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Nexperia USA Inc. PDZ5.1B,115
- Part No.:
- PDZ5.1B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ5.1B,115.pdf
- Description:
- DIODE ZENER 5.1V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,348
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Product details
Overview
PDZ5.1B,115 from Nexperia is a single low-power Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation at 5.1 V nominal working voltage with ±2 % tolerance, 2 μA reverse leakage at VR = 1 V, 60 Ω typical dynamic impedance at IZ = 5 mA, and 400 mW total power dissipation - used in power supply feedback paths, reference voltage generation, and overvoltage clamping in consumer and industrial SMPS.
For engineers reviewing the PDZ5.1B,115 datasheet, PDZ5.1B,115 pinout, PDZ5.1B,115 application, or PDZ5.1B,115 equivalent, this device supports stable 5.1 V regulation under low-current conditions (IZ = 0.5–5 mA), features hard breakdown knee and low temperature coefficient (+0.3 mV/K), and serves as a compact, surface-mount alternative to through-hole Zeners in space-constrained PCB layouts.
Technical Context
The PDZ5.1B,115 operates as a two-terminal voltage reference diode with cathode-anode polarity, exhibiting sharp Zener breakdown at 4.96–5.20 V (IZ = 5 mA), low differential resistance (250 Ω max at IZ = 0.5 mA; 60 Ω typ at IZ = 5 mA), and minimal temperature drift (+0.3 mV/K typ). Its junction-to-ambient thermal resistance is 340 K/W on FR4 PCB.
It delivers forward conduction at VF ≤ 0.9 V (IF = 10 mA) and supports non-repetitive surge currents up to 5.5 A (tp = 100 μs), while maintaining reverse leakage IR ≤ 2 μA at VR = 1 V - enabling reliable operation in low-power biasing and transient suppression roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VZ) | 4.96–5.20 V at IZ = 5 mA - defines precise regulation point for feedback loops |
| Dynamic Impedance (rdif) | 60 Ω typical at IZ = 5 mA - ensures stable output voltage under load variation |
| Reverse Leakage (IR) | ≤ 2 μA at VR = 1 V - minimizes quiescent current in battery-powered circuits |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - sets maximum continuous operating power on standard FR4 PCB |
| Temperature Coefficient (SZ) | +0.3 mV/K at IZ = 5 mA - enables predictable voltage drift across operating temperature range |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - allows efficient anode-cathode conduction during forward bias |
| Junction-to-Ambient Rth | 340 K/W - determines thermal rise above ambient under steady-state power loading |
Pinout & Package
PDZ5.1B,115 uses the SOD323 (SC-76) surface-mount plastic package: 1.7 mm × 1.35 mm body, 0.45 mm height, cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; establishes reference polarity for breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on at nominal VZ without soft rolloff - critical for accurate voltage sensing |
| Very low leakage current | IR ≤ 2 μA at VR = 1 V - preserves battery life and avoids loading of high-impedance reference nodes |
| Low dynamic impedance | 60 Ω typical at 5 mA - maintains regulation accuracy despite input or load transients |
| SOD323 footprint compatibility | Standardized 0.95 mm × 1.65 mm reflow solder land pattern - ensures manufacturability on automated SMT lines |
| ±2 % voltage tolerance | Tight initial calibration - eliminates need for post-assembly trimming in cost-sensitive applications |
Applications
| SMPS Feedback Reference | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Provides stable 5.1 V reference for optocoupler-based feedback in isolated DC-DC converters. IC Role / Device Role / Timing Role: Zener diode acting as secondary-side voltage reference, setting regulation threshold for TL431 or similar shunt regulator. Use Value: Tight 4.96–5.20 V tolerance and low rdif ensure <±1 % output voltage stability across line/load/temperature variations. |
Use Scenario: Generates clean reset signal for 3.3 V or 5 V microcontrollers during power-up and brownout events. IC Role / Device Role / Timing Role: Clamps reset line to 5.1 V while allowing controlled discharge via RC network to define reset pulse width. Use Value: Hard breakdown knee and ≤2 μA leakage prevent false resets and reduce standby current in always-on systems. |
| IO Interface Protection | ADC Reference Stabilization |
|
Use Scenario: Limits voltage spikes on analog sensor inputs or digital IO lines exposed to ESD or inductive kickback. IC Role / Device Role / Timing Role: Shunt clamp placed between signal line and ground, conducting only when transient exceeds 5.1 V. Use Value: 5.5 A non-repetitive surge rating (tp = 100 μs) absorbs fast transients without degradation, preserving downstream IC integrity. |
