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Nexperia USA Inc. PDZ5.6BZ
- Part No.:
- PDZ5.6BZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ5.6BZ.pdf
- Description:
- DIODE ZENER 5.6V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:23,815
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Product details
Overview
PDZ5.6BZ from Nexperia is a single low-power Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation at 5.6 V nominal working voltage with ±2 % tolerance, 100 Ω max differential resistance at IZ = 5 mA, and 1 μA max reverse current at VR = 4.5 V - deployed in power supply feedback loops, reference voltage generation, and overvoltage clamping circuits.
For engineers reviewing the PDZ5.6BZ datasheet, PDZ5.6BZ pinout, PDZ5.6BZ application, or PDZ5.6BZ equivalent, this device supports stable 5.6 V regulation under low-current conditions (IZ = 0.5–5 mA), features hard breakdown knee and low leakage, and is optimized for space-constrained SMT designs requiring tight voltage accuracy and thermal stability up to +150 °C junction temperature.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal Zener voltage of 5.6 V at 5 mA test current, exhibiting a positive temperature coefficient of +1.9 mV/K - enabling predictable drift compensation in bias networks. Its 100 Ω typical dynamic impedance ensures minimal output voltage variation across load current changes.
The device uses planar epitaxial construction for stable parametric performance, with thermal resistance from junction to solder point rated at 130 K/W and junction-to-ambient at 340 K/W on FR4 PCB - defining its derating behavior above 25 °C ambient per Figure 1 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.48 V to 5.73 V at IZ = 5 mA - defines precise regulation window for 5.6 V nominal systems |
| Differential Resistance rdif | 100 Ω max at IZ = 5 mA - ensures <10 mV output shift per 1 mA current change in regulation path |
| Reverse Current IR | 1 μA max at VR = 4.5 V - enables low-power standby operation without significant quiescent loss |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - supports use as polarity-sensitive clamp or protection diode in dual-role layouts |
| Power Dissipation Ptot | 400 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance Rth(j-sp) | 130 K/W - determines junction temperature rise above solder point under steady-state bias |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 2-terminal, ultra-compact footprint (1.35 × 0.8 mm body, 0.45 mm height), cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition enables clean voltage clamping without soft saturation effects |
| Low leakage current | ≤1 μA at 4.5 V reverse bias minimizes parasitic loading in high-impedance reference nodes |
| Small SMD package | SOD323 footprint saves >60 % board area vs. DO-35 through-hole equivalents |
| ±2 % voltage tolerance | Reduces need for post-production trimming in fixed-voltage regulator designs |
| Positive tempco (+1.9 mV/K) | Compensates negative tempcos of other components (e.g., BJTs) in bandgap-like references |
Applications
| Power Supply Feedback | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated flyback or buck converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener reference element setting error amplifier input threshold. Use Value: 5.6 V nominal output with <±2 % tolerance ensures consistent trip point across temperature and line variations. |
Use Scenario: Generating clean reset signal for MCU startup when main supply crosses 5.6 V threshold. IC Role / Device Role / Timing Role: Voltage threshold detector enabling reliable power-on reset assertion. Use Value: Hard breakdown knee and low leakage prevent false resets during slow-rising supply ramps. |
| Overvoltage Clamp | Reference Voltage Source |
|
Use Scenario: Protecting analog front-end inputs from transient overvoltage events exceeding 5.6 V. IC Role / Device Role / Timing Role: Shunt clamping device diverting excess current to ground during surge. Use Value: 400 mW power rating supports short-duration transients without thermal runaway. |
Use Scenario: Providing stable 5.6 V reference for ADC voltage dividers or sensor excitation circuits. IC Role / Device Role / Timing Role: Precision voltage source with minimal drift in low-current bias networks. Use Value: +1.9 mV/K tempco allows predictable compensation in multi-component reference chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C5V6 | Same 5.6 V nominal, ±5 % tolerance, 500 mW Ptot, SOD-523 package | Higher power rating but looser tolerance; less suitable for precision feedback | Select when higher surge energy handling is required and ±5 % regulation is acceptable |
| MMSZ5232BS | 5.6 V nominal, ±5 % tolerance, 350 mW Ptot, SOD-123 package | Larger footprint, higher rdif (~120 Ω), no guaranteed hard knee | Choose only if SOD-123 is mandated by legacy layout or procurement constraints |
Compared with BZX584-C5V6 and MMSZ5232BS, PDZ5.6BZ delivers tighter voltage tolerance (±2 %), lower dynamic impedance (100 Ω), and superior knee sharpness - making it optimal for precision regulation where accuracy and stability outweigh raw power handling.
Availability
PDZ5.6BZ is available at Aetrix Electronics and suitable for power supply feedback, microcontroller reset circuits, overvoltage clamping, and reference voltage source applications requiring stable component supply and full traceability.
Supply support for PDZ5.6BZ 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 expert delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and robustness for high-volume electronics.
PDZ5.6BZ belongs to the PDZ-B series of low-power Zener diodes engineered specifically for compact, high-accuracy voltage regulation in consumer, industrial, and computing power management systems.
FAQ
What is the maximum reverse current for PDZ5.6BZ at 4.5 V?
The maximum reverse current (IR) is 1 μA at VR = 4.5 V and Tj = 25 °C, as specified in Table 8 of the datasheet. This low leakage ensures minimal loading on high-impedance reference nodes and supports accurate regulation in battery-powered or low-quiescent-current designs.
Can PDZ5.6BZ be used in place of a 5.1 V Zener diode?
No - PDZ5.6BZ is rated for 5.6 V nominal Zener voltage (5.48–5.73 V range at 5 mA), not 5.1 V. Substituting it for a 5.1 V part would raise the regulation threshold by ~0.5 V, potentially causing overvoltage in feedback or reset circuits calibrated for 5.1 V operation.
What is the thermal resistance from junction to ambient for PDZ5.6BZ?
The junction-to-ambient thermal resistance (Rth(j-a)) is 340 K/W when mounted on a standard FR4 PCB with single-sided copper, tin-plated, and standard SOD323 footprint - per Table 6. This value governs temperature rise under continuous DC bias and must be applied in derating calculations above 25 °C ambient.
Does PDZ5.6BZ have a cathode marking?
Yes - the cathode (pin 1) is identified by a visible marking bar on the top surface of the SOD323 package, as shown in Figure 8 and confirmed in Table 2 (Pinning information). This marking aligns with industry-standard polarity identification for surface-mount Zener diodes.
PDZ5.6BZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ5.6BZ FAQ
1.How can I place an order for PDZ5.6BZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ5.6BZ 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 PDZ5.6BZ reliable?
The price and inventory of PDZ5.6BZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ5.6BZ is usually 5 days.
3.What payment methods are accepted for PDZ5.6BZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ5.6BZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ5.6BZ?
PDZ5.6BZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ5.6BZ 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 PDZ5.6BZ?
For technical support, including PDZ5.6BZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ5.6BZ requirements.
6.How does Aetrix verify that PDZ5.6BZ is sourced from the original manufacturer or authorized distributors?
All PDZ5.6BZ 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 PDZ5.6BZ meets industry standards.
7.What is the process for return or replacement of PDZ5.6BZ?
All PDZ5.6BZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ5.6BZ, 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 PDZ5.6BZ part is unused and in its original packaging.
Return procedure for PDZ5.6BZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ5.6BZ Tags
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