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Product Detailed Parameters
- Description：IC PWR RELAY 7NPN 1:1 16SO
- Series：ULx200xA
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：-
- Frequency - Transition：-
- Operating Temperature：-40°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The ULN2003ANSRG4 is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It comprises seven NPN Darlington pairs with integrated base resistors, designed