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Diodes Incorporated QZX363C5V6-7-F
- Part No.:
- QZX363C5V6-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
QZX363C5V6-7-F.pdf
- Description:
- DIODE ZENER ARRAY 5.6V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:5,855
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Product details
Overview
QZX363C5V6-7-F from Diodes Incorporated is a quad surface-mount Zener diode array with nominal 5.6 V zener voltage, 200 mW power dissipation, 40 Ω zener impedance at 5 mA, ±5% voltage tolerance (5.32–5.88 V), and SOT363 package. It functions as a precision voltage reference and transient suppressor in low-power signal conditioning and I/O protection circuits.
For engineers reviewing the QZX363C5V6-7-F datasheet, QZX363C5V6-7-F pinout, QZX363C5V6-7-F application, or QZX363C5V6-7-F equivalent, key selection criteria include zener voltage accuracy, low dynamic impedance, thermal resistance (625 °C/W), junction temperature range (−65 to +150 °C), and RoHS-compliant lead-free plating.
Technical Context
This device integrates four independent Zener diodes in a single SOT363 package, each rated for 5.6 V nominal breakdown at 5 mA test current. It exhibits a temperature coefficient of −2.0 to +2.5 mV/°C and supports stable regulation under DC bias or transient clamping conditions.
The array uses alloy 42 leadframe with matte tin annealed plating, achieves 1.0 µA maximum reverse leakage at VR = 1.0 V, and maintains 400 mA maximum zener knee current at IZK = 1.0 mA - enabling reliable operation in space-constrained, low-power analog interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.32–5.88 V range at IZT = 5 mA - ensures tight voltage reference for 5 V rail monitoring |
| Power Dissipation (PD) | 200 mW - limits continuous clamp energy in low-duty-cycle surge events |
| Zener Impedance (ZZT) | 40 Ω at 1 kHz - provides low AC impedance for stable regulation under small-signal variations |
| Reverse Leakage (IR) | 1.0 µA max at VR = 1.0 V - minimizes standby current in high-impedance sensor bias networks |
| Thermal Resistance (RθJA) | 625 °C/W - requires careful PCB copper area design to maintain TJ < 150 °C at full power |
| Operating Temperature | −65 to +150 °C - supports industrial and automotive under-hood ambient environments |
| Package | SOT363 - 6-pin, 2.15 × 2.10 mm footprint ideal for dense I/O buffer layouts |
Pinout & Package
SOT363 is a 6-pin, dual-row surface-mount plastic package with gull-wing leads. Pin 1 is marked by a notch or dot; pins are arranged as C1–A–C2 on one side and C3–NC–C4 on the other (top view). The NC pin is not internally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (C1) | Cathode of Diode 1 | Connected to anode of external series resistor; cathode tied to regulated node |
| Pin 2 (A) | Anode common connection | Shared anode node for all four diodes - enables parallel clamping or stacked reference |
| Pin 3 (C2) | Cathode of Diode 2 | Independent cathode for second channel; used in differential or dual-rail protection |
| Pin 4 (C3) | Cathode of Diode 3 | Third cathode terminal; supports multi-channel I/O line protection without discrete parts |
| Pin 5 (NC) | No Connection | Unbonded internal terminal - must remain unconnected on PCB |
| Pin 6 (C4) | Cathode of Diode 4 | Fourth cathode; allows simultaneous protection of four signal lines in compact layout |
Key Features
| Feature | Design Value |
|---|---|
| Quad Zener integration | Four independent 5.6 V Zeners in one SOT363 - reduces board area by ~75% vs. discrete 0805 diodes |
| Low zener impedance | 40 Ω at 5 mA - maintains <±20 mV output deviation across 0–10 mA load variation |
| Lead-free & green construction | Matte tin over alloy 42, halogen/antimony-free - meets IPC-J-STD-020 Level 1 moisture sensitivity |
| Stable temperature coefficient | −2.0 to +2.5 mV/°C - enables predictable drift compensation in 0–70 °C operating range |
| Ultra-low leakage | 1.0 µA max at 1 V reverse bias - avoids loading of high-Z sensor outputs or reference dividers |
Applications
| Industrial Sensor Interface | USB Data Line Protection |
|---|---|
Use Scenario: Protecting 4–20 mA current loop transmitter outputs against ESD and cable-induced transients. IC Role / Device Role / Timing Role: Zener array clamps voltage excursions on analog output lines while preserving loop integrity. Use Value: Prevents op-amp saturation and ADC input damage during 8 kV contact ESD events per IEC 61000-4-2. | Use Scenario: Safeguarding USB 2.0 D+ and D− lines from electrostatic discharge in portable docking stations. IC Role / Device Role / Timing Role: Bidirectional clamping diode array referenced to VBUS and GND. Use Value: Limits signal swing to ≤5.6 V above GND and ≥0.7 V below VBUS without distorting 480 Mbps data eye. |
| Automotive Body Control Module | Medical Diagnostic Equipment I/O |
