ChipApex | Global Electronic Components Supplier
1N4732UR-1
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DIODE ZENER 4.7V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：8 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 1 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF (Glass)
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
Download product information
Overview
The 1N4732UR-1 is a high-reliability Zener diode manufactured by Microchip Technology. It features a nominal voltage of 4.7 V with a tolerance of ±10% and a power dissipation rating of 1 W. The device utilizes silicon technology and is housed in a DO-213AB (MELF) glass package. It operates unidirectionally and supports a minimum operating temperature of -65°C.
Feature Summary
- Hermetically sealed glass MELF construction for environmental protection
- High reliability design suitable for demanding applications
- Surface mount DO-213AB package format
Applications
- Voltage regulation in high-reliability circuits
- Reference voltage sources in aerospace systems
- Overvoltage protection in military electronics
Procurement Notes
Verify the specific suffix UR-1 to confirm the hermetic seal and high-reliability grade, as standard commercial variants lack these specifications. Confirm RoHS compliance status if required by project constraints, noting that some hermetic variants may differ from lead-free standards. Ensure the DO-213AB footprint matches the PCB design. Check current availability as high-reliability components often have restricted stock or longer lead times compared to general-purpose parts.
Selection Notes
Select this component when a stable 4.7 V reference is required in harsh environments. The DO-213AB package offers robust surface-mount integration. Consider the 1 W power rating for thermal management needs. Verify that the ±10% tolerance meets circuit precision requirements. This part is distinct from non-hermetic versions like the 1N4732A series.
Part Context
This part belongs to Microchip's high-reliability Zener diode portfolio, derived from legacy MIL-SPEC designs. It is functionally similar to the 1N4732DUR but specified with 10% tolerance rather than 1%. The UR-1 designation indicates the specific hermetic MELF configuration.
Replacement Considerations
The MQ1N4732UR-1E3 is a documented equivalent offering identical electrical characteristics and hermetic sealing. Standard commercial equivalents like the 1N4732A lack the hermetic seal and high-reliability certification.
