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

Nexperia USA Inc. PZU15B1A,115

Name: PZU15B1A,115
Brand: Nexperia USA Inc.
SKU: PZU15B1A,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PZU15B1A,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: PZU15B1A,115.pdf

Description:: DIODE ZENER 15V 320MW SOD323

Quantity:: RFQ Add To RFQ list

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Inventory:9,755

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Product details

Overview

PZU15B1A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 15 V nominal working voltage, 320 mW total power dissipation at 25 °C ambient, and 40 W non-repetitive peak reverse power. It delivers low dynamic impedance (80 Ω max at I_Z = 5 mA), 15 nA reverse current at I_Z = 0.5 mA, and temperature coefficient of +2 mV/K - used for precision voltage reference and overvoltage clamping in low-power analog supply rails.

For engineers reviewing the PZU15B1A,115 datasheet, PZU15B1A,115 pinout, PZU15B1A,115 application, or PZU15B1A,115 equivalent, key selection criteria include Zener voltage tolerance (±2 %), differential resistance at low bias current, thermal resistance to solder point (255 K/W), and SC-76 footprint compatibility with high-density PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable DC reference voltage under varying load and temperature conditions. Its hard breakdown knee and intentional leakage optimization support fast transient response and reduced noise in feedback loops.

Designed for surface-mounted use on FR4 PCBs with single-sided copper, it relies on thermal conduction through cathode pad (R_th(j-sp) = 255 K/W) and exhibits positive temperature coefficient above 5.1 V - enabling predictable drift compensation in multi-diode references.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	14.30 V to 15.52 V at I_Z = 5 mA - defines regulated output voltage window under standard test conditions
Differential Resistance (r_dif)	≤ 80 Ω at I_Z = 5 mA - determines output impedance and regulation error under load variation
Reverse Current (I_R)	≤ 15 nA at V_R = 11.4 V - ensures minimal standby power loss in high-impedance bias networks
Temperature Coefficient (S_Z)	+2 mV/K - enables predictable voltage drift with junction temperature rise, useful for thermal compensation design
Total Power Dissipation (P_tot)	320 mW at T_amb ≤ 25 °C on standard FR4 - sets maximum continuous DC power handling without heatsinking
Non-repetitive Peak Reverse Power (P_ZSM)	40 W for t_p = 100 µs square wave - supports surge suppression in ESD or transient-limited protection circuits
Package	SOD323 (SC-76): 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch - enables 0603-class board space utilization

Pinout & Package

SOD323 (SC-76) plastic surface-mount package with cathode marked by bar; optimized for reflow and wave soldering per IPC-7095 guidelines.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; marking bar identifies this terminal; primary heat path to PCB copper
2	Anode	Connected to ground or lower-potential rail; completes reverse-bias path during regulation

Key Features

Feature	Design Value
±2 % Zener voltage tolerance (B1 series)	Enables tighter output voltage control than ±5 % variants, reducing need for post-regulation trimming
Low differential resistance (≤80 Ω @ 5 mA)	Minimizes regulation error under load changes, critical for stable feedback references in LDOs and ADCs
Optimized leakage for noise reduction	Intentional minor IR increase improves switching speed and suppresses broadband noise in sensing front-ends
Hard breakdown knee	Ensures sharp turn-on characteristic, improving accuracy in precision clamp and threshold-detection circuits
FR4-compatible thermal performance	R_th(j-sp) = 255 K/W allows direct thermal coupling to PCB copper, eliminating need for thermal vias in most applications

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Providing stable 15 V reference for op-amp biasing and DAC output scaling in industrial sensor signal chains.

IC Role / Device Role / Timing Role: Zener diode acts as two-terminal shunt voltage reference, absorbing excess current to hold node voltage within ±2 % tolerance.

Use Value: Enables 12-bit measurement accuracy by limiting reference drift to < ±30 mV over 0–70 °C ambient range.

Use Scenario: Protecting microcontroller I/O pins against 24 V field-side transients in PLC digital input modules.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp that conducts surge current when input exceeds 15.5 V, diverting energy away from sensitive logic.

Use Value: Limits clamped voltage to ≤15.52 V with <100 ns response, preventing latch-up in 3.3 V GPIO structures.

ADC Voltage Reference

Current Source Bias

Use Scenario: Generating precise 15 V reference for 16-bit SAR ADC reference buffer in medical instrumentation.

