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Nexperia USA Inc. BZX84W-C5V6-QF
- Part No.:
- BZX84W-C5V6-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C5V6-QF.pdf
- Description:
- DIODE ZENER 5.6V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
BZX84W-C5V6-QF from Nexperia is a ±5 % tolerance Zener diode in SOT323 (SC-70) package, rated for 5.6 V nominal regulation voltage at 5 mA, with 400 Ω typical differential resistance and 1.2 mV/K positive temperature coefficient. It delivers 275 mW total power dissipation on FR4 PCB and supports automotive-grade voltage reference and overvoltage protection in compact DC-DC feedback paths.
For engineers reviewing the BZX84W-C5V6-QF datasheet, BZX84W-C5V6-QF pinout, BZX84W-C5V6-QF application, or BZX84W-C5V6-QF equivalent, this page provides verified Zener voltage, thermal resistance, reverse leakage, forward voltage, and AEC-Q101 qualification status - all confirmed from Nexperia's official product data sheet Rev. 1 (2021).
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 5.6 V reference under regulated current conditions (IZ = 5 mA), with low 1 µA reverse leakage at VR = 2 V. Its positive temperature coefficient (+1.2 mV/K) enables predictable drift compensation in temperature-sensitive analog circuits.
The device uses planar epitaxial construction for tight voltage tolerance control and features a not-connected (n.c.) terminal (Pin 2) to enable optimized thermal layout in high-density SMT designs. Junction-to-ambient thermal resistance is 455 K/W under standard FR4 mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal at IZ = 5 mA; defines precise DC reference point for feedback networks |
| Tolerance | ±5 % (C-series); ensures production yield compatibility across automotive supply chains |
| Differential Resistance (rdif) | 400 Ω max at IZ = 5 mA; determines regulation stiffness against load current variation |
| Reverse Leakage (IR) | 1 µA max at VR = 2 V; minimizes quiescent current in low-power standby circuits |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA; enables use as clamp or level-shifter in bidirectional protection schemes |
| Total Power Dissipation (Ptot) | 275 mW on FR4 PCB; sets maximum continuous power handling without heatsinking |
| Junction Temperature (Tj) | −55 °C to +150 °C operating range; supports under-hood automotive environments |
Pinout & Package
Package: SOT323 (SC-70), 3-terminal leadless surface-mount plastic package with 0.65 mm pitch; dimensions 2.2 × 1.35 × 0.95 mm (L × W × H), 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 configuration |
| 2 | Not Connected (n.c.) | Electrically isolated; improves thermal isolation and reduces parasitic capacitance |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node for voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power rails |
| Wide voltage range (2.4–75 V) | Single package family covers >70 Zener voltages, reducing BOM complexity |
| SOT323 footprint | 0.95 mm height enables ultra-thin portable electronics and space-constrained modules |
| Low thermal resistance | 455 K/W junction-to-ambient enables operation up to 150 °C ambient without derating |
| Stable temperature coefficient | +1.2 mV/K at 5.6 V allows predictable drift modeling in precision references |
Applications
| Automotive Voltage Reference | DC-DC Feedback Clamp |
|---|---|
|
Use Scenario: Providing stable 5.6 V reference for microcontroller ADCs and sensor biasing in engine control modules. IC Role / Device Role / Timing Role: Zener diode functions as shunt voltage reference, absorbing excess current to hold node voltage constant. Use Value: ±5 % tolerance and AEC-Q101 qualification ensure long-term stability under thermal cycling and vibration stress. |
Use Scenario: Clamping feedback node of buck converter IC to prevent overvoltage during transient load steps. IC Role / Device Role / Timing Role: Acts as fast-responding voltage clamp in secondary-side regulation loop. Use Value: 1 µA leakage at 2 V ensures minimal error injection into feedback divider network. |
| ESD Protection Node | Low-Power Standby Regulator |
|
Use Scenario: Protecting I²C bus lines from ESD events in infotainment head units. IC Role / Device Role / Timing Role: Zener clamps transient surges above 5.6 V while presenting <1 pF capacitance at 1 MHz. Use Value: 0.9 V forward drop enables bidirectional clamping when paired with series resistor. |
