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Nexperia USA Inc. BZX84W-C5V6X
- Part No.:
- BZX84W-C5V6X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C5V6X.pdf
- Description:
- DIODE ZENER 5.6V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
BZX84W-C5V6X from Nexperia is a ±5 % 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 positive temperature coefficient - used for precision low-power voltage reference and overvoltage clamping in power supply feedback paths.
For engineers reviewing the BZX84W-C5V6X datasheet, BZX84W-C5V6X pinout, BZX84W-C5V6X application, or BZX84W-C5V6X equivalent, this page delivers verified electrical specs, thermal behavior, SOT323 terminal mapping, and real-world use cases for embedded voltage regulation and ESD-robust signal conditioning.
Technical Context
This Zener diode operates in reverse breakdown with tightly controlled VZ = 5.2 V to 6.0 V (±5 %) at IZ = 5 mA, exhibiting a positive temperature coefficient of +1.2 mV/K - enabling stable reference performance across industrial temperature ranges. Its 400 Ω differential resistance ensures predictable dynamic impedance under varying load conditions.
Designed for surface-mount reliability, it delivers 275 mW total power dissipation on FR4 PCB with single-sided copper, and supports non-repetitive surge handling up to 40 W (100 µs pulse), making it suitable for transient suppression in low-current bias networks and analog sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2 V to 6.0 V at IZ = 5 mA - defines precise clamping threshold for 5 V rail stabilization |
| Differential Resistance (rdif) | 400 Ω max at IZ = 5 mA - determines output voltage variation under current changes |
| Temperature Coefficient (SZ) | +1.2 mV/K - enables predictable VZ drift compensation in temperature-sensitive references |
| Reverse Current (IR) | 1 µA max at VR = 2 V - ensures minimal leakage in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 275 mW on FR4 PCB - sets maximum continuous DC power handling in standard layout |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - defines forward conduction loss in dual-direction protection schemes |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in extended industrial environments |
Pinout & Package
SOT323 (SC-70) leadless plastic surface-mount package with 3 terminals; compact 2.2 mm × 1.35 mm footprint optimized for high-density PCB layouts and reflow soldering.
| 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 in PCB layout to avoid parasitic coupling |
| 3 | Cathode (K) | Reverse-biased terminal; ties to regulated output node or voltage reference point |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical 5 V reference applications without trimming |
| Low 1 µA reverse leakage at 2 V | Maintains accuracy in high-impedance divider networks and battery-powered sensors |
| Positive +1.2 mV/K tempco | Compensates for negative tempcos in associated circuitry (e.g., op-amp inputs or resistors) |
| 275 mW power rating on FR4 | Supports sustained regulation in 5 V LDO feedback loops and microcontroller reset circuits |
| SOT323 package with n.c. pin | Reduces stray capacitance vs. 2-pin variants, improving HF stability in RF bias networks |
Applications
| Power Supply Feedback Reference | ESD-Protected Signal Clamping |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in adjustable DC-DC converter ICs (e.g., TLV62568) where internal reference is bypassed. IC Role / Device Role / Timing Role: Zener diode provides external 5.6 V reference to set output voltage via resistor divider. Use Value: Tight 5.2–6.0 V tolerance ensures ±2 % output regulation accuracy without calibration. |
Use Scenario: Protecting ADC input pins against transients in industrial sensor interfaces (e.g., 4–20 mA loop receivers). IC Role / Device Role / Timing Role: Bidirectional clamping device limiting voltage swing between GND and 5.6 V rail. Use Value: 1 µA leakage preserves signal integrity; 400 Ω rdif ensures fast recovery after ESD event. |
| Microcontroller Reset Circuit | Low-Power Voltage Monitor |
|
Use Scenario: Generating clean reset pulse during 5 V rail startup in ARM Cortex-M0+ systems. IC Role / Device Role / Timing Role: Zener-based threshold detector triggering RC-delayed reset assertion. Use Value: +1.2 mV/K tempco counterbalances silicon bandgap drift, maintaining reset threshold across −40 °C to +85 °C. |
Use Scenario: Monitoring backup battery voltage (e.g., CR2032) in real-time clock modules. IC Role / Device Role / Timing Role: Low-current Zener shunt regulating reference for comparator input. Use Value: 275 mW Ptot allows operation at 10 µA bias current, extending battery life beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-B5V6 | ±2 % tolerance (5.49–5.71 V), 480 Ω rdif, −0.8 mV/K tempco | Higher precision but negative tempco - less suitable for ambient-compensated references | Select when tighter VZ tolerance is required and tempco mismatch can be managed externally |
| MMBZ5232BS | ±5 % tolerance (5.3–5.9 V), 17 Ω rdif, SOD-323 package, 350 mW rating | Lower impedance and higher power - better for higher-current shunt regulation | Choose for >10 mA regulation loads or where lower dynamic impedance improves loop stability |
Compared with BZX84W-C5V6X, the BZX84W-B5V6 offers tighter voltage control but requires external tempco compensation, while MMBZ5232BS trades SOT323 size for superior dynamic regulation at higher currents - guiding selection based on precision, thermal behavior, and load current requirements.
