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Nexperia USA Inc. PZU16B2A,115
- Part No.:
- PZU16B2A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU16B2A,115.pdf
- Description:
- DIODE ZENER 16V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,700
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Product details
Overview
PZU16B2A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 16 V nominal working voltage, 320 mW total power dissipation at 25 °C ambient, and 12 A non-repetitive peak reverse current. It delivers low differential resistance (≤80 Ω at IZ = 5 mA), tight temperature coefficient (±1.5 mV/K), and optimized leakage for fast switching in precision voltage reference circuits.
For engineers reviewing the PZU16B2A,115 datasheet, PZU16B2A,115 pinout, PZU16B2A,115 application, or PZU16B2A,115 equivalent, this device serves as a stable, surface-mount voltage clamp in low-power analog monitoring, power supply feedback loops, and overvoltage protection where ±2 % regulation accuracy and thermal stability across -55 °C to +150 °C are required.
Technical Context
This Zener diode operates in reverse breakdown mode with hard knee characteristics, enabling precise clamping without significant voltage drift under varying load currents. Its differential resistance of ≤80 Ω at 5 mA ensures minimal output variation across operating current range.
The device exhibits intentional minor rise in reverse leakage current-per AN90031-to reduce switching noise and improve transient response in dynamic regulation applications, while maintaining junction temperature limits up to 150 °C and thermal resistance of 255 K/W to solder point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 16 V ±2 % - defines stable regulation threshold for feedback or clamping at typical 5 mA test current |
| Total Power Dissipation | 320 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Differential Resistance | ≤80 Ω at IZ = 5 mA - ensures <100 mV output shift per 1 mA current change in regulation zone |
| Reverse Current | ≤20 nA at VR = 11.2 V - enables low-quiescent-current biasing in high-impedance reference nodes |
| Temperature Coefficient | ±1.5 mV/K - guarantees <±24 mV drift over full -55 °C to +150 °C junction range |
| Non-repetitive Peak Current | 12 A for tp = 100 μs - supports surge suppression in transient overvoltage events |
| Junction Temperature Limit | 150 °C - constrains thermal design margin for long-term reliability in enclosed environments |
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 by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity marker aligns with PCB silkscreen bar |
| 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 (B2 series) | Enables tighter regulation than ±5 % variants, reducing need for post-regulation trimming |
| Low differential resistance (≤80 Ω) | Maintains voltage stability under load current shifts typical in sensor bias or ADC reference circuits |
| Optimized leakage for fast switching | Intentional minor IR increase improves transient response and reduces ringing in clamping applications |
| Thermal resistance to solder point: 255 K/W | Allows direct thermal coupling to copper pour for improved power handling in compact layouts |
| Operating ambient range: −55 °C to +150 °C | Supports deployment in industrial control, automotive under-hood, and outdoor electronics |
Applications
| Power Supply Feedback Loop | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck-boost converters via optocoupler-coupled feedback network. IC Role / Device Role / Timing Role: Zener reference providing stable 16 V threshold to drive optocoupler LED during overvoltage conditions. Use Value: Tight ±2 % tolerance ensures accurate trip point; low rdif minimizes error contribution from current-source variations in feedback path. |
Use Scenario: Protecting microcontroller I/O pins or analog front-end inputs from ESD-induced transients or supply rail overshoot. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess energy to ground before downstream circuit damage occurs. Use Value: 12 A peak current rating handles IEC 61000-4-2 Level 4 surges; optimized leakage enables rapid recovery without latch-up. |
| Reference Voltage Source | Current Source Bias Node |
Use Scenario: Generating stable bias voltage for op-amp input stages, ADC references, or sensor excitation circuits. IC Role / Device Role / Timing Role: Precision voltage node supplying fixed 16 V to high-impedance loads with minimal drift. Use Value: ±1.5 mV/K TC and ≤20 nA IR ensure sub-mV drift over temperature and negligible loading error in 100 kΩ+ networks. |
Use Scenario: Setting constant current for LED drivers, laser diodes, or analog sensor excitation using two-resistor Zener-based current mirror. IC Role / Device Role / Timing Role: Stable voltage reference defining base-emitter or gate-source bias potential in current-setting topology. Use Value: Low rdif maintains current accuracy despite supply ripple; SOD323 footprint enables dense layout near power FETs or LEDs. |
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-C16,215 | ±5 % tolerance, higher rdif (≤100 Ω), same SOD323 package and 16 V nominal rating | Acceptable where ±5 % regulation accuracy suffices and cost sensitivity outweighs precision | Select when BOM simplification or legacy compatibility is prioritized over tight voltage control |
| MMSZ5245B-7-F | ±5 % tolerance, 500 mW Ptot, SOD-123 package (larger footprint, higher thermal mass) | Better power handling but incompatible pinout; requires PCB redesign and larger board area | Choose only if thermal budget exceeds 320 mW and layout allows SOD-123 rework |
Compared with PZU16B2A,115, BZX84-C16,215 trades ±2 % accuracy for broader availability and lower cost, while MMSZ5245B-7-F sacrifices surface-mount compatibility for higher power margin-neither offers the combined precision, noise-optimized leakage, and ultra-compact SOD323 fit of the original.
