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1N4737AG
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Product Detailed Parameters
- Description：DIODE ZENER 7.5V 1W DO204AL
- Series：-
- Mfr：Microsemi Corporation
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：7.5 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：4 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 5 V
- Operating Temperature：-65°C ~ 175°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 Microsemi Corporation 1N4737AG is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 7.5V with a tight tolerance of 2%. The device is rated for a power dissipation of 1W and utilizes a hermetically sealed glass encapsulation in the DO-204AL package. This construction provides isolation and supports high-temperature operation, making it suitable for demanding environments requiring reliable voltage reference or protection.
Feature Summary
- Hermetically sealed glass encapsulation ensures environmental stability
- Tight voltage tolerance for precise regulation requirements
- High thermal resistance capability within standard axial leaded package
Applications
- Precision voltage regulation circuits
- Overvoltage protection systems
- Reference voltage generation in test equipment
Procurement Notes
Verify that the specific order includes the 'G' suffix to confirm the hermetically sealed glass variant rather than the plastic equivalent. Confirm RoHS compliance status via the 'e3' suffix if required by project specifications. Ensure the manufacturer designation matches Microsemi Corporation to guarantee the specified 2% tolerance and hermetic sealing characteristics are met.
Selection Notes
Select this component when strict voltage accuracy and environmental sealing are critical. The 2% tolerance distinguishes it from standard 5% variants. Consider the hermetic seal for harsh conditions where moisture ingress must be prevented. Verify that the 1W power rating aligns with the circuit's thermal dissipation needs.
Part Context
This part belongs to the 1N47xx series of 1-watt Zener diodes produced by Microsemi. The 'A' indicates the standard JEDEC voltage code, while the 'G' specifies the glass body construction. It serves as a robust alternative to plastic-encapsulated versions for applications requiring higher reliability and temperature performance.
Replacement Considerations
Direct substitutes include other manufacturers' 1N4737AG parts meeting the same electrical and mechanical specifications. Cross-reference with 1N4737A-G variants from other suppliers, ensuring the hermetic seal and 2% tolerance are explicitly confirmed.
