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Nexperia USA Inc. PDZ4.7B,115
- Part No.:
- PDZ4.7B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ4.7B,115.pdf
- Description:
- DIODE ZENER 4.7V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,649
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Product details
Overview
PDZ4.7B,115 from Nexperia is a single low-power Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation at 4.7 V nominal working voltage with ±2 % tolerance, 600 Ω differential resistance at 1 mA, and 2 μA reverse leakage at 1 V. It delivers stable clamping in low-current bias networks, ESD protection interfaces, and reference circuits for sensor signal conditioning.
For engineers reviewing the PDZ4.7B,115 datasheet, PDZ4.7B,115 pinout, PDZ4.7B,115 application, or PDZ4.7B,115 equivalent, this device is selected for compact voltage reference stability, low thermal drift (−1.4 mV/K at 5 mA), and hard breakdown knee behavior in space-constrained consumer and industrial PCBs.
Technical Context
This Zener operates in reverse-bias breakdown mode with a nominal 4.7 V regulation point at IZ = 5 mA, exhibiting a typical temperature coefficient of −1.4 mV/K - indicating negative thermal drift optimized for mid-range voltage references. Its differential resistance of 600 Ω at 1 mA enables predictable impedance matching in feedback paths.
The device features a hard breakdown knee and low leakage (≤2 μA at VR = 1 V), supporting reliable threshold detection in power-on reset circuits and overvoltage clamp stages where sharp turn-on and minimal standby current are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VZ) | 4.55 V to 4.75 V at IZ = 5 mA - defines precise regulation band for reference design margin |
| Differential Resistance (rdif) | 600 Ω at IZ = 1 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | ≤2 μA at VR = 1 V - ensures minimal quiescent current in always-on bias networks |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - supports use as low-drop rectifier or polarity indicator |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous clamp energy in surge events |
| Thermal Resistance (Rth(j-a)) | 340 K/W - defines junction-to-ambient rise per watt, critical for derating above 25 °C |
| Temperature Coefficient (SZ) | −1.4 mV/K at IZ = 5 mA - quantifies voltage drift with ambient temperature change |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 1.35 mm × 1.75 mm footprint, 0.95 mm height, cathode-marked with bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; accepts reverse-bias current during Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for breakdown operation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on for accurate threshold detection without soft saturation |
| Low dynamic impedance at low currents | 600 Ω at 1 mA supports stable regulation even in microampere-biased reference legs |
| Very low leakage current | ≤2 μA at 1 V reverse bias minimizes error in high-impedance sensing nodes |
| Small SOD323 footprint | 1.35 mm × 1.75 mm area allows placement in dense layout regions near IC power pins |
| ±2 % voltage tolerance | Reduces need for post-production trimming in cost-sensitive consumer power rails |
Applications
| Power Supply Reference | ESD Protection Clamp |
|---|---|
Use Scenario: Providing stable 4.7 V reference for ADC voltage dividers and op-amp biasing in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential independent of supply variation. Use Value: Maintains <±10 mV reference shift across −40 °C to +85 °C due to known −1.4 mV/K coefficient and tight 4.55–4.75 V tolerance. |
Use Scenario: Clamping transient voltages on USB data lines before entering USB transceiver ICs. IC Role / Device Role / Timing Role: Low-capacitance (325 pF) shunt element that conducts only above 4.75 V to divert ESD energy. Use Value: Limits line voltage to safe levels within 10 ns response while adding <0.5 pF parasitic capacitance to signal integrity. |
| Microcontroller Reset Circuit | Overvoltage Detection Node |
Use Scenario: Generating clean power-on reset pulse by holding MCU reset pin low until supply exceeds 4.7 V. IC Role / Device Role / Timing Role: Zener-based voltage monitor feeding RC delay network to reset controller input. Use Value: Delivers deterministic release threshold with hard knee and <2 μA leakage to avoid premature release during brown-out. |