Availability
PZU16B2A,115 is available at Aetrix Electronics and suitable for power supply feedback loops, overvoltage protection clamps, and precision reference voltage sources requiring stable component supply across industrial, automotive, and consumer electronics production programs.
Supply support for PZU16B2A,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, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and robustness.
The PZUxBA series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered for high-accuracy voltage referencing and clamping in space-constrained, thermally demanding applications across automotive, industrial, and computing systems.
FAQ
What is the maximum continuous reverse current the PZU16B2A,115 can sustain at 25 °C ambient?
The device does not specify a maximum continuous reverse current; instead, its safe operating limit is defined by total power dissipation (320 mW at Tamb ≤ 25 °C). At 16 V Zener voltage, this corresponds to ~20 mA average reverse current on FR4 PCB with standard footprint. Exceeding this requires derating per thermal resistance data (255 K/W to solder point) and ambient temperature.
How does the "B2" suffix in PZU16B2A,115 affect its electrical behavior compared to "B" or "B3" variants?
The "B2" suffix denotes ±2 % Zener voltage tolerance at IZ = 5 mA, tighter than ±5 % (B) but looser than ±1 % (B3, not offered in PZU16x). It also correlates with specific rdif (≤80 Ω) and IR (≤20 nA at 11.2 V) values confirmed in Table 8, distinguishing it from broader-tolerance versions with higher resistance or leakage.
Can PZU16B2A,115 be used in place of a 15 V Zener diode in an existing design?
No-PZU16B2A,115 is specified at 16 V nominal (15.68–16.32 V range), not 15 V. Substituting it for a true 15 V Zener would raise regulation/clamp voltage by ~1 V, potentially causing overvoltage stress in downstream components. Use PZU15B2A,115 for ±2 % 15 V regulation.
Is the SOD323 package of PZU16B2A,115 compatible with standard reflow soldering profiles?
Yes-the datasheet provides dedicated reflow footprint (Fig. 10) and specifies compatibility with JEDEC J-STD-020 moisture sensitivity level 1. Recommended peak temperature is 260 °C max, with time above 217 °C limited to 60–150 seconds. Thermal pad design must follow the 0.5 mm × 0.6 mm solder land dimensions shown for reliable joint formation.
PZU16B2A,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):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12 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
PZU16B2A,115 FAQ
1.How can I place an order for PZU16B2A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU16B2A,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 PZU16B2A,115 reliable?
The price and inventory of PZU16B2A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU16B2A,115 is usually 5 days.
3.What payment methods are accepted for PZU16B2A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU16B2A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU16B2A,115?
PZU16B2A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU16B2A,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 PZU16B2A,115?
For technical support, including PZU16B2A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU16B2A,115 requirements.
6.How does Aetrix verify that PZU16B2A,115 is sourced from the original manufacturer or authorized distributors?
All PZU16B2A,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 PZU16B2A,115 meets industry standards.
7.What is the process for return or replacement of PZU16B2A,115?
All PZU16B2A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU16B2A,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 PZU16B2A,115 part is unused and in its original packaging.
Return procedure for PZU16B2A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU16B2A,115 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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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
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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