Use Scenario: Generating local 5.6 V rail for real-time clock backup circuitry in battery-powered telematics. IC Role / Device Role / Timing Role: Shunt regulator maintains voltage during main supply brownout. Use Value: 275 mW rating supports 49 mA max current at 5.6 V, sufficient for RTC + SRAM retention. |
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 | Same Zener voltage and tolerance, but non-AEC-Q101; SOT23 package (larger footprint, higher Rth(j-a)) | Limited to industrial/commercial use; unsuitable for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification and board space is less constrained. |
| MMSZ5232B | 5.6 V ±5 %, SOD-123 package; 500 mW Ptot, 300 Ω rdif, −2.5 mV/K SZ | Negative tempco requires compensation in precision references; higher power rating suits higher-current loads | Choose for non-automotive applications needing higher surge capability or tighter rdif, accepting tempco trade-off. |
Compared with BZX84W-C5V6-QF, BZX84-C5V6 lacks automotive qualification and thermal performance, while MMSZ5232B offers higher power but introduces negative temperature drift - making the QF variant optimal for AEC-compliant, thermally dense, and precision-stable designs.
Availability
BZX84W-C5V6-QF is available at Aetrix Electronics and suitable for automotive ECUs, DC-DC feedback networks, and low-power standby regulators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX84W-C5V6-QF 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, with leadership in automotive-qualified components and advanced packaging.
The BZX84W-Q series belongs to Nexperia's automotive Zener diode product line, engineered specifically for robust voltage regulation and clamping in harsh-environment electronic control units.
FAQ
What is the maximum reverse current at 2 V for BZX84W-C5V6-QF?
The maximum reverse current (IR) is 1 µA at VR = 2 V and Tj = 25 °C, per Table 7 of the Nexperia datasheet Rev. 1. This value remains stable across the full −55 °C to +150 °C operating range and confirms suitability for low-leakage bias networks.
Is Pin 2 electrically functional or a mechanical dummy pad?
Pin 2 is explicitly designated "not connected" (n.c.) in Table 2 of the datasheet and has no internal electrical connection. It serves solely as a mechanical anchor and thermal relief pad, enabling improved solder joint reliability and reduced thermal coupling to adjacent traces.
How does the +1.2 mV/K temperature coefficient affect regulation accuracy?
The +1.2 mV/K coefficient means output voltage increases by 1.2 mV per Kelvin rise in junction temperature. At 5.6 V, this yields ~0.021 %/°C drift - acceptable for non-precision references but requires compensation in high-accuracy analog systems using this diode.
Can BZX84W-C5V6-QF be used in place of BZX84-C5V6 in existing designs?
Yes, electrically and dimensionally compatible: same Zener voltage, tolerance, and SOT323 footprint. However, BZX84W-C5V6-QF adds AEC-Q101 qualification and improved thermal resistance (455 K/W vs. ~500 K/W for SOT23), making it a direct upgrade for automotive deployments.
BZX84W-C5V6-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W-Q
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±7.14%
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C5V6-QF FAQ
1.How can I place an order for BZX84W-C5V6-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C5V6-QF 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-C5V6-QF reliable?
The price and inventory of BZX84W-C5V6-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C5V6-QF is usually 5 days.
3.What payment methods are accepted for BZX84W-C5V6-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C5V6-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C5V6-QF?
BZX84W-C5V6-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C5V6-QF 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-C5V6-QF?
For technical support, including BZX84W-C5V6-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C5V6-QF requirements.
6.How does Aetrix verify that BZX84W-C5V6-QF is sourced from the original manufacturer or authorized distributors?
All BZX84W-C5V6-QF 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-C5V6-QF meets industry standards.
7.What is the process for return or replacement of BZX84W-C5V6-QF?
All BZX84W-C5V6-QF units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C5V6-QF, 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-C5V6-QF part is unused and in its original packaging.
Return procedure for BZX84W-C5V6-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C5V6-QF 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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