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Product Detailed Parameters
- Description：TRANS 2NPN DARL 120V 1A SM8
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Transistor Type：2 NPN Darlington (Dual)
- Current - Collector (Ic) (Max)：1A
- Voltage - Collector Emitter Breakdown (Max)：120V
- Vce Saturation (Max) @ Ib, Ic：1.5V @ 1mA, 1A
- Current - Collector Cutoff (Max)：10µA
- DC Current Gain (hFE) (Min) @ Ic, Vce：2000 @ 1A, 5V
- Power - Max：2.75W
- Frequency - Transition：150MHz
- 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 ZDT605TA is a dual NPN medium power Darlington transistor manufactured by Diodes Incorporated. It features an SM-8 (SOT-223) surface-mount package with eight leads. The device supports a continuous collector current of 1A and withstands a collector-emitter voltage of 120V. Total power dissipation reaches 2.75W when both dies operate equally at 25°C ambient temperature. The transition frequency is specified at 150MHz, and the static forward current transfer ratio ranges from 2K to 5K depending on collector current conditions.
Feature Summary
- Dual NPN Darlington configuration providing high current gain for efficient switching applications
- Robust thermal performance with defined derating characteristics above 25°C ambient temperature
- Surface-mount SM-8 packaging designed for automated assembly processes
Applications
- High-current switching circuits requiring medium power handling capabilities
- Driver stages in relay or motor control systems
- Power management modules utilizing surface-mount technology
Procurement Notes
Verify component authenticity through official manufacturer channels or authorized distributors. Confirm datasheet revision status matches design requirements. Ensure storage conditions adhere to moisture sensitivity level specifications. Validate marking codes against official part identification standards before integration into production workflows.
Selection Notes
Evaluate thermal resistance values relative to PCB copper area constraints during layout design. Consider saturation voltage variations across different collector current levels for efficiency optimization. Assess operating temperature range compatibility with target environmental conditions. Verify pinout alignment with existing footprint designs to prevent assembly errors.
Part Context
This component belongs to the ZDT605 series of dual NPN Darlington transistors. The 'T' suffix typically indicates tape and reel packaging configuration, while 'ZDT605TC' represents cut tape variants. All variants share identical electrical characteristics and physical dimensions within the SM-8 package family.
Replacement Considerations
Direct substitutes include ZDT605TC for cut tape packaging requirements. Cross-reference thermal dissipation limits and pin configurations when evaluating alternative manufacturers' equivalents. Verify that replacement components maintain compatible breakdown voltages and current ratings for circuit integrity.
