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Nexperia USA Inc. BZX585-C5V1,115
- Part No.:
- BZX585-C5V1,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C5V1,115.pdf
- Description:
- DIODE ZENER 5.1V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:6,701
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Product details
Overview
BZX585-C5V1,115 from Nexperia is a 5.1 V ±5 % tolerance Zener diode in SOD523 (SC-79) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision voltage regulation and overvoltage protection in low-power analog and digital supply rails.
For engineers reviewing the BZX585-C5V1,115 datasheet, BZX585-C5V1,115 pinout, BZX585-C5V1,115 application, or BZX585-C5V1,115 equivalent, key selection criteria include Zener voltage tolerance, differential resistance (400 Ω at IZ = 5 mA), thermal resistance (65 K/W junction-to-solder point), cathode-marked ultra-small SMD footprint, and surge capability under 100 µs square-wave pulses.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 5.1 V reference across load variations, with temperature coefficient of −0.5 to +1.2 mV/K at IZ = 5 mA - enabling predictable drift compensation in bias networks. Its low 400 Ω differential resistance ensures minimal output impedance under nominal 5 mA test current.
The device uses planar epitaxial silicon construction with metallized cathode termination, optimized for reflow soldering on FR4 PCBs with ≥35 mm² copper area at the cathode tab. Junction-to-solder-point thermal resistance of 65 K/W supports reliable operation up to 150 °C junction temperature under pulsed conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.85 V to 5.36 V at IZ = 5 mA - defines regulated output range for low-voltage reference circuits |
| Differential Resistance (rdiff) | 400 Ω (typ) at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤ 2.0 µA at VR = 3.0 V - ensures low leakage in standby or high-impedance sensing nodes |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 with 35 mm² Cu - sets continuous DC power handling limit |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs, square wave - enables transient overvoltage clamping without failure |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - relevant for polarity-check or series-forward protection configurations |
| Junction-to-Solder-Point Rth | 65 K/W - quantifies thermal path efficiency from die to PCB, critical for pulse reliability |
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; designed for high-density PCB layouts and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path for voltage reference operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective regulation where tight initial accuracy is sufficient without trimming |
| 40 W non-repetitive peak power rating | Supports robust ESD and surge suppression in I/O protection circuits per IEC 61000-4-2 Level 4 |
| 65 K/W junction-to-solder-point thermal resistance | Allows safe dissipation of short-duration transients without requiring large copper pours |
| Low 2.0 µA reverse leakage at 3.0 V | Minimizes quiescent current in battery-powered voltage monitor or reset circuits |
| SOD523 package footprint (1.25 × 0.85 mm) | Reduces board space by >50 % vs. SOD323, enabling miniaturization in wearables and IoT sensors |
Applications
| Power Supply Rail Clamp | Reference Voltage Source |
|---|---|
Use Scenario: Clamping 5 V logic supply against ESD or inductive kickback in microcontroller I/O buffers. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp voltage excursions above 5.1 V. Use Value: Limits transient overvoltage to <5.5 V using 40 W surge rating, protecting downstream CMOS inputs without adding series resistance. |
Use Scenario: Providing stable 5.1 V reference for ADC biasing or comparator threshold in sensor signal conditioning. IC Role / Device Role / Timing Role: Precision shunt regulator establishing fixed reference potential independent of load current up to 5 mA. Use Value: Delivers 400 Ω dynamic impedance and −0.5 to +1.2 mV/K tempco, enabling <±10 mV drift over 0–70 °C ambient. |
| Overvoltage Protection Circuit | Low-Power Bias Network |
Use Scenario: Safeguarding USB VBUS line against accidental 12 V connection in portable accessories. IC Role / Device Role / Timing Role: Primary shunt element triggered when input exceeds 5.1 V, diverting fault current to ground. Use Value: Withstands 40 W surges (100 µs) and limits clamped voltage to ≤5.4 V, meeting USB-IF overvoltage immunity requirements. |
