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Nexperia USA Inc. PZU15B3A,115
- Part No.:
- PZU15B3A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU15B3A,115.pdf
- Description:
- DIODE ZENER 15V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:3,129
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Product details
Overview
PZU15B3A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 15 V nominal working voltage, 320 mW total power dissipation at 25 °C ambient, and 40 W non-repetitive peak reverse power. It delivers low dynamic impedance (80 Ω max at IZ = 5 mA), tight leakage control (15 nA max at IZ = 0.5 mA), and optimized noise performance for precision voltage reference in compact DC-DC feedback loops.
For engineers reviewing the PZU15B3A,115 datasheet, PZU15B3A,115 pinout, PZU15B3A,115 application, or PZU15B3A,115 equivalent, this device supports stable shunt regulation in space-constrained industrial power supplies, sensor biasing networks, and overvoltage protection circuits where ±2 % initial accuracy and low temperature coefficient (±2 mV/K typical) are required.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics, enabling precise clamping and reference functions without external bias circuitry. Its differential resistance of ≤80 Ω at 5 mA ensures minimal output voltage variation under load transients.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it features thermal resistance from junction to solder point of 55 K/W and junction-to-ambient of 255 K/W (with 1 cm² cathode pad), supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 15 V ±2 % - Ensures tight regulation tolerance for feedback loop stability in 12–15 V supply rails. |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C - Defines maximum continuous DC power handling on standard FR4 PCB. |
| Non-repetitive Peak Reverse Power | 40 W (tp = 100 µs) - Supports transient surge suppression in input protection stages. |
| Differential Resistance | ≤80 Ω at IZ = 5 mA - Minimizes output voltage drift during current variations in reference applications. |
| Reverse Current | ≤15 nA at IZ = 0.5 mA - Enables ultra-low quiescent current in battery-powered sensor biasing. |
| Temperature Coefficient | ±2 mV/K typical - Provides predictable voltage drift across –55 °C to +150 °C operating range. |
| Package | SOD323 (SC-76) - 1.7 mm × 1.25 mm × 0.95 mm footprint ideal for high-density PCB layouts. |
Pinout & Package
SOD323 (SC-76) plastic surface-mount package with 2 leads, 1.3 mm pitch, and cathode marked by a bar on the body.
| 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 lower-potential rail; forms reverse-biased junction for Zener operation. |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B3 series) | Reduces need for post-production trimming in voltage reference designs. |
| Low dynamic impedance (≤80 Ω) | Maintains regulation accuracy under varying load currents in feedback networks. |
| Optimized leakage profile | 15 nA max at 0.5 mA enables low-power sensor biasing without signal corruption. |
| Hard breakdown knee | Ensures sharp turn-on behavior for clean clamping in overvoltage protection circuits. |
| Thermal resistance Rth(j-sp) = 55 K/W | Supports sustained operation at elevated temperatures when soldered to adequate copper area. |
Applications
| Industrial Power Supply Feedback | IoT Sensor Bias Reference |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler-coupled feedback. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 15 V reference for TL431-type error amplifier input. Use Value: ±2 % tolerance eliminates need for external resistor trimming; low rdif maintains loop stability across line/load variations. |
Use Scenario: Providing stable bias voltage to MEMS pressure sensor analog front-end in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Low-current Zener reference supplying 15 V to sensor excitation circuitry. Use Value: 15 nA max reverse current minimizes standby drain; SOD323 size fits within 2.0 mm² board area budget. |
| Overvoltage Clamp for MCU I/O | USB Port ESD Protection Auxiliary Clamp |
Use Scenario: Protecting 15 V-tolerant analog input pins of industrial microcontrollers against transient surges. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to 15.3 V during 1 kV EFT events. Use Value: 40 W peak power rating absorbs 100 µs surges without degradation; hard knee ensures consistent clamping threshold. |
Use Scenario: Secondary clamping stage downstream of TVS diodes in USB 2.0 data line protection schemes. IC Role / Device Role / Timing Role: Precision secondary clamp stabilizing line voltage at 15 V after primary TVS conduction. Use Value: Tight 15 V ±2 % tolerance prevents false triggering; SOD323 allows co-placement with high-speed signal traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C15,215 | ±5 % tolerance, 300 mW Ptot, higher rdif (150 Ω), SOT23 package (larger footprint) | Acceptable for non-critical references but lacks precision for closed-loop feedback | Select when cost sensitivity outweighs regulation accuracy and board space is not constrained |
| MMSZ5245B-7-F | ±5 % tolerance, 500 mW Ptot, 17 Ω rdif, SOD123 package (higher thermal mass) | Better power handling but looser tolerance compromises reference stability | Prefer for higher-power clamping where ±5 % is acceptable and thermal margin is critical |
Compared with PZU15B3A,115, BZX84-C15,215 trades accuracy and size for cost, while MMSZ5245B-7-F sacrifices tolerance for higher power and lower impedance-making PZU15B3A,115 optimal for space-limited, precision-regulated systems requiring ±2 % stability.
Availability
PZU15B3A,115 is available at Aetrix Electronics and suitable for industrial power supplies, IoT sensor nodes, MCU I/O protection, and USB interface clamping requiring stable component supply with guaranteed long-term sourcing.
Supply support for PZU15B3A,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 focused on high-volume, high-reliability discrete and logic devices, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality control.
The PZUxBA series targets precision voltage regulation in miniaturized power management systems, emphasizing tight tolerance, low leakage, and robust surge capability in ultra-small packages for next-generation compact electronics.
FAQ
What is the maximum steady-state current for PZU15B3A,115 at 25 °C ambient?
The device supports up to 21.3 mA continuous reverse current at 25 °C ambient, calculated from its 320 mW total power dissipation rating divided by 15 V nominal Zener voltage. Derating is required above 25 °C per the thermal resistance curve in the datasheet.
Can PZU15B3A,115 be used in place of a 1N4744A?
No-PZU15B3A,115 is a ±2 % tolerance, 320 mW SOD323 device, whereas 1N4744A is a ±5 %, 1 W through-hole part in DO-41 package. The power rating, package, and thermal behavior differ significantly; direct substitution requires PCB redesign and thermal validation.
Does the marking 'VW' on PZU15B3A,115 indicate the Zener voltage?
Yes-per Table 4 of the datasheet, 'VW' is the specific marking code for PZU15B3A, confirming 15 V nominal voltage and B3 (±2 %) tolerance series. The cathode bar adjacent to pin 1 completes orientation identification.
How does PZU15B3A,115 perform under pulsed surge conditions?
It withstands 40 W non-repetitive peak reverse power for 100 µs square-wave pulses at 25 °C junction temperature, corresponding to ~2.67 A peak current. Performance degrades linearly with increasing pulse duration or ambient temperature, as defined in Figure 1 of the datasheet.
PZU15B3A,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
PZU15B3A,115 FAQ
1.How can I place an order for PZU15B3A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU15B3A,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 PZU15B3A,115 reliable?
The price and inventory of PZU15B3A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU15B3A,115 is usually 5 days.
3.What payment methods are accepted for PZU15B3A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU15B3A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU15B3A,115?
PZU15B3A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU15B3A,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 PZU15B3A,115?
For technical support, including PZU15B3A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU15B3A,115 requirements.
6.How does Aetrix verify that PZU15B3A,115 is sourced from the original manufacturer or authorized distributors?
All PZU15B3A,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 PZU15B3A,115 meets industry standards.
7.What is the process for return or replacement of PZU15B3A,115?
All PZU15B3A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU15B3A,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 PZU15B3A,115 part is unused and in its original packaging.
Return procedure for PZU15B3A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU15B3A,115 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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