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Nexperia USA Inc. PDZ3.6B-QF
- Part No.:
- PDZ3.6B-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ3.6B-QF.pdf
- Description:
- DIODE ZENER 3.6V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,472
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Product details
Overview
PDZ3.6B-QF from Nexperia is a single Zener diode designed for precision low-voltage regulation in space-constrained SMD applications, with nominal Zener voltage 3.60 V to 3.85 V at IZ = 5 mA, ±2 % tolerance, 90 Ω max differential resistance at 5 mA, −2.4 mV/K temperature coefficient, and 400 mW total power dissipation on FR4 PCB. It serves as a stable reference or clamp in automotive sensor signal conditioning circuits.
For engineers reviewing the PDZ3.6B-QF datasheet, PDZ3.6B-QF pinout, PDZ3.6B-QF application, or PDZ3.6B-QF equivalent, this device is selected for its AEC-Q101 qualification, low leakage (5 µA max at VR = 1.0 V), hard breakdown knee, and suitability in 3.3 V rail stabilization where thermal stability and small-footprint mounting are critical.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain a stable reference voltage across its cathode-anode terminals. Its −2.4 mV/K temperature coefficient ensures predictable drift over temperature, and its 90 Ω dynamic impedance at 5 mA enables tight regulation under varying load currents.
The device uses a planar silicon process in an SOD323 package with defined thermal resistance (Rth(j-a) = 340 K/W) and junction-to-solder-point resistance (Rth(j-sp) = 130 K/W), enabling accurate derating above 25 °C ambient per the published power curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.60 V to 3.85 V at IZ = 5 mA - defines nominal regulation point with ±2.4 % variation across production lot |
| Differential Resistance rdif | 90 Ω max at IZ = 5 mA - determines output impedance and voltage deviation under current step loads |
| Reverse Current IR | 5 µA max at VR = 1.0 V - ensures minimal standby power loss in high-impedance bias networks |
| Power Dissipation Ptot | 400 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC or pulsed power handling before thermal shutdown |
| Temperature Coefficient SZ | −2.4 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius, critical for temperature-critical references |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - defines conduction threshold when used in bidirectional protection or clamping configurations |
| Junction Temperature Tj | +150 °C max - establishes upper thermal limit for reliability in under-hood automotive environments |
Pinout & Package
PDZ3.6B-QF is housed in a SOD323 (SC-76) surface-mount plastic package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode identified by a marking bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias voltage applied here relative to anode to enable Zener conduction |
| 2 | Anode (A) | Typically tied to ground or lower-potential rail; completes current path during regulation or transient clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards |
| Hard breakdown knee | Sharp, well-defined Zener transition enables precise voltage clamping without soft turn-on ambiguity |
| Low leakage current | 5 µA max at 1.0 V reverse bias reduces quiescent error in high-impedance feedback paths |
| Small SOD323 footprint | 0.95 mm height and 1.35 mm width allow placement in dense PCB layouts near IC power pins or sensors |
| Stable temperature coefficient | −2.4 mV/K enables predictable compensation in analog front-end references across −40 °C to +125 °C |
Applications
| Automotive Cabin Sensor Reference | Industrial 3.3 V Rail Clamp |
|---|---|
|
Use Scenario: Stabilizing reference voltage for MEMS pressure sensor signal conditioning in HVAC control modules. IC Role / Device Role / Timing Role: Zener diode provides fixed 3.6 V reference to op-amp bias network, replacing larger TL431-based solutions. Use Value: Enables direct connection to 3.3 V supply with <5 µA leakage, minimizing offset drift and eliminating need for external resistive divider. |
Use Scenario: Clamping transient overvoltage on microcontroller I/O lines exposed to ESD events in factory automation PLCs. IC Role / Device Role / Timing Role: Reverse-biased PDZ3.6B-QF shunts surge energy to ground before voltage exceeds 3.85 V, protecting 3.3 V tolerant inputs. Use Value: Achieves sub-100 ns response with 90 Ω dynamic impedance, limiting peak voltage to within 10 % of rated IO voltage. |
| USB-C Power Negotiation Monitor | Medical Wearable Battery Gauge Reference |
|
Use Scenario: Providing stable bias to voltage divider monitoring CC line voltage during USB PD contract negotiation. IC Role / Device Role / Timing Role: Zener regulates local 3.6 V node feeding comparator input, ensuring consistent trip thresholds despite VBUS ripple. Use Value: −2.4 mV/K TC and 2 % tolerance maintain ±15 mV accuracy over 0–70 °C, meeting USB PD spec timing margins. |
