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Nexperia USA Inc. PDZ22B,135
- Part No.:
- PDZ22B,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ22B,135.pdf
- Description:
- DIODE ZENER 22V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,769
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Product details
Overview
PDZ22B,135 from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in compact SMD applications, with a nominal Zener voltage of 22 V (21.54–22.47 V at IZ = 5 mA), ±2 % tolerance, 100 Ω max differential resistance at 5 mA, 25 μA max reverse leakage at 17 V, and 400 mW total power dissipation on FR4 PCB. It operates as a precision shunt reference in bias networks, overvoltage clamping circuits, and low-current voltage stabilization stages.
For engineers reviewing the PDZ22B,135 datasheet, PDZ22B,135 pinout, PDZ22B,135 application, or PDZ22B,135 equivalent, key selection criteria include Zener voltage accuracy at 5 mA, thermal resistance (Rth(j-a) = 340 K/W), cathode-marked SOD323 footprint compatibility, and low-leakage behavior below 17 V reverse bias - critical for battery-powered sensor interfaces and rail supervision circuits.
Technical Context
This device functions as a two-terminal shunt regulator, maintaining stable reverse-biased conduction above its specified Zener breakdown voltage. Its hard breakdown knee and low dynamic impedance (≤100 Ω) ensure predictable regulation under low-current conditions (0.5–5 mA), while temperature coefficient of +17 to +18.4 mV/K supports predictable drift compensation in ambient-temperature-stable designs.
The SOD323 package enables high-density placement with minimal thermal mass; junction-to-ambient thermal resistance (340 K/W) and junction-to-solder-point resistance (130 K/W) define its derating behavior on standard FR4 PCBs, requiring power reduction above 25 °C ambient per the published derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 21.54–22.47 V at IZ = 5 mA - defines precise clamping threshold for 22 V nominal rail regulation |
| Differential Resistance rdif | ≤100 Ω at IZ = 5 mA - ensures minimal output voltage shift under load current variation |
| Reverse Leakage IR | ≤25 μA at VR = 17 V - guarantees low quiescent current in standby-biased protection circuits |
| Power Dissipation Ptot | 400 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC power handling before thermal derating |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or polarity indicator in dual-function layouts |
| Thermal Resistance Rth(j-a) | 340 K/W - determines required board copper area and airflow for safe operation above 25 °C ambient |
| Package | SOD323 (SC-76) - 1.35 mm × 0.85 mm footprint with cathode bar marking, compatible with standard reflow profiles |
Pinout & Package
SOD323 plastic surface-mounted package: 1.35 mm × 0.85 mm body, 0.4 mm lead pitch, cathode indicated by molded bar on top surface. Mounting requires standard reflow footprint (0.6 mm × 0.5 mm solder lands) per Figure 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; reverse-bias terminal where Zener conduction occurs |
| 2 | Anode (A) | Connected to reference ground or lower-potential rail; forward conduction path during polarity check |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on at rated VZ, reducing regulation hysteresis in feedback loops |
| Low leakage at sub-Zener voltage | 25 μA max at 17 V allows reliable operation in high-impedance bias networks without signal corruption |
| ±2 % voltage tolerance | Supports tight-tolerance analog references without post-production trimming in cost-sensitive designs |
| 130 K/W junction-to-solder-point Rth | Enables localized thermal management via direct thermal pad connection to inner copper layers |
| E24 voltage range coverage | 29 discrete values from 2.4 V to 36 V simplify BOM consolidation across multiple voltage rails |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Supervision |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 24-bit sigma-delta ADC bias in temperature transmitters. IC Role / Device Role / Timing Role: Shunt reference providing 22 V clamp to protect ADC input stage from transient overvoltage during field wiring faults. Use Value: 100 Ω dynamic impedance ensures <10 mV error shift across 0–1 mA load variation, preserving measurement linearity. |
Use Scenario: Monitoring VBUS rail integrity in USB-C sink controllers during 20 V PD negotiation. IC Role / Device Role / Timing Role: Reverse-biased Zener detecting overvoltage excursions beyond 22.5 V to trigger fault shutdown within 100 ns. Use Value: Hard breakdown knee and 25 μA leakage at 17 V prevent false triggering during normal 20 V ±5 % operation. |
| IoT Node Battery Voltage Monitor | Programmable Logic Controller Input Protection |
|
Use Scenario: Detecting end-of-life battery drop below 22 V in lithium-thionyl chloride primary cells powering remote telemetry units. IC Role / Device Role / Timing Role: Low-current Zener-based comparator threshold element in ultra-low-power wake-up circuitry. Use Value: 25 μA max leakage at 17 V draws <1 μA standby current, extending 10-year battery life by >3 %. |
