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Diodes Incorporated QZX363C12-7-F
- Part No.:
- QZX363C12-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
QZX363C12-7-F.pdf
- Description:
- DIODE ZENER ARRAY 12V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:9,915
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Product details
Overview
QZX363C12-7-F from Diodes Incorporated is a quad surface-mount Zener diode array with nominal 12V Zener voltage (VZ = 12V @ IZT = 5mA), 200 mW power dissipation, 30 Ω maximum Zener impedance at 5mA, and SOT363 package. It provides precision voltage regulation and transient suppression in compact space-constrained PCB layouts for automotive body electronics and industrial sensor signal conditioning.
For engineers reviewing the QZX363C12-7-F datasheet, QZX363C12-7-F pinout, QZX363C12-7-F application, or QZX363C12-7-F equivalent, this device serves as a quad-channel discrete Zener solution requiring verified breakdown tolerance, low thermal resistance (625 °C/W), stable temperature coefficient (±12.0 mV/°C), and RoHS-compliant lead-free termination for high-reliability board-level protection.
Technical Context
This quad Zener array integrates four independent Zener diodes in a single SOT363 package, each configured for unidirectional reverse-biased voltage clamping. Each channel exhibits a typical Zener voltage of 12V (min 11.4V, max 12.6V) at test current IZT = 5mA, with maximum reverse leakage current of 0.1 µA at VR = 9.6V.
The device operates across –65°C to +150°C ambient range and derates linearly above 25°C per Fig. 1, maintaining 200 mW total power dissipation at TA = 25°C. Its 30 Ω Zener impedance at 1 kHz ensures stable regulation under dynamic load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.0 V nominal @ 5 mA; tight 11.4–12.6 V range enables accurate reference or clamp level setting |
| Power Dissipation (PD) | 200 mW at 25°C; supports continuous low-power regulation without forced cooling |
| Zener Impedance (ZZT) | 30 Ω max @ 1 kHz, 5 mA; ensures minimal output voltage variation during current transients |
| Reverse Leakage (IR) | 0.1 µA max @ VR = 9.6 V; guarantees low standby power loss in always-on circuits |
| Temp Coefficient (TC) | ±12.0 mV/°C; predictable drift behavior simplifies thermal compensation in precision analog stages |
| Package | SOT363; 6-pin ultra-small footprint (2.15 × 2.10 mm) saves >60% board area vs. discrete SO-8 solutions |
| RoHS Compliance | Fully lead-free, halogen- and antimony-free "Green" device per EU RoHS 3 (2015/863/EU) |
Pinout & Package
SOT363 package: 6-pin, dual-row, surface-mount plastic case (UL 94V-0), 0.006 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (C1) | Anode of Diode 1 | Connects to circuit node requiring clamping to 12V reference; reverse-biased during operation |
| 2 (C2) | Cathode of Diode 1 | Common cathode connection point for Diode 1; ties to regulated rail or ground return path |
| 3 (A) | NC (No Connect) | Internally unconnected; must remain floating-no external tie or pull-up/pull-down |
| 4 (C3) | Anode of Diode 2 | Independent anode for second 12V Zener; enables dual-rail clamping on same net or separate nets |
| 5 (C4) | Cathode of Diode 2 | Shared cathode terminal for Diodes 2 and 3 per internal schematic; requires proper current sharing design |
| 6 (NC) | No Connect | Unused pin; left unconnected per manufacturer marking diagram and mechanical drawing |
Key Features
| Feature | Design Value |
|---|---|
| Quad Zener integration | Four independent 12V Zener elements in one SOT363 reduce component count by 75% vs. discrete 0805 diodes |
| Low Zener impedance | 30 Ω max ensures <120 mV output shift under ±1 mA load step-critical for ADC reference stability |
| High-temperature operation | Rated from –65°C to +150°C enables use in under-hood automotive modules without derating penalties |
| Lead-free & Green compliance | Meets RoHS 3, halogen-free (<900 ppm Br/Cl), and antimony-free standards for global environmental compliance |
| Ultra-small footprint | 2.15 mm × 2.10 mm outline fits within 3.5 mm² PCB area-ideal for wearables and IoT edge nodes |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping CAN transceiver supply rails against load-dump spikes up to ±30V. IC Role / Device Role / Timing Role: Quad Zener acts as bidirectional overvoltage protector for 12V domain, with two channels guarding VCC and two guarding isolated logic rails. Use Value: 12V nominal breakdown prevents latch-up in transceivers while 200 mW rating sustains 100 ms surge events without thermal runaway. | Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors in factory automation. IC Role / Device Role / Timing Role: Provides precise 12V reference for op-amp biasing and DAC output scaling in analog front-end circuitry. Use Value: ±12.0 mV/°C TC and 30 Ω ZZT maintain <0.5% full-scale error across –40°C to +85°C operating range. |
| USB-C Power Delivery Interface | Medical Patient Monitor Front-End |
