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Nexperia USA Inc. PZU22B2A,115
- Part No.:
- PZU22B2A,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PZU22B2A,115.pdf
- Description:
- DIODE ZENER 22V 320MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,797
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Product details
Overview
PZU22B2A,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 22 V nominal working voltage, 320 mW total power dissipation, and 17 A non-repetitive peak reverse current at 100 µs pulse width. It delivers low differential resistance (≤100 Ω at IZ = 5 mA), tight temperature coefficient (±1.3 mV/K), and optimized leakage for noise-sensitive voltage reference and regulation in compact power management circuits.
For engineers reviewing the PZU22B2A,115 datasheet, PZU22B2A,115 pinout, PZU22B2A,115 application, or PZU22B2A,115 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at low bias current, thermal resistance to solder point (255 K/W), and SC-76 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates as a precision shunt voltage reference with hard breakdown knee and intentional minor leakage rise to reduce switching noise-per AN90031. Its 22 V nominal Zener voltage is specified at IZ = 5 mA with ±2 % tolerance (B2 series), and it maintains stable regulation across -55 °C to +150 °C ambient range.
Thermal design relies on low Rth(j-sp) = 255 K/W (cathode pad) and Rth(j-a) = 390 K/W (free air), enabling reliable operation under pulsed surge conditions up to 40 W (100 µs square wave). Reverse current is limited to ≤25 nA at VR = 17.6 V (80 % of VZ) per datasheet Table 8.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 22 V nominal at IZ = 5 mA; ±2 % tolerance ensures stable reference within 21.56–22.44 V |
| Differential Resistance rdif | ≤100 Ω at IZ = 5 mA; enables low output impedance for ripple suppression in feedback loops |
| Reverse Current IR | ≤25 nA at VR = 17.6 V; minimizes quiescent power loss in battery-backed circuits |
| Non-repetitive Peak IZSM | 17 A at tp = 100 µs; supports transient overvoltage clamping without degradation |
| Total Power Dissipation Ptot | 320 mW at Tamb ≤ 25 °C on FR4 PCB; defines continuous DC regulation capability |
| Temperature Coefficient SZ | ±1.3 mV/K; enables predictable VZ drift compensation in temperature-stable references |
| Package | SOD323 (SC-76); 1.7 mm × 1.25 mm × 0.95 mm body; compatible with standard reflow soldering footprints |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads, 1.3 mm pitch, and cathode marked by a bar on the device top surface.
| 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; completes shunt regulation path during reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance (B2 series) | Enables tighter regulation accuracy than ±5 % variants, reducing need for post-calibration in precision supplies |
| Optimized leakage for noise reduction | Intentional minor IR rise improves fast-switching behavior and suppresses high-frequency noise per AN90031 |
| Hard breakdown knee | Sharp Zener transition at 22 V ensures clean regulation onset and minimal voltage hysteresis |
| Low Rth(j-sp) = 255 K/W | Supports higher sustained power handling when cathode pad is thermally enhanced on PCB |
| SC-76 footprint compatibility | Matches industry-standard SOD323 land pattern (Fig. 10), enabling drop-in replacement in space-constrained designs |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
|
Use Scenario: Providing stable 22 V reference for adjustable linear regulator feedback network in industrial DC-DC modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise output setpoint via resistor divider. Use Value: ±2 % tolerance and 100 Ω dynamic impedance ensure <±0.5 % output regulation error under load transients. |
Use Scenario: Clamping transient surges on 24 V automotive accessory bus lines exposed to load-dump events. IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing energy during 100 µs spikes up to 40 W. Use Value: 17 A IZSM rating and hard breakdown knee prevent overshoot beyond 24.2 V during ISO 7637-2 pulses. |
| Low-Power Sensor Biasing | ADC Reference Stabilization |
|
Use Scenario: Generating clean 22 V bias for high-voltage piezoresistive pressure sensor excitation in IoT edge nodes. IC Role / Device Role / Timing Role: Low-leakage Zener source maintaining constant bias despite battery voltage decay. Use Value: ≤25 nA reverse current at 17.6 V minimizes standby drain, extending 10-year battery life. |
