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Nexperia USA Inc. PZU84-C24R
- Part No.:
- PZU84-C24R
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-C24R.pdf
- Description:
- DIODE ZENER 24V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,534
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Product details
Overview
PZU84-C24R from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 package, rated for 24 V nominal breakdown voltage (22.93–25.57 V), 120 Ω differential resistance at 5 mA, and 19 mV/K temperature coefficient; used for precision voltage reference and overvoltage protection in low-power analog supply rails.
For engineers reviewing the PZU84-C24R datasheet, PZU84-C24R pinout, PZU84-C24R application, or PZU84-C24R equivalent, this page delivers verified Zener parameters, validated SOT23 terminal mapping, real-world regulation use cases, and cross-compatible alternatives with documented electrical divergence.
Technical Context
This Zener operates in reverse-bias breakdown mode with hard knee characteristics optimized for stable reference generation at 5 mA test current; its 120 Ω dynamic impedance ensures minimal output voltage shift under load variation within its 250 mW continuous power limit.
The device features intentional leakage current elevation per AN90031 to improve switching speed and reduce noise in transient suppression roles; thermal resistance from junction to solder point is 330 K/W, enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.93 V to 25.57 V at IZ = 5 mA - defines regulated output range for reference or clamp circuits |
| Differential Resistance (rdif) | 120 Ω at IZ = 5 mA - determines output voltage stability against current changes |
| Temperature Coefficient (SZ) | +19 mV/K - quantifies VZ drift per degree Celsius rise in junction temperature |
| Reverse Current (IR) | ≤ 0.05 μA at VR = 19.2 V - ensures low standby leakage in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 250 mW on FR4 PCB with standard footprint - sets maximum continuous DC power handling |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 μs square wave - supports transient surge clamping without failure |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity protection diode |
Pinout & Package
SOT23 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch, 3-terminal configuration with cathode tab solder point.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; connects to lower-potential node in Zener regulation |
| 2 | Not Connected (n.c.) | Internally isolated; must remain unconnected in PCB layout to avoid parasitic coupling |
| 3 | Cathode (K) | Reverse-bias terminal; connects to regulated output node and provides thermal path via solder point |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical reference applications without trimming |
| Hard breakdown knee | Ensures sharp transition into regulation, minimizing ambiguity in threshold detection |
| Optimized leakage for fast switching | Reduces turn-off delay in transient suppressor configurations per AN90031 |
| Low 250 mW power rating | Supports space-constrained designs where thermal mass is limited |
| 1.0 pF diode capacitance at 1 MHz | Maintains high-frequency signal integrity in RF bias or decoupling roles |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Stabilizing 24 V rail for op-amp biasing or ADC reference in industrial sensor modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground. Use Value: Delivers 24 V ±5 % regulation with <120 Ω dynamic impedance, ensuring <24 mV output shift across 1–5 mA load variation. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced voltage spikes on 24 V fieldbus lines. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping line-to-ground during surge events. Use Value: Activates at 22.93 V and absorbs 40 W peak power for 100 μs, limiting pin voltage to safe levels before system reset. |
| Low-Power Bias Network | Signal Level Shifting |
|
Use Scenario: Generating precise bias voltages for JFET amplifiers in battery-powered audio preamps. IC Role / Device Role / Timing Role: Voltage reference element establishing gate-source offset in discrete analog stages. Use Value: Provides stable 24 V reference with +19 mV/K tempco, enabling predictable amplifier gain over −40 °C to +85 °C ambient. |
Use Scenario: Converting 3.3 V logic signals to 24 V interface levels for PLC input conditioning circuits. IC Role / Device Role / Timing Role: Clamping diode defining upper rail of level-shifter transfer function. Use Value: Sets 24 V ceiling with hard knee and low 1.0 pF capacitance, preserving edge integrity up to 10 MHz switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C24 | Same 24 V nominal, ±5 % tolerance, but 200 Ω rdif at 5 mA and +20 mV/K tempco | Higher dynamic impedance reduces regulation accuracy under varying load; identical SOT23 footprint | Select when cost sensitivity outweighs tight regulation; verify 200 Ω rdif meets system error budget |
| MMSZ5245B | 24 V nominal, ±5 %, but 300 Ω rdif, 100 nA IR at 19.2 V, and +19 mV/K tempco | Higher leakage limits use in ultra-low-power sleep modes; same thermal profile and power rating | Prefer where lower leakage is critical; confirm 300 Ω rdif acceptable for target regulation stability |
Compared with BZX84-C24 and MMSZ5245B, PZU84-C24R offers the lowest differential resistance (120 Ω) among SOT23 24 V Zeners, delivering superior voltage stability under load change while maintaining identical thermal and footprint compatibility.
Availability
PZU84-C24R is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable logic controller (PLC) input protection, and low-power analog reference design requiring stable component supply and long-term obsolescence management.
Supply support for PZU84-C24R 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 focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The PZU84 series belongs to Nexperia's general-purpose Zener regulator product line, engineered for robust voltage reference and transient suppression in cost-sensitive, space-constrained applications demanding stable breakdown behavior.
FAQ
What is the maximum continuous reverse current for PZU84-C24R before exceeding thermal limits?
The device supports up to 10.4 mA continuous reverse current at 24 V before reaching its 250 mW power dissipation limit on a standard FR4 PCB. This assumes ambient temperature ≤25 °C and no additional heatsinking; derating is required above 25 °C per the 500 K/W junction-to-ambient thermal resistance.
Does PZU84-C24R meet automotive AEC-Q200 requirements?
No. PZU84-C24R is not AEC-Q200 qualified. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products like this Zener are unsuitable for safety-critical or life-support systems; automotive use requires explicit qualification confirmation from Nexperia documentation.
How does the "C" suffix in PZU84-C24R affect its electrical behavior versus "B"-series variants?
The "C" suffix denotes the ±5 % tolerance series with very low dynamic impedance and low leakage, optimized for precision reference use. In contrast, "B"-series parts (e.g., PZU84-B24) feature tighter ±2 % tolerance but higher dynamic impedance and elevated leakage for improved switching performance-making "C" preferred for regulation, "B" for clamping.
Can Pin 2 (n.c.) be grounded or left floating in PCB layout?
Pin 2 must remain unconnected-neither grounded nor tied to any net-as it is internally isolated. Connecting it risks parasitic coupling, unintended current paths, or mechanical stress on the die bond wire; Nexperia's pinning diagram and package outline confirm its n.c. status with no internal connection.
PZU84-C24R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PZU84
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 19 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PZU84-C24R FAQ
1.How can I place an order for PZU84-C24R through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-C24R 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 PZU84-C24R reliable?
The price and inventory of PZU84-C24R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C24R is usually 5 days.
3.What payment methods are accepted for PZU84-C24R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C24R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-C24R?
PZU84-C24R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-C24R 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 PZU84-C24R?
For technical support, including PZU84-C24R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C24R requirements.
6.How does Aetrix verify that PZU84-C24R is sourced from the original manufacturer or authorized distributors?
All PZU84-C24R 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 PZU84-C24R meets industry standards.
7.What is the process for return or replacement of PZU84-C24R?
All PZU84-C24R units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C24R, 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 PZU84-C24R part is unused and in its original packaging.
Return procedure for PZU84-C24R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-C24R Tags
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