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Nexperia USA Inc. BZX84W-C5V6-QX
- Part No.:
- BZX84W-C5V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C5V6-QX.pdf
- Description:
- DIODE ZENER 5.6V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:8,703
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Product details
Overview
BZX84W-C5V6-QX 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 differential resistance and 1.2 mV/K positive temperature coefficient, designed for precision voltage reference and overvoltage protection in automotive power rails.
For engineers reviewing the BZX84W-C5V6-QX datasheet, BZX84W-C5V6-QX pinout, BZX84W-C5V6-QX application, or BZX84W-C5V6-QX equivalent, this part supports AEC-Q101-compliant designs requiring stable low-power regulation, low reverse leakage (1 µA at 2 V), and thermal robustness up to 150 °C junction temperature.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 5.6 V nominal Zener voltage at IZ = 5 mA, exhibiting a positive temperature coefficient of +1.2 mV/K - enabling predictable drift compensation in bias networks. Its 400 Ω differential resistance ensures stable regulation under moderate current variation.
Rated for 275 mW total power dissipation on FR4 PCB with single-sided copper, it delivers non-repetitive surge capability up to 40 W (100 µs pulse), while maintaining <1 µA reverse leakage at VR = 2 V - critical for low-quiescent-current sensing and standby regulation circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.20 V to 6.00 V at IZ = 5 mA - defines regulation window for 5.6 V nominal rail stabilization |
| Differential Resistance (rdiff) | 400 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | 1 µA max at VR = 2 V - enables low-power monitoring without significant standby current draw |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - supports use as clamping diode in bidirectional protection schemes |
| Power Dissipation (Ptot) | 275 mW max on FR4 PCB - sets continuous thermal limit for surface-mount regulator placement |
| Junction Temperature (Tj) | −55 °C to +150 °C - qualifies operation across full automotive ambient range |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including HTOL, TC, and ESD stress testing |
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 maximum A1 height for automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward conduction terminal; connected to lower-potential side in Zener regulation configuration |
| 2 | Not Connected (n.c.) | Electrically isolated internal pad - no PCB trace or solder connection required |
| 3 | Cathode (K) | Reverse-bias terminal; tied to regulated voltage node and current-limiting resistor in standard shunt topology |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables cost-optimized selection for non-critical reference applications without trimming circuitry |
| AEC-Q101 qualification | Validated for automotive power management, infotainment, and body control modules per discrete semiconductor stress test standard |
| Low 1 µA reverse leakage at 2 V | Minimizes parasitic current in always-on circuits such as battery-backed real-time clocks or wake-up supervisors |
| 40 W non-repetitive surge rating | Withstands transient overvoltage events like load dump or inductive kick without degradation |
| Positive +1.2 mV/K tempco | Compensates negative tempcos of other components (e.g., BJTs) in temperature-stable bias networks |
Applications
| Automotive Power Rail Protection | Low-Power Sensor Reference |
|---|---|
|
Use Scenario: Clamping 12 V battery-supplied microcontroller I/O lines against load-dump transients in vehicle door modules. IC Role / Device Role / Timing Role: Shunt Zener regulator providing overvoltage protection by diverting excess current above 5.6 V to ground. Use Value: Limits voltage excursion to ≤6.0 V during 40 W/100 µs surges, preventing latch-up or gate oxide damage in downstream logic. |
Use Scenario: Generating stable 5.6 V reference for analog-to-digital conversion in tire pressure monitoring sensors (TPMS). IC Role / Device Role / Timing Role: Precision voltage reference source with minimal self-heating and predictable thermal drift. Use Value: Delivers <1 µA leakage at 2 V reverse bias, extending coin-cell battery life beyond 10 years in ultra-low-duty-cycle telemetry. |
| Industrial PLC Input Conditioning | Consumer USB Port Overvoltage Clamp |
|
Use Scenario: Level-shifting and protecting 24 V DC digital inputs in programmable logic controllers exposed to field wiring noise. IC Role / Device Role / Timing Role: Zener clamp placed after series current-limiting resistor to absorb induced spikes and EFT bursts. Use Value: Maintains 400 Ω dynamic impedance to stabilize clamped voltage under fast-rising transients up to 1 kV/µs. |
