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Nexperia USA Inc. PZU15B2A,115
- Part No.:
- PZU15B2A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU15B2A,115.pdf
- Description:
- DIODE ZENER 15V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,815
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Product details
Overview
PZU15B2A,115 from Nexperia is a precision Zener voltage regulator diode in SOD323 (SC-76) package, designed for low-power voltage reference and regulation in space-constrained circuits. It delivers a nominal 15 V Zener voltage with ±2 % tolerance (B2 series), 80 Ω maximum differential resistance at IZ = 5 mA, 15 nA reverse current at IZ = 0.5 mA, and operates up to 150 °C junction temperature - ideal for power supply feedback loops and analog sensor biasing.
For engineers reviewing the PZU15B2A,115 datasheet, PZU15B2A,115 pinout, PZU15B2A,115 application, or PZU15B2A,115 equivalent, key selection criteria include tight voltage tolerance, low leakage at sub-mA bias, stable temperature coefficient (~2 mV/K), and compatibility with standard SMD reflow processes on FR4 PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its B2 tolerance grade ensures ±2 % accuracy across production lots, and its optimized leakage profile supports fast switching and reduced noise per AN90031.
The device exhibits a hard breakdown knee and low dynamic impedance below 1 mA, enabling precise regulation in low-current applications such as microcontroller reset circuits and ADC reference buffers. Thermal resistance from junction to solder point is 55 K/W, supporting reliable operation in thermally dense layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.85 V to 15.52 V at IZ = 5 mA - defines stable regulation point for feedback networks |
| Differential Resistance rdif | ≤80 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current IR | ≤15 nA at VR = 11.4 V - enables ultra-low quiescent current in battery-powered references |
| Temperature Coefficient SZ | ~2 mV/K - provides predictable drift behavior for temperature-compensated designs |
| Total Power Dissipation Ptot | 320 mW at Tamb ≤ 25 °C on standard FR4 - sets maximum continuous bias current limit (~21 mA) |
| Non-repetitive Peak Power PZSM | 40 W for tp = 100 μs - supports transient overvoltage clamping in surge protection stages |
| Junction Temperature Tj | −55 °C to +150 °C - qualifies for industrial and extended-temperature embedded systems |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package: 1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, cathode-marked with bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode | Connected to ground or current-limiting resistor; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B2 grade) | Enables high-accuracy voltage references without external trimming in production-grade analog circuits |
| Low 15 nA reverse leakage at 11.4 V | Minimizes error in high-impedance bias networks and extends battery life in always-on monitoring nodes |
| Hard breakdown knee and low rdif | Delivers stable regulation down to 0.5 mA bias current - suitable for ultra-low-power MCU peripherals |
| Optimized leakage for noise reduction | Intentional minor leakage rise improves switching speed and reduces broadband noise per AN90031 |
| SOD323 footprint compatibility | Supports automated placement and reflow on standard 0805-equivalent land patterns with 0.5 mm solder pads |
Applications
| Power Supply Feedback Loop | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Regulating feedback voltage in isolated DC-DC converters using optocoupler-coupled TL431 alternatives. IC Role / Device Role / Timing Role: Zener diode provides precise 15 V reference to control secondary-side error amplifier input. Use Value: Tight ±2 % tolerance maintains output voltage accuracy within ±1.5 % over line/load/temperature without calibration. |
Use Scenario: Generating clean, temperature-stable reset threshold for ARM Cortex-M0+ microcontrollers. IC Role / Device Role / Timing Role: Acts as voltage-sensing element in RC-based reset generator with hysteresis. Use Value: Low 15 nA leakage prevents capacitor discharge drift, ensuring consistent reset timing across −40 °C to +85 °C. |
| ADC Reference Buffer | Current Source Biasing |
Use Scenario: Stabilizing reference voltage for 12-bit SAR ADCs in portable data loggers. IC Role / Device Role / Timing Role: Supplies low-noise 15 V reference to op-amp buffer driving ADC REF+ pin. Use Value: Hard breakdown knee and 80 Ω rdif suppress ripple-induced quantization error below 0.5 LSB. |