IC Role / Device Role / Timing Role: Low-noise Zener establishes clean reference potential independent of supply ripple or load variation.

Use Value: Achieves ENOB >15.2 bits by contributing <0.5 LSB of noise and maintaining <10 ppm/°C drift over operating range.

Use Scenario: Setting bias current for constant-current LED driver in automotive interior lighting control.

IC Role / Device Role / Timing Role: Shunt regulator establishes fixed voltage across current-setting resistor, defining LED drive current.

Use Value: Maintains ±1.5 % current stability across -40 to +105 °C due to matched temperature coefficient and low r_dif.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C15,215	±5 % tolerance, higher r_dif (100 Ω), same SOD323 package	Acceptable where ±5 % regulation suffices and cost sensitivity outweighs precision needs	Select for cost-driven consumer designs where 15 V reference stability >±3 % is acceptable
MMSZ5245B-7-F	±5 % tolerance, 500 mW P_tot, SOD-123 package (larger footprint)	Higher power handling but incompatible with ultra-dense SOD323 layouts	Choose only if thermal margin requires >320 mW dissipation and board space permits larger package

Compared with BZX84-C15,215 and MMSZ5245B-7-F, PZU15B1A,115 offers superior voltage accuracy and smaller footprint at moderate power - making it optimal for space-constrained, precision analog systems where ±2 % tolerance and low noise are mandatory.

Availability

PZU15B1A,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller (PLC) input protection, medical-grade ADC references, and automotive body electronics requiring stable component supply and traceable sourcing.

Supply support for PZU15B1A,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 focused on high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.

PZUxBA series belongs to Nexperia's general-purpose Zener regulator portfolio, designed specifically for precision voltage reference and clamping in space-constrained, low-power industrial and consumer electronics.

FAQ

What is the maximum continuous reverse current the PZU15B1A,115 can sustain at 25 °C ambient?

The device sustains up to 21 mA continuous reverse current at 25 °C ambient while staying within its 320 mW total power dissipation limit - calculated as P_tot/V_Z ≈ 320 mW / 15 V = 21.3 mA. Derating applies above 25 °C per R_th(j-a) = 390 K/W.

How does the +2 mV/K temperature coefficient affect long-term voltage stability?

A +2 mV/K coefficient means the Zener voltage increases by ~2 mV per Kelvin rise in junction temperature. Over a 100 K rise (e.g., from 25 °C to 125 °C), V_Z shifts +200 mV - approximately +1.3 % of nominal 15 V. This is predictable and usable in compensated reference designs.

Can PZU15B1A,115 be used in parallel for higher power handling?

No - Zener diodes exhibit negative temperature coefficient below ~5 V and positive above, but even within the same batch, slight V_Z mismatches cause current hogging. Parallel operation is not recommended; use a single higher-power device or active regulation instead.

Is the SOD323 package compatible with standard 0603 reflow profiles?

Yes - the SOD323 outline matches JEDEC MS-012 standards and fits standard 0603 land patterns (1.15 mm × 0.8 mm pads, 0.5 mm spacing). Reflow profile must respect peak temperature ≤260 °C and time above liquidus ≤60 s per J-STD-020.

PZU15B1A,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-76, SOD-323

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Zener (Nom) (Vz):: 15 V

Tolerance:: ±2%

Power - Max:: 320 mW

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 11 V

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 100 mA

Operating Temperature:: -55°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

PZU15B1A,115 FAQ

1.How can I place an order for PZU15B1A,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for PZU15B1A,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 PZU15B1A,115 reliable?

The price and inventory of PZU15B1A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU15B1A,115 is usually 5 days.

3.What payment methods are accepted for PZU15B1A,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU15B1A,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PZU15B1A,115?

PZU15B1A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PZU15B1A,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 PZU15B1A,115?

For technical support, including PZU15B1A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU15B1A,115 requirements.

6.How does Aetrix verify that PZU15B1A,115 is sourced from the original manufacturer or authorized distributors?

All PZU15B1A,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 PZU15B1A,115 meets industry standards.

7.What is the process for return or replacement of PZU15B1A,115?

All PZU15B1A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU15B1A,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 PZU15B1A,115 part is unused and in its original packaging.

Return procedure for PZU15B1A,115:

1.Submit a request within 90 days.

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

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