-wave surges at 25 °C ambient, while maintaining ≤ 300 mW steady-state dissipation. Its reverse leakage remains ≤ 50 µA at VR = 1.0 V and ≤ 1.0 µA at VR = 0.75 V, supporting low-power standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.28 V to 2.52 V at IZ = 5 mA - ensures stable 2.4 V reference within ±5 % across production lot |
| Differential Resistance (rdiff) | 275 Ω typical at IZ = 5 mA - minimizes output voltage shift under load variation |
| Temperature Coefficient (SZ) | −3.5 to −1.3 mV/K - enables predictable drift compensation in temperature-sensitive analog circuits |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 with 35 mm² cathode copper - defines continuous operating limit in standard PCB layout |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs square wave - protects downstream circuitry from ESD or transient overvoltage events |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - supports use as low-drop rectifier or clamp in bidirectional signal paths |
| Junction-to-Solder Thermal Resistance | 65 K/W - allows accurate thermal modeling when cathode tab is soldered directly to PCB copper pour |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead surface-mount package: 1.25 mm × 0.85 mm body, 0.65 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - reverse-biased during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SOD523 footprint | Enables placement in high-density layouts where board space is constrained to < 1.1 mm² per device |
| ±5 % Zener voltage tolerance | Reduces need for post-assembly trimming in cost-sensitive consumer power management circuits |
| Low 275 Ω differential resistance | Maintains voltage stability within ±20 mV under ±5 mA load current variation at 2.4 V output |
| 40 W surge capability | Withstands IEC 61000-4-2 Level 4 ESD (±8 kV contact) without external TVS supplementation |
| −3.5 to −1.3 mV/K tempco | Allows predictable bias-point adjustment in op-amp reference networks operating from −40 °C to +85 °C |
Applications
| USB Port Overvoltage Clamp | Low-Voltage Microcontroller Reset Circuit |
|---|---|
Use Scenario: Protecting USB 2.0 data lines and VBUS against accidental 5 V overvoltage or hot-plug transients. IC Role / Device Role / Timing Role: Zener clamps VBUS to 2.4 V during fault, limiting stress on USB PHY and ESD diodes. Use Value: Prevents latch-up in connected SoCs by holding fault voltage below 2.5 V for >100 µs, leveraging 40 W surge rating. |
Use Scenario: Generating a precise 2.4 V threshold for brown-out detection in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Provides stable reference to comparator input; anode grounded, cathode tied to supply via current-limiting resistor. Use Value: Enables reset assertion at 2.35–2.52 V with < 50 mV hysteresis, meeting ARM Cortex-M0+ BOD requirements. |
| Li-ion Battery Cell Monitor Reference | Industrial Sensor Signal Conditioning |
Use Scenario: Biasing ADC input range for single-cell Li-ion voltage measurement (2.5–4.2 V range). IC Role / Device Role / Timing Role: Supplies 2.4 V reference to op-amp gain stage, scaling cell voltage to 0–3.3 V full-scale. Use Value: Achieves < 0.5 % full-scale error over −20 °C to +70 °C due to low rdiff and known tempco. |
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in HVAC pressure transducers. IC Role / Device Role / Timing Role: Regulates 2.4 V excitation rail feeding Wheatstone bridge; low noise and tempco minimize offset drift. Use Value: Limits bridge output drift to < 15 µV/°C, meeting Class A industrial accuracy standards (IEC 61000-4-5 compliant). |
Availability
BZX585-C2V4,115 is available at Aetrix Electronics and suitable for USB protection, microcontroller reset generation, Li-ion battery monitoring, and industrial sensor excitation requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for BZX585-C2V4,115 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 leading global semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, energy-efficient logic, discrete, and MOSFET devices for automotive, industrial, and consumer applications.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, reliable voltage regulation and transient suppression in space-constrained, cost-sensitive designs across portable electronics and industrial control systems.
FAQ
What is the maximum continuous reverse current for BZX585-C2V4,115?
The device supports a maximum continuous forward current of 200 mA per Absolute Maximum Ratings (Table 5), but its Zener operation is specified at test currents up to 5 mA for voltage regulation. At IZ = 5 mA, it maintains 2.4 V ±5 % with 275 Ω differential resistance; sustained operation above 5 mA requires thermal derating based on Ptot = 300 mW and Rth(j-a) = 350 K/W.
How does the cathode marking appear on the SOD523 package?
The cathode is identified by a visible bar printed on the top surface of the SOD523 package, aligned with Pin 1 per Table 2 and Figure 11. This marking corresponds to the cathode terminal (K), which must be connected to the higher-potential node during Zener operation - consistent with the simplified outline showing "1 K" adjacent to the bar.
Can BZX585-C2V4,115 replace BZX585-B2V4 in existing designs?
Yes, both share identical SOD523 package, pinout, and thermal characteristics, but differ in voltage tolerance: BZX585-C2V4 offers ±5 % (2.28–2.52 V), while BZX585-B2V4 provides tighter ±2 % (2.35–2.45 V). Substitution is acceptable where system-level tolerance budgets allow ±5 %, such as non-critical biasing or clamping functions.
What is the typical reverse leakage current at 1.0 V reverse bias?
At VR = 1.0 V and Tj = 25 °C, the typical reverse leakage current is ≤ 50.0 µA (Table 8), with maximum specified at 100 µA. This low leakage supports use in high-impedance reference divider networks where current draw must remain below 100 nA per branch in ultra-low-power sleep modes.
BZX585-C2V4,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX585-C2V4,115 FAQ
1.How can I place an order for BZX585-C2V4,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C2V4,115 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 BZX585-C2V4,115 reliable?
The price and inventory of BZX585-C2V4,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C2V4,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C2V4,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C2V4,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C2V4,115?
BZX585-C2V4,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C2V4,115 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 BZX585-C2V4,115?
For technical support, including BZX585-C2V4,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C2V4,115 requirements.
6.How does Aetrix verify that BZX585-C2V4,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C2V4,115 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 BZX585-C2V4,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C2V4,115?
All BZX585-C2V4,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C2V4,115, 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 BZX585-C2V4,115 part is unused and in its original packaging.
Return procedure for BZX585-C2V4,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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