My Inquiry
My Account
Nexperia USA Inc. PDZ2.4B-QZ
- Part No.:
- PDZ2.4B-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ2.4B-QZ.pdf
- Description:
- DIODE ZENER 2.4V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,912
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDZ2.4B-QZ from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in automotive and industrial circuits, with a nominal Zener voltage of 2.43 V to 2.63 V at IZ = 5 mA, ±2 % tolerance, 400 mW total power dissipation, and qualified per AEC-Q101 for automotive use.
For engineers reviewing the PDZ2.4B-QZ datasheet, PDZ2.4B-QZ pinout, PDZ2.4B-QZ application, or PDZ2.4B-QZ equivalent, this device serves as a precision shunt regulator in bias networks, reference supplies, and overvoltage protection where compact SOD323 packaging, low leakage (<50 µA at VR = 1.0 V), and hard breakdown knee are critical.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across load variations, with differential resistance as low as 1000 Ω at IZ = 0.5 mA and 100 Ω at IZ = 5 mA. Its temperature coefficient is −1.6 mV/K at IZ = 5 mA, enabling predictable drift compensation in reference designs.
The device features a hard breakdown knee and low leakage current (≤50 µA at VR = 1.0 V), supporting reliable clamping in low-current sensing and feedback paths. Thermal resistance from junction to solder point is 130 K/W, allowing operation up to +150 °C junction temperature on standard FR4 PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.43 V to 2.63 V at IZ = 5 mA - defines precise regulation threshold for low-voltage reference rails |
| Tolerance | ±2 % - ensures tight voltage matching without post-production trimming |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - supports continuous regulation in space-constrained SMD layouts |
| Reverse Leakage (IR) | ≤50 µA at VR = 1.0 V - minimizes quiescent current in battery-powered monitoring circuits |
| Differential Resistance (rdif) | 100 Ω at IZ = 5 mA - delivers low impedance regulation for stable output under dynamic load |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - enables use as polarity-sensitive clamp or ESD protection element |
| Thermal Resistance (Rth(j-sp)) | 130 K/W - allows direct thermal coupling to PCB copper for passive cooling in automotive modules |
Pinout & Package
PDZ2.4B-QZ is housed in a SOD323 (SC-76) surface-mount plastic package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode indicated by a marking bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes bias path for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and infotainment systems requiring extended temperature and reliability compliance |
| Hard breakdown knee | Enables sharp, repeatable turn-on behavior essential for accurate voltage clamping in analog feedback loops |
| Low dynamic impedance at low current | 100 Ω at 5 mA supports stable regulation even in micro-power sensor biasing applications |
| SOD323 footprint compatibility | Standardized 0.6 mm pad pitch and 1.15 mm lead spacing simplifies PCB layout and reflow assembly |
| −1.6 mV/K temperature coefficient | Predictable negative drift allows complementary compensation in multi-diode reference strings |
Applications
| Automotive Sensor Biasing | Industrial Power Supply Reference |
|---|---|
Use Scenario: Providing stable bias voltage to Hall-effect sensors and analog front-ends in engine control units. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining 2.5 V node accuracy across −40 °C to +125 °C ambient. Use Value: Enables <1 % output error over temperature due to tight ±2 % tolerance and AEC-Q101 reliability validation. |
Use Scenario: Setting feedback threshold in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Precision Zener reference for optocoupler-based error amplification loop. Use Value: Delivers <100 ppm/°C effective stability via low rdif and controlled temperature coefficient. |
| USB Port Overvoltage Protection | IoT Node Voltage Clamping |
Use Scenario: Clamping transient surges on 3.3 V USB data lines during hot-plug events. IC Role / Device Role / Timing Role: Fast-response shunt limiter diverting >8 A non-repetitive peak current (IZSM = 8.0 A). Use Value: Prevents damage to USB transceivers with <300 ns response and hard-knee breakdown at 2.63 V max. |
Use Scenario: Protecting ADC input pins in battery-operated environmental monitors against ESD and supply spikes. IC Role / Device Role / Timing Role: Low-leakage (≤50 µA) clamp limiting input to 2.63 V while drawing negligible standby current. Use Value: Extends battery life by minimizing parasitic drain while maintaining ±2 % clamping accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V4 | Same 2.4 V nominal Zener, but ±5 % tolerance and 300 mW Ptot; no AEC-Q101 qualification | Acceptable for commercial-grade consumer electronics only; not rated for automotive thermal cycling | Select when cost sensitivity outweighs automotive qualification and tighter tolerance requirements |
| MMSZ4678 | 2.4 V nominal, ±5 % tolerance, 500 mW Ptot, SOD-123 package (larger footprint) | Higher power handling but incompatible SOD-123 land pattern; unsuitable for high-density automotive PCBs | Choose only if board layout permits larger package and higher surge current (IZSM = 12 A) is required |
Compared with BZX384-B2V4 and MMSZ4678, PDZ2.4B-QZ uniquely combines AEC-Q101 qualification, ±2 % tolerance, and SOD323 size-making it the sole option for space-constrained automotive voltage references demanding production-grade reliability.