Use Scenario: Clamping induced surges on 24 VDC digital input channels exposed to inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Fast-response shunt limiter absorbing 100 µs transients up to 1.3 A peak (IZSM) without degradation. Use Value: 400 mW Ptot rating and 340 K/W Rth(j-a) allow sustained 22 V clamping during repetitive 10 Hz surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B22,115 | Same SOD323 package, but ±5 % tolerance (20.9–23.1 V), higher leakage (50 μA at 17 V), 300 mW Ptot | Acceptable for non-critical biasing where 22 V accuracy is secondary to cost | Select when tighter voltage tolerance is not required and legacy BOM alignment is prioritized |
| MMSZ5247B-7-F | SOD123 package (larger footprint), ±5 % tolerance, 500 mW Ptot, 100 Ω rdif at 20 mA (not 5 mA) | Better power handling but less suitable for space-constrained IoT nodes due to 2.9 mm × 1.3 mm size | Choose for higher-power industrial inputs where thermal margin outweighs board area constraints |
Compared with BZX384-B22,115 and MMSZ5247B-7-F, PDZ22B,135 delivers superior voltage accuracy and lower leakage in the smallest footprint, making it optimal for precision, space-limited, and ultra-low-power regulation - whereas alternatives trade accuracy for cost or power capacity.
Availability
PDZ22B,135 is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery supervision, IoT battery monitoring, and PLC input protection requiring stable component supply and guaranteed long-term sourcing.
Supply support for PDZ22B,135 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 logic, discrete, and MOSFET devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The PDZ-B series targets cost-sensitive, space-constrained voltage regulation in consumer, industrial, and computing applications - emphasizing small-footprint reliability, E24 voltage coverage, and consistent Zener knee performance across ambient temperatures.
FAQ
What is the maximum reverse voltage before breakdown for PDZ22B,135?
The guaranteed minimum Zener voltage is 21.54 V at 5 mA test current, with typical value near 22 V and maximum 22.47 V. Breakdown begins gradually below this range, but stable regulation starts only above 21.54 V under specified test conditions - never apply sustained reverse bias exceeding 22.47 V without current limiting.
Can PDZ22B,135 be used in series for higher-voltage regulation?
No - PDZ22B,135 is a single-element Zener diode with no internal series configuration support. Cascading discrete Zeners introduces mismatched temperature coefficients and dynamic impedance variations that degrade regulation accuracy; use purpose-built multi-stage regulators or higher-voltage single devices instead.
Does the SOD323 package support automated optical inspection (AOI)?
Yes - the SOD323 package features a visible cathode bar marking and consistent 1.35 mm × 0.85 mm body dimensions, enabling reliable AOI detection of orientation and solder joint quality using standard 10–15 μm resolution systems calibrated for SC-76 footprints.
How does temperature affect the Zener voltage of PDZ22B,135?
PDZ22B,135 exhibits a positive temperature coefficient of +17.0 to +18.4 mV/K at 5 mA, meaning its Zener voltage increases ~17.7 mV per °C rise in junction temperature - a critical factor when designing for operation above 25 °C ambient or in thermally coupled layouts.
PDZ22B,135 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):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 400 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:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ22B,135 FAQ
1.How can I place an order for PDZ22B,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ22B,135 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 PDZ22B,135 reliable?
The price and inventory of PDZ22B,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ22B,135 is usually 5 days.
3.What payment methods are accepted for PDZ22B,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ22B,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ22B,135?
PDZ22B,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ22B,135 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 PDZ22B,135?
For technical support, including PDZ22B,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ22B,135 requirements.
6.How does Aetrix verify that PDZ22B,135 is sourced from the original manufacturer or authorized distributors?
All PDZ22B,135 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 PDZ22B,135 meets industry standards.
7.What is the process for return or replacement of PDZ22B,135?
All PDZ22B,135 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ22B,135, 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 PDZ22B,135 part is unused and in its original packaging.
Return procedure for PDZ22B,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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