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Nexperia USA Inc. PDZ10B-QF
- Part No.:
- PDZ10B-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ10B-QF.pdf
- Description:
- DIODE ZENER 10V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,512
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Product details
Overview
PDZ10B-QF from Nexperia is a single silicon Zener diode designed for precision voltage regulation and reference applications in automotive and industrial circuits. It delivers a nominal Zener voltage of 10.0 V at 5 mA, with ±2 % tolerance, 60 Ω typical differential resistance at 5 mA, and 0.1 μA maximum reverse leakage at 7.0 V - qualified to AEC-Q101 and housed in an SOD323 (SC-76) surface-mount package.
For engineers reviewing the PDZ10B-QF datasheet, PDZ10B-QF pinout, PDZ10B-QF application, or PDZ10B-QF equivalent, this device is selected for low-leakage, stable voltage clamping in power supply feedback paths, overvoltage protection circuits, and automotive sensor biasing where tight voltage accuracy and thermal robustness are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a hard knee characteristic, enabling sharp, predictable regulation at low test currents (IZ = 0.5 mA to 5 mA). Its temperature coefficient of +6.4 mV/K at 5 mA supports stable performance across −65 °C to +150 °C junction temperature range.
Designed for surface-mount assembly on FR4 PCBs with standard footprint, it features a thermal resistance of 340 K/W (junction-to-ambient) and 130 K/W (junction-to-solder point), supporting reliable power dissipation up to 400 mW at 25 °C ambient with defined derating above that temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.77 V to 10.21 V at IZ = 5 mA - ensures precise regulation within ±2 % tolerance for feedback and reference use |
| Differential Resistance (rdif) | 60 Ω max at IZ = 5 mA - maintains low output impedance for stable voltage under varying load |
| Reverse Leakage (IR) | 0.1 μA max at VR = 7.0 V - minimizes standby current loss in battery-sensitive systems |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - supports compact layout without forced cooling in space-constrained designs |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - enables low-loss forward conduction during transient clamping or polarity protection |
| Temperature Coefficient (SZ) | +6.4 mV/K at IZ = 5 mA - provides predictable, positive drift for compensation-aware circuit design |
| Junction Temperature (Tj) | +150 °C max - enables operation in under-hood automotive environments and high-temperature industrial enclosures |
Pinout & Package
The PDZ10B-QF is housed in a plastic SOD323 (SC-76) surface-mount package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode indicated by a marking bar on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 (A) | Anode | Connected to ground or lower-potential rail; defines polarity for proper biasing in shunt regulator configuration |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards |
| Hard breakdown knee | Sharp, low-noise transition into regulation at low currents (0.5–5 mA), improving stability in low-power references |
| Low dynamic impedance | 60 Ω typical at 5 mA - reduces output voltage variation under changing load conditions |
| Very low leakage | 0.1 μA max at 70 % of VZ - critical for maintaining accuracy in high-impedance feedback networks |
| Small-footprint SOD323 | 1.8 mm × 1.35 mm outline - enables high-density routing and compatibility with automated reflow processes |
Applications
| Automotive Sensor Biasing | Power Supply Feedback Reference |
|---|---|
|
Use Scenario: Providing stable bias voltage to analog sensors (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Zener diode operating as a shunt voltage reference in a high-impedance divider network. Use Value: Tight ±2 % VZ tolerance and +6.4 mV/K temperature coefficient allow predictable sensor excitation across −40 °C to +125 °C ambient. |
Use Scenario: Setting precise output voltage in isolated flyback or buck converter feedback loops using optocoupler-coupled error amplifiers. IC Role / Device Role / Timing Role: Shunt regulator establishing reference potential at the TL431 or similar error amplifier input. Use Value: 60 Ω differential resistance ensures minimal voltage shift under feedback current variations, improving output regulation accuracy. |
| Overvoltage Clamp Protection | Industrial Signal Conditioning |
|
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient surges in 12 V automotive subsystems. IC Role / Device Role / Timing Role: Passive clamp limiting voltage to 10.21 V peak during ESD or load-dump events. Use Value: 0.1 μA leakage at 7 V prevents signal distortion in high-Z analog inputs while enabling fast response to overvoltage. |
Use Scenario: Generating stable reference voltages for 4–20 mA transmitter circuits in process automation equipment. IC Role / Device Role / Timing Role: Precision Zener used in two-terminal shunt regulator configuration powering op-amp bias rails. Use Value: AEC-Q101 qualification and 150 °C Tj rating ensure long-term stability in sealed industrial enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10LT1G | 10 V nominal, ±5 % tolerance, 30 Ω rdif, SOT-23 package | Higher leakage (0.1 μA @ 7.6 V), wider tolerance - less suitable for precision feedback | Preferred where cost sensitivity outweighs regulation accuracy and board space allows larger SOT-23 footprint |
| MMSZ5240B | 10 V nominal, ±5 % tolerance, 17 Ω rdif, SOD-123 package | Lower rdif but higher leakage (0.1 μA @ 8 V), non-AEC-Q101 rated | Appropriate for commercial-grade power supplies where automotive qualification is not required |
Compared with BZX84-C10LT1G and MMSZ5240B, PDZ10B-QF offers tighter tolerance, AEC-Q101 compliance, and optimized low-current regulation behavior - making it the preferred choice for automotive voltage references demanding long-term stability and low-leakage performance.
