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

Nexperia USA Inc. PDZ7.5B-QF

Name: PDZ7.5B-QF
Brand: Nexperia USA Inc.
SKU: PDZ7.5B-QF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDZ7.5B-QF

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: PDZ7.5B-QF.pdf

Description:: DIODE ZENER 7.5V 400MW SOD323

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Product details

Overview

PDZ7.5B-QF from Nexperia is a single Zener diode designed for precision voltage regulation in low-power circuits, with a nominal Zener voltage of 7.5 V (min 7.28 V, max 7.60 V at I_Z = 5 mA), ±2 % tolerance, 60 Ω typical differential resistance, and 0.5 μA maximum reverse leakage at V_R = 6.0 V - used in automotive body control modules for ECU reference rail stabilization.

For engineers reviewing the PDZ7.5B-QF datasheet, PDZ7.5B-QF pinout, PDZ7.5B-QF application, or PDZ7.5B-QF equivalent, this device is selected for its AEC-Q101 qualification, low dynamic impedance at low currents, hard breakdown knee, and SOD323 package compatibility with high-density automotive PCB layouts.

Technical Context

This Zener diode operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across varying load currents by conducting reverse current above its specified breakdown threshold. Its design centers on tight voltage tolerance (±2 %), low temperature coefficient (+4.0 mV/K at I_Z = 5 mA), and minimal capacitance (170 pF at 1 MHz, V_R = 0 V).

Thermal performance is defined by R_th(j-sp) = 130 K/W (junction-to-solder point) and R_th(j-a) = 340 K/W (junction-to-ambient) on FR4 PCB, enabling reliable operation up to T_j = +150 °C. It sustains non-repetitive peak reverse current up to 3.5 A (t_p = 100 μs).

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	7.28 V to 7.60 V at I_Z = 5 mA - defines precise clamping level for 7.5 V reference rails
Differential Resistance r_dif	60 Ω typical - ensures minimal voltage shift under load current variation
Reverse Leakage I_R	≤ 0.5 μA at V_R = 6.0 V - guarantees negligible standby power loss in battery-critical systems
Power Dissipation P_tot	400 mW at T_amb ≤ 25 °C - supports continuous regulation in compact SMD footprints
Temperature Coefficient S_Z	+4.0 mV/K at I_Z = 5 mA - enables predictable drift compensation in automotive thermal environments
Capacitance C_d	170 pF at f = 1 MHz, V_R = 0 V - limits high-frequency noise coupling in signal conditioning paths
Forward Voltage V_F	0.9 V at I_F = 10 mA - confirms low-loss forward conduction during transient overvoltage events

Pinout & Package

PDZ7.5B-QF is housed in a SOD323 (SC-76) surface-mount plastic package - 2.3 mm × 1.35 mm × 0.95 mm footprint with gull-wing leads, optimized for reflow soldering per IPC-7095 guidelines.

Pin/Terminal	Circuit Role	Design Meaning
1 (Marked side)	Cathode (K)	Connected to regulated output node; marking bar identifies polarity for automated optical inspection (AOI)
2	Anode (A)	Connected to ground or lower-potential reference; completes reverse-bias path for Zener conduction

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control, lighting, and infotainment subsystems
Hard breakdown knee	Sharp, well-defined Zener transition minimizes regulation uncertainty near V_Z
Very low leakage current	≤ 0.5 μA at 80 % of V_Z - preserves battery life in always-on vehicle networks
Low dynamic impedance	60 Ω typical at 5 mA - maintains < ±10 mV output deviation across ±1 mA load swings
Small SOD323 footprint	0.95 mm height enables placement beneath connectors or in tight board cavities

Applications

Automotive Body Control Unit (BCU)

Industrial Sensor Signal Conditioning

Use Scenario: Stabilizing 7.5 V reference for LIN transceiver biasing and microcontroller ADC reference in door module ECUs.

IC Role / Device Role / Timing Role: Shunt voltage regulator providing low-noise, thermally stable reference independent of supply rail fluctuations.

Use Value: Enables consistent 10-bit ADC accuracy (±0.5 LSB) across −40 °C to +125 °C ambient range.

Use Scenario: Clamping and regulating excitation voltage for 4–20 mA current-loop pressure sensors in factory automation PLC I/O modules.

IC Role / Device Role / Timing Role: Precision Zener reference establishing fixed sensor bridge bias, rejecting common-mode supply ripple.

Use Value: Reduces sensor output error from ±0.8 % to ±0.15 % full-scale due to stable 7.5 V reference.

USB-C Power Delivery Monitor

Smart Meter Voltage Reference

Use Scenario: Providing regulated bias to voltage dividers monitoring VBUS in USB-C PD sink controllers during variable input (5–20 V).

