Nexperia USA Inc. BZX585-C5V6,135
- Part No.:
- BZX585-C5V6,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C5V6,135.pdf
- Description:
- DIODE ZENER 5.6V 300MW SOD523
- Quantity:
- Payment:

- Shipping:

Inventory:7,851
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Product details
Overview
BZX585-C5V6,135 from Nexperia is a 5.6 V ±5 % Zener voltage regulator diode in an SOD523 (SC-79) ultra-small surface-mount package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision low-power voltage reference and overvoltage protection in space-constrained consumer and industrial circuits.
For engineers reviewing the BZX585-C5V6,135 datasheet, BZX585-C5V6,135 pinout, BZX585-C5V6,135 application, or BZX585-C5V6,135 equivalent, this part delivers stable 5.6 V regulation at 5 mA with 80 Ω typical differential resistance, low 1.0 µA reverse current at 3.0 V, and −2.0 to +1.0 mV/K temperature coefficient - critical for battery-powered sensor nodes and portable power management.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode–anode terminals under controlled current conditions. Its 5.6 V nominal Zener voltage is specified at IZ = 5 mA with ±5 % tolerance and exhibits a low 80 Ω typical differential resistance (rdiff) at that bias point.
The device features a thermal resistance of 65 K/W from junction to solder point and 350 K/W to ambient on FR4 PCB, enabling reliable operation up to 150 °C junction temperature. Its 1.0 V forward voltage at 100 mA supports use as a low-drop clamp in bidirectional protection schemes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.32 V to 5.88 V at IZ = 5 mA - defines stable regulation window for 5 V rail supervision |
| Differential Resistance (rdiff) | 80 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤ 1.0 µA at VR = 3.0 V - ensures minimal leakage in standby power paths |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets maximum continuous DC power handling on standard PCB layout |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 µs - enables transient surge suppression for ESD and inductive kick events |
| Forward Voltage (VF) | 1.1 V max at IF = 100 mA - supports use as series clamp or polarity protection element |
| Temperature Coefficient (SZ) | −2.0 to +1.0 mV/K - quantifies voltage drift over operating temperature range |
Pinout & Package
SOD523 (SC-79) ultra-small flat-lead plastic package: 1.25 mm × 0.85 mm footprint, 0.65 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential reference; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD packaging | SOD523 footprint (1.25 × 0.85 mm) enables placement in dense portable PCB layouts |
| Stable Zener voltage tolerance | ±5 % at IZ = 5 mA ensures predictable regulation without trimming circuitry |
| Low differential resistance | 80 Ω typical improves load regulation and reduces output voltage variation under current change |
| Controlled temperature coefficient | −2.0 to +1.0 mV/K minimizes drift in 0 °C to 70 °C ambient operating range |
| High surge capability | 40 W non-repetitive peak power supports transient clamping per IEC 61000-4-2 Level 4 |
Applications
| USB Port Overvoltage Protection | Low-Power Sensor Reference |
|---|---|
Use Scenario: Clamping 5 V USB supply against hot-swap transients and adapter overvoltage. IC Role / Device Role / Timing Role: Zener diode placed between VBUS and GND to shunt excess energy above 5.6 V. Use Value: Limits voltage excursion to ≤5.88 V with <1 µA leakage at 3 V, preserving USB PHY integrity. |
Use Scenario: Providing stable 5.6 V reference for ADC biasing in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Reverse-biased Zener supplying fixed voltage to op-amp input stage. Use Value: Delivers 5.6 V ±5 % with 80 Ω rdiff, reducing reference error contribution to <0.1 % FS in 12-bit systems. |
| Microcontroller Reset Circuit | LED Current Regulation |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers using resistor-Zener divider. IC Role / Device Role / Timing Role: Zener referenced to VCC to trigger reset IC when supply drops below 4.5 V. Use Value: 1.0 µA IR at 3.0 V prevents false triggering; −2.0 to +1.0 mV/K ensures stability across −40 °C to +85 °C. |