Use Scenario: Stabilizing reference input of 16-bit SAR ADC in precision data acquisition systems. IC Role / Device Role / Timing Role: Low-noise shunt regulator filtering supply ripple before ADC reference pin. Use Value: Optimized leakage profile reduces broadband noise, improving ENOB by ≥0.8 bits at 100 kSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C22,215 | ±5 % tolerance, 400 mW Ptot, SOT23 package (larger footprint) | Higher power margin but looser voltage accuracy; less suitable for precision references | Select when cost sensitivity outweighs regulation accuracy and board space is available |
| MMSZ5247B-7-F | ±5 % tolerance, 500 mW Ptot, SOD123 package (1.8 mm × 1.4 mm) | Higher power rating but larger size and no B2-series low-noise optimization | Choose for higher continuous dissipation needs where SC-76 footprint is not mandatory |
Compared with PZU22B2A,115, BZX84-C22,215 trades ±2 % accuracy and SC-76 miniaturization for broader availability and lower unit cost, while MMSZ5247B-7-F offers greater thermal headroom at the expense of noise performance and PCB area.
Availability
PZU22B2A,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive accessory protection circuits, and precision sensor biasing requiring stable component supply with guaranteed long-term sourcing.
Supply support for PZU22B2A,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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
PZUxBA series belongs to Nexperia's general-purpose Zener regulator product line, engineered specifically for compact, low-noise voltage reference and clamping in space-constrained, high-reliability SMD applications.
FAQ
What is the maximum continuous reverse current for PZU22B2A,115 at 25 °C?
The maximum continuous reverse current is determined by the 320 mW total power dissipation limit. At 22 V Zener voltage, this corresponds to approximately 14.5 mA (320 mW ÷ 22 V). Operation above this current requires derating per the thermal resistance curve in Figure 9 of the datasheet.
Does PZU22B2A,115 support wave soldering?
Yes-Nexperia provides dedicated wave soldering footprint guidelines (Figure 11) for SOD323, specifying 1.2 mm × 2.75 mm solder lands and preferred transport direction. Thermal profiling must respect peak temperature ≤260 °C and dwell time ≤5 s to avoid package damage.
How does the B2 tolerance series differ electrically from B1 or B3 in the PZUxBA family?
B2 denotes ±2 % tolerance with center-aligned min/max limits (e.g., PZU22B2A: 21.56–22.44 V). B1 offers tighter ±1 % (21.78–22.22 V) but fewer voltage points; B3 extends to ±3 % (21.34–22.66 V) for cost-sensitive applications-no electrical performance difference beyond tolerance band.
Can PZU22B2A,115 be used in place of a 22 V Zener with ±5 % tolerance?
Yes-pin-compatible and functionally identical, but with improved regulation accuracy. The tighter ±2 % tolerance reduces worst-case output variation by 60 % compared to ±5 % parts, directly improving system-level voltage stability without circuit redesign.
PZU22B2A,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):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 320 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 17 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
PZU22B2A,115 FAQ
1.How can I place an order for PZU22B2A,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU22B2A,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 PZU22B2A,115 reliable?
The price and inventory of PZU22B2A,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU22B2A,115 is usually 5 days.
3.What payment methods are accepted for PZU22B2A,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU22B2A,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU22B2A,115?
PZU22B2A,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU22B2A,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 PZU22B2A,115?
For technical support, including PZU22B2A,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU22B2A,115 requirements.
6.How does Aetrix verify that PZU22B2A,115 is sourced from the original manufacturer or authorized distributors?
All PZU22B2A,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 PZU22B2A,115 meets industry standards.
7.What is the process for return or replacement of PZU22B2A,115?
All PZU22B2A,115 units undergo pre-shipment inspection (PSI). If there is an issue with PZU22B2A,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 PZU22B2A,115 part is unused and in its original packaging.
Return procedure for PZU22B2A,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU22B2A,115 Tags
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