Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. PDZ2.7BZ

Name: PDZ2.7BZ
Brand: Nexperia USA Inc.
SKU: PDZ2.7BZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: PDZ2.7BZ

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: PDZ2.7BZ.pdf

Description:: DIODE ZENER 2.7V 400MW SOD323

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:29,865

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

PDZ2.7BZ from Nexperia is a single low-power Zener diode designed for precision voltage regulation in space-constrained SMD applications, with a nominal Zener voltage of 2.7 V (2.69–2.91 V at I_Z = 5 mA), ±2 % tolerance, 400 mW total power dissipation, and 20 Ω maximum differential resistance at 5 mA - deployed in general-purpose power rail clamping and reference circuits.

For engineers reviewing the PDZ2.7BZ datasheet, PDZ2.7BZ pinout, PDZ2.7BZ application, or PDZ2.7BZ equivalent, this device is selected for low-voltage stabilization where tight voltage tolerance, low leakage (<20 µA at V_R = 2.0 V), hard breakdown knee, and SOD323 footprint compatibility are critical.

Technical Context

This Zener operates as a two-terminal voltage reference in reverse-biased mode, delivering stable regulation at 2.7 V with temperature coefficient of −2.0 mV/K at 5 mA. Its low dynamic impedance (≤20 Ω) ensures minimal output voltage variation under load transients.

The device uses silicon planar technology in an ultra-compact SOD323 package, optimized for surface-mount assembly on FR4 PCBs with standard reflow footprints. Thermal resistance from junction to ambient is 340 K/W, limiting continuous operation to ≤25 °C ambient at full 400 mW unless derated.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.69–2.91 V at I_Z = 5 mA - defines precise clamping threshold for 2.7 V rails
Differential Resistance (r_dif)	≤20 Ω at I_Z = 5 mA - ensures <10 mV output shift per 0.2 mA current change
Reverse Current (I_R)	≤20 µA at V_R = 2.0 V - enables low-quiescent monitoring in battery-backed circuits
Power Dissipation (P_tot)	400 mW at T_amb ≤ 25 °C - supports sustained regulation in compact layouts with minimal heatsinking
Forward Voltage (V_F)	0.9 V at I_F = 10 mA - allows use as polarity-sensitive clamp or ESD protection in forward bias
Thermal Resistance (R_th(j-a))	340 K/W on FR4 PCB - requires ambient derating above 25 °C to maintain safe junction temperature

Pinout & Package

PDZ2.7BZ is housed in a SOD323 (SC-76) plastic surface-mount package measuring 1.8 × 1.35 × 0.95 mm, with cathode indicated by a marking bar on the top surface.

Pin/Terminal	Circuit Role	Design Meaning
1 (Marked side)	Cathode (K)	Connected to regulated output node; reverse-bias anode-to-cathode voltage establishes Zener conduction
2	Anode (A)	Connected to ground or lower-potential rail; completes bias path for regulation or clamping function

Key Features

Feature	Design Value
Low-voltage Zener precision	2.7 V nominal with ±2 % tolerance - enables accurate 2.7 V reference without external trimming
Hard breakdown knee	Sharp, well-defined reverse conduction onset - improves regulation stability near knee current (0.5 mA)
Ultra-small SMD footprint	SOD323 package (1.8 × 1.35 mm) - fits high-density PCBs where 0402 or smaller passive placement is required
Low leakage at low reverse bias	≤20 µA at V_R = 2.0 V - minimizes standby current in always-on voltage monitor circuits
Robust surge capability	8.0 A non-repetitive peak reverse current (t_p = 100 µs) - withstands transient overvoltage events without degradation

Applications

USB Port Voltage Clamp

Microcontroller Reset Reference

Use Scenario: Clamping 3.3 V USB data line voltage during ESD events or hot-plug transients.

IC Role / Device Role / Timing Role: Two-terminal shunt regulator placed between D+ and ground to limit excursion to ≤2.91 V.

Use Value: Prevents damage to USB PHY inputs while maintaining signal integrity due to fast response and low capacitance (440 pF).

Use Scenario: Providing a stable 2.7 V reset threshold for an ARM Cortex-M0 microcontroller with internal brown-out detection.

IC Role / Device Role / Timing Role: Precision voltage reference feeding comparator input in discrete reset circuitry.

Use Value: Enables reliable power-on reset assertion at exactly 2.7 V with <±20 mV error across temperature and supply variance.

Low-Voltage Battery Monitor

Industrial Sensor Biasing

Use Scenario: Monitoring LiFePO₄ cell voltage (2.5–3.6 V range) in multi-cell battery packs.

