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Product Detailed Parameters
- Description：TRANS NPN/PNP DARL 120V 1A SM8
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Transistor Type：1 NPN, 1 PNP 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 ZDT6705TC is a complementary medium power Darlington transistor array manufactured by Diodes Incorporated, housed in an SM-8 (SOT-223-8) surface-mount package. It integrates one NPN and one PNP Darlington pair within a single device. The NPN section supports a collector-emitter voltage of 120V and a continuous collector current of 1A, while the PNP section provides matching -120V and -1A ratings. Total power dissipation reaches 2.75W when both dies are active equally at 25°C ambient temperature. The transition frequency is specified at 150MHz for the NPN and 160MHz for the PNP configuration.
Feature Summary
- Complementary NPN/PNP Darlington architecture integrated into a single compact surface-mount package
- High voltage handling capability with 120V collector-emitter breakdown ratings for both polarities
- Medium power operation supporting up to 1A continuous collector current per channel
- Optimized thermal performance with low junction-to-ambient resistance for PCB mounting
Applications
- Motor control circuits requiring complementary drive stages
- Power switching applications utilizing high-voltage Darlington configurations
- Interface drivers for relay or solenoid actuation
- Audio amplifier output stages
Procurement Notes
Verify component authenticity through authorized Diodes Incorporated distribution channels. Confirm RoHS3 compliance status prior to integration. Ensure storage conditions maintain moisture sensitivity level 1 integrity. Validate datasheet revision against manufacturing date code to confirm electrical parameter consistency.
Selection Notes
Select this component for designs requiring matched complementary Darlington pairs in a space-constrained footprint. Evaluate thermal derating curves if operating above 25°C ambient. Consider the 1.5V saturation voltage at full load when calculating power loss. Verify that the 120V rating exceeds peak transient voltages in the target application circuit.
Part Context
This part belongs to the ZDT6705 series of complementary medium power Darlington transistors. The 'TC' suffix typically denotes tape and reel packaging for automated assembly. The SM-8 package provides efficient heat dissipation compared to smaller SOT packages while maintaining a small board area suitable for dense layouts.
Replacement Considerations
Direct pin-compatible substitutes include the ZDT605TC for lower current requirements or the ZDT6702TA for different voltage/current characteristics. Verify thermal resistance and saturation voltage specifications match before substitution.