IC Role / Device Role / Timing Role: Low-capacitance Zener clamp ensuring accurate voltage sampling without signal integrity degradation.

Use Value: Limits measurement uncertainty to ±0.3 % despite 100 kHz switching noise on VBUS line.

Use Scenario: Generating stable 7.5 V reference for metrology-grade energy measurement ICs in Class 0.2 smart electricity meters.

IC Role / Device Role / Timing Role: Primary shunt regulator for analog front-end (AFE) reference chain, isolated from mains-coupled supply ripple.

Use Value: Maintains long-term reference drift < 20 ppm/°C, meeting IEC 62053-22 accuracy requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C7V5	Same SOD323 package; ±5 % tolerance (vs. ±2 %); 80 Ω r_dif; not AEC-Q101 qualified	Limited to industrial/commercial use; unsuitable for automotive BCU or safety-critical nodes	Select when cost sensitivity outweighs precision and automotive qualification requirements
MMSZ5235B	SOD-123 package (larger footprint); ±5 % tolerance; 30 Ω r_dif; AEC-Q101 qualified	Compatible with legacy PCB layouts using SOD-123; higher power handling (500 mW) but lower density	Choose for designs requiring higher surge immunity or existing SOD-123 land patterns

Compared with PDZ7.5B-QF, BZX84-C7V5 trades precision and automotive compliance for lower cost, while MMSZ5235B offers better surge robustness in a larger package - making PDZ7.5B-QF optimal for space-constrained, AEC-Q101–mandated 7.5 V reference designs.

Availability

PDZ7.5B-QF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power monitoring, and smart meter reference circuits requiring stable component supply with guaranteed long-term continuity.

Supply support for PDZ7.5B-QF 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 leading global semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume production of discrete, logic, and MOSFET devices with emphasis on automotive and industrial reliability.

PDZ7.5B-QF belongs to the PDZ-B-Q series - engineered specifically for AEC-Q101–compliant voltage regulation in space-constrained automotive modules where precision, low leakage, and thermal stability are critical.

FAQ

What is the maximum continuous reverse current rating for PDZ7.5B-QF?

The PDZ7.5B-QF has no specified continuous reverse current rating; it is rated for continuous power dissipation of 400 mW at T_amb ≤ 25 °C. At V_Z ≈ 7.5 V, this corresponds to ~53 mA average Zener current. Derating is required above 25 °C per the published power derating curve (Fig. 1).

Does PDZ7.5B-QF support wave soldering?

Yes - Nexperia provides a dedicated wave soldering footprint (Fig. 10) for SOD323, specifying 1.2 mm × 2.75 mm solder lands with preferred transport direction alignment. Thermal profile must limit peak temperature to ≤ 260 °C and dwell time to < 5 seconds to avoid package damage.

How does the +4.0 mV/K temperature coefficient affect regulation accuracy over temperature?

At I_Z = 5 mA, a +4.0 mV/K coefficient means V_Z increases by 4 mV per Kelvin rise. Over a −40 °C to +125 °C junction range (ΔT = 165 K), total drift is +660 mV - from 7.28 V to ~7.94 V. This is factored into system-level reference tolerance budgets for automotive applications.

Can PDZ7.5B-QF be used in parallel for higher power handling?

No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same batch, minor V_Z mismatches cause current hogging. Parallel operation is not recommended; instead, select higher-power alternatives like PZTA44 or use external current-sharing resistors with careful thermal coupling.

PDZ7.5B-QF Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: PDZ-B-Q

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 7.5 V

Tolerance:: ±2%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 10 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 4 V

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

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

PDZ7.5B-QF FAQ

1.How can I place an order for PDZ7.5B-QF through Aetrix?

Please submit a Request for Quotation (RFQ) for PDZ7.5B-QF 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 PDZ7.5B-QF reliable?

The price and inventory of PDZ7.5B-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ7.5B-QF is usually 5 days.

3.What payment methods are accepted for PDZ7.5B-QF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ7.5B-QF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDZ7.5B-QF?

PDZ7.5B-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDZ7.5B-QF 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 PDZ7.5B-QF?

For technical support, including PDZ7.5B-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ7.5B-QF requirements.

6.How does Aetrix verify that PDZ7.5B-QF is sourced from the original manufacturer or authorized distributors?

All PDZ7.5B-QF 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 PDZ7.5B-QF meets industry standards.

7.What is the process for return or replacement of PDZ7.5B-QF?

All PDZ7.5B-QF units undergo pre-shipment inspection (PSI). If there is an issue with PDZ7.5B-QF, 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 PDZ7.5B-QF part is unused and in its original packaging.

Return procedure for PDZ7.5B-QF:

1.Submit a request within 90 days.

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

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