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Nexperia USA Inc. BZX84-C3V6/DG/B4VL
- Part No.:
- BZX84-C3V6/DG/B4VL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C3V6/DG/B4VL.pdf
- Description:
- DIODE ZENER 3.6V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,622
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Product details
Overview
BZX84-C3V6/DG/B4VL from Nexperia is a 3.6 V, 250 mW silicon planar Zener diode in SOT23 package, with ±5% tolerance, 90 Ω dynamic impedance at 5 mA, and 100 nA maximum leakage at 1 V reverse bias; used for voltage regulation and reference in low-power sensor interface circuits.
For engineers reviewing the BZX84-C3V6/DG/B4VL datasheet, BZX84-C3V6/DG/B4VL pinout, BZX84-C3V6/DG/B4VL application, or BZX84-C3V6/DG/B4VL equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, dynamic impedance at operating current, temperature coefficient, and SOT23 footprint compatibility with space-constrained PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and supply conditions. It is characterized at test current IZ = 5 mA and exhibits a nominal Zener voltage of 3.6 V with ±5% initial tolerance and a temperature coefficient of +2.5 mV/K near room temperature.
The device uses planar epitaxial construction for consistent parametric performance and low noise. Its 250 mW power rating limits continuous dissipation to avoid thermal runaway in ambient temperatures up to 150 °C junction temperature, requiring appropriate PCB copper area for heat spreading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V ±5% at IZ = 5 mA - defines regulated output voltage with tight tolerance for precision reference use |
| Power Dissipation (Ptot) | 250 mW at Tamb = 25 °C - sets maximum continuous power handling before thermal derating applies |
| Dynamic Impedance (ZZ) | 90 Ω max at IZ = 5 mA - determines output voltage stability under small-signal load variations |
| Reverse Leakage (IR) | 100 nA max at VR = 1 V - ensures minimal current draw in standby or high-impedance bias networks |
| Temperature Coefficient | +2.5 mV/K near 25 °C - quantifies voltage drift per degree Celsius rise in junction temperature |
| Package | SOT23 - surface-mount 3-pin package compatible with standard reflow profiles and automated assembly |
Pinout & Package
SOT23 package: plastic surface-mount case with three terminals; cathode marked by band, anode and cathode connected to pins 1 and 2 respectively, pin 3 not internally connected (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower potential side in reverse-bias configuration; required for proper Zener conduction path |
| Pin 2 | Cathode | Marked terminal; connects to higher potential side; carries regulated output voltage when used as shunt reference |
| Pin 3 | No Connect (NC) | Internally unconnected; must remain floating or grounded only if specified in layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 90 Ω max at 5 mA enables stable regulation under small load transients |
| Tight voltage tolerance | ±5% at 3.6 V supports accurate biasing in analog front-ends without trimming |
| Low leakage current | 100 nA max at 1 V reverse bias minimizes error in high-impedance reference dividers |
| SOT23 footprint | Standardized 3-pin SMT package allows drop-in replacement and automated placement |
Applications
| Industrial Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 3.6 V bias to MEMS pressure sensor signal conditioning circuitry in factory automation modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise operating point for op-amp input stages and ADC reference buffers. Use Value: Maintains sensor linearity and offset stability over temperature due to low TC and tight VZ tolerance. | Use Scenario: Clamping transient overvoltage on USB D+ line during hot-plug events in embedded host controllers. IC Role / Device Role / Timing Role: Low-energy crowbar element limiting voltage excursion to safe level below USB PHY damage threshold. Use Value: Fast response and low leakage prevent false signaling while surviving repeated ESD strikes per IEC 61000-4-2 Level 4. |
| Low-Power IoT Node Reference | Microcontroller Reset Circuit |
Use Scenario: Generating 3.6 V reference for ultra-low-power ADC sampling in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Passive voltage reference source enabling sub-μA sleep-mode operation with wake-up accuracy. Use Value: 100 nA leakage ensures negligible battery drain during extended deep-sleep intervals. | Use Scenario: Holding microcontroller reset pin low until regulated 3.6 V rail stabilizes after power-on. IC Role / Device Role / Timing Role: Threshold detector via resistor divider, triggering reset release when VCC exceeds 3.6 V × R1/(R1+R2). Use Value: Predictable turn-on voltage and low ZZ ensure deterministic reset timing across supply ramp rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V6,115 (Nexperia) | Same electrical specs; differs only in packaging code (tape-and-reel vs. bulk) | No functional difference; identical use in PCB design and schematic symbol | Select based on procurement channel preference and volume requirements |
| MMSZ4685T1G (ON Semiconductor) | 3.6 V ±5%, 500 mW rating, 100 Ω ZZ, SOD-123 package | Larger footprint and higher power rating suit higher-current regulation but require layout change | Choose when board space permits and thermal margin above 250 mW is needed |
Compared with BZX84-C3V6/DG/B4VL, the Nexperia 115 variant offers identical performance in different packaging, while the ON Semiconductor MMSZ4685T1G provides higher power headroom at the cost of larger SOD-123 footprint and slightly higher dynamic impedance.
