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Nexperia USA Inc. BZT52-C22J
- Part No.:
- BZT52-C22J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C22J.pdf
- Description:
- DIODE ZENER 22.05V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
BZT52-C22J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 22 V nominal Zener voltage at 5 mA, 220 Ω maximum differential resistance, and 590 mW total power dissipation at Tamb ≤ 25 °C; used for precision voltage reference and low-power regulation in sensor signal conditioning circuits.
For engineers reviewing the BZT52-C22J datasheet, BZT52-C22J pinout, BZT52-C22J application, or BZT52-C22J equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (210 K/W junction-to-solder-point), reverse current (≤0.05 μA at VR = 17.6 V), and SOD123 surface-mount compatibility with standard FR4 PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its 22 V nominal Zener voltage is specified at IZ = 5 mA, with temperature coefficient of +15.4 mV/K and typical reverse current of 0.05 μA at VR = 17.6 V.
The device exhibits low dynamic impedance (220 Ω max) and fast response to transient overvoltage events, supported by non-repetitive peak reverse power dissipation of 40 W (tp = 100 μs). It is designed for operation within -55 °C to +150 °C ambient and junction temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.8 V to 23.3 V at IZ = 5 mA - defines regulated output voltage window under nominal bias |
| Differential Resistance (rdif) | 220 Ω max - determines output voltage stability against current variation |
| Reverse Current (IR) | ≤0.05 μA at VR = 17.6 V - ensures minimal leakage in standby regulation |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance (Rth(j-sp)) | 210 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal design |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - defines conduction loss when used in forward-biased protection paths |
| Junction Temperature (Tj) | 150 °C max - constrains maximum allowable operating temperature for reliability |
Pinout & Package
The BZT52-C22J is housed in a plastic SOD123 surface-mount package measuring 2.80 mm × 1.70 mm × 1.30 mm, with cathode marked by a visible band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking band identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-bias polarity required for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables tighter regulation accuracy than ±2 % B-series variants in cost-sensitive applications |
| 220 Ω max differential resistance | Minimizes output voltage drift under ±1 mA load current change |
| SOD123 package footprint | Supports high-density PCB layout with standardized reflow soldering profile per JEDEC J-STD-020 |
| 150 °C maximum junction temperature | Permits reliable operation in industrial environments without derating below 100 °C ambient |
| 0.05 μA max reverse current at VR = 17.6 V | Reduces quiescent power loss in battery-powered voltage reference circuits |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Stabilizing reference voltage for analog front-end amplifiers in temperature and pressure transducers. IC Role / Device Role / Timing Role: Zener voltage reference providing 22 V rail for op-amp biasing and ADC reference scaling. Use Value: Tight 20.8–23.3 V regulation window ensures consistent gain calibration across temperature (-40 °C to +85 °C). |
Use Scenario: Clamping induced transients on USB VBUS line during hot-plug events. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as shunt protector to limit voltage excursion above 23.3 V. Use Value: 40 W non-repetitive peak power rating absorbs 100 μs surges without degradation. |
| Low-Power IoT Node Voltage Reference | Programmable Logic Supply Rail Clamp |
|
Use Scenario: Generating stable bias for ultra-low-power microcontroller reset circuitry in wireless sensor nodes. IC Role / Device Role / Timing Role: Zener diode supplying regulated 22 V to RC-based reset timer network. Use Value: 0.05 μA reverse leakage preserves battery life in sleep mode (typical 10-year shelf life). |
Use Scenario: Preventing FPGA I/O bank damage from accidental 24 V misconnection in industrial PLC modules. IC Role / Device Role / Timing Role: Shunt clamp limiting I/O supply rail to ≤23.3 V during fault conditions. Use Value: 210 K/W junction-to-solder-point thermal resistance enables rapid heat dissipation into copper pour. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-B22 | ±2 % tolerance (21.6–22.4 V), 150 Ω max rdif, same SOD123 package | Higher regulation precision required in metrology-grade references | Select when tighter voltage control outweighs cost sensitivity |
| MMBZ5248B | 22 V nominal, ±5 %, SOT-23 package, 200 Ω max rdif, 350 mW Ptot | Higher board density needed; lower power handling acceptable | Choose for space-constrained designs where 350 mW suffices |
Compared with BZT52-C22J, BZT52-B22 offers tighter tolerance but higher unit cost, while MMBZ5248B reduces footprint at the expense of 40 % lower power dissipation and different thermal interface behavior.
Availability
BZT52-C22J is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB power protection circuits, and low-power IoT node voltage references requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52-C22J 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 and miniaturization.
The BZT52 series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-effective voltage regulation and clamping in consumer, industrial, and computing applications.
FAQ
What is the Zener voltage tolerance for BZT52-C22J?
The BZT52-C22J has a ±5 % Zener voltage tolerance, resulting in a guaranteed working range of 20.8 V to 23.3 V at IZ = 5 mA. This tolerance is confirmed in Table 8 of the official Nexperia datasheet Rev. 2 (2025), and applies to all C-series variants in the BZT52 family.
Can BZT52-C22J be used in automotive applications?
No - BZT52-C22J is explicitly designated as non-automotive qualified per Nexperia's legal disclaimers in Section 14. It lacks AEC-Q200 qualification, automotive-grade screening, and extended temperature validation beyond 150 °C junction limit. Automotive alternatives must be selected from Nexperia's -Q qualified portfolio.
What is the maximum forward current rating?
The absolute maximum forward current for BZT52-C22J is 250 mA, as specified in Table 5 (Limiting Values) of the datasheet. This rating assumes pulse conditions (tp ≤ 300 μs, duty cycle ≤ 2 %); continuous forward conduction is not recommended due to lack of sustained IF derating data.
How does thermal resistance affect PCB layout?
BZT52-C22J's Rth(j-sp) = 210 K/W requires a minimum 1 cm² cathode-side copper pad (tin-plated, single-sided FR4) to achieve rated 590 mW dissipation. Reducing pad area increases junction temperature proportionally - e.g., halving pad size raises thermal resistance to ~300 K/W, necessitating ~30 % power derating at 25 °C ambient.
BZT52-C22J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22.05 V
- Tolerance:
- ±5.7%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C22J FAQ
1.How can I place an order for BZT52-C22J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C22J 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 BZT52-C22J reliable?
The price and inventory of BZT52-C22J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C22J is usually 5 days.
3.What payment methods are accepted for BZT52-C22J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C22J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C22J?
BZT52-C22J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C22J 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 BZT52-C22J?
For technical support, including BZT52-C22J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C22J requirements.
6.How does Aetrix verify that BZT52-C22J is sourced from the original manufacturer or authorized distributors?
All BZT52-C22J 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 BZT52-C22J meets industry standards.
7.What is the process for return or replacement of BZT52-C22J?
All BZT52-C22J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C22J, 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 BZT52-C22J part is unused and in its original packaging.
Return procedure for BZT52-C22J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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