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1N4756CP/TR12
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Product Detailed Parameters
- Description：DIODE ZENER 47V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±2%
- Power - Max：1 W
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 35.8 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4756CP/TR12 is a silicon 1.0-watt Zener diode housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 47 V and a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 80 Ohms at a test current of 5.5 mA. It is supplied in tape and reel packaging, as denoted by the 'TR12' suffix.
Feature Summary
- Provides precise voltage regulation with a standard ±2% tolerance on nominal Zener voltage.
- Features flexible axial-lead mounting terminals suitable for through-hole applications.
- Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards.
- Moisture classification is Level 1 per IPC/JEDEC J-STD-020B, requiring no dry pack.
Applications
- Voltage regulation over broad operating current and temperature ranges
- Reference voltage sources in electronic circuits
- Protection against voltage transients
Procurement Notes
Verify that the ordering suffix matches the required specifications. The 'P' suffix confirms plastic construction, while 'C' indicates the specific ±2% voltage tolerance. Ensure the 'TR12' designation aligns with the necessary tape and reel packaging format for automated assembly processes.
Selection Notes
Select this component when a 47 V reference with high precision is required. The plastic encapsulation offers lower thermal resistance compared to glass-body options. Verify that the application environment remains within the specified -65°C to +150°C operating temperature range to ensure reliable performance.
Part Context
This part belongs to the 1N4728AP through 1N4764AP series of 1.0-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a voltage selection from 3.3 to 100 volts. The 1N4756 variant specifically targets the 47-volt regulation segment within this extensive lineup.
Replacement Considerations
Surface mount equivalents are available as SMAJ4756A or MLL4756A. Glass-body versions exist under the same JEDEC numbering but utilize different packaging materials.