Availability
PDZ2.4B-QZ is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial power supply reference, USB port overvoltage protection, and IoT node voltage clamping requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for PDZ2.4B-QZ 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The PDZ-B-Q series targets automotive and industrial voltage regulation needs, delivering AEC-Q101-compliant Zener diodes optimized for compact SMD integration, low leakage, and stable breakdown characteristics in harsh environments.
FAQ
What is the maximum reverse current (IZSM) rating for PDZ2.4B-QZ?
PDZ2.4B-QZ has a non-repetitive peak reverse current rating of 8.0 A at tp = 100 µs and Tamb = 25 °C, verified per IEC 60134 limiting values. This enables robust transient suppression in automotive power domains without derating for short-duration surges.
How does the temperature coefficient affect regulation accuracy over automotive temperature range?
With a typical temperature coefficient of −1.6 mV/K at IZ = 5 mA, PDZ2.4B-QZ exhibits predictable negative drift: from −40 °C to +125 °C, total VZ shift is approximately −263 mV, which is factored into system-level calibration for closed-loop reference designs.
Is PDZ2.4B-QZ compatible with standard reflow soldering profiles?
Yes-PDZ2.4B-QZ is qualified for lead-free reflow per J-STD-020, with a maximum peak temperature of 260 °C. Its SOD323 footprint matches IPC-7351B standard land patterns (0.6 mm pad width, 1.15 mm center-to-center spacing), ensuring compatibility with automated assembly lines.
Can PDZ2.4B-QZ be used in forward-bias applications?
Yes-its forward voltage is specified at 0.9 V (IF = 10 mA) and 1.1 V (IF = 100 mA), making it suitable for polarity detection, LED driver biasing, or low-drop rectification where low VF and small footprint are advantageous.
PDZ2.4B-QZ 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:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 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
PDZ2.4B-QZ FAQ
1.How can I place an order for PDZ2.4B-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ2.4B-QZ 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 PDZ2.4B-QZ reliable?
The price and inventory of PDZ2.4B-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ2.4B-QZ is usually 5 days.
3.What payment methods are accepted for PDZ2.4B-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ2.4B-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ2.4B-QZ?
PDZ2.4B-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ2.4B-QZ 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 PDZ2.4B-QZ?
For technical support, including PDZ2.4B-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ2.4B-QZ requirements.
6.How does Aetrix verify that PDZ2.4B-QZ is sourced from the original manufacturer or authorized distributors?
All PDZ2.4B-QZ 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 PDZ2.4B-QZ meets industry standards.
7.What is the process for return or replacement of PDZ2.4B-QZ?
All PDZ2.4B-QZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ2.4B-QZ, 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 PDZ2.4B-QZ part is unused and in its original packaging.
Return procedure for PDZ2.4B-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ2.4B-QZ Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
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.
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…
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…
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…
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 …
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…
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…
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…
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…
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…