Use Scenario: Preventing damage to USB 2.0 data line receivers during hot-plug ESD events or adapter misconnection. IC Role / Device Role / Timing Role: Bidirectional transient suppressor used in conjunction with TVS diodes for dual-rail protection. Use Value: Provides forward conduction path (VF ≤ 0.9 V) and reverse clamping (VZ = 5.6 V) within USB voltage tolerance limits (0–3.6 V signal swing). |
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-Q | ±2% tolerance (5.49–5.71 V), lower rdiff (480 Ω max), same package and AEC-Q101 rating | Required where tighter regulation stability is needed, e.g., ADC reference buffers or feedback loops | Select when absolute voltage accuracy outweighs cost sensitivity; otherwise BZX84W-C5V6-QX offers optimal balance |
| MMSZ5232B-TP | ±5% tolerance, 5.6 V nominal, SOD-123 package, 500 mW Ptot, not AEC-Q101 qualified | Suitable for industrial/commercial boards but not automotive due to missing qualification and larger footprint | Choose only for non-automotive designs needing higher power margin; avoid where automotive compliance is mandatory |
Compared with BZX84W-B5V6-Q, the C5V6-QX trades 0.22 V tighter voltage window for lower unit cost and sufficient stability in non-critical biasing; versus MMSZ5232B-TP, it provides automotive qualification and smaller SOT323 footprint at reduced power rating.
Availability
BZX84W-C5V6-QX is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer USB protection circuits requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX84W-C5V6-QX 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 energy-efficient solutions.
The BZX84W-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient suppression in harsh automotive environments.
FAQ
What is the maximum continuous reverse current this Zener can handle at 5.6 V?
The device is rated for 200 mA maximum forward current, but as a Zener regulator, its continuous reverse current is limited by power dissipation. At 5.6 V, the maximum safe DC reverse current is 49 mA (275 mW ÷ 5.6 V), assuming 25 °C ambient and standard FR4 PCB mounting per datasheet conditions.
Does the n.c. pin require PCB routing or thermal relief?
No - Pin 2 is internally not connected and must remain unconnected on the PCB. It serves only as a mechanical anchor and does not require soldering, trace routing, or thermal relief; leaving it floating avoids unintended coupling or solder bridging risks.
How does the +1.2 mV/K temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
Over that range, the Zener voltage shifts by approximately +102 mV (1.2 mV/K × 85 K), resulting in a final value near 5.70 V at +125 °C. This predictable positive drift allows system designers to compensate adjacent circuit elements, unlike negative-coefficient Zeners that worsen thermal instability.
Can this diode be used in series with another Zener for higher voltage regulation?
Yes - cascading two BZX84W-C5V6-QX devices yields ~11.2 V nominal regulation, but differential resistance adds (400 Ω + 400 Ω = 800 Ω), increasing output impedance and reducing load regulation. Thermal coupling between devices also affects combined tempco; parallel use is not recommended due to mismatched breakdown characteristics.
BZX84W-C5V6-QX 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-QX FAQ
1.How can I place an order for BZX84W-C5V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C5V6-QX 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-QX reliable?
The price and inventory of BZX84W-C5V6-QX 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-QX is usually 5 days.
3.What payment methods are accepted for BZX84W-C5V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C5V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C5V6-QX?
BZX84W-C5V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C5V6-QX 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-QX?
For technical support, including BZX84W-C5V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C5V6-QX requirements.
6.How does Aetrix verify that BZX84W-C5V6-QX is sourced from the original manufacturer or authorized distributors?
All BZX84W-C5V6-QX 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-QX meets industry standards.
7.What is the process for return or replacement of BZX84W-C5V6-QX?
All BZX84W-C5V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C5V6-QX, 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-QX part is unused and in its original packaging.
Return procedure for BZX84W-C5V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C5V6-QX Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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BZT52C3V6LP-7
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SMAZ12-13-F
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