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

Nexperia USA Inc. PZU84-C2V7-QR

Name: PZU84-C2V7-QR
Brand: Nexperia USA Inc.
SKU: PZU84-C2V7-QR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PZU84-C2V7-QR

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: PZU84-C2V7-QR.pdf

Description:: DIODE ZENER 2.7V 250MW TO236AB

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Inventory:8,498

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Product details

Overview

PZU84-C2V7-QR from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 package, rated for 2.5 V to 2.9 V nominal breakdown at 5 mA, with 1000 Ω differential resistance and 440 pF capacitance at 1 MHz - used for precision voltage reference and overvoltage clamping in automotive power rail monitoring circuits.

For engineers reviewing the PZU84-C2V7-QR datasheet, PZU84-C2V7-QR pinout, PZU84-C2V7-QR application, or PZU84-C2V7-QR equivalent, key selection criteria include AEC-Q101 qualification, low leakage (≤1.0 μA at VR = 2.5 V), hard breakdown knee, and thermal resistance of 330 K/W junction-to-solder-point - critical for under-hood ECU voltage stabilization.

Technical Context

This Zener diode operates in reverse-biased breakdown mode with tightly controlled V_Z tolerance (±2 %) and exhibits a hard breakdown knee characteristic, enabling stable regulation at low currents (IZ = 0.5 mA to 5 mA). Its differential resistance remains ≤1000 Ω across the specified test range, supporting consistent voltage reference accuracy.

Designed per AEC-Q101, it delivers automotive-grade reliability with T_j up to 150 °C and ambient operating range from −55 °C to +150 °C. The SOT23 package features a not-connected terminal (Pin 2), minimizing parasitic coupling in noise-sensitive analog sensing paths.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z @ I_Z = 5 mA	2.50 V to 2.90 V - defines precise clamping threshold for 2.7 V nominal rail protection
r_dif	≤1000 Ω - ensures minimal voltage shift under load variation in feedback networks
I_R @ V_R = 2.5 V	≤1.0 μA - enables ultra-low standby current in always-on automotive modules
C_d @ f = 1 MHz	440 pF - limits high-frequency noise coupling in ADC reference or sensor bias circuits
P_tot	250 mW - supports continuous regulation on FR4 PCB with standard copper footprint
T_j max	150 °C - sustains operation in engine control unit (ECU) under-hood environments
AEC-Q101 qualified	Yes - certified for automotive power management and signal conditioning applications

Pinout & Package

SOT23 plastic surface-mounted package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch); thermally optimized for reflow soldering with cathode tab as primary heat path.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode (A)	Forward conduction terminal; connected to lower-potential node in reverse-bias regulation
2	Not Connected (n.c.)	Electrically isolated; eliminates stray capacitance and simplifies PCB layout routing
3	Cathode (K)	Breakdown terminal; serves as thermal sink via solder point (R_th(j-sp) = 330 K/W)

Key Features

Feature	Design Value
Hard breakdown knee	Enables sharp, repeatable turn-on for accurate overvoltage detection without hysteresis
Low leakage current	≤1.0 μA at VR = 2.5 V - preserves battery life in always-on vehicle subsystems
±2 % V_Z tolerance	Reduces need for post-assembly calibration in safety-critical voltage monitoring circuits
AEC-Q101 qualification	Validated for automotive powertrain and body electronics per stress-test requirements
Optimized thermal path	R_th(j-sp) = 330 K/W - allows sustained 250 mW dissipation with minimal junction rise

Applications

Engine Control Unit (ECU) Voltage Monitoring

Automotive Infotainment Power Rail Clamping

Use Scenario: Real-time monitoring of 2.7 V microcontroller core supply in engine control module.

IC Role / Device Role / Timing Role: Zener clamp providing fail-safe overvoltage cutoff before LDO or MCU damage occurs.

Use Value: Hard breakdown knee and ±2 % tolerance ensure deterministic trip point within 2.5–2.9 V window, preventing false resets during transients.

Use Scenario: Protection of audio codec reference voltage against load dump-induced spikes in head unit.

IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy while maintaining stable 2.7 V bias for analog front-end.

Use Value: 440 pF capacitance minimizes RF coupling into sensitive audio paths; low leakage avoids DC offset drift.

ADAS Camera Module Reference Stabilization

Body Control Module (BCM) Wake-Up Circuit

Use Scenario: Providing stable 2.7 V reference for image sensor ADC in rear-view camera system.

