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1N4688/TR
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Product Detailed Parameters
- Description：DIODE ZENER 4.7V 500MW DO7
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：10 µA @ 3 V
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4688/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 4.7 V with a tolerance of ±5%. The device operates in the through-hole DO-7 (DO-204AA) package and supports a power dissipation of 500 mW. It functions within an extended temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 10 µA at 3 V and a test current of 50 µA.
Feature Summary
- Provides stable voltage regulation using a single Zener junction structure
- Operates reliably across an extended industrial temperature range up to 175°C
- Utilizes a standard through-hole DO-7 glass encapsulation for mounting
Applications
- Voltage reference circuits requiring precise potential levels
- Overvoltage protection stages in electronic systems
- General-purpose voltage regulation tasks
Procurement Notes
Verify the specific manufacturer source, as Central Semiconductor also produces this part number. Confirm RoHS compliance status and lead times directly with the supplier. Ensure the DO-7 package dimensions match your PCB footprint requirements before ordering.
Selection Notes
Select this component when a 4.7 V regulation point is required in high-temperature environments. The DO-7 package suits through-hole assembly processes. Compare leakage current specifications against other manufacturers if low standby current is critical for the design.
Part Context
This part belongs to the standard 1N468x series of silicon Zener diodes manufactured by Microchip Technology. These components are widely used in discrete semiconductor applications where reliable voltage clamping is necessary. The series offers various voltage options within the same physical package family.
Replacement Considerations
Cross-reference with 1N4688 variants from other manufacturers such as Central Semiconductor. Verify that substitute parts maintain the 4.7 V nominal voltage and 500 mW power rating. Ensure the replacement package matches the DO-7 form factor for mechanical compatibility.
