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Diodes Incorporated BZT52C22-13-F
- Part No.:
- BZT52C22-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C22-13-F.pdf
- Description:
- DIODE ZENER 22V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,800
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Product details
Overview
BZT52C22-13-F from Diodes Incorporated is a surface-mount 22 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with 55 Ω maximum Zener impedance at 5 mA test current and ±5% voltage tolerance (20.8–23.3 V), used for precision voltage regulation and overvoltage protection in DC power rails.
For engineers reviewing the BZT52C22-13-F datasheet, BZT52C22-13-F pinout, BZT52C22-13-F application, or BZT52C22-13-F equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJA = 338 °C/W), reverse leakage (≤0.1 µA at 16.4 V), temperature coefficient (+15.4 mV/°C), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance across the 22 V nominal rating.
The device exhibits a positive temperature coefficient of +15.4 mV/°C and is characterized at 5 mA test current, with maximum reverse current limited to 0.1 µA at VR = 16.4 V - enabling low-power biasing and sensing applications where leakage must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal, 20.8–23.3 V range at 5 mA - defines regulated output voltage tolerance in shunt regulator circuits. |
| Power Dissipation (PD) | 370 mW at TA = +25°C - sets maximum continuous power handling on standard FR-4 PCB with 1-inch copper pad. |
| Zener Impedance (ZZT) | 55 Ω max at 5 mA, 1 kHz - determines regulation stiffness and AC ripple rejection capability. |
| Reverse Leakage (IR) | 0.1 µA max at VR = 16.4 V - ensures minimal standby current in battery-powered voltage monitor designs. |
| Temperature Coefficient | +15.4 mV/°C - quantifies voltage drift per degree Celsius, critical for temperature-stable references. |
| Package | SOD123 - surface-mount outline with cathode band marking, compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SOD123 molded plastic case, 0.010 g weight, UL 94V-0 flammability rating, matte tin-plated alloy 42 leadframe, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated rail; forms reference ground return path in shunt configuration. |
| Cathode | Zener breakdown terminal / voltage regulation node | Connected to higher-potential rail; clamps voltage to 22 V when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and low parameter spread across production lots. |
| AEC-Q101 qualification | Validates reliability for automotive electronics including infotainment power supplies and sensor bias networks. |
| Lead-free & RoHS-compliant | Meets EU Directive 2011/65/EU and halogen/antimony-free "Green" requirements (<900 ppm Br/Cl, <1000 ppm Sb). |
| Moisture sensitivity Level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing complexity and cost. |
Applications
| Power Supply Voltage Clamp | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Clamping transient overvoltage on 24 V DC input rail of industrial PLC I/O module. IC Role / Device Role / Timing Role: Shunt regulator providing fail-safe voltage limiting to protect downstream LDOs and logic ICs. Use Value: Limits rail to ≤23.3 V during surge events, preventing damage to 20 V-rated components without requiring active control circuitry. |
Use Scenario: Generating precise reset threshold for 3.3 V microcontroller operating from a 5 V supply. IC Role / Device Role / Timing Role: Reference element in RC-based reset generator, defining trip point via resistor divider. Use Value: Enables accurate 2.2 V reset threshold (10% below 22 V Zener) with <±1% drift over -40°C to +125°C due to matched TC. |
| Automotive Sensor Bias Network | USB-C Power Negotiation Monitor |
Use Scenario: Providing stable bias voltage to analog output sensor in engine control unit exposed to 12 V battery fluctuations. IC Role / Device Role / Timing Role: Precision voltage reference for op-amp signal conditioning stage. Use Value: Delivers 22 V reference with ≤0.5% variation over temperature, supporting 12-bit ADC linearity in harsh under-hood environments. |
Use Scenario: Monitoring CC line voltage during USB PD negotiation to detect source capability handshake. IC Role / Device Role / Timing Role: Overvoltage protector for CC line interface IC against ESD and misconnection events. Use Value: Clamps CC line to safe level before 24 V transients reach PD controller, preserving communication integrity during hot-plug cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5248BS-7-F | Same 22 V rating, SOT-323 package, 350 mW PD, RθJA = 300 °C/W - smaller footprint but lower power handling. | Preferred for space-constrained portable devices; unsuitable for >250 mW continuous dissipation. | Select when board area is critical and thermal margin allows reduced power derating. |
| 1N4745A | Through-hole DO-41 package, 1 W PD, 20–24 V range, RθJA ≈ 500 °C/W - higher power but no SMT compatibility. | Used in legacy prototyping or high-reliability linear power supplies where manual assembly is acceptable. | Choose only for through-hole designs requiring >500 mW or where rework accessibility is prioritized over automation. |
Compared with MMBZ5248BS-7-F and 1N4745A, BZT52C22-13-F offers optimal balance of SMT manufacturability, AEC-Q101 compliance, and 370 mW usable power on standard PCB layouts - making it the preferred choice for volume automotive and industrial control applications.
Availability
BZT52C22-13-F is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, and consumer DC-DC converter feedback networks requiring stable component supply and full traceability.
Supply support for BZT52C22-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
BZT52C22-13-F belongs to the BZT52C series of general-purpose Zener diodes designed for medium-current voltage regulation and overvoltage protection in cost-sensitive, high-volume applications.
FAQ
What is the maximum reverse voltage (VR) at which BZT52C22-13-F guarantees IR ≤ 0.1 µA?
The datasheet specifies IR ≤ 0.1 µA at VR = 16.4 V. This value is derived from the 75% rule for Zener diodes: 0.75 × 22 V = 16.5 V, rounded to 16.4 V in the Electrical Characteristics table. It defines the maximum reverse bias before significant leakage begins, critical for low-power monitoring circuits.
Is BZT52C22-13-F suitable for use in automotive infotainment systems?
Yes - it is qualified to AEC-Q101 standards and rated for operation from –65°C to +150°C. Its SOD123 package supports automated assembly, and its 22 V Zener voltage provides robust clamping for 12 V/24 V system transients common in infotainment power domains.
How does the 338 °C/W thermal resistance affect PCB layout design?
RθJA = 338 °C/W means a 370 mW dissipation at +25°C ambient raises junction temperature by ~124°C - reaching ~149°C, near the 150°C limit. To ensure reliability, use ≥1-inch² copper pour on the cathode pad and minimize trace length to reduce thermal resistance in production layouts.
Does the "-13-F" suffix indicate automotive qualification?
No - "-13-F" denotes commercial-grade packaging: 10,000 units per tape-and-reel, lead-free and RoHS-compliant. Automotive versions use "Q-13-F" (e.g., BZT52C22Q-13-F). The base part BZT52C22-13-F is AEC-Q101 qualified but shipped in commercial packaging unless ordered with "Q" prefix.
BZT52C22-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 15.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52C22-13-F FAQ
1.How can I place an order for BZT52C22-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C22-13-F 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 BZT52C22-13-F reliable?
The price and inventory of BZT52C22-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C22-13-F is usually 5 days.
3.What payment methods are accepted for BZT52C22-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C22-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C22-13-F?
BZT52C22-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C22-13-F 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 BZT52C22-13-F?
For technical support, including BZT52C22-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C22-13-F requirements.
6.How does Aetrix verify that BZT52C22-13-F is sourced from the original manufacturer or authorized distributors?
All BZT52C22-13-F 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 BZT52C22-13-F meets industry standards.
7.What is the process for return or replacement of BZT52C22-13-F?
All BZT52C22-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C22-13-F, 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 BZT52C22-13-F part is unused and in its original packaging.
Return procedure for BZT52C22-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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