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1N4740CP/TR8
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Product Detailed Parameters
- Description：DIODE ZENER 10V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：10 V
- Tolerance：±2%
- Power - Max：1 W
- Impedance (Max) (Zzt)：7 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 7.6 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 1N4740CP/TR8 is a silicon Zener diode with a nominal voltage of 10 V and a tight tolerance of ±2%. It operates in the DO-41 axial lead package, dissipating up to 1.0 W at 25°C. The device features a maximum dynamic impedance of 7 Ω and a reverse current of 10 μA at 5 V. It is supplied in tape and reel packaging.
Feature Summary
- Provides precise voltage regulation with a ±2% tolerance on the nominal Zener voltage.
- Features flexible axial-lead mounting terminals for standard through-hole applications.
- Constructed with a void-free transfer molded thermosetting epoxy body.
Applications
- Voltage regulation over a broad operating current and temperature range
- General purpose voltage reference circuits
Procurement Notes
Verify that the part number includes the 'C' suffix to confirm the specific 2% voltage tolerance requirement. Ensure the 'TR8' or 'TR' suffix matches the required tape and reel packaging format. Confirm RoHS compliance status if restricted materials are prohibited by checking the datasheet for the 'e3' designation.
Selection Notes
Select this component when a 10 V reference requires tighter stability than standard 5% parts. The plastic encapsulation offers lower thermal resistance compared to glass-body options. Verify that the 1.0 W power dissipation rating meets the thermal requirements of the target application environment.
Part Context
This device belongs to the 1N4728AP through 1N4764AP series of 1 Watt Zener diodes manufactured by Microsemi (now Microchip). The series covers voltages from 3.3 V to 100 V. The 'C' suffix specifically denotes the 2% tolerance variant within this family.
Replacement Considerations
Equivalent parts include the 1N4740A (5% tolerance) and 1N4740AE3 (RoHS compliant). Surface mount equivalents are available as SMAJ4740A or MLL4740A.
FAQ
What does the 'C' suffix indicate in the part number?
The 'C' suffix indicates a voltage tolerance of plus or minus 2% on the nominal Zener voltage.
Is the device sensitive to electrostatic discharge?
No, the device is nonsensitive to ESD per MIL-STD-750 Method 1020.