Use Scenario: Setting gate bias for low-current MOSFET switches in always-on subsystems. IC Role / Device Role / Timing Role: Provides stable gate drive voltage while drawing only 2.0 µA leakage at 3.0 V reverse bias. Use Value: Enables sub-µA standby current in battery-backed circuits due to ultra-low IR specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B5V1,115 | ±2 % tolerance (vs. ±5 %), higher cost, tighter VZ spread (4.90–5.10 V) | Required where initial accuracy <±20 mV is mandatory, e.g., precision DAC references | Select when tighter tolerance justifies premium pricing and board-level calibration is impractical |
| MMSZ5231B-7-F | Same 5.1 V nominal, SOD-123 package (2.7 × 1.4 mm), 500 mW Ptot, higher rdiff (600 Ω) | Preferred for manual assembly or legacy footprints; less suitable for ultra-dense layouts | Choose when larger package improves solder joint reliability or matches existing SOD-123 land patterns |
Compared with BZX585-C5V1,115, the BZX585-B5V1,115 offers superior initial accuracy at the expense of cost and yield sensitivity, while MMSZ5231B-7-F trades miniaturization for higher power handling and relaxed thermal constraints in less space-constrained designs.
Availability
BZX585-C5V1,115 is available at Aetrix Electronics and suitable for power supply rail clamping, reference voltage sourcing, overvoltage protection circuits, and low-power bias networks requiring stable component supply and consistent parametric performance across production lots.
Supply support for BZX585-C5V1,115 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, with leadership in automotive-qualified and industrial-grade components.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, cost-efficient voltage regulation and transient suppression in consumer, computing, and industrial electronics.
FAQ
What is the maximum continuous reverse current this Zener can handle?
The BZX585-C5V1,115 has no specified maximum continuous reverse current; its DC operation is limited by total power dissipation of 300 mW at 25 °C ambient. At 5.1 V, this corresponds to ~59 mA average Zener current. Exceeding this causes junction temperature rise beyond safe limits unless board-level thermal design compensates.
Can this diode be used in series with another Zener for higher voltage reference?
Yes - stacking multiple BZX585-C5V1,115 diodes in series yields additive Zener voltages (e.g., two in series ≈ 10.2 V), but tolerance accumulates (±5 % each → ±7.1 % total), and thermal coupling between devices affects stability. Differential resistance also sums linearly, increasing output impedance.
Is the SOD523 package compatible with standard reflow profiles?
Yes - the SOD523 package is qualified for lead-free reflow per JEDEC J-STD-020. Recommended peak temperature is 260 °C for ≤30 seconds; solder land pattern matches IPC-7351B SOIC-2 density, with 0.5 mm pad width and 1.4 mm center-to-center spacing per Figure 12 in the datasheet.
How does temperature affect regulation accuracy in practical use?
At IZ = 5 mA, the BZX585-C5V1,115 exhibits a temperature coefficient of −0.5 to +1.2 mV/K. Over a 70 °C range (−25 to +45 °C), this produces up to ±84 mV drift - acceptable for non-critical biasing but insufficient for metrology-grade references without external compensation.
BZX585-C5V1,115 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):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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-C5V1,115 FAQ
1.How can I place an order for BZX585-C5V1,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C5V1,115 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-C5V1,115 reliable?
The price and inventory of BZX585-C5V1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C5V1,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C5V1,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C5V1,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C5V1,115?
BZX585-C5V1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C5V1,115 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-C5V1,115?
For technical support, including BZX585-C5V1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C5V1,115 requirements.
6.How does Aetrix verify that BZX585-C5V1,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C5V1,115 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-C5V1,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C5V1,115?
All BZX585-C5V1,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C5V1,115, 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-C5V1,115 part is unused and in its original packaging.
Return procedure for BZX585-C5V1,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-C5V1,115 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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