Use Scenario: Supplies stable 5.1 V reference to external ADCs or DACs requiring higher accuracy than internal bandgap references. IC Role / Device Role / Timing Role: Low-noise Zener source feeding precision voltage divider or buffer amplifier for reference path. Use Value: +0.3 mV/K temperature coefficient and 60 Ω dynamic impedance minimize reference drift and noise coupling into conversion chain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C5V1 | Same 5.1 V nominal, ±5 % tolerance, 250 mW Ptot, SOD523 package | Lower power rating and looser tolerance - suitable only where regulation accuracy <±3 % is acceptable | Select when board space permits smaller SOD523 and thermal budget is constrained below 300 mW |
| MMSZ5231B | 5.1 V nominal, ±5 % tolerance, 500 mW Ptot, SOD123 package | Higher power handling but larger footprint and softer knee - less precise for low-current references | Choose when higher surge immunity or >400 mW continuous dissipation is required, accepting trade-off in regulation sharpness |
Compared with BZX584-C5V1 and MMSZ5231B, PDZ5.1B,115 offers superior voltage accuracy (±2 % vs. ±5 %), lower dynamic impedance (60 Ω vs. ≥100 Ω), and optimized low-current performance - making it preferred for precision feedback and low-power reference designs where SOD323 size is acceptable.
Availability
PDZ5.1B,115 is available at Aetrix Electronics and suitable for SMPS feedback reference, microcontroller reset circuit, and IO interface protection requiring stable component supply, tight voltage tolerance, and SOD323 footprint compatibility.
Supply support for PDZ5.1B,115 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and manufacturability.
The PDZ-B series targets general-purpose, low-power voltage regulation in space-constrained SMT applications - emphasizing tight tolerance, low leakage, and hard breakdown for cost-effective, high-yield production.
FAQ
What is the maximum reverse voltage before breakdown for PDZ5.1B,115?
The PDZ5.1B,115 exhibits Zener breakdown between 4.96 V and 5.20 V at test current IZ = 5 mA. Below 4.96 V, reverse current remains ≤2 μA at VR = 1 V; no defined "maximum non-breakdown voltage" is specified - operation is intended within the rated VZ window under controlled IZ.
Can PDZ5.1B,115 be used in place of a 5 V linear regulator?
No - PDZ5.1B,115 is a two-terminal passive Zener diode requiring external current limiting and providing no current regulation or load drive capability. It functions only as a voltage reference or clamp, not as a standalone 5 V power source like a 78L05 or LDO.
Is PDZ5.1B,115 automotive qualified?
No - PDZ5.1B,115 is not automotive qualified. The Nexperia datasheet explicitly states that unless otherwise indicated, PDZ-B series devices are non-automotive and not tested to AEC-Q101 or automotive reliability standards. Use in automotive applications requires customer validation and risk assumption.
What is the recommended PCB footprint for PDZ5.1B,115?
The official Nexperia reflow soldering footprint specifies 0.95 mm × 1.65 mm solder lands with 0.5 mm spacing between pads, 0.6 mm solder resist opening per pad, and 2.2 mm overall length - matching JEDEC SC-76/SOD323 mechanical outline and ensuring reliable reflow joint formation.
PDZ5.1B,115 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):
- 5.1 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1.5 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
PDZ5.1B,115 FAQ
1.How can I place an order for PDZ5.1B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ5.1B,115 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 PDZ5.1B,115 reliable?
The price and inventory of PDZ5.1B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ5.1B,115 is usually 5 days.
3.What payment methods are accepted for PDZ5.1B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ5.1B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ5.1B,115?
PDZ5.1B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ5.1B,115 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 PDZ5.1B,115?
For technical support, including PDZ5.1B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ5.1B,115 requirements.
6.How does Aetrix verify that PDZ5.1B,115 is sourced from the original manufacturer or authorized distributors?
All PDZ5.1B,115 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 PDZ5.1B,115 meets industry standards.
7.What is the process for return or replacement of PDZ5.1B,115?
All PDZ5.1B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ5.1B,115, 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 PDZ5.1B,115 part is unused and in its original packaging.
Return procedure for PDZ5.1B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ5.1B,115 Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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