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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 6.8V SMD3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 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：SMD3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The STZ6.8TT146 is a Zener diode manufactured by ROHM Semiconductor, designed for voltage regulation and transient protection applications. It features a nominal Zener voltage of 6.8 V with a tight tolerance range, typically between 6.47 V and 7.14 V. The device operates within a power dissipation limit of 200 mW and supports a maximum junction temperature of 150 °C. Packaged in the SSD3 (SOT-23) surface-mount format, it offers a compact footprint suitable for space-constrained designs. The component is AEC-Q101 qualified, ensuring reliability for automotive environments.
Feature Summary
- AEC-Q101 qualified for automotive grade reliability
- Low capacitance design for signal integrity preservation
- Compact SSD3 surface-mount package
Applications
- ESD protection for high-speed data lines
- Voltage reference circuits
- Transient voltage suppression in automotive modules
Procurement Notes
Verify the specific suffix 'T146' against the official ROHM datasheet to confirm tape-and-reel quantity and packaging details. Ensure the ordering part number matches the required automotive qualification status. Cross-reference the SSD3 package dimensions with PCB layout requirements before finalizing procurement.
Selection Notes
Select this component when a low-capacitance Zener diode is required for ESD protection in high-speed interfaces. Verify that the 6.8 V breakdown voltage aligns with the circuit's clamping requirements. Consider the 200 mW power dissipation limit under worst-case thermal conditions. Confirm compatibility with automated assembly processes using the standard SSD3 footprint.
Part Context
This part belongs to ROHM’s line of low-capacitance Zener diodes optimized for electrostatic discharge protection. It complements other devices in the STZ series, offering a balance of fast response time and minimal signal distortion. The SSD3 package allows for high-density mounting on printed circuit boards, supporting modern miniaturization trends in consumer and automotive electronics.
Replacement Considerations
The MMBZ6V8ALYFH is listed as a similar specification alternative. Verify pinout compatibility and exact Zener voltage tolerances before substitution. Ensure the replacement meets the same AEC-Q101 automotive qualification if required for the application.
