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Nexperia USA Inc. BZX84W-C5V1F
- Part No.:
- BZX84W-C5V1F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C5V1F.pdf
- Description:
- DIODE ZENER 5.1V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:8,305
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Product details
Overview
BZX84W-C5V1F from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT323 (SC-70) package, providing 5.1 V nominal regulation at 5 mA, with 480 Ω differential resistance and −0.8 mV/K temperature coefficient. It delivers stable reference voltage in low-power analog circuits, power supply feedback paths, and overvoltage protection for microcontroller I/O pins.
For engineers reviewing the BZX84W-C5V1F datasheet, BZX84W-C5V1F pinout, BZX84W-C5V1F application, or BZX84W-C5V1F equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at rated test current, thermal coefficient, reverse leakage at VR = 2 V (2 µA), and SOT323 thermal resistance (455 K/W).
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 5.1 V reference across load variations, with specified test conditions of IZ = 5 mA and Tj = 25 °C. Its −0.8 mV/K temperature coefficient indicates minimal drift over temperature when biased at 5 mA, supporting precision biasing in sensor interfaces and ADC references.
The device exhibits 2 µA reverse leakage at VR = 2 V and 480 Ω differential resistance at IZ = 5 mA, enabling predictable regulation performance in low-current (<10 mA) applications. Its 275 mW total power dissipation rating applies under standard FR4 PCB mounting conditions with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.80 V to 5.40 V at IZ = 5 mA - defines regulation band for ±5 % tolerance grade |
| Differential Resistance (rdif) | 480 Ω at IZ = 5 mA - determines output impedance and load regulation error |
| Reverse Leakage (IR) | 2 µA at VR = 2 V - sets minimum bias current requirement for reliable turn-on |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as low-drop clamp in forward conduction mode |
| Total Power Dissipation (Ptot) | 275 mW on FR4 PCB - limits maximum continuous Zener current to ~54 mA at 5.1 V |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in industrial ambient environments |
| Thermal Resistance (Rth(j-a)) | 455 K/W - dictates temperature rise per watt under natural convection on standard layout |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package with three terminals: anode (Pin 1), not connected (Pin 2), cathode (Pin 3). The n.c. terminal provides mechanical stability without electrical function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential side in reverse-bias regulation configuration |
| 2 | Not Connected (n.c.) | Electrically isolated; no PCB trace or solder connection required |
| 3 | Cathode (K) | Connected to higher-potential side; Zener breakdown occurs between K and A |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage reference where tight regulation is not critical |
| Low 2 µA reverse leakage at VR = 2 V | Reduces standby current in battery-powered overvoltage clamps |
| 480 Ω differential resistance at 5 mA | Supports stable regulation under moderate load variation in feedback networks |
| −0.8 mV/K temperature coefficient | Minimizes drift in 5.1 V reference across −40 °C to +85 °C operating range |
| SOT323 footprint compatibility | Enables high-density placement in space-constrained consumer and IoT PCBs |
Applications
| Power Supply Feedback | Microcontroller I/O Protection |
|---|---|
Use Scenario: Regulating output voltage in low-power linear regulators or switching converter feedback loops. IC Role / Device Role / Timing Role: Provides precise 5.1 V reference point for error amplifier comparison. Use Value: Maintains ±5 % output accuracy over line/load/temperature with minimal external components. |
Use Scenario: Clamping GPIO or ADC input pins against ESD or transient overvoltage. IC Role / Device Role / Timing Role: Acts as bidirectional shunt limiter-Zener breakdown for overvoltage, forward conduction for negative excursions. Use Value: Limits pin voltage to ≤5.1 V + 0.9 V while drawing <2 µA leakage at safe signal levels. |
| Sensor Biasing | Reference Voltage Generator |
Use Scenario: Supplying stable bias current to analog sensors (e.g., thermistors, RTDs) in measurement front-ends. IC Role / Device Role / Timing Role: Functions as constant-voltage source to set sensor operating point. Use Value: Delivers repeatable 5.1 V with <0.8 mV/K drift, improving sensor linearity and repeatability. |
Use Scenario: Generating local reference for 10-bit ADCs or comparator thresholds in embedded systems. IC Role / Device Role / Timing Role: Serves as passive voltage reference in ratiometric or non-ratiometric configurations. Use Value: Enables 5.1 V reference with 480 Ω output impedance, suitable for driving high-impedance inputs (<100 kΩ). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-B5V1 | ±2 % tolerance (4.9–5.1 V), 480 Ω rdif, −0.8 mV/K SZ | Higher precision regulation required in feedback loops demanding tighter output tolerance | Select when system-level accuracy requires <±3 % output deviation under full temperature range |
| MMBZ5221BS | ±5 % tolerance (4.8–5.4 V), 17 Ω rdif at 20 mA, −2.5 mV/K SZ | Lower dynamic impedance but higher temperature drift; rated for 350 mW | Prefer for high-current (>10 mA) regulation where low rdif outweighs thermal stability needs |
Compared with BZX84W-C5V1F, BZX84W-B5V1 improves voltage accuracy at the cost of identical thermal behavior, while MMBZ5221BS trades tighter dynamic regulation for greater temperature sensitivity and higher power handling-choice depends on whether precision, stability, or current capacity dominates the design priority.
Availability
BZX84W-C5V1F is available at Aetrix Electronics and suitable for power supply feedback, microcontroller I/O protection, and sensor biasing requiring stable component supply with consistent SOT323 packaging and ±5 % Zener tolerance.
Supply support for BZX84W-C5V1F 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 manufacturer specializing in high-volume logic, discrete, and MOSFET devices, with emphasis on reliability, efficiency, and miniaturization for industrial and consumer applications.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, designed specifically for compact, cost-sensitive voltage regulation and protection in space-constrained SMT designs.
FAQ
What is the maximum continuous Zener current for BZX84W-C5V1F at 25 °C ambient?
The maximum continuous Zener current is calculated from Ptot = 275 mW and VZ ≈ 5.1 V, yielding ~54 mA. However, derating is required above 25 °C due to Rth(j-a) = 455 K/W; at 85 °C ambient, max current drops to ~35 mA to maintain Tj ≤ 150 °C.
Can BZX84W-C5V1F be used in bidirectional ESD protection?
No-it is a unidirectional Zener diode with defined anode and cathode. While it conducts forward at ≤0.9 V (protecting against negative transients), its reverse breakdown is only specified for regulation, not ESD pulse handling. Dedicated TVS diodes like PESD5V0S1BA are recommended for IEC 61000-4-2 compliance.
How does the n.c. pin (Pin 2) affect PCB layout or thermal performance?
Pin 2 is electrically isolated and must remain unconnected. It does not contribute to thermal conduction or electrical functionality. Standard SOT323 reflow footprints (e.g., 0.55 mm pad width × 1.325 mm length) accommodate it without modification; omitting solder paste on Pin 2 has no impact on thermal resistance or reliability.
Is BZX84W-C5V1F suitable for automotive applications?
No-this part is non-automotive qualified per Nexperia's revision history (Rev. 2, Jan 2023). It lacks AEC-Q200 qualification and automotive-grade screening. For automotive use, select the -Q qualified variant (e.g., BZX84W-C5V1F-Q) or consult Nexperia's automotive Zener portfolio.
BZX84W-C5V1F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C5V1F FAQ
1.How can I place an order for BZX84W-C5V1F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C5V1F 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 BZX84W-C5V1F reliable?
The price and inventory of BZX84W-C5V1F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C5V1F is usually 5 days.
3.What payment methods are accepted for BZX84W-C5V1F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C5V1F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C5V1F?
BZX84W-C5V1F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C5V1F 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 BZX84W-C5V1F?
For technical support, including BZX84W-C5V1F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C5V1F requirements.
6.How does Aetrix verify that BZX84W-C5V1F is sourced from the original manufacturer or authorized distributors?
All BZX84W-C5V1F 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 BZX84W-C5V1F meets industry standards.
7.What is the process for return or replacement of BZX84W-C5V1F?
All BZX84W-C5V1F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C5V1F, 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 BZX84W-C5V1F part is unused and in its original packaging.
Return procedure for BZX84W-C5V1F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C5V1F 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
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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
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SMAZ12-13-F
Diodes Incorporated
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