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Nexperia USA Inc. BZX585-C16,115
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- Part No.:
- BZX585-C16,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C16,115.pdf
- Description:
- DIODE ZENER 16V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:10,282
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Product details
Overview
BZX585-C16,115 from Nexperia is a ±5 % tolerance Zener diode in SOD523 (SC-79) package, rated for 16 V nominal Zener voltage at 5 mA, 300 mW total power dissipation, and 40 W non-repetitive peak reverse power. It delivers low differential resistance (≤200 Ω at IZ = 5 mA) and operates across −65 °C to +150 °C junction temperature, used for precision voltage reference and overvoltage clamping in space-constrained power rails.
For engineers reviewing the BZX585-C16,115 datasheet, BZX585-C16,115 pinout, BZX585-C16,115 application, or BZX585-C16,115 equivalent, this part supports compact voltage regulation in portable electronics, sensor biasing networks, and ESD-protected I/O interfaces where tight voltage tolerance and ultra-small footprint are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified nominal Zener voltage of 16 V at test current IZ = 5 mA, exhibiting a typical temperature coefficient of +10.4 mV/K and differential resistance ≤200 Ω under same conditions. Its SC-79 package enables high-density PCB layouts while maintaining thermal resistance of 65 K/W from junction to solder point.
The device supports non-repetitive surge handling up to 40 W for 100 µs square-wave pulses at Tj = 25 °C, with maximum forward voltage of 1.1 V at IF = 100 mA and reverse leakage <0.05 µA at VR = 12.8 V (80 % of VZ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2 V to 16.8 V at IZ = 5 mA - defines stable regulation point for feedback or reference circuits |
| Tolerance | ±5 % - ensures predictable clamping threshold without post-production trimming |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 PCB with 35 mm² copper - sets continuous DC bias limit |
| Differential Resistance (rdiff) | ≤200 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W for tp = 100 µs - enables transient overvoltage suppression without failure |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in automotive under-hood and industrial control environments |
| Package | SOD523 (SC-79) - 1.25 mm × 0.85 mm footprint ideal for wearables and IoT edge nodes |
Pinout & Package
SOD523 (SC-79) plastic surface-mounted package with two leads: cathode marked by bar on top surface; anode unmarked. Dimensions: 1.25 mm length × 0.85 mm width × 0.65 mm height; thermal resistance from junction to solder point is 65 K/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SMD footprint | SOD523 package (1.25 × 0.85 mm) reduces board area by >50 % vs. SOD323 in same voltage class |
| Low differential resistance | ≤200 Ω at 5 mA enables tighter regulation under varying load currents |
| High surge robustness | 40 W non-repetitive peak power withstand supports IEC 61000-4-5 level 4 transient immunity |
| Wide operating temperature | −65 °C to +150 °C junction range allows use in extended-temperature industrial modules |
| Stable temperature coefficient | +10.4 mV/K at 16 V minimizes drift in reference circuits over ambient changes |
Applications
| Power Supply Rail Clamping | Sensor Bias Reference |
|---|---|
|
Use Scenario: Protecting 16 V analog front-end inputs from ESD and load-dump transients in industrial PLC modules. IC Role / Device Role / Timing Role: Zener clamping element placed between signal line and ground to shunt excess energy before it reaches downstream op-amps. Use Value: Limits voltage excursion to ≤16.8 V with 40 W surge capacity, preventing latch-up in precision ADC drivers. |
Use Scenario: Providing stable 16 V bias for MEMS pressure sensor excitation in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Passive voltage reference source feeding constant-current generator for sensor bridge excitation. Use Value: ±5 % tolerance and +10.4 mV/K TC ensure sensor output accuracy remains within ±0.5 % full-scale over −40 °C to +85 °C ambient. |
| Microcontroller Reset Circuit | USB Port Overvoltage Protection |
|
Use Scenario: Generating clean reset threshold for 16 V-powered microcontrollers in automotive body control units. IC Role / Device Role / Timing Role: Zener-based voltage divider feeding RC network to MCU reset pin for brown-out detection. Use Value: Low rdiff (≤200 Ω) ensures minimal hysteresis shift during supply ramp-up, improving reset timing repeatability. |
Use Scenario: Clamping VBUS line against surges during hot-plug events in USB-C peripheral designs. IC Role / Device Role / Timing Role: Standby protection diode connected between VBUS and GND, activated only during overvoltage faults. Use Value: SOD523 size fits tight USB connector keep-out zones while delivering 40 W transient absorption per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B16,115 | ±2 % tolerance (vs. ±5 %), higher cost, identical package and power ratings | Better regulation stability required in precision instrumentation references | Select when voltage accuracy dominates cost and board space constraints |
| MMSZ5245B-7-F | SOD-123 package (2.7 × 1.4 mm), ±5 %, 500 mW Ptot, rdiff ≈ 17 Ω at 20 mA | Larger footprint but lower dynamic impedance for high-current regulation | Choose when lower rdiff and higher continuous power outweigh miniaturization needs |
Compared with BZX585-C16,115, the BZX585-B16,115 improves voltage accuracy at no package penalty, while MMSZ5245B-7-F trades size for significantly lower impedance and higher steady-state power-making each optimal for distinct design priorities: precision, density, or power handling.
Availability
BZX585-C16,115 is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and USB-compliant peripherals requiring stable component supply with guaranteed long-term availability.
Supply support for BZX585-C16,115 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 advanced packaging and automotive-grade qualification.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for space-constrained voltage regulation and transient suppression in consumer, industrial, and communications equipment.
FAQ
What is the maximum continuous reverse current for BZX585-C16,115 at 25 °C ambient?
The absolute maximum continuous reverse current is derived from Ptot = 300 mW and VZ = 16 V, yielding IZ ≤ 18.75 mA. However, the datasheet specifies 200 mA as absolute maximum forward current; for Zener operation, the safe continuous reverse current is limited to 15 mA to maintain thermal margin on standard FR4 PCBs.
Does BZX585-C16,115 have automotive qualification?
No. The BZX585-C16,115 is not AEC-Q200 qualified. Nexperia explicitly states in its legal disclaimers that unless expressly marked "automotive qualified," products are unsuitable for automotive safety-critical systems. This part is intended for industrial and consumer applications only.
How is the cathode identified on the SOD523 package?
The cathode is marked by a visible bar on the top surface of the SOD523 package, aligned with Pin 1 per Table 2 and Figure 11. This marking matches the "K" designation in the pinning diagram and corresponds to the terminal labeled "1 K" in the simplified outline.
Can BZX585-C16,115 be used in parallel for higher power handling?
No. Zener diodes exhibit manufacturing variations in VZ and rdiff, causing current imbalance when paralleled. Even with matched units, thermal runaway risk exists due to positive temperature coefficient above ~5 V. For higher power, use a single higher-rated Zener or active regulation instead.
BZX585-C16,115 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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 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-C16,115 FAQ
1.How can I place an order for BZX585-C16,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C16,115 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-C16,115 reliable?
The price and inventory of BZX585-C16,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C16,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C16,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C16,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C16,115?
BZX585-C16,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C16,115 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-C16,115?
For technical support, including BZX585-C16,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C16,115 requirements.
6.How does Aetrix verify that BZX585-C16,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C16,115 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-C16,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C16,115?
All BZX585-C16,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C16,115, 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-C16,115 part is unused and in its original packaging.
Return procedure for BZX585-C16,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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