IC Role / Device Role / Timing Role: Precision voltage reference source with minimal temperature coefficient drift (−3.5 to 0.0 mV/K).

Use Value: Tight V_Z tolerance and low r_dif maintain reference accuracy across −40 °C to +105 °C operating range.

Use Scenario: Enabling low-power wake-up detection on 2.7 V CAN transceiver standby rail.

IC Role / Device Role / Timing Role: Low-leakage shunt element defining threshold for wake-up comparator input.

Use Value: ≤1.0 μA leakage ensures nanoamp-level quiescent current compliance required for ISO 16750-2 Class D sleep mode.

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-C2V7,115	±5 % tolerance, higher r_dif (1000 Ω typ. at 5 mA), no AEC-Q101 qualification	Acceptable for non-automotive consumer power rails; unsuitable for ASIL-B systems	Select only for cost-sensitive industrial designs where ±5 % V_Z and non-automotive qualification are acceptable
MMSZ4678T1G	±5 % tolerance, 2.6 V to 3.0 V range, 225 mW P_tot, no AEC-Q101	Limited thermal margin in high-ambient automotive zones; lacks hard knee performance	Prefer for space-constrained portable electronics, not for under-hood deployment

Compared with BZX84-C2V7,115 and MMSZ4678T1G, PZU84-C2V7-QR provides tighter tolerance, AEC-Q101 validation, and superior thermal resistance - making it the sole choice for automotive voltage reference integrity where failure modes must be rigorously controlled.

Availability

PZU84-C2V7-QR is available at Aetrix Electronics and suitable for automotive ECU voltage monitoring, ADAS camera reference stabilization, and BCM wake-up circuit design requiring stable component supply across extended temperature and lifecycle demands.

Supply support for PZU84-C2V7-QR 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 mobile markets.

PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for robust voltage reference and clamping in harsh automotive environments - emphasizing low leakage, hard breakdown, and thermal resilience.

FAQ

What is the maximum reverse current (I_R) specification for PZU84-C2V7-QR at 2.5 V?

The maximum reverse current is 1.0 μA at V_R = 2.5 V and T_j = 25 °C, measured per datasheet Table 8. This low leakage supports ultra-low-power wake-up functions in automotive modules and ensures minimal loading on precision reference nodes.

Does PZU84-C2V7-QR have a not-connected pin, and how does it affect PCB layout?

Yes, Pin 2 is explicitly marked "n.c." (not connected) in the pinning diagram. It must remain unconnected on the PCB to avoid unintended parasitic coupling; this simplifies routing and reduces noise susceptibility in high-impedance reference paths.

How does the thermal resistance R_th(j-sp) of 330 K/W impact practical power handling?

With R_th(j-sp) = 330 K/W and T_j(max) = 150 °C, the device can safely dissipate 250 mW when the solder point is held at ≤70 °C - achievable on standard FR4 with tin-plated copper, enabling full-rated operation in engine bay PCBs.

Is PZU84-C2V7-QR compatible with lead-free reflow profiles per J-STD-020?

Yes, the SOT23 package is qualified for standard lead-free reflow per J-STD-020, with peak temperature up to 260 °C. Figure 10 specifies the recommended reflow solder land pattern (0.6 mm × 0.7 mm pads), ensuring reliable joint formation without delamination.

PZU84-C2V7-QR Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: PZU84-Q

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 2.7 V

Tolerance:: ±7.41%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 100 Ohms

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

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PZU84-C2V7-QR FAQ

1.How can I place an order for PZU84-C2V7-QR through Aetrix?

Please submit a Request for Quotation (RFQ) for PZU84-C2V7-QR 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-C2V7-QR reliable?

The price and inventory of PZU84-C2V7-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-C2V7-QR is usually 5 days.

3.What payment methods are accepted for PZU84-C2V7-QR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-C2V7-QR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PZU84-C2V7-QR?

PZU84-C2V7-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PZU84-C2V7-QR 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-C2V7-QR?

For technical support, including PZU84-C2V7-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-C2V7-QR requirements.

6.How does Aetrix verify that PZU84-C2V7-QR is sourced from the original manufacturer or authorized distributors?

All PZU84-C2V7-QR 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-C2V7-QR meets industry standards.

7.What is the process for return or replacement of PZU84-C2V7-QR?

All PZU84-C2V7-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-C2V7-QR, 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-C2V7-QR part is unused and in its original packaging.

Return procedure for PZU84-C2V7-QR:

1.Submit a request within 90 days.

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

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