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Product Detailed Parameters
- Description：TRANS 2PNP DARL 120V 1A SM8
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Transistor Type：2 PNP Darlington (Dual)
- Current - Collector (Ic) (Max)：1A
- Voltage - Collector Emitter Breakdown (Max)：120V
- Vce Saturation (Max) @ Ib, Ic：2.5V @ 2mA, 2A
- Current - Collector Cutoff (Max)：10µA
- DC Current Gain (hFE) (Min) @ Ic, Vce：3000 @ 1A, 5V
- Power - Max：2.75W
- Frequency - Transition：160MHz
- 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 ZDT705TA is a dual PNP medium power Darlington transistor manufactured by Diodes Incorporated. It features two independent PNP Darlington pairs within an SM-8 (SOT-223) package. The device supports a continuous collector current of -1 A and withstands a collector-emitter voltage of -120 V. Key electrical parameters include a transition frequency of 160 MHz, static forward current transfer ratios ranging from 2K to 30K depending on operating conditions, and a total power dissipation capability of up to 2.75 W when both dies are active. The component operates across a temperature range of -55°C to +150°C.
Feature Summary
- Dual configuration containing two independent PNP Darlington transistor pairs for compact circuit integration.
- High current handling capability with a continuous collector current rating of 1 A per die.
- Robust voltage tolerance supporting collector-emitter breakdown voltages up to 120 V.
Applications
- High-side switching applications requiring medium power output.
- Driver stages in motor control circuits.
- Power management systems utilizing high-gain amplification.
Procurement Notes
Verify the specific suffix 'TA' against the manufacturer's official documentation to confirm packaging details and reel specifications. Ensure that the SM-8 footprint matches the target PCB design constraints. Cross-reference thermal resistance values with actual board copper area requirements to maintain safe operating temperatures during operation.
Selection Notes
Select this component when a dual PNP Darlington configuration is required within a single surface-mount package. Consider the 160 MHz transition frequency for moderate-speed switching applications. Evaluate the thermal characteristics carefully, as power dissipation depends significantly on whether one or both internal dies are utilized simultaneously.
Part Context
The ZDT705 belongs to the SM-8 series of dual medium power Darlington transistors produced by Diodes Incorporated. This series provides integrated solutions for applications needing multiple high-gain switching elements in a compact form factor. The device utilizes the SOT-223 outline to facilitate efficient heat dissipation while maintaining a small board footprint.
Replacement Considerations
Public confirmed substitute part numbers: FCX705TA
FAQ
What is the maximum collector-emitter voltage rating?
The maximum collector-emitter voltage (VCEO) is rated at -120 V.
How does the power dissipation change based on die usage?
Total power dissipation is 2.25 W if any single die is on, and increases to 2.75 W if both dies are on equally.
What is the typical transition frequency?
The transition frequency (fT) is typically 160 MHz under conditions of IC=-100mA and VCE=-10V.