Use Scenario: Detecting overvoltage condition on 5 V rail in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Precision shunt element triggering comparator when rail exceeds 4.75 V. Use Value: Enables ±0.1 V trip-point accuracy due to 0.2 V regulation window and low rdif limiting hysteresis error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B4V7 | Same 4.7 V nominal, ±2 % tolerance, but SOD323 package with 400 mW rating and 600 Ω rdif at 5 mA | Identical thermal and electrical envelope; slightly higher leakage (3 μA vs. 2 μA) | Select when cross-sourcing with existing BZX384 footprint and qualification history |
| MMSZ4704T1G | 4.7 V nominal, ±5 % tolerance, 500 mW rating, 100 Ω rdif at 20 mA - tighter impedance but looser voltage spec | Lower rdif improves load regulation but wider tolerance increases calibration burden | Prefer for high-current clamp roles where voltage accuracy is secondary to dynamic response |
Compared with BZX384-B4V7 and MMSZ4704T1G, PDZ4.7B,115 offers the narrowest voltage tolerance (±2 %) and lowest leakage (2 μA), making it optimal for precision reference and low-power monitoring where regulation accuracy and standby current dominate selection criteria.
Availability
PDZ4.7B,115 is available at Aetrix Electronics and suitable for voltage reference design, ESD protection implementation, and microcontroller reset circuitry requiring stable component supply and consistent parametric performance across production lots.
Supply support for PDZ4.7B,115 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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for mass-market electronics.
PDZ4.7B,115 belongs to the PDZ-B series of low-power Zener diodes engineered for compact, high-accuracy voltage regulation in space-constrained consumer, computing, and industrial PCBs.
FAQ
What is the maximum reverse current the PDZ4.7B,115 can handle continuously?
The PDZ4.7B,115 has no specified continuous reverse current rating; its operation is defined by power dissipation limits. At 25 °C ambient on FR4 PCB, it sustains up to 400 mW - corresponding to ~85 mA at 4.7 V. Derating applies above 25 °C per the 340 K/W thermal resistance curve.
Does the PDZ4.7B,115 have a specified junction-to-case thermal resistance?
No - the datasheet provides only junction-to-solder-point (130 K/W) and junction-to-ambient (340 K/W) values under defined PCB conditions. Junction-to-case is not characterized or published for this SOD323 device.
Can PDZ4.7B,115 be used in forward-bias applications like LED indicators?
Yes - its forward voltage is ≤0.9 V at 10 mA, making it usable as a low-VF clamp or polarity indicator. However, it lacks optimized luminous or switching characteristics; dedicated LEDs or Schottky diodes are preferred for signaling or rectification.
How does the −1.4 mV/K temperature coefficient affect long-term reference stability?
At 5 mA bias, a 50 °C ambient rise causes ~70 mV downward shift in VZ. For applications needing <±10 mV drift, active compensation or tighter ambient control is required - the coefficient is predictable and linear, enabling first-order correction in firmware or analog design.
PDZ4.7B,115 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):
- 4.7 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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
PDZ4.7B,115 FAQ
1.How can I place an order for PDZ4.7B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ4.7B,115 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 PDZ4.7B,115 reliable?
The price and inventory of PDZ4.7B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ4.7B,115 is usually 5 days.
3.What payment methods are accepted for PDZ4.7B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ4.7B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ4.7B,115?
PDZ4.7B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ4.7B,115 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 PDZ4.7B,115?
For technical support, including PDZ4.7B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ4.7B,115 requirements.
6.How does Aetrix verify that PDZ4.7B,115 is sourced from the original manufacturer or authorized distributors?
All PDZ4.7B,115 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 PDZ4.7B,115 meets industry standards.
7.What is the process for return or replacement of PDZ4.7B,115?
All PDZ4.7B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ4.7B,115, 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 PDZ4.7B,115 part is unused and in its original packaging.
Return procedure for PDZ4.7B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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