Use Scenario: Setting constant current for indicator LEDs in wearables via Zener-based current source. IC Role / Device Role / Timing Role: Cathode tied to LED anode, anode grounded, with series resistor defining current. Use Value: 5.6 V regulation enables precise 10–20 mA LED drive with <2 % current variation over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B5V6,135 | ±2 % tolerance vs. ±5 %; 400 Ω max rdiff at 5 mA vs. 80 Ω typical | Higher precision required where 5.6 V stability >0.1 % matters; less suitable for low-current sensing | Select for tighter voltage control in calibration references; avoid where low dynamic impedance is critical |
| MMSZ5232B-7-F | 5.6 V ±5 %, SOD-123 package (2.7 × 1.4 mm), 500 mW Ptot, 100 Ω rdiff | Larger footprint and higher power rating suit higher-current or thermally demanding designs | Choose when board space allows larger package and 500 mW continuous dissipation is needed |
Compared with BZX585-C5V6,135, the BZX585-B5V6,135 offers tighter voltage tolerance but higher dynamic impedance, while MMSZ5232B-7-F provides greater power headroom in a larger package - making the C-grade optimal for compact, low-leakage, medium-precision regulation.
Availability
BZX585-C5V6,135 is available at Aetrix Electronics and suitable for USB port protection, low-power sensor references, microcontroller reset circuits, and LED current regulation requiring stable component supply and consistent parametric performance.
Supply support for BZX585-C5V6,135 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, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality standards.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, cost-effective voltage regulation and transient suppression in space-constrained, low-power applications.
FAQ
What is the maximum continuous reverse current for BZX585-C5V6,135?
The device has no specified maximum continuous reverse current; instead, it is rated for 300 mW total power dissipation at 25 °C ambient. At its 5.6 V Zener voltage, this corresponds to a maximum continuous Zener current of approximately 53.6 mA (300 mW ÷ 5.6 V), assuming full power is allocated to reverse conduction.
Can BZX585-C5V6,135 be used in series for higher voltage regulation?
No - the BZX585-C5V6,135 is not characterized or guaranteed for series operation. Zener tolerances, temperature coefficients, and dynamic impedances vary between units, causing uneven voltage division and potential thermal runaway. Dedicated higher-voltage Zeners or active regulators are recommended instead.
How does the SOD523 package affect thermal performance?
The SOD523 package delivers Rth(j-sp) = 65 K/W to the cathode solder point, enabling effective heat transfer to PCB copper. However, its small size limits Rth(j-a) to 350 K/W in free air, so sustained power dissipation above ~100 mW requires careful copper pour design and airflow consideration.
Is BZX585-C5V6,135 suitable for automotive applications?
No - this part is not AEC-Q200 qualified and lacks automotive-grade screening, temperature validation beyond 150 °C junction, or extended reliability testing. Nexperia explicitly states non-automotive qualification in the legal disclaimers; automotive designs require AEC-Q200-compliant Zeners such as PZTA44 or BZX84-A5V6.
BZX585-C5V6,135 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):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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-C5V6,135 FAQ
1.How can I place an order for BZX585-C5V6,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C5V6,135 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-C5V6,135 reliable?
The price and inventory of BZX585-C5V6,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C5V6,135 is usually 5 days.
3.What payment methods are accepted for BZX585-C5V6,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C5V6,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C5V6,135?
BZX585-C5V6,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C5V6,135 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-C5V6,135?
For technical support, including BZX585-C5V6,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C5V6,135 requirements.
6.How does Aetrix verify that BZX585-C5V6,135 is sourced from the original manufacturer or authorized distributors?
All BZX585-C5V6,135 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-C5V6,135 meets industry standards.
7.What is the process for return or replacement of BZX585-C5V6,135?
All BZX585-C5V6,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C5V6,135, 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-C5V6,135 part is unused and in its original packaging.
Return procedure for BZX585-C5V6,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-C5V6,135 Tags

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