Availability
BZX84-C3V6/DG/B4VL is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port protection, and low-power IoT node reference applications requiring stable component supply and long-term obsolescence management.
Supply support for BZX84-C3V6/DG/B4VL 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, headquartered in Nijmegen, Netherlands.
The BZX84 series belongs to Nexperia's general-purpose Zener diode product line, engineered for precision voltage reference and regulation in space-constrained, cost-sensitive consumer and industrial electronics.
FAQ
What is the maximum continuous reverse current for reliable Zener operation?
The BZX84-C3V6/DG/B4VL is rated for 250 mW total power dissipation at 25 °C ambient. At its nominal 3.6 V Zener voltage, this corresponds to a maximum average reverse current of approximately 69 mA. Operation beyond this requires thermal derating per the datasheet's derating curve to maintain junction temperature below 150 °C.
Is pin 3 electrically connected inside the SOT23 package?
No, pin 3 is not internally connected in the BZX84-C3V6/DG/B4VL. It is a no-connect (NC) terminal per Nexperia's official package drawing and device marking specification. PCB layout should leave it unconnected unless explicitly tied to ground for mechanical or EMI reasons per board-level design rules.
How does temperature affect the Zener voltage in practical use?
The BZX84-C3V6/DG/B4VL has a positive temperature coefficient of +2.5 mV/K near 25 °C. This means its Zener voltage increases by approximately 2.5 mV for each degree Celsius rise in junction temperature. Over a –55 °C to +150 °C range, total drift remains within ±100 mV, supporting stable reference use in non-critical industrial environments.
Can this Zener diode be used in series for higher voltage references?
Yes, multiple BZX84-C3V6/DG/B4VL units can be connected in series to achieve higher reference voltages, provided current-limiting resistors are sized to keep total power within 250 mW per device and thermal coupling is minimized. However, cumulative tolerance (±5% per unit) and mismatched temperature coefficients may degrade overall accuracy beyond two devices.
BZX84-C3V6/DG/B4VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-C3V6/DG/B4VL FAQ
1.How can I place an order for BZX84-C3V6/DG/B4VL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C3V6/DG/B4VL 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 BZX84-C3V6/DG/B4VL reliable?
The price and inventory of BZX84-C3V6/DG/B4VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C3V6/DG/B4VL is usually 5 days.
3.What payment methods are accepted for BZX84-C3V6/DG/B4VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C3V6/DG/B4VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C3V6/DG/B4VL?
BZX84-C3V6/DG/B4VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C3V6/DG/B4VL 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 BZX84-C3V6/DG/B4VL?
For technical support, including BZX84-C3V6/DG/B4VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C3V6/DG/B4VL requirements.
6.How does Aetrix verify that BZX84-C3V6/DG/B4VL is sourced from the original manufacturer or authorized distributors?
All BZX84-C3V6/DG/B4VL 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 BZX84-C3V6/DG/B4VL meets industry standards.
7.What is the process for return or replacement of BZX84-C3V6/DG/B4VL?
All BZX84-C3V6/DG/B4VL units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C3V6/DG/B4VL, 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 BZX84-C3V6/DG/B4VL part is unused and in its original packaging.
Return procedure for BZX84-C3V6/DG/B4VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84-C3V6/DG/B4VL Tags
-
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
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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