IC Role / Device Role / Timing Role: Zener-based voltage divider element generating scaled feedback for ADC input.

Use Value: Delivers repeatable 2.7 V reference point with <0.5 % drift over −40 to +85 °C, enabling ±10 mV cell voltage resolution.

Use Scenario: Biasing the reference input of a 4–20 mA current-loop transmitter IC operating from 12 V supply.

IC Role / Device Role / Timing Role: Shunt regulator establishing stable 2.7 V local reference for DAC and op-amp circuitry.

Use Value: Maintains sensor output accuracy within ±0.1 % FS despite 12 V rail ripple up to 200 mVpp due to low r_dif and hard knee.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B2V7	Same 2.7 V nominal, but SOD323 package with ±5 % tolerance and higher r_dif (≤35 Ω)	Acceptable for non-critical biasing where tighter tolerance is not required	Select when cost sensitivity outweighs regulation precision and thermal stability needs
MMSZ4678T1G	2.7 V nominal, SOD123 package (larger), ±5 % tolerance, 410 mW P_tot, r_dif ≤ 30 Ω	Preferred where manual rework or wave soldering is used due to larger pad geometry	Choose for legacy assembly lines using SOD123 tooling or where thermal margin >400 mW is needed

Compared with BZX384-B2V7 and MMSZ4678T1G, PDZ2.7BZ offers superior voltage accuracy (±2 % vs ±5 %), lower dynamic impedance (≤20 Ω vs ≥30 Ω), and optimized thermal performance in the smallest SOD323 footprint - making it ideal for high-precision, high-density 2.7 V regulation where board space and stability are constrained.

Availability

PDZ2.7BZ is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset circuits, battery voltage monitoring, and industrial sensor biasing requiring stable component supply and consistent parametric performance across production lots.

Supply support for PDZ2.7BZ 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 logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.

PDZ2.7BZ belongs to the PDZ-B series of low-power Zener diodes engineered specifically for precision voltage regulation and clamping in consumer, computing, and industrial SMD designs where small size and tight tolerance are essential.

FAQ

What is the maximum reverse current the PDZ2.7BZ can handle in surge conditions?

The PDZ2.7BZ supports a non-repetitive peak reverse current (I_ZSM) of 8.0 A at t_p = 100 µs and T_amb = 25 °C, verified per IEC 60134 absolute maximum ratings. This rating applies only to short-duration transients; continuous reverse current must remain below the Zener test current (5 mA) to avoid thermal runaway.

Does the PDZ2.7BZ have a specified junction-to-solder-point thermal resistance?

Yes - R_th(j-sp) is 130 K/W in free air, measured from junction to solder point on an FR4 PCB with standard SOD323 footprint. This value enables accurate thermal modeling when the diode is mounted adjacent to heat-generating components or in thermally isolated zones.

Can PDZ2.7BZ be used in forward-bias applications such as LED driver current sensing?

Yes - its forward voltage is characterized at 0.9 V (typ.) at 10 mA and 1.1 V at 100 mA, with continuous forward current rated to 200 mA. It functions reliably as a low-drop voltage reference or current-sense element in forward conduction, provided power dissipation remains within 400 mW limits.

How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?

At I_Z = 5 mA, PDZ2.7BZ has a temperature coefficient (S_Z) of −2.0 mV/K. Over a 165 °C range, this yields a worst-case drift of ±330 mV - however, actual deviation is nonlinear and typically <±150 mV across industrial temperature range due to curvature compensation in the Zener structure.

PDZ2.7BZ 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):: 2.7 V

Tolerance:: ±2%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 1000 Ohms

Current - Reverse Leakage @ Vr:: 20 µA @ 1 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

PDZ2.7BZ FAQ

1.How can I place an order for PDZ2.7BZ through Aetrix?

Please submit a Request for Quotation (RFQ) for PDZ2.7BZ 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 PDZ2.7BZ reliable?

The price and inventory of PDZ2.7BZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ2.7BZ is usually 5 days.

3.What payment methods are accepted for PDZ2.7BZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ2.7BZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDZ2.7BZ?

PDZ2.7BZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDZ2.7BZ 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 PDZ2.7BZ?

For technical support, including PDZ2.7BZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ2.7BZ requirements.

6.How does Aetrix verify that PDZ2.7BZ is sourced from the original manufacturer or authorized distributors?

All PDZ2.7BZ 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 PDZ2.7BZ meets industry standards.

7.What is the process for return or replacement of PDZ2.7BZ?

All PDZ2.7BZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ2.7BZ, 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 PDZ2.7BZ part is unused and in its original packaging.

Return procedure for PDZ2.7BZ:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…