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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 12V UMD4
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：2 Independent
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：-
- Power - Max：200 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：100 nA @ 9 V
- Operating Temperature：-55°C ~ 150°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：UMD4
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The UMZ12KTL is a Zener diode manufactured by ROHM Semiconductor, designed for voltage regulation applications. It features a typical Zener voltage of 12.0 V with a tolerance range of 11.54 V to 12.47 V at a test current of 5 mA. The device supports a maximum power dissipation of 200 mW and operates within a junction temperature range up to 150 °C. Storage temperatures span from -55 °C to 150 °C. It utilizes a UMD4 package (SOT-343/SC-82) with surface mount mounting style, containing four terminals in a dual-line common cathode configuration.
Feature Summary
- Dual-line common cathode configuration for efficient space utilization
- High reliability construction suitable for general electronic equipment
- Small mold type packaging for compact circuit board designs
Applications
- Voltage regulation circuits
- Reference voltage sources
- Transient voltage suppression
Procurement Notes
Verify the specific ordering suffix KTL against the manufacturer's current datasheet to confirm tape and reel quantity and RoHS compliance status. Ensure the component matches the required Zener voltage tolerance and power dissipation ratings for the target application before procurement.
Selection Notes
Select this component when a dual Zener configuration in a small SOT-343 package is required. Verify that the 200 mW power dissipation rating and 150 °C junction temperature limit meet the thermal requirements of the design environment.
Part Context
The UMZ12KTL belongs to ROHM's standard Zener diode family, characterized by silicon epitaxial planar structure. It is part of a series offering various voltage options in compact packages, targeting general-purpose electronics where space constraints and reliability are key design factors.
Replacement Considerations
Check for direct pin-compatible alternatives such as EDZV12B or similar dual Zener diodes in SOT-343 packages. Verify electrical parameter equivalence, specifically Zener voltage tolerance and power dissipation capabilities.