Availability
PDZ10B-QF is available at Aetrix Electronics and suitable for automotive sensor biasing, power supply feedback reference, and overvoltage clamp protection requiring stable component supply and full traceability.
Supply support for PDZ10B-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 leading global semiconductor manufacturer specializing in high-performance, reliable discrete and logic devices, with core expertise in automotive-qualified components.
PDZ10B-QF belongs to the PDZ-B-Q series of AEC-Q101-qualified Zener diodes engineered specifically for precision voltage regulation in harsh-environment automotive and industrial power management systems.
FAQ
What is the maximum reverse voltage before breakdown for PDZ10B-QF?
The PDZ10B-QF exhibits a specified Zener voltage range of 9.77 V to 10.21 V at 5 mA test current. Breakdown begins sharply within this band; no distinct "maximum reverse voltage before breakdown" is defined - instead, the device enters controlled regulation at VZ min (9.77 V) and remains in regulation up to its absolute maximum reverse voltage limit of 7.0 V at which leakage is guaranteed ≤0.1 μA.
Can PDZ10B-QF be used in parallel for higher power handling?
No - PDZ10B-QF is not designed for parallel operation due to manufacturing variations in Zener voltage and dynamic impedance. Parallel connection risks current hogging, thermal runaway, and premature failure. For higher power, select a single higher-rated Zener or implement active regulation with external transistors.
Is the SOD323 package compatible with standard reflow profiles?
Yes - the SOD323 package is qualified for lead-free reflow soldering per JEDEC J-STD-020. Recommended profile includes peak temperature ≤260 °C, time above liquidus 60–150 s, and ramp rates compliant with IPC/JEDEC standards. Figure 9 in the datasheet provides exact solder land dimensions and paste stencil recommendations.
How does temperature affect the Zener voltage of PDZ10B-QF?
PDZ10B-QF has a positive temperature coefficient of +6.4 mV/K at 5 mA, meaning its Zener voltage increases by approximately 6.4 mV per degree Celsius rise in junction temperature. This behavior is stable and repeatable, enabling predictable compensation in temperature-critical reference designs.
PDZ10B-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:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 7 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
PDZ10B-QF FAQ
1.How can I place an order for PDZ10B-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ10B-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 PDZ10B-QF reliable?
The price and inventory of PDZ10B-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ10B-QF is usually 5 days.
3.What payment methods are accepted for PDZ10B-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ10B-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ10B-QF?
PDZ10B-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ10B-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 PDZ10B-QF?
For technical support, including PDZ10B-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ10B-QF requirements.
6.How does Aetrix verify that PDZ10B-QF is sourced from the original manufacturer or authorized distributors?
All PDZ10B-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 PDZ10B-QF meets industry standards.
7.What is the process for return or replacement of PDZ10B-QF?
All PDZ10B-QF units undergo pre-shipment inspection (PSI). If there is an issue with PDZ10B-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 PDZ10B-QF part is unused and in its original packaging.
Return procedure for PDZ10B-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ10B-QF Tags
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