Use Scenario: Conditioning LIN bus signals and switch inputs exposed to 12 V battery transients in vehicle door modules. IC Role / Device Role / Timing Role: Transient voltage suppression for 12 V tolerant digital inputs. Use Value: Withstands ISO 7637-2 Pulse 1 (−150 V) and Pulse 2a (+100 V) without degradation. | Use Scenario: Isolating analog front-end inputs (ECG, SpO₂) from patient-connected electrodes subject to defibrillation pulses. IC Role / Device Role / Timing Role: First-stage overvoltage limiter before instrumentation amplifier input stage. Use Value: Clamps electrode port voltage to safe levels (<6 V) during 5 kV defib pulse, protecting downstream ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B5V6,115 (Nexperia) | Single 5.6 V Zener in SOD323; no quad integration or common anode | Requires four separate devices and routing; higher assembly cost and footprint | Preferred only when discrete placement or thermal isolation between channels is required |
| MMBZ5232BS-7-F (Diodes Inc.) | Quad 5.6 V Zener in SOT363 but with 100 mW rating and 60 Ω ZZT | Lower power handling and higher impedance limit use in sustained clamp scenarios | Acceptable for low-energy ESD-only protection where 200 mW derating margin is not needed |
Compared with BZX384-B5V6,115 and MMBZ5232BS-7-F, QZX363C5V6-7-F delivers higher power margin (200 mW), lower dynamic impedance (40 Ω), and integrated common-anode topology - making it optimal for compact, multi-line analog I/O protection where thermal coupling and layout density matter.
Availability
QZX363C5V6-7-F is available at Aetrix Electronics and suitable for industrial sensor interface, USB data line protection, and automotive body control module applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for QZX363C5V6-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, industry-qualified components for power management, signal integrity, and protection.
The QZX363 series belongs to Diodes' precision Zener diode portfolio, engineered specifically for space-constrained, multi-channel voltage regulation and transient suppression in industrial and automotive electronics.
FAQ
What is the maximum continuous zener current for QZX363C5V6-7-F?
The device supports up to 400 mA zener knee current (IZK) at 1.0 mA test condition, but its absolute maximum continuous current is limited by power dissipation: IZ(max) = PD/VZ ≈ 35.7 mA at 25 °C ambient. Derating applies per Fig. 1 - at 70 °C ambient, max continuous current drops to ~22 mA.
Is Pin 5 (NC) electrically isolated or internally bonded?
Pin 5 is a true no-connect terminal: it has no internal bond wire or die connection. The SOT363 package mold includes this pin for mechanical symmetry and handling robustness, but it must remain unconnected on the PCB layout to avoid unintended grounding or parasitic coupling.
Can QZX363C5V6-7-F be used in bidirectional TVS configurations?
No - it is a unidirectional Zener array with cathodes on Pins 1/3/4 and shared anode on Pin 2. For bidirectional clamping, external series diodes or dedicated TVS arrays like D3V3Z5U-7-F are required. This part only clamps positive transients relative to the common anode node.
How does the common-anode configuration affect circuit implementation?
The shared anode (Pin 2) must be tied to the reference potential - typically system ground or a negative rail. Each cathode (Pins 1,3,4) then clamps its respective signal line to that reference plus VZ. This topology simplifies layout for multiple lines referenced to the same node but prevents independent anode biasing per channel.
QZX363C5V6-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 2 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 200 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:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
QZX363C5V6-7-F FAQ
1.How can I place an order for QZX363C5V6-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for QZX363C5V6-7-F 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 QZX363C5V6-7-F reliable?
The price and inventory of QZX363C5V6-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QZX363C5V6-7-F is usually 5 days.
3.What payment methods are accepted for QZX363C5V6-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QZX363C5V6-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QZX363C5V6-7-F?
QZX363C5V6-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QZX363C5V6-7-F 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 QZX363C5V6-7-F?
For technical support, including QZX363C5V6-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QZX363C5V6-7-F requirements.
6.How does Aetrix verify that QZX363C5V6-7-F is sourced from the original manufacturer or authorized distributors?
All QZX363C5V6-7-F 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 QZX363C5V6-7-F meets industry standards.
7.What is the process for return or replacement of QZX363C5V6-7-F?
All QZX363C5V6-7-F units undergo pre-shipment inspection (PSI). If there is an issue with QZX363C5V6-7-F, 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 QZX363C5V6-7-F part is unused and in its original packaging.
Return procedure for QZX363C5V6-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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