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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 6.8V UMD5
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：2 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：6.8 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：40 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 3.5 V
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：UMD5
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The UMZ6.8ENTR is a dual common anode Zener diode manufactured by ROHM Semiconductor, housed in a compact SOT-353-5 surface-mount package measuring 2 mm x 1.25 mm x 0.9 mm. It features a nominal Zener voltage of 6.8 V with a 5% tolerance and a maximum power dissipation of 200 mW. The device operates within a temperature range of -55 °C to +150 °C, exhibiting a maximum reverse leakage current of 500 nA and a Zener impedance of 40 Ohms at a test current of 5 mA.
Feature Summary
- Dual common anode configuration integrates two independent Zener elements into a single five-pin package for space-constrained designs.
- High thermal stability supports operation up to +150 °C junction temperature, suitable for demanding environments.
- Low leakage current specification ensures minimal power loss and high precision in voltage reference applications.
Applications
- Voltage clamping and protection in portable electronic devices
- Reference voltage generation in analog signal processing circuits
- Surge suppression in communication equipment input stages
Procurement Notes
Verify the complete part number including the suffix to ensure correct packaging and tape specifications. Confirm RoHS compliance status through official datasheets prior to integration. Cross-reference pinout diagrams with PCB footprint libraries to prevent orientation errors during assembly. Validate thermal management requirements against the 200 mW dissipation limit under worst-case operating conditions.
Selection Notes
Select this component when a dual Zener solution is required in a minimal footprint. Compare the 40 Ohm impedance against circuit sensitivity requirements. Ensure the 6.8 V breakdown aligns with target regulation levels. Consider the SOT-353-5 package constraints for automated placement equipment compatibility.
Part Context
This component belongs to the UMZ series of dual Zener diodes from ROHM. It shares the UMD/SOT-353 form factor with variants offering different voltage ratings. The series targets applications requiring multiple voltage references or protection channels within limited board area.
Replacement Considerations
Check for direct substitutes such as UMZ6.8EN or other ROHM UMD-series parts with identical electrical characteristics. Verify pin compatibility before replacing with generic equivalents.
FAQ
What is the internal configuration of the UMZ6.8ENTR?
It contains two Zener diodes connected with a common anode terminal.
Does the UMZ6.8ENTR meet automotive standards?
Public documentation does not confirm AEC-Q101 qualification for this specific part number.
