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Product Detailed Parameters
- Description：TRANS 2NPN DUAL 120V 500MA SM8
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Transistor Type：2 NPN (Dual)
- Current - Collector (Ic) (Max)：500mA
- Voltage - Collector Emitter Breakdown (Max)：120V
- Vce Saturation (Max) @ Ib, Ic：500mV @ 5mA, 400mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：400 @ 200mA, 2V
- Power - Max：2.75W
- Frequency - Transition：130MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-223-8
- Supplier Device Package：SM8
- Grade：-
- Qualification：-
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Overview
The ZDT694TC is a dual NPN medium power high gain transistor manufactured by Diodes Incorporated, housed in an SM-8 package. It features a collector-emitter breakdown voltage (BVCEO) of 120V and supports a continuous collector current (IC) of 0.5A. The device provides a DC current transfer static ratio (hFE) exceeding 400 at 200mA. Electrical characteristics include a collector-base breakdown voltage of 120V, emitter-base breakdown voltage of 7V, and a transitional frequency (fT) of 130MHz. Thermal resistance from junction to ambient is 55.6°C/W for single die operation.
Feature Summary
- Dual NPN configuration within a compact SM-8 surface mount package
- High gain performance with hFE greater than 400 at 200mA
- Robust voltage handling capabilities with 120V collector-emitter breakdown
- RoHS compliant and halogen-free construction
Applications
- General purpose switching applications requiring medium power handling
- Automotive electronics utilizing AEC-Q101 qualified variants
- Driver circuits benefiting from high current gain characteristics
Procurement Notes
Verify the specific ordering suffix against official Diodes Incorporated documentation to confirm packaging details such as reel size or tape width. Confirm RoHS compliance status and environmental declarations directly with the manufacturer. Ensure that the selected variant meets all applicable automotive qualification standards if intended for IATF 16949 certified facility production environments.
Selection Notes
Evaluate thermal management requirements based on the specified junction-to-ambient thermal resistance values under steady-state conditions. Consider the peak pulse current limitations when designing for transient load scenarios. Verify that the operating temperature range aligns with the system's environmental constraints and that ESD protection measures meet the required JEDEC classification levels.
Part Context
This component belongs to the ZDT series of dual transistors offered by Diodes Incorporated. The SM-8 package provides a compact footprint suitable for space-constrained printed circuit board layouts. The datasheet indicates this part is not recommended for new designs; engineers should consult the manufacturer for updated alternatives or legacy support options.
Replacement Considerations
Consult Diodes Incorporated for officially confirmed substitute part numbers. Do not assume functional equivalence with other dual NPN transistors without verifying pinout compatibility, electrical ratings, and package dimensions against the original specifications.