Use Scenario: Supplying reference voltage to ADC in lithium-ion battery fuel gauge circuit of portable ECG patch. IC Role / Device Role / Timing Role: Acts as low-power bandgap alternative, delivering 3.6 V reference with <1 µA self-consumption at 1.8 V system supply. Use Value: 400 mW rating allows operation up to 110 mA reverse current, supporting fast-charging state detection without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V6 | Same 3.6 V nominal, but ±5 % tolerance and 150 Ω rdif at 5 mA; not AEC-Q101 qualified | Limited to consumer-grade power rails where thermal drift and long-term stability are non-critical | Select when cost sensitivity outweighs automotive qualification and tighter regulation needs |
| MMSZ4685 | 3.6 V nominal, ±5 % tolerance, 100 Ω rdif, 500 mW Ptot, SOD-123 package (larger footprint) | Suitable for higher-power industrial supplies but lacks AEC-Q101 validation and has inferior TC (−2.0 mV/K) | Choose only if board layout permits SOD-123 and thermal margin exceeds 400 mW requirement |
Compared with BZX384-B3V6 and MMSZ4685, PDZ3.6B-QF delivers superior regulation accuracy (±2 % vs. ±5 %), lower dynamic impedance (90 Ω vs. ≥100 Ω), and guaranteed automotive qualification-making it the only option for safety-relevant 3.6 V references in AEC-compliant designs.
Availability
PDZ3.6B-QF is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial 3.3 V rail protection, and medical wearable battery monitoring requiring stable component supply with full traceability and lifecycle support.
Supply support for PDZ3.6B-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 specializing in high-volume, high-reliability discrete and logic devices, with manufacturing rooted in process control and automotive-grade quality systems.
PDZ-B-Q series targets automotive and industrial voltage regulation needs, delivering AEC-Q101-qualified Zener diodes optimized for compact SMD layouts, stable TC, and hard-knee breakdown behavior.
FAQ
What is the maximum reverse current PDZ3.6B-QF can handle continuously?
The device supports continuous reverse current up to 110 mA at 25 °C ambient, calculated from Ptot = 400 mW and VZ ≈ 3.6 V. Derating applies above 25 °C per the published power curve, reaching zero dissipation at ~150 °C junction temperature.
Does PDZ3.6B-QF require a series resistor in standard regulation use?
Yes-a current-limiting resistor is mandatory to set operating current between 1 mA and 110 mA. For 5 mA nominal operation at 3.6 V from a 5 V rail, a 280 Ω resistor yields 1.4 V drop and 5 mA current, staying within 90 Ω rdif and thermal limits.
How does the −2.4 mV/K temperature coefficient affect regulation accuracy over temperature?
Over a −40 °C to +125 °C range (165 K span), the coefficient causes up to ±396 mV shift (165 × 2.4 mV). Combined with initial ±2 % tolerance (±72 mV), worst-case total variation is ±468 mV-still within 13 % of nominal 3.6 V, acceptable for non-precision biasing.
Can PDZ3.6B-QF be used in forward-bias mode as a standard diode?
Yes-it exhibits 0.9 V forward voltage at 10 mA, suitable for low-current steering or polarity protection. However, its 200 mA absolute maximum forward current and lack of specified soft recovery make it unsuitable for switching or rectification above 10 mA.
PDZ3.6B-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B-Q
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ3.6B-QF FAQ
1.How can I place an order for PDZ3.6B-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ3.6B-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 PDZ3.6B-QF reliable?
The price and inventory of PDZ3.6B-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ3.6B-QF is usually 5 days.
3.What payment methods are accepted for PDZ3.6B-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ3.6B-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ3.6B-QF?
PDZ3.6B-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ3.6B-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 PDZ3.6B-QF?
For technical support, including PDZ3.6B-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ3.6B-QF requirements.
6.How does Aetrix verify that PDZ3.6B-QF is sourced from the original manufacturer or authorized distributors?
All PDZ3.6B-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 PDZ3.6B-QF meets industry standards.
7.What is the process for return or replacement of PDZ3.6B-QF?
All PDZ3.6B-QF units undergo pre-shipment inspection (PSI). If there is an issue with PDZ3.6B-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 PDZ3.6B-QF part is unused and in its original packaging.
Return procedure for PDZ3.6B-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ3.6B-QF Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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