Use Scenario: Protecting CC line ESD-sensitive PHY from IEC 61000-4-2 ±8 kV contact discharge. IC Role / Device Role / Timing Role: Single-channel Zener clamps CC voltage to safe 12V level while other channels guard VBUS sense and configuration logic rails. Use Value: 0.1 µA reverse leakage avoids loading CC line's 5.1 kΩ pull-down resistor, preserving USB PD handshake integrity. | Use Scenario: Regulating bias voltage for low-noise instrumentation amplifiers measuring biopotentials (ECG/EEG). IC Role / Device Role / Timing Role: Supplies clean, low-drift 12V reference to op-amp gain stages and ADC reference buffers. Use Value: Tight 11.4–12.6 V VZ tolerance and 625 °C/W RθJA prevent thermal-induced offset drift in millivolt-level signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad Zener diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B12,115 (Nexperia) | Single 12V Zener in SOD323; no quad integration; 400 mW PD; 30 Ω ZZT | Requires four discrete placements; higher board area; better surge handling per diode | Select when higher per-diode power margin is needed and layout space allows discrete placement. |
| MMBZ5242B-7-F (Diodes Inc.) | Single 12V Zener in SOT23; 350 mW PD; 33 Ω ZZT; same RoHS/Green spec | Not quad-integrated; lacks channel isolation; higher thermal resistance (700 °C/W) | Choose for cost-sensitive single-rail designs where quad integration adds no value. |
Compared with BZX384-B12 and MMBZ5242B-7-F, QZX363C12-7-F uniquely delivers four matched 12V Zeners in one SOT363, reducing layout complexity and inter-channel mismatch-critical for multi-rail protection and precision reference distribution.
Availability
QZX363C12-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioners, USB-C power delivery interfaces, and medical patient monitor front-ends requiring stable component supply and long-term lifecycle support.
Supply support for QZX363C12-7-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The QZX363 series belongs to Diodes' precision Zener diode portfolio, engineered specifically for space-constrained, high-reliability voltage regulation and transient suppression in automotive, industrial, and medical applications.
FAQ
What is the maximum reverse current specification for QZX363C12-7-F at 9.6V?
The maximum reverse current (IR) is 0.1 µA at VR = 9.6 V and TA = 25°C, as specified in the Electrical Characteristics table. This low leakage ensures minimal power loss in always-on monitoring circuits and preserves accuracy in high-impedance reference networks.
Does QZX363C12-7-F have a documented thermal resistance for junction-to-case?
No-only junction-to-ambient thermal resistance (RθJA) is specified: 625 °C/W, measured on FR-4 board with recommended pad layout. Junction-to-case (RθJC) is not published in DS30143 Rev. 14-2, and no alternate thermal data is available from Diodes Incorporated's official documentation.
Can Pin 3 (A) be used as a functional terminal?
No-Pin 3 is explicitly marked "NC" (No Connect) in the top-view schematic and mechanical drawings. It is internally unconnected and must remain floating; connecting it risks unintended parasitic coupling or violation of UL 94V-0 flammability rating due to altered thermal path.
Is QZX363C12-7-F qualified for AEC-Q200 stress testing?
No-QZX363C12-7-F is not listed in Diodes Incorporated's AEC-Q200 qualified products database. While rated for –65°C to +150°C operation and used in automotive applications, it carries only standard industrial qualification; AEC-Q200 compliance requires explicit part-number-level certification, which this variant does not hold.
QZX363C12-7-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):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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
QZX363C12-7-F FAQ
1.How can I place an order for QZX363C12-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for QZX363C12-7-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 QZX363C12-7-F reliable?
The price and inventory of QZX363C12-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for QZX363C12-7-F is usually 5 days.
3.What payment methods are accepted for QZX363C12-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for QZX363C12-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for QZX363C12-7-F?
QZX363C12-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your QZX363C12-7-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 QZX363C12-7-F?
For technical support, including QZX363C12-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your QZX363C12-7-F requirements.
6.How does Aetrix verify that QZX363C12-7-F is sourced from the original manufacturer or authorized distributors?
All QZX363C12-7-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 QZX363C12-7-F meets industry standards.
7.What is the process for return or replacement of QZX363C12-7-F?
All QZX363C12-7-F units undergo pre-shipment inspection (PSI). If there is an issue with QZX363C12-7-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 QZX363C12-7-F part is unused and in its original packaging.
Return procedure for QZX363C12-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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