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Nexperia USA Inc. BZX84W-B5V6F
- Part No.:
- BZX84W-B5V6F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-B5V6F.pdf
- Description:
- DIODE ZENER 5.6V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:7,454
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Product details
Overview
BZX84W-B5V6F from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT323 (SC-70) package, rated for 5.6 V nominal Zener voltage at 5 mA, 400 Ω differential resistance, and 1.2 mV/K temperature coefficient. It delivers stable reference voltage in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the BZX84W-B5V6F datasheet, BZX84W-B5V6F pinout, BZX84W-B5V6F application, or BZX84W-B5V6F equivalent, this page provides verified Zener voltage, thermal resistance, reverse leakage, forward voltage, and package footprint data required for precision biasing, clamping, and regulation design in space-constrained PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode with a tightly controlled 5.6 V nominal working voltage at IZ = 5 mA, exhibiting low differential resistance (400 Ω max) to maintain regulation stability under varying load current. Its positive temperature coefficient (+1.2 mV/K) enables predictable drift compensation in multi-diode reference networks.
The device is optimized for surface-mount assembly on FR4 PCBs with single-sided copper, achieving 455 K/W junction-to-ambient thermal resistance. It supports non-repetitive surge handling up to 40 W (100 µs pulse) and continuous power dissipation of 275 mW at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49 V to 5.71 V at IZ = 5 mA - defines precise regulation threshold for feedback and clamp circuits |
| Differential Resistance (rdif) | ≤ 400 Ω at IZ = 5 mA - ensures minimal output voltage shift under load current variation |
| Temperature Coefficient (SZ) | +1.2 mV/K at IZ = 5 mA - enables predictable voltage drift compensation across operating temperature range |
| Reverse Leakage (IR) | ≤ 1 µA at VR = 2 V - guarantees low quiescent current in high-impedance bias networks |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - supports use as low-drop rectifier or ESD clamp in dual-direction protection |
| Total Power Dissipation (Ptot) | 275 mW on FR4 PCB - sets maximum continuous DC power budget for thermal design |
| Junction Temperature (Tj) | −55 °C to +150 °C - validates operation in extended industrial environments |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals; compact 2.2 mm × 1.35 mm footprint, 0.65 mm pitch, and 0.1 mm A1 height for high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in Zener regulation configuration |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 | Cathode (K) | Reverse-biased terminal; ties to regulated output node or voltage reference point |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables direct replacement in precision 5.6 V reference designs without recalibration |
| Low differential resistance (400 Ω) | Maintains regulation accuracy within ±20 mV over ±1 mA load current change |
| Positive temperature coefficient (+1.2 mV/K) | Allows series stacking with negative-coefficient diodes for near-zero-drift references |
| 275 mW power rating on standard FR4 | Supports standalone regulation in 3.3 V/5 V rail monitoring without heatsinking |
| SOT323 package with n.c. pin | Reduces board area by 40 % vs. SOT23 while enabling mechanical decoupling of unused terminal |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in adjustable buck converter feedback network using TL431 alternative topology. IC Role / Device Role / Timing Role: Zener reference element setting error amplifier threshold; cathode tied to FB node, anode grounded. Use Value: 5.6 V nominal voltage matches common 3.3 V LDO feedback divider ratios; ±2 % tolerance avoids output calibration drift. |
Use Scenario: Protecting microcontroller GPIO pins against transient surges from relay coils or motor drivers. IC Role / Device Role / Timing Role: Reverse-biased clamping diode shunting excess energy to ground when input exceeds 5.6 V. Use Value: 1 µA leakage at 2 V ensures negligible standby current; 40 W surge rating handles 100 µs inductive spikes. |
| Reference Voltage Source | High-Frequency Bias Network |
|
Use Scenario: Generating stable 5.6 V bias for op-amp input stages in sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Low-noise DC reference node; used with RC filter to suppress ripple before op-amp non-inverting input. Use Value: 400 Ω dynamic impedance minimizes AC impedance rise above 10 kHz, preserving PSRR in analog front-ends. |
Use Scenario: Setting gate bias for RF MOSFET amplifiers operating above 100 MHz. IC Role / Device Role / Timing Role: DC bias point stabilizer; placed in series with RF choke to isolate AC path while fixing DC operating point. Use Value: 6 pF junction capacitance at 0 V ensures <0.1 dB insertion loss up to 500 MHz; SOT323 layout reduces parasitic inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 | ±5 % tolerance, higher 500 nA leakage at VR = 2 V, same SOT323 package | Acceptable where cost sensitivity outweighs precision; unsuitable for <1 µA bias networks | Select for non-critical voltage thresholds where 5.32–5.88 V range is acceptable |
| MMSZ5232B | ±5 % tolerance, 500 mW Ptot, SOD-123 package (larger footprint), 100 Ω rdif | Higher power handling but 3× board area; better for >10 mA regulation loads | Choose when thermal margin >275 mW is required and PCB space permits larger package |
Compared with BZX84W-B5V6F, BZX84-C5V6 trades precision for cost in identical form factor, while MMSZ5232B offers lower impedance and higher power at the expense of size-making BZX84W-B5V6F optimal for space-constrained, precision 5.6 V reference designs.
