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Product Detailed Parameters
- Description:DIODE ZENER 33V 1W DO41
- Series:1N4728A
- Mfr:Panjit International Inc.
- Package:Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz):33 V
- Tolerance:±5%
- Power - Max:1 W
- Impedance (Max) (Zzt):45 Ohms
- Current - Reverse Leakage @ Vr:100 nA @ 25.1 V
- Operating Temperature:-55°C ~ 150°C (TJ)
- Mounting Type:Through Hole
- Package / Case:DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If:-
- Grade:-
- Qualification:-
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Overview
The Panjit International Inc. 1N4752A_R2_00001 is a silicon zener diode belonging to the 1N4728A series, designed for voltage regulation applications. It features a nominal zener voltage of 33V with a tolerance range of 31.35V to 34.65V at a test current (IZT) of 7.5mA. The device supports a maximum power dissipation of 1W and exhibits a maximum zener impedance (ZZT) of 45Ω at IZT. Maximum leakage current is specified as 25.1µA at VR = 25.1V. It utilizes a molded plastic DO-41 axial package.
Feature Summary
- Plastic package meets UL 94V-O flammability classification
- Terminals are solderable per MIL-STD-750 Method 2026
- Compliant with EU RoHS 2.0 lead-free standards
Applications
- Voltage regulation circuits
- Voltage reference applications
- Surge protection devices
Procurement Notes
Verify the specific ordering suffix matches the required packing type, such as T/R for 5K per 13-inch paper reel or B for 1K per bulk box. Confirm that the component complies with RoHS 2.0 requirements and check for any product change notifications (PCN) regarding manufacturing updates before finalizing procurement specifications.
Selection Notes
Select this component based on the required 33V nominal breakdown voltage and 1W power rating. Ensure the circuit design accommodates the specified maximum dynamic impedance of 45Ω and the operating temperature range from -55°C to +150°C junction temperature. Verify that the DO-41 axial leaded package fits the available board space and mounting constraints.
Part Context
This part belongs to the 1N4728A series of 1 Watt silicon zener diodes manufactured by Panjit International Inc. The series covers a wide voltage range from 3.3V to 68V in the DO-41 package. The 1N4752A specifically targets the 33V segment, providing standard voltage regulation capabilities for general-purpose electronic circuits requiring stable reference voltages.
Replacement Considerations
Cross-reference with other manufacturers' 1N4752A equivalents to ensure pinout compatibility and electrical parameter alignment. Verify that substitute components meet the same 1W power dissipation and DO-41 package dimensions.
FAQ
What is the maximum zener impedance for the 1N4752A?
The maximum zener impedance (ZZT) is 45Ω when measured at the test current (IZT) of 7.5mA.
What is the operating temperature range for this diode?
The storage and operating junction temperature range is from -55°C to +150°C.
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