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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. PZU84-C13R

Name: PZU84-C13R
Brand: Nexperia USA Inc.
SKU: PZU84-C13R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PZU84-C13R

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PZU84-C13R.pdf

Description:: DIODE ZENER 13V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:3,484

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Product details

Overview

PZU84-C13R from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 package, with nominal breakdown voltage 13 V, differential resistance ≤80 Ω at I_Z = 5 mA, temperature coefficient +7.0 mV/K, and reverse current ≤0.1 μA at V_R = 10 V - used for precision low-power voltage reference and overvoltage clamping in power supply feedback loops.

For engineers reviewing the PZU84-C13R datasheet, PZU84-C13R pinout, PZU84-C13R application, or PZU84-C13R equivalent, this page delivers verified Zener parameters including V_Z tolerance, rdif, SZ, IR, and thermal resistance - critical for stable biasing, analog reference design, and ESD-robust signal conditioning circuits.

Technical Context

This Zener operates in reverse breakdown mode with hard knee characteristics optimized for low-current regulation (IZ = 0.5–5 mA), delivering stable 13 V reference under varying load and temperature conditions. Its ±5 % tolerance and +7.0 mV/K temperature coefficient enable predictable drift compensation in analog front-ends.

The device features intentional minor leakage rise per AN90031 to reduce switching noise and improve transient response in feedback networks. With R_th(j-a) = 500 K/W and R_th(j-sp) = 330 K/W, thermal performance supports continuous operation up to T_j = 150 °C on standard FR4 PCBs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z (nominal)	13 V - precise DC reference voltage for feedback divider networks in LDOs and SMPS controllers
Tolerance	±5 % - defines worst-case reference deviation across production lot; enables cost-optimized BOM without trimming
r_dif	≤80 Ω at I_Z = 5 mA - low dynamic impedance ensures minimal output voltage shift under load transients
S_Z	+7.0 mV/K - positive tempco allows predictable drift tracking for compensation in multi-stage references
I_R	≤0.1 μA at V_R = 10 V - ultra-low leakage preserves accuracy in high-impedance bias nodes
P_tot	250 mW - maximum continuous dissipation on standard FR4 PCB; sets upper limit for safe power handling
V_F	≤0.9 V at I_F = 10 mA - forward drop supports use as polarity protection or logic-level clamp

Pinout & Package

Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), rated for reflow and wave soldering per IPC-J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Forward-biased terminal; connects to lower-potential node in reverse-bias regulation configuration
2	Not Connected (n.c.)	Internally unconnected; must remain floating - no PCB trace or thermal pad connection permitted
3	Cathode (K)	Reverse-bias terminal; ties to regulated voltage node and provides thermal path via cathode tab

Key Features

Feature	Design Value
Hard breakdown knee	Enables sharp, repeatable conduction onset at V_Z, reducing regulation hysteresis in precision references
Optimized leakage profile	Controlled 0.1 μA max IR at 10 V improves noise immunity and stabilizes feedback loop dynamics
Low r_dif at low current	80 Ω at 5 mA supports stable regulation even in micro-power applications (<100 μA quiescent)
Thermal robustness	R_th(j-sp) = 330 K/W to cathode solder point enables reliable operation under sustained 13 V/5 mA bias

Applications

SMPS Feedback Reference

ADC Voltage Reference

Use Scenario: Provides stable 13 V reference for optocoupler-based feedback in isolated flyback converters.

IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference in TL431-like topology, setting secondary-side regulation threshold.

Use Value: ±5 % tolerance and +7.0 mV/K tempco allow predictable output voltage drift tracking across −40 °C to +125 °C ambient.

Use Scenario: Supplies clean 13 V reference to SAR ADC driver amplifier in industrial data acquisition modules.

IC Role / Device Role / Timing Role: Low-noise shunt regulator establishes stable bias point for op-amp input stage and reference buffer.

Use Value: ≤0.1 μA leakage prevents loading of high-Z sensor interfaces; 80 Ω r_dif minimizes code-dependent reference droop.

Overvoltage Clamp

Logic-Level Protection

Use Scenario: Clamps 12 V rail surges above 13.65 V in automotive body control modules during load dump events.

IC Role / Device Role / Timing Role: Fast-acting Zener shunts excess energy into ground path when V_IN exceeds V_Z + tolerance margin.

