My Inquiry
My Account
Nexperia USA Inc. PDZ3.0B-QX
- Part No.:
- PDZ3.0B-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ3.0B-QX.pdf
- Description:
- DIODE ZENER 3V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:6,156
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDZ3.0B-QX from Nexperia is a single Zener diode designed for precision low-voltage regulation in space-constrained SMD applications, with a nominal Zener voltage of 3.0 V at 5 mA, ±2 % tolerance, 95 Ω maximum differential resistance at 5 mA, and qualified to AEC-Q101 for automotive use.
For engineers reviewing the PDZ3.0B-QX datasheet, PDZ3.0B-QX pinout, PDZ3.0B-QX application, or PDZ3.0B-QX equivalent, this device supports stable reference generation in power supply feedback paths, ESD-protected sensor biasing, and low-current voltage clamping where tight voltage accuracy and low leakage (<10 µA at VR = 2.4 V) are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a hard knee characteristic, enabling predictable clamping behavior at low currents (IZ ≥ 0.5 mA). Its temperature coefficient of −2.1 mV/K at 5 mA ensures stable regulation across automotive ambient ranges (−40 °C to +125 °C junction).
The SOD323 package delivers thermal resistance of 130 K/W (junction-to-solder point) and supports continuous power dissipation up to 400 mW at Tamb ≤ 25 °C on FR4 PCB - derating linearly above that temperature per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.85 V to 3.07 V at IZ = 5 mA - defines precise clamping threshold for 3.3 V rail protection or reference generation |
| Differential Resistance (rdif) | ≤95 Ω at IZ = 5 mA - ensures minimal voltage shift under load variation in feedback circuits |
| Reverse Current (IR) | ≤10 µA at VR = 2.4 V - enables low-power standby operation without excessive quiescent drain |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - supports bidirectional transient suppression when used with series resistor |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - sets maximum steady-state clamping energy before thermal derating applies |
| Thermal Resistance (Rth(j-sp)) | 130 K/W - determines junction temperature rise above solder point under DC stress |
Pinout & Package
PDZ3.0B-QX 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 | Cathode (K) | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114 |
| Low dynamic impedance | 95 Ω max at 5 mA enables stable regulation in low-current feedback loops (e.g., TL431 auxiliary references) |
| Hard breakdown knee | Sharp transition into conduction minimizes ambiguity in clamping onset - critical for overvoltage detection thresholds |
| Small SOD323 footprint | 0.95 mm height and 1.35 mm width allow placement in dense power management IC layouts or sensor modules |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping microcontroller I/O pins against load-dump transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Zener-based shunt clamp placed between MCU GPIO and chassis ground. Use Value: Limits pin voltage to ≤3.07 V during 200 ms 24 V surges, preventing latch-up while drawing <10 µA in standby. |
Use Scenario: Providing stable 3.0 V reference for analog front-end amplifiers in 4–20 mA loop transmitters. IC Role / Device Role / Timing Role: Precision voltage reference source for op-amp biasing and ADC reference scaling. Use Value: ±2 % tolerance and −2.1 mV/K TC ensure reference drift remains within 0.5 % over −40 °C to +85 °C operating range. |
| USB-C Power Delivery Monitor | Low-Power IoT Node Voltage Supervisor |
Use Scenario: Monitoring VBUS presence and overvoltage in USB-C receptacles using resistive divider + comparator. IC Role / Device Role / Timing Role: Zener-clamped divider node protecting comparator input from >20 V faults. Use Value: 95 Ω rdif maintains divider ratio accuracy even during 100 µs surge events up to 8 A peak. |
Use Scenario: Enabling brown-out detection in battery-powered BLE sensors operating down to 2.2 V. IC Role / Device Role / Timing Role: Reverse-biased Zener feeding comparator hysteresis network. Use Value: 10 µA max IR at 2.4 V ensures detector draws <50 nA total quiescent current in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V0 | Same 3.0 V nominal, but ±5 % tolerance and higher rdif (150 Ω); not AEC-Q101 qualified | Limited to commercial-grade consumer products; unsuitable for automotive or industrial temp range | Select only if cost sensitivity outweighs voltage stability and qualification requirements |
| MMSZ4684T1G | 3.0 V nominal, ±5 % tolerance, 100 Ω rdif, AEC-Q101 qualified, but higher IR (50 µA at 2.4 V) | Acceptable for general-purpose clamping but less suitable for ultra-low-leakage biasing | Prefer when board-level ESD robustness is prioritized over standby current budget |
Compared with BZX384-B3V0 and MMSZ4684T1G, PDZ3.0B-QX offers tighter voltage tolerance (±2 %), lower leakage (≤10 µA), and matched low rdif - making it optimal for automotive sensor references and precision feedback paths where regulation accuracy directly impacts system calibration.
Availability
PDZ3.0B-QX is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, USB-C power delivery monitors, and low-power IoT node voltage supervisors requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PDZ3.0B-QX 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 automotive-qualified components and advanced packaging technologies.
PDZ3.0B-QX belongs to the PDZ-B-Q series of AEC-Q101-qualified Zener diodes engineered specifically for precision voltage regulation in automotive and industrial environments where compact size, low leakage, and stable temperature behavior are essential.
FAQ
What is the maximum non-repetitive peak reverse current (IZSM) for PDZ3.0B-QX?
The maximum non-repetitive peak reverse current is 8.0 A at tp = 100 µs and Tamb = 25 °C, verified per Table 8 in the datasheet. This rating supports transient suppression in automotive load-dump scenarios when used with appropriate series limiting resistance.
Does PDZ3.0B-QX have a specified forward voltage at higher currents?
Yes - forward voltage is characterized up to 100 mA, with VF ≤ 1.1 V at IF = 100 mA (pulse test, tp ≤ 300 µs). This supports bidirectional ESD protection designs where forward conduction may occur during negative transients.
How does the temperature coefficient affect regulation accuracy over temperature?
With a typical temperature coefficient of −2.1 mV/K at 5 mA, PDZ3.0B-QX exhibits a total VZ shift of approximately −105 mV from 25 °C to 75 °C junction temperature - a 3.5 % deviation relative to nominal 3.0 V, which must be accounted for in high-accuracy reference designs.
Is the SOD323 package compatible with standard reflow soldering profiles?
Yes - Nexperia provides validated reflow footprint dimensions (Figure 9) and recommends peak temperatures ≤ 260 °C for ≤ 30 seconds. The package withstands JEDEC J-STD-020 moisture sensitivity level 1, eliminating bake requirements prior to assembly.
PDZ3.0B-QX 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):
- 3 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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
PDZ3.0B-QX FAQ
1.How can I place an order for PDZ3.0B-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ3.0B-QX 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 PDZ3.0B-QX reliable?
The price and inventory of PDZ3.0B-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ3.0B-QX is usually 5 days.
3.What payment methods are accepted for PDZ3.0B-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ3.0B-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ3.0B-QX?
PDZ3.0B-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ3.0B-QX 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 PDZ3.0B-QX?
For technical support, including PDZ3.0B-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ3.0B-QX requirements.
6.How does Aetrix verify that PDZ3.0B-QX is sourced from the original manufacturer or authorized distributors?
All PDZ3.0B-QX 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 PDZ3.0B-QX meets industry standards.
7.What is the process for return or replacement of PDZ3.0B-QX?
All PDZ3.0B-QX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ3.0B-QX, 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 PDZ3.0B-QX part is unused and in its original packaging.
Return procedure for PDZ3.0B-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ3.0B-QX 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…
