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Nexperia USA Inc. BZX585-C2V7,115
- Part No.:
- BZX585-C2V7,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-C2V7,115.pdf
- Description:
- DIODE ZENER 2.7V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,210
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Product details
Overview
BZX585-C2V7,115 from Nexperia is a 2.7 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-voltage reference and overvoltage clamping in space-constrained consumer and industrial power rails.
For engineers reviewing the BZX585-C2V7,115 datasheet, BZX585-C2V7,115 pinout, BZX585-C2V7,115 application, or BZX585-C2V7,115 equivalent, key selection criteria include Zener voltage tolerance (±5 %), differential resistance (≤450 Ω at IZ = 1 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 2.7 V across its terminals under regulated current conditions (IZ = 1–5 mA), with low forward voltage (1.1 V at IF = 100 mA) enabling bidirectional protection. Its temperature coefficient of −1.4 mV/K (typical at IZ = 5 mA) ensures predictable drift in ambient-temperature-varying circuits.
The device features low differential resistance (300–450 Ω) and reverse current <1.0 µA at VR = 1 V, supporting accurate voltage referencing in low-power sensor biasing and ADC reference stabilization. It is not intended for continuous high-current regulation but optimized for transient suppression and precision clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.57–2.84 V range at IZ = 5 mA - defines precise clamping threshold for 3.3 V rail protection |
| Tolerance | ±5 % - enables cost-effective selection where tight regulation is required without premium ±2 % grade |
| Differential Resistance (rdiff) | 450 Ω max at IZ = 1 mA - limits output impedance impact on reference stability under light load |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 PCB with 35 mm² copper - sets maximum continuous DC power handling |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs square wave - supports ESD and surge pulse absorption in I/O protection |
| Junction-to-Solder-Point Rth | 65 K/W - enables effective thermal coupling to PCB copper for transient power dissipation |
| Reverse Current (IR) | ≤1.0 µA at VR = 1 V - ensures minimal leakage in battery-powered standby 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 top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-compact SOD523 footprint | Enables placement in <1.5 mm² board area - critical for wearables and miniaturized IoT nodes |
| Low differential resistance | 450 Ω max at 1 mA - improves regulation accuracy under varying load currents in reference circuits |
| Controlled temperature coefficient | −1.4 mV/K typical - allows predictable compensation in temperature-sensitive analog front-ends |
| High surge robustness | 40 W non-repetitive peak power - absorbs IEC 61000-4-2 Level 4 ESD events without degradation |
| Low leakage current | ≤1.0 µA at 1 V reverse bias - preserves battery life in always-on sensor monitoring applications |
Applications
| USB Port ESD Protection | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Clamping transient voltages on USB D+/D− lines during hot-plug or ESD events. IC Role / Device Role / Timing Role: Zener diode acting as low-capacitance (440 pF) bidirectional clamp between data line and ground. Use Value: Limits voltage excursion to ≤2.84 V, preventing damage to 3.3 V tolerant PHY transceivers while adding <0.1 ns propagation delay. |
Use Scenario: Generating a stable reset threshold for 3.3 V microcontrollers during power-up and brownout. IC Role / Device Role / Timing Role: Precision Zener referenced into comparator input to trigger reset when supply drops below 2.7 V. Use Value: ±5 % tolerance ensures reliable reset assertion at 2.57–2.84 V, compatible with common MCU reset thresholds. |
| Low-Power Sensor Biasing | ADC Reference Stabilization |
Use Scenario: Providing stable bias voltage to analog sensor elements (e.g., thermistors, photodiodes) in battery-powered devices. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) Zener supplying fixed 2.7 V reference to sensor bridge excitation. Use Value: Enables >10-year battery life in wireless sensors by minimizing quiescent current draw while maintaining <0.1 % voltage drift. |
Use Scenario: Stabilizing reference voltage for 12-bit SAR ADCs in portable instrumentation. IC Role / Device Role / Timing Role: Low-noise Zener shunt regulator feeding REF+ input of ADC to reduce code spread. Use Value: 450 Ω differential resistance contributes <0.02 LSB error at full scale, improving effective resolution by ≥0.3 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-B2V7,115 | ±2 % tolerance (2.65–2.75 V), higher cost, tighter rdiff (300 Ω max) | Better for high-accuracy references where 10 mV variation is unacceptable | Select when absolute voltage precision outweighs cost sensitivity |
| MMSZ4678T1G | 2.7 V ±5 %, SOD-123 package (2.7 × 1.6 mm), 500 mW Ptot, higher thermal resistance | Higher power handling but 2.3× larger footprint; less suitable for ultra-dense layouts | Choose when board space permits and higher continuous dissipation is needed |
Compared with BZX585-C2V7,115, the BZX585-B2V7,115 offers tighter voltage control at the expense of cost and availability, while MMSZ4678T1G trades miniaturization for thermal margin-making the C-grade optimal for cost-sensitive, space-constrained designs requiring verified ±5 % performance.
Availability
BZX585-C2V7,115 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset generation, low-power sensor biasing, and ADC reference stabilization requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZX585-C2V7,115 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-qualified components.
The BZX585 series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for compact, low-power voltage regulation and transient protection in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous reverse current for BZX585-C2V7,115?
The device has no specified maximum continuous reverse current; instead, it is limited by total power dissipation (300 mW at 25 °C). At 2.7 V, this corresponds to ~111 mA average Zener current. Exceeding this causes junction temperature rise beyond 150 °C, risking permanent degradation.
Can BZX585-C2V7,115 be used in series for higher voltage regulation?
No - the BZX585-C2V7,115 is not characterized or tested for series operation. Variations in Zener voltage tolerance and temperature coefficient between units cause uneven voltage sharing, leading to thermal runaway in one device. Use single-device solutions or purpose-designed multi-Zener arrays.
Is the SOD523 package compatible with standard reflow profiles?
Yes - the SOD523 package is qualified for lead-free reflow per J-STD-020. Recommended peak temperature is 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. The cathode tab provides primary thermal path; ensure solder land design matches Nexperia's Fig. 12 footprint (1.4 × 0.4 mm pads).
How does the −1.4 mV/K temperature coefficient affect circuit performance?
At 2.7 V nominal, a −1.4 mV/K coefficient means voltage decreases ~14 mV over a 10 K ambient rise (e.g., 25 °C → 35 °C). In reset circuits, this shifts trip point downward; in references, it introduces predictable linear drift that can be compensated in firmware or analog signal conditioning stages.
BZX585-C2V7,115 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):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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-C2V7,115 FAQ
1.How can I place an order for BZX585-C2V7,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-C2V7,115 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-C2V7,115 reliable?
The price and inventory of BZX585-C2V7,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-C2V7,115 is usually 5 days.
3.What payment methods are accepted for BZX585-C2V7,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-C2V7,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-C2V7,115?
BZX585-C2V7,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-C2V7,115 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-C2V7,115?
For technical support, including BZX585-C2V7,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-C2V7,115 requirements.
6.How does Aetrix verify that BZX585-C2V7,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-C2V7,115 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-C2V7,115 meets industry standards.
7.What is the process for return or replacement of BZX585-C2V7,115?
All BZX585-C2V7,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-C2V7,115, 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-C2V7,115 part is unused and in its original packaging.
Return procedure for BZX585-C2V7,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-C2V7,115 Tags
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