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Nexperia USA Inc. BZX585-C4V7,115
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- Part No.:
- BZX585-C4V7,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C4V7,115.pdf
- Description:
- DIODE ZENER 4.7V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:3,320
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Product details
Overview
BZX585-C4V7,115 from Nexperia is a ±5 % tolerance Zener diode in SOD523 (SC-79) package, rated for 4.7 V nominal regulation voltage at 5 mA, with 300 mW total power dissipation and 425 Ω typical differential resistance at IZ = 5 mA - used for precision low-power voltage reference and overvoltage clamping in space-constrained consumer and industrial power rails.
For engineers reviewing the BZX585-C4V7,115 datasheet, BZX585-C4V7,115 pinout, BZX585-C4V7,115 application, or BZX585-C4V7,115 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (Rth(j-sp) = 65 K/W), non-repetitive surge capability (40 W @ 100 µs), and cathode-marked SOD523 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its ±5 % tolerance and −1.2 mV/K temperature coefficient at IZ = 5 mA enable predictable regulation in ambient ranges from −65 °C to +150 °C.
The device features ultra-low thermal resistance from junction to solder point (65 K/W), enabling reliable operation on FR4 PCBs with minimal copper area. Its 40 W non-repetitive peak reverse power rating supports transient suppression in low-energy surge events without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.47 V to 4.94 V at IZ = 5 mA - defines tight regulation window for 4.7 V nominal reference |
| Tolerance | ±5 % - specifies maximum deviation from nominal voltage under standard test conditions |
| Differential Resistance (rdiff) | 425 Ω typical at IZ = 5 mA - determines output impedance and regulation sensitivity to current changes |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets continuous DC power limit on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - enables short-duration transient clamping without permanent damage |
| Thermal Resistance (Rth(j-sp)) | 65 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal design margining |
| Reverse Current (IR) | ≤3.0 µA at VR = 3.0 V - ensures low leakage in standby or high-impedance bias networks |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead surface-mount package with 2-terminal configuration and cathode band marking on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marked by visible bar on package top; carries reverse-biased current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SOD523 footprint | 1.25 mm × 0.85 mm body with 0.65 mm lead pitch - enables placement in <1 mm² board area for wearables and IoT sensors |
| Low differential resistance | 425 Ω typical at 5 mA - minimizes output voltage shift under load variation in reference circuits |
| Controlled temperature coefficient | −1.2 mV/K at IZ = 5 mA - reduces drift-induced error in temperature-sensitive analog signal chains |
| High surge robustness | 40 W non-repetitive peak power at 100 µs - provides single-event transient immunity without external TVS staging |
| Low leakage performance | ≤3.0 µA at 3.0 V reverse bias - preserves battery life in always-on monitoring circuits |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Circuit Reference |
|---|---|
|
Use Scenario: Clamping 5 V USB supply rail against ESD or hot-plug transients exceeding 5.5 V. IC Role / Device Role / Timing Role: Zener diode acts as shunt regulator and voltage clamp, diverting excess energy to ground before IC input damage occurs. Use Value: 40 W surge rating absorbs IEC 61000-4-2 Level 4 ESD pulses without degradation; ±5 % tolerance ensures clamping stays within USB 2.0 spec limits. |
Use Scenario: Providing stable 4.7 V reference to microcontroller reset supervisor IC (e.g., MAX809). IC Role / Device Role / Timing Role: Functions as precision voltage reference source for threshold detection in power-on reset generation. Use Value: 425 Ω rdiff and −1.2 mV/K TC ensure reset threshold remains within ±2 % over −40 °C to +85 °C operating range. |
| Low-Power Sensor Bias Network | LED Current Regulation Reference |
|
Use Scenario: Generating stable bias voltage for analog sensor front-end amplifiers in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Supplies regulated voltage to op-amp reference inputs and sensor excitation circuitry. Use Value: 3.0 µA max reverse leakage at 3.0 V prevents measurable drain on coin-cell batteries over multi-year deployments. |
Use Scenario: Setting reference voltage for constant-current LED driver IC feedback loop in indicator lighting modules. IC Role / Device Role / Timing Role: Provides fixed reference to current-sense amplifier, enabling accurate LED current control independent of supply variation. Use Value: 300 mW Ptot and 65 K/W Rth(j-sp) allow continuous operation at 10 mA Zener current without derating on minimal copper PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B4V7,115 | ±2 % tolerance vs. ±5 %; identical VZ range and package | Higher precision required in metrology-grade references where 0.1 V tolerance matters | Select when tighter voltage accuracy outweighs cost premium and availability constraints |
| MMSZ4705T1G | Same 4.7 V nominal, ±5 %, but SOD-123 package (2.7 × 1.6 mm) and 500 mW Ptot | Higher power handling needed for >15 mA continuous Zener current or higher ambient temperatures | Choose when thermal margin or legacy SOD-123 footprint compatibility is prioritized over size reduction |
Compared with BZX585-B4V7,115, this part trades precision for broader availability and lower unit cost; versus MMSZ4705T1G, it sacrifices 200 mW power headroom to achieve 60 % smaller board area and improved high-frequency decoupling due to lower parasitic capacitance.
Availability
BZX585-C4V7,115 is available at Aetrix Electronics and suitable for USB protection circuits, microcontroller reset references, low-power sensor bias networks, and LED current regulation requiring stable component supply across high-mix, low-volume production runs.
Supply support for BZX585-C4V7,115 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 logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in consumer, industrial, and automotive electronics.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for compact, low-power voltage regulation and transient suppression in space-constrained portable and embedded systems.
FAQ
What is the maximum continuous forward current rating for BZX585-C4V7,115?
The device is not intended for continuous forward conduction; its absolute maximum forward current is 200 mA per limiting values table, but forward operation is limited to brief pulse testing (tp ≤ 300 µs). In normal use, it operates exclusively in reverse-bias Zener mode.
Can BZX585-C4V7,115 be used in place of a 5.1 V Zener diode?
No - its nominal Zener voltage is 4.7 V with guaranteed range 4.47 V to 4.94 V at 5 mA. Substituting it for a 5.1 V device would result in undershoot of the target regulation voltage by ≥150 mV, potentially causing system malfunction in voltage-critical circuits.
How does the SOD523 package affect thermal performance compared to SOD-123?
The SOD523 package has higher thermal resistance (Rth(j-a) = 350 K/W vs. ~250 K/W for SOD-123), but its lower Rth(j-sp) = 65 K/W improves heat transfer directly to the PCB solder joint - making it more effective for localized thermal relief in dense layouts despite smaller size.
Is BZX585-C4V7,115 suitable for automotive applications?
No - this part is not AEC-Q200 qualified, lacks automotive-grade screening, and is explicitly designated for industrial and consumer use only. Nexperia's automotive-qualified Zener alternatives (e.g., PZUx series) must be selected for vehicle-mounted systems.
BZX585-C4V7,115 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):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 3 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-C4V7,115 FAQ
1.How can I place an order for BZX585-C4V7,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C4V7,115 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-C4V7,115 reliable?
The price and inventory of BZX585-C4V7,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C4V7,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C4V7,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C4V7,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C4V7,115?
BZX585-C4V7,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C4V7,115 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-C4V7,115?
For technical support, including BZX585-C4V7,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C4V7,115 requirements.
6.How does Aetrix verify that BZX585-C4V7,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C4V7,115 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-C4V7,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C4V7,115?
All BZX585-C4V7,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C4V7,115, 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-C4V7,115 part is unused and in its original packaging.
Return procedure for BZX585-C4V7,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-C4V7,115 Tags
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