Use Scenario: Setting bias current for low-noise JFET amplifiers in precision instrumentation front-ends. IC Role / Device Role / Timing Role: Provides stable 15 V node to define gate-source voltage of cascode current mirror. Use Value: Predictable 2 mV/K temperature coefficient allows first-order compensation of JFET VGS drift. |
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-C15 | ±5 % tolerance (C grade), 350 Ω rdif, 100 nA IR at 11.4 V | Higher leakage and looser tolerance reduce accuracy in precision feedback paths | Acceptable for non-critical voltage clamping where cost is primary constraint |
| MMSZ5245B | ±5 % tolerance, 17 Ω rdif but only at IZ = 20 mA; 50 nA IR at 11.4 V | Requires higher bias current to achieve low impedance, increasing power in low-IQ designs | Preferred when lower dynamic impedance at higher currents is needed, not for sub-mA operation |
Compared with BZX84-C15 and MMSZ5245B, PZU15B2A,115 uniquely combines ±2 % tolerance, sub-20 nA leakage, and <80 Ω impedance at 5 mA - making it optimal for battery-powered, high-accuracy regulation where both precision and ultra-low quiescent current are mandatory.
Availability
PZU15B2A,115 is available at Aetrix Electronics and suitable for industrial power supplies, portable instrumentation, automotive body electronics, and medical sensor modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PZU15B2A,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, energy-efficient logic, discrete, and MOSFET devices with focus on reliability and manufacturability for mass-market electronics.
PZUxBA series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered specifically for compact, high-yield SMD voltage reference applications demanding tight tolerance, low leakage, and robust thermal performance in consumer and industrial systems.
FAQ
What is the maximum continuous forward current rating for PZU15B2A,115?
The device is rated for 200 mA maximum forward current per Absolute Maximum Ratings (Table 5). However, it is operated in reverse breakdown for regulation; forward conduction is only relevant during polarity-reversal fault conditions or circuit startup transients.
Does PZU15B2A,115 require a series current-limiting resistor in all applications?
Yes - a series resistor is mandatory to limit reverse current to safe levels. For 15 V regulation from a 24 V rail, a 470 Ω resistor limits IZ to ~19 mA, staying within the 320 mW Ptot limit at 25 °C ambient.
How does the B2 tolerance grade affect long-term stability in temperature-varying environments?
B2 denotes ±2 % initial tolerance at 25 °C; long-term stability depends on operating stress. At 150 °C junction temperature and 50 % Ptot derating, typical VZ drift remains within ±0.5 % over 1000 hours per Nexperia reliability testing protocols.
Can PZU15B2A,115 be used in place of a TL431 in shunt regulator configurations?
No - TL431 is an adjustable 2.5 V reference with active gain and current sink capability; PZU15B2A,115 is a passive 15 V fixed Zener. It can replace TL431 only in simple fixed-voltage clamp roles, not in closed-loop feedback where adjustable thresholds or high sink current (>100 mA) are required.
PZU15B2A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PZU15B2A,115 FAQ
1.How can I place an order for PZU15B2A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU15B2A,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 PZU15B2A,115 reliable?
The price and inventory of PZU15B2A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU15B2A,115 is usually 5 days.
3.What payment methods are accepted for PZU15B2A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU15B2A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU15B2A,115?
PZU15B2A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU15B2A,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 PZU15B2A,115?
For technical support, including PZU15B2A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU15B2A,115 requirements.
6.How does Aetrix verify that PZU15B2A,115 is sourced from the original manufacturer or authorized distributors?
All PZU15B2A,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 PZU15B2A,115 meets industry standards.
7.What is the process for return or replacement of PZU15B2A,115?
All PZU15B2A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU15B2A,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 PZU15B2A,115 part is unused and in its original packaging.
Return procedure for PZU15B2A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU15B2A,115 Tags
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