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Nexperia USA Inc. BZX585-C6V8,115
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- Part No.:
- BZX585-C6V8,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C6V8,115.pdf
- Description:
- DIODE ZENER 6.8V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,087
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Product details
Overview
BZX585-C6V8,115 from Nexperia is a 6.8 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-power voltage reference and overvoltage clamping in space-constrained consumer and industrial power rails.
For engineers reviewing the BZX585-C6V8,115 datasheet, BZX585-C6V8,115 pinout, BZX585-C6V8,115 application, or BZX585-C6V8,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (30 Ω at IZ = 5 mA), thermal resistance (65 K/W junction-to-solder point), and ultra-small SOD523 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 6.8 V regulation across 1–5 mA test currents, with low 30 Ω differential resistance ensuring minimal voltage shift under load variation. Its temperature coefficient of +1.2 to +3.0 mV/K (at IZ = 5 mA) supports predictable drift behavior in ambient temperature ranges from −65 °C to +150 °C.
The device features a cathode-marked SOD523 package optimized for reflow soldering, with thermal resistance from junction to solder point at 65 K/W-enabling reliable operation on FR4 PCBs with ≥35 mm² copper area at the cathode tab, and supporting transient surge handling up to 40 W for 100 µs square-wave pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.46 V to 7.14 V at IZ = 5 mA - defines nominal regulation point with ±5 % tolerance for stable reference in low-current bias networks |
| Differential Resistance (rdiff) | 30 Ω (typ) at IZ = 5 mA - ensures <200 mV output shift across ±1 mA load change, critical for precision analog references |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C - sets maximum continuous DC power limit on standard FR4 PCB with 35 mm² cathode copper |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs - enables robust transient suppression against ESD or switching spikes without degradation |
| Forward Voltage (VF) | 1.1 V at IF = 100 mA - confirms low-loss conduction in series protection configurations during fault conditions |
| Junction Temperature Range (Tj) | −65 °C to +150 °C - supports operation in extended industrial and automotive-adjacent environments |
| Reverse Current (IR) | 2.0 µA max at VR = 4.5 V - guarantees low leakage in standby or battery-backed circuits |
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 end face; designed for automated placement and reflow soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse breakdown current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path enabling Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SOD523 footprint | Enables placement in <1.1 mm² board area-ideal for wearables, IoT sensors, and miniaturized power management ICs |
| ±5 % Zener voltage tolerance | Guarantees regulation within 6.46–7.14 V at 5 mA, suitable for cost-sensitive applications where tight tolerance is not mandatory |
| Low 30 Ω differential resistance | Minimizes output voltage deviation under dynamic load changes, improving stability in feedback reference paths |
| 65 K/W junction-to-solder-point thermal resistance | Allows direct thermal coupling to PCB copper, enabling reliable 300 mW operation without heatsinking on standard FR4 |
| 40 W non-repetitive surge rating | Withstands short-duration transients (e.g., IEC 61000-4-2 ESD contact discharge) without parametric shift or failure |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Circuit Reference |
|---|---|
|
Use Scenario: Clamping 5 V USB VBUS line against accidental 12 V insertion or LDO dropout overshoot. IC Role / Device Role / Timing Role: Zener acts as shunt regulator, conducting excess current when voltage exceeds 6.8 V to protect downstream USB PHY and PMIC. Use Value: Prevents latch-up or damage to 5 V-tolerant I/O with <2 µA leakage below 4.5 V and 40 W surge absorption capability. |
Use Scenario: Providing stable reset threshold for ARM Cortex-M0+ microcontrollers operating from 3.3 V supply. IC Role / Device Role / Timing Role: Forms precision voltage divider with resistor to generate 2.4 V reset trigger point referenced to 6.8 V Zener output. Use Value: Enables accurate 2.4 V reset threshold with ±5 % Zener tolerance and <30 Ω rdiff, reducing reset window uncertainty vs. internal bandgap references. |
| Low-Power Sensor Bias Supply | ADC Reference Stabilization |
|
Use Scenario: Generating clean 6.8 V bias for MEMS pressure sensor excitation in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Supplies regulated excitation voltage; operates at 100 µA quiescent current to extend coin-cell life. Use Value: Delivers <10 mV ripple at 100 µA load due to low rdiff and 2 µA IR, improving sensor full-scale accuracy by >0.5 %FS. |