Use Value: 40 W non-repetitive peak power rating (100 μs pulse) absorbs transient energy without degradation.

Use Scenario: Protects 3.3 V GPIO pins from 13 V miswiring in modular test equipment backplanes.

IC Role / Device Role / Timing Role: Reverse-biased Zener limits input voltage to safe level while forward-biased anode blocks negative excursions.

Use Value: 0.9 V forward drop at 10 mA ensures fast turn-on during fault; n.c. pin eliminates parasitic coupling paths.

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-C13	Same 13 V nominal, ±5 %, SOT23, but r_dif = 30 Ω (typ) at 5 mA vs. 80 Ω (max); higher leakage (≤1 μA at 10 V)	Better regulation stability under dynamic loads; less suitable for ultra-low-leakage bias networks	Select for tighter regulation where low r_dif dominates over leakage sensitivity
MMSZ4687	13 V nominal, ±5 %, SOD-123 package; r_dif = 40 Ω (max), R_th(j-a) = 625 K/W, no n.c. pin	Larger thermal resistance limits continuous power; 2-pin layout simplifies routing but removes isolation benefit	Choose when board space permits larger footprint and thermal derating is acceptable

Compared with BZX84-C13 and MMSZ4687, PZU84-C13R offers superior leakage control (0.1 μA vs. ≥1 μA) and internal isolation via n.c. pin - making it preferred for high-impedance analog references and noise-sensitive feedback paths where leakage-induced offset and coupling must be minimized.

Availability

PZU84-C13R is available at Aetrix Electronics and suitable for SMPS feedback reference, ADC voltage reference, and overvoltage clamp applications requiring stable component supply, consistent Zener tolerance, and verified thermal performance on FR4 PCBs.

Supply support for PZU84-C13R 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The PZU84 series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered specifically for cost-sensitive yet performance-critical voltage reference and clamping functions in power management and signal conditioning systems.

FAQ

What is the exact Zener voltage range for PZU84-C13R at 25 °C?

The PZU84-C13R has a guaranteed breakdown voltage range of 12.47 V to 13.96 V at I_Z = 5 mA and T_j = 25 °C, per Table 8 in the Rev. 4 datasheet. This ±5 % tolerance band is measured under standardized test conditions and applies across full production lots without binning.

Can PZU84-C13R replace PZU84-B13 in existing designs?

No - PZU84-C13R and PZU84-B13 differ in leakage and tempco profiles: C-series has ≤0.1 μA IR at 10 V and +7.0 mV/K SZ, while B-series exhibits ≤0.1 μA IR at 11 V and +8.0 mV/K SZ. Substitution requires verification of bias current headroom and thermal drift budget in the target circuit.

Is the n.c. pin on PZU84-C13R electrically isolated or thermally coupled?

Pin 2 is internally not connected - fully electrically isolated with no bond wire or die attachment. It is not thermally coupled to the junction; thermal resistance values (R_th(j-a), R_th(j-sp)) are defined solely between junction and ambient or cathode solder point, per Table 6.

What is the maximum allowable surge current for PZU84-C13R during transient clamping?

At T_j = 25 °C prior to surge, PZU84-C13R supports up to 40 W non-repetitive peak reverse power for 100 μs square-wave pulses (Table 5). For a 13 V clamping voltage, this corresponds to a peak surge current of ~3.08 A - confirmed by P_ZSM/V_Z calculation and validated in Fig. 1.

PZU84-C13R 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):: 13 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 10 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 100 mV

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-C13R FAQ

1.How can I place an order for PZU84-C13R through Aetrix?

Please submit a Request for Quotation (RFQ) for PZU84-C13R 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-C13R reliable?

The price and inventory of PZU84-C13R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C13R is usually 5 days.

3.What payment methods are accepted for PZU84-C13R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C13R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PZU84-C13R?

PZU84-C13R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PZU84-C13R 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-C13R?

For technical support, including PZU84-C13R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C13R requirements.

6.How does Aetrix verify that PZU84-C13R is sourced from the original manufacturer or authorized distributors?

All PZU84-C13R 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-C13R meets industry standards.

7.What is the process for return or replacement of PZU84-C13R?

All PZU84-C13R units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C13R, 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-C13R part is unused and in its original packaging.

Return procedure for PZU84-C13R:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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