Availability
BZX84W-C5V6X is available at Aetrix Electronics and suitable for power supply feedback reference, ESD-protected signal clamping, and microcontroller reset circuit applications requiring stable component supply and consistent parametric performance across production batches.
Supply support for BZX84W-C5V6X 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-volume, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-sensitive, space-constrained voltage regulation and clamping in mass-produced consumer and industrial electronics.
FAQ
What is the maximum continuous reverse current the BZX84W-C5V6X can handle?
The device is rated for 200 mA maximum forward current, but its Zener operation is defined at test currents up to 5 mA. Continuous reverse current must stay within power limits: at 5.6 V, sustained current must not exceed ~49 mA (275 mW ÷ 5.6 V) to avoid exceeding Ptot on standard FR4 PCB.
Can BZX84W-C5V6X replace a 5.1 V Zener in an existing design?
No - its nominal 5.6 V Zener voltage differs by 10 % from 5.1 V, altering regulation thresholds and feedback ratios. Substitution would require recalculating all associated resistive dividers and verifying loop stability, especially given its +1.2 mV/K tempco versus typical 5.1 V Zeners' near-zero or negative coefficients.
Is Pin 2 (n.c.) electrically isolated or internally tied to substrate?
Pin 2 is fully unconnected - no internal bond wire or die attachment. It serves only as mechanical support and thermal path; routing traces to it introduces parasitic capacitance and risks shorting. The datasheet explicitly states "not connected" and shows no internal connection in the simplified outline graphic.
How does thermal resistance affect derating above 25 °C ambient?
With Rth(j-a) = 455 K/W, junction temperature rises ~23 °C per 50 mW at 25 °C ambient. To maintain Tj ≤ 125 °C in +70 °C ambient, maximum allowable power drops to ~122 mW - requiring current reduction to ~22 mA at 5.6 V, confirmed by the derating curve in Figure 1 of the datasheet.
BZX84W-C5V6X 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:
- ±5%
- 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-C5V6X FAQ
1.How can I place an order for BZX84W-C5V6X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C5V6X 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-C5V6X reliable?
The price and inventory of BZX84W-C5V6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C5V6X is usually 5 days.
3.What payment methods are accepted for BZX84W-C5V6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C5V6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C5V6X?
BZX84W-C5V6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C5V6X 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-C5V6X?
For technical support, including BZX84W-C5V6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C5V6X requirements.
6.How does Aetrix verify that BZX84W-C5V6X is sourced from the original manufacturer or authorized distributors?
All BZX84W-C5V6X 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-C5V6X meets industry standards.
7.What is the process for return or replacement of BZX84W-C5V6X?
All BZX84W-C5V6X units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C5V6X, 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-C5V6X part is unused and in its original packaging.
Return procedure for BZX84W-C5V6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C5V6X Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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