Use Scenario: Stabilizing reference input of 12-bit SAR ADC in portable medical pulse oximeter. IC Role / Device Role / Timing Role: Replaces noisy LDO output with low-noise Zener-derived 6.8 V reference scaled to 2.5 V via resistor divider. Use Value: Reduces reference noise floor by 40 % vs. LDO alone, enabling <1 LSB INL error at 12-bit resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B6V8,115 | ±2 % Zener tolerance (6.66–6.94 V) vs. ±5 %; otherwise identical package, power ratings, and thermal specs | Required where tighter regulation (e.g., precision ADC reference) justifies higher cost and tighter inventory control | Select when system-level voltage accuracy demands <±30 mV deviation at 5 mA, not achievable with ±5 % part |
| MMSZ5236B-7-F | Same 6.8 V nominal, ±5 %, but in SOD-123 package (2.7 × 1.6 mm); 500 mW Ptot; higher rdiff (100 Ω typ) | Preferred for legacy designs using larger footprints or where higher continuous power margin is needed | Choose only if board layout cannot accommodate SOD523 or requires >300 mW steady-state dissipation |
Compared with BZX585-C6V8,115, the BZX585-B6V8,115 offers tighter voltage control at identical size and cost premium, while MMSZ5236B-7-F trades miniaturization for higher power and relaxed regulation-making the C-series optimal for new compact designs balancing cost, size, and ±5 % performance.
Availability
BZX585-C6V8,115 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset circuits, low-power sensor biasing, and ADC reference stabilization requiring stable component supply and guaranteed long-term manufacturability.
Supply support for BZX585-C6V8,115 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 solutions with focus on efficiency, reliability, and miniaturization for high-volume electronics.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for space-constrained voltage regulation and clamping in consumer, computing, and industrial applications where ultra-small SOD523 packaging and consistent ±2 % or ±5 % tolerance are essential.
FAQ
What is the maximum continuous reverse current the BZX585-C6V8,115 can sustain at 25 °C?
The device has no specified maximum continuous reverse current; instead, its 300 mW total power dissipation limit governs steady-state operation. At 6.8 V Zener voltage, this corresponds to ~44 mA average reverse current (300 mW ÷ 6.8 V). Exceeding this risks thermal runaway and permanent degradation.
Can the BZX585-C6V8,115 be used in place of a 6.2 V Zener for overvoltage protection?
No-it is not a drop-in replacement for 6.2 V Zeners. Its nominal Zener voltage is 6.8 V (range 6.46–7.14 V), so using it in a 6.2 V design would raise the clamping threshold by ~10 %, potentially exposing downstream components to unsafe overvoltage. Always match nominal VZ within ±0.1 V for critical protection roles.
How does the SOD523 package affect thermal performance compared to SOD-123?
The SOD523 package has higher thermal resistance: 65 K/W junction-to-solder point versus ~300 K/W junction-to-ambient, whereas SOD-123 typically achieves ~200 K/W. However, its smaller size limits absolute power handling-so while SOD523 enables better board-level heat spreading via copper, its 300 mW rating is fixed and must not be exceeded even with enhanced PCB copper.
Is the BZX585-C6V8,115 suitable for automotive applications?
No-it is not AEC-Q200 qualified or automotive-grade. Nexperia explicitly states in the legal disclaimers that non-automotive qualified products like BZX585-C6V8,115 are unsuitable for safety-critical or life-support systems, and lack testing to automotive temperature, vibration, and reliability standards.
BZX585-C6V8,115 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):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 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-C6V8,115 FAQ
1.How can I place an order for BZX585-C6V8,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C6V8,115 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-C6V8,115 reliable?
The price and inventory of BZX585-C6V8,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C6V8,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C6V8,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C6V8,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C6V8,115?
BZX585-C6V8,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C6V8,115 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-C6V8,115?
For technical support, including BZX585-C6V8,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C6V8,115 requirements.
6.How does Aetrix verify that BZX585-C6V8,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C6V8,115 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-C6V8,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C6V8,115?
All BZX585-C6V8,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C6V8,115, 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-C6V8,115 part is unused and in its original packaging.
Return procedure for BZX585-C6V8,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-C6V8,115 Tags
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