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Nexperia USA Inc. BZX585-C3V6,115
- Part No.:
- BZX585-C3V6,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C3V6,115.pdf
- Description:
- DIODE ZENER 3.6V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,995
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Product details
Overview
BZX585-C3V6,115 from Nexperia is a ±5 % tolerance Zener diode in SOD523 (SC-79) package, rated for 3.6 V nominal Zener voltage at 5 mA, with 375 Ω typical differential resistance and 5.0 µA maximum reverse current at 1.0 V, used for precision low-power voltage regulation in space-constrained consumer and industrial power rails.
For engineers reviewing the BZX585-C3V6,115 datasheet, BZX585-C3V6,115 pinout, BZX585-C3V6,115 application, or BZX585-C3V6,115 equivalent, this device serves as a compact, thermally efficient voltage reference in battery-powered sensors, USB peripheral protection circuits, and microcontroller reset supervision where tight voltage tolerance and ultra-small footprint are critical.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable output voltage under varying load and temperature conditions. Its ±5 % tolerance and −1.9 mV/K temperature coefficient at 5 mA enable predictable regulation across −65 °C to +150 °C junction temperature range.
The device features low thermal resistance (65 K/W junction-to-solder-point) and supports non-repetitive surge handling up to 40 W for 100 µs pulses, making it suitable for transient suppression in low-energy signal paths without requiring external heat sinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.42 V to 3.78 V at IZ = 5 mA - defines regulation window for precision biasing |
| Differential Resistance (rdiff) | 375 Ω typical at IZ = 5 mA - determines output impedance and load regulation error |
| Reverse Current (IR) | ≤ 5.0 µA at VR = 1.0 V - ensures minimal leakage in standby power domains |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 PCB with 35 mm² copper - sets continuous DC power limit |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs square wave - enables short-duration overvoltage clamping |
| Forward Voltage (VF) | 1.1 V at IF = 100 mA - relevant for polarity-check or ESD path conduction |
| Junction-to-Solder-Point Rth | 65 K/W - allows accurate thermal modeling when mounted on standard PCB pads |
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; reverse-biased terminal during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reference return path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SMD footprint | SOD523 package (1.25 × 0.85 mm) enables placement in high-density PCB layouts |
| Low differential resistance | 375 Ω typical improves regulation stability against load current variation |
| Controlled temperature coefficient | −1.9 mV/K at 5 mA minimizes drift over industrial temperature range |
| High surge robustness | 40 W non-repetitive peak power withstands brief transients without degradation |
| Low leakage performance | 5.0 µA max reverse current at 1.0 V reduces quiescent power loss in always-on circuits |
Applications
| USB Port Overvoltage Clamp | Microcontroller Reset Threshold Reference |
|---|---|
Use Scenario: Clamps transient voltage spikes on USB VBUS line during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp voltage at ≤3.78 V, protecting downstream USB PHY and LDO. Use Value: Prevents latch-up or damage to 3.3 V logic interfaces while consuming zero static current below clamp threshold. |
Use Scenario: Provides precise 3.6 V reference for RC-based reset circuit timing in MCU power-up sequencing. IC Role / Device Role / Timing Role: Stable Zener voltage sets threshold for reset supervisor comparator input. Use Value: Enables deterministic reset assertion within ±5 % tolerance, independent of supply ramp rate or temperature drift. |
| Low-Power Sensor Bias Supply | IoT Node Battery Voltage Monitor |
Use Scenario: Generates stable 3.6 V bias for analog front-end op-amps in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant voltage across sensor signal conditioning stage. Use Value: Delivers <1 µA quiescent current draw and <10 mV regulation error across 10 µA–5 mA load range. |
Use Scenario: Monitors lithium coin-cell voltage decay by comparing cell voltage against 3.6 V Zener reference via ADC input divider. IC Role / Device Role / Timing Role: Precision voltage reference enabling accurate state-of-charge estimation in energy-harvesting nodes. Use Value: Achieves ±0.1 V measurement accuracy over −20 °C to +70 °C ambient due to matched thermal coefficient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B3V6,115 | ±2 % tolerance (vs. ±5 %), tighter 3.53–3.67 V range, higher cost | Better suited for high-accuracy references where 10 mV tolerance is required | Select when regulation precision outweighs cost sensitivity and board space is not constrained |
| MMSZ5226B-7-F | SOD-123 package (2.7 × 1.6 mm), 3.3 V nominal, ±5 %, 100 mW Ptot | Larger footprint and lower power rating limit use in ultra-dense or higher-current designs | Choose only if legacy SOD-123 layout compatibility is mandatory and thermal margin permits lower dissipation |
Compared with BZX585-B3V6,115, this part trades absolute voltage accuracy for lower unit cost and identical packaging; versus MMSZ5226B-7-F, it delivers 3× higher power handling and 40 % smaller footprint-critical for miniaturized portable electronics.
Availability
BZX585-C3V6,115 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset supervision, and low-power sensor biasing requiring stable component supply and long-term obsolescence management.
Supply support for BZX585-C3V6,115 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 with focus on efficiency, miniaturization, and automotive-grade reliability.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, thermally efficient voltage regulation in space- and power-constrained consumer and industrial electronics.
FAQ
What is the maximum continuous reverse current this Zener can sustain?
The BZX585-C3V6,115 has a maximum total power dissipation of 300 mW at 25 °C ambient. At its nominal 3.6 V Zener voltage, this corresponds to a continuous reverse current limit of approximately 83 mA (300 mW ÷ 3.6 V). Derating applies above 25 °C per the 350 K/W junction-to-ambient thermal resistance.
How does the cathode marking appear on the SOD523 package?
The cathode is indicated by a visible bar printed on the top surface of the SOD523 package, aligned with Pin 1. The physical outline shows Pin 1 (cathode) on the left and Pin 2 (anode) on the right when viewing the marking side with the bar oriented horizontally at the top edge.
Can this Zener be used in series for higher voltage regulation?
Yes-multiple BZX585-C3V6,115 diodes may be connected in series to achieve higher composite Zener voltages (e.g., two in series yield ~7.2 V). However, mismatched temperature coefficients and tolerances will compound, and total power dissipation must remain within the 300 mW per-device limit under worst-case current sharing.
Is this device suitable for automotive applications?
No-BZX585-C3V6,115 is not AEC-Q200 qualified and lacks automotive-grade screening, extended temperature validation, or guaranteed PPAP documentation. It is specified for industrial and consumer use only, with operating junction temperature limited to 150 °C but no automotive qualification testing performed.
BZX585-C3V6,115 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):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-C3V6,115 FAQ
1.How can I place an order for BZX585-C3V6,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C3V6,115 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-C3V6,115 reliable?
The price and inventory of BZX585-C3V6,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C3V6,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C3V6,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C3V6,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C3V6,115?
BZX585-C3V6,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C3V6,115 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-C3V6,115?
For technical support, including BZX585-C3V6,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C3V6,115 requirements.
6.How does Aetrix verify that BZX585-C3V6,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C3V6,115 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-C3V6,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C3V6,115?
All BZX585-C3V6,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C3V6,115, 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-C3V6,115 part is unused and in its original packaging.
Return procedure for BZX585-C3V6,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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