Availability
BZX84W-B5V6F is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamp, and reference voltage source applications requiring stable component supply, consistent Zener voltage matching, and SOT323 footprint compatibility.
Supply support for BZX84W-B5V6F 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
BZX84W belongs to Nexperia's general-purpose Zener diode product line, engineered for precision voltage regulation in compact, high-frequency, and thermally constrained PCB layouts.
FAQ
What is the maximum continuous reverse current for BZX84W-B5V6F at 25 °C?
The device has no specified maximum continuous reverse current; its operation is defined by Zener test current (5 mA) and power limit. At 5.6 V, the absolute maximum continuous reverse current is derived from Ptot = 275 mW, yielding IZ(max) ≈ 49 mA. Exceeding this risks thermal runaway due to 455 K/W junction-to-ambient resistance.
Can BZX84W-B5V6F be used in place of a 5.1 V Zener diode?
No-BZX84W-B5V6F is specifically rated for 5.6 V nominal Zener voltage with ±2 % tolerance (5.49–5.71 V). Substituting it for a 5.1 V part would shift regulation threshold by >5 %, potentially causing overvoltage in feedback loops or incorrect clamping thresholds. Use BZX84W-B5V1 for 5.1 V applications.
Is Pin 2 electrically functional or purely mechanical?
Pin 2 is explicitly marked "n.c." (not connected) in Nexperia's official pinning table and internal die construction. It is electrically isolated from the silicon die and serves only as a mechanical anchor for package integrity. Connecting it risks solder bridging, thermal stress concentration, or unintended parasitic coupling.
How does the +1.2 mV/K temperature coefficient affect long-term stability?
The +1.2 mV/K coefficient means the Zener voltage increases by ~1.2 mV per °C rise in junction temperature. Over a 100 °C range (−25 °C to +75 °C), this yields ~120 mV total drift. For applications requiring <0.5 % stability, active compensation (e.g., series NTC or complementary diode) or derating to lower IZ is necessary.
BZX84W-B5V6F 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):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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-B5V6F FAQ
1.How can I place an order for BZX84W-B5V6F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-B5V6F 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-B5V6F reliable?
The price and inventory of BZX84W-B5V6F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-B5V6F is usually 5 days.
3.What payment methods are accepted for BZX84W-B5V6F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-B5V6F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-B5V6F?
BZX84W-B5V6F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-B5V6F 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-B5V6F?
For technical support, including BZX84W-B5V6F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-B5V6F requirements.
6.How does Aetrix verify that BZX84W-B5V6F is sourced from the original manufacturer or authorized distributors?
All BZX84W-B5V6F 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-B5V6F meets industry standards.
7.What is the process for return or replacement of BZX84W-B5V6F?
All BZX84W-B5V6F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-B5V6F, 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-B5V6F part is unused and in its original packaging.
Return procedure for BZX84W-B5V6F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-B5V6F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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