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Nexperia USA Inc. BZX585-B3V6,115
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- Part No.:
- BZX585-B3V6,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585-B3V6,115.pdf
- Description:
- DIODE ZENER 3.6V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:42,789
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Product details
Overview
BZX585-B3V6,115 from Nexperia is a ±2 % tolerance Zener diode in SOD523 (SC-79) package, rated for 3.6 V nominal regulation at 5 mA, with 300 mW total power dissipation and 40 W non-repetitive peak reverse power capability. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning, microcontroller I/O protection, and battery-powered sensor circuits.
For engineers reviewing the BZX585-B3V6,115 datasheet, BZX585-B3V6,115 pinout, BZX585-B3V6,115 application, or BZX585-B3V6,115 equivalent, key selection criteria include its 3.53–3.67 V Zener voltage range at 5 mA, 375 Ω typical differential resistance, −3.5 to −1.9 mV/K temperature coefficient, and ultra-small SOD523 footprint for space-constrained 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 design targets low-current regulation (IZ = 1–5 mA), low thermal resistance (Rth(j-sp) = 65 K/W), and fast transient response due to minimal junction capacitance (Cd = 5.0 pF at VR = 0 V).
The device features a negative temperature coefficient (−3.5 to −1.9 mV/K) optimized for low-voltage stabilization, with cathode-anode polarity clearly marked by a bar on the SOD523 body. It complies with IEC 60134 absolute maximum ratings and supports reflow soldering per JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.53–3.67 V at IZ = 5 mA - defines tight regulation window for 3.3 V rail clamping or reference generation |
| Differential Resistance (rdiff) | 375 Ω typ. at IZ = 5 mA - determines output impedance and load regulation error |
| Temperature Coefficient (SZ) | −3.5 to −1.9 mV/K - quantifies voltage drift over temperature; enables predictable compensation in analog designs |
| Total Power Dissipation (Ptot) | 300 mW at Tamb = 25 °C on FR4 PCB with 35 mm² copper - sets continuous DC power handling limit |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs square wave - supports ESD/surge suppression in transient protection circuits |
| Junction-to-Solder-Point Rth | 65 K/W - enables thermal management via cathode tab conduction to PCB copper |
| Reverse Current (IR) | 5.0 µA max 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: 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) | Negative terminal; connected to regulated output node or ground return path in shunt configuration |
| 2 | Anode (A) | Positive terminal; tied to unregulated input or current-limiting resistor in standard Zener bias arrangement |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter regulation than ±5 % variants, reducing need for post-production trimming in precision references |
| Low differential resistance (375 Ω typ.) | Minimizes output voltage variation under load changes, critical for stable biasing of op-amp inputs |
| Ultra-compact SOD523 footprint | Reduces board area by >50 % vs. SOD323, supporting miniaturized wearables and IoT sensor nodes |
| 65 K/W junction-to-solder-point thermal resistance | Allows direct heat transfer from cathode pad to PCB copper, improving reliability in thermally dense layouts |
| 5.0 pF junction capacitance | Preserves high-frequency signal integrity in RF detector or fast-switching clamp applications |
Applications
| Microcontroller I/O Protection | Low-Power Sensor Reference |
|---|---|
Use Scenario: Clamping 3.3 V GPIO lines against ESD or supply transients in ARM Cortex-M based edge devices. IC Role / Device Role / Timing Role: Shunt Zener element placed between I/O pin and ground, activated during overvoltage events. Use Value: Limits pin voltage to ≤3.67 V with <5 µA leakage at 3.0 V, preserving MCU input integrity without loading active circuits. |
Use Scenario: Providing stable 3.6 V reference for ADC biasing in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Passive voltage reference source delivering fixed potential to analog front-end circuitry. Use Value: Maintains ±2 % accuracy across −65 to +150 °C, enabling <0.1 % full-scale error in 12-bit temperature measurements. |
| USB-C Port Voltage Clamp | Wearable Battery Monitoring |
Use Scenario: Protecting USB-C CC line receivers from VBUS coupling during hot-plug events. IC Role / Device Role / Timing Role: Fast-acting clamp limiting CC pin voltage to safe levels during 40 W surge pulses. Use Value: Withstands 40 W non-repetitive surges (tp = 100 µs), preventing latch-up in USB PD controllers. |
Use Scenario: Monitoring Li-ion cell voltage in hearable devices using resistive divider with Zener-stabilized reference. IC Role / Device Role / Timing Role: Low-leakage reference node stabilizing divider ratio independent of battery state-of-charge. Use Value: Delivers 3.6 V ±2 % with only 5 µA IR at 3.0 V, extending shelf life by minimizing quiescent current drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585-C3V6,115 | ±5 % tolerance (3.42–3.78 V), higher rdiff (500 Ω typ.), same package and Ptot | Acceptable where 3.3 V rail margin allows wider regulation band; less suitable for precision references | Select for cost-sensitive designs where ±2 % accuracy is not required and leakage <5 µA is still needed |
| MMSZ4685T1G | 3.6 V nominal, ±5 %, SOD-123 package (2.7 × 1.4 mm), Ptot = 500 mW, rdiff = 130 Ω typ. | Larger footprint but lower impedance; better for higher-current regulation (>10 mA) | Choose when board space permits larger package and lower dynamic impedance is prioritized over size |
Compared with BZX585-C3V6,115, the BZX585-B3V6,115 delivers tighter voltage control and lower leakage at the expense of slightly higher cost; versus MMSZ4685T1G, it trades off package size and power rating for superior miniaturization and thermal performance in ultra-dense layouts.
Availability
BZX585-B3V6,115 is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-power sensor reference, and wearable battery monitoring requiring stable component supply and consistent parametric performance across production batches.
Supply support for BZX585-B3V6,115 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, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.
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 electronics.
FAQ
What is the maximum continuous forward current for BZX585-B3V6,115?
The device is rated for a maximum forward current (IF) of 200 mA per Absolute Maximum Ratings (Table 5). However, its primary function is reverse-bias Zener operation; forward conduction is typically limited to brief test pulses (≤300 µs) with VF ≤ 1.1 V at 100 mA, and sustained forward bias is not recommended in normal operation.
Can BZX585-B3V6,115 be used in place of a 3.3 V Zener diode?
No - its nominal Zener voltage is 3.6 V (range 3.53–3.67 V at 5 mA), making it unsuitable as a direct 3.3 V replacement. For 3.3 V regulation, BZX585-B3V3,115 (3.23–3.37 V) is the correct variant; substituting BZX585-B3V6,115 would raise the clamping/reference level by ~300 mV, potentially violating downstream IC voltage tolerances.
How does the marking code 'C5' relate to BZX585-B3V6,115?
Per Table 4, 'C5' is the top-side marking for BZX585-B3V6. The 'C' denotes the BZX585-B series (±2 % tolerance), and '5' corresponds to the 3.6 V nominal voltage grade within that series. This two-character code enables rapid visual identification on assembled PCBs without magnification.
Is thermal derating required above 25 °C ambient?
Yes - total power dissipation must be linearly derated above 25 °C at 2.4 mW/°C (calculated from Ptot = 300 mW and Rth(j-a) = 350 K/W). At 85 °C ambient, maximum allowable Ptot drops to 156 mW. Designers must verify junction temperature remains ≤150 °C using Rth(j-sp) = 65 K/W and actual PCB copper area at the cathode pad.
BZX585-B3V6,115 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):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-B3V6,115 FAQ
1.How can I place an order for BZX585-B3V6,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585-B3V6,115 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-B3V6,115 reliable?
The price and inventory of BZX585-B3V6,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585-B3V6,115 is usually 5 days.
3.What payment methods are accepted for BZX585-B3V6,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585-B3V6,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585-B3V6,115?
BZX585-B3V6,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585-B3V6,115 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-B3V6,115?
For technical support, including BZX585-B3V6,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585-B3V6,115 requirements.
6.How does Aetrix verify that BZX585-B3V6,115 is sourced from the original manufacturer or authorized distributors?
All BZX585-B3V6,115 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-B3V6,115 meets industry standards.
7.What is the process for return or replacement of BZX585-B3V6,115?
All BZX585-B3V6,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585-B3V6,115, 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-B3V6,115 part is unused and in its original packaging.
Return procedure for BZX585-B3V6,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585-B3V6,115 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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Diodes Incorporated
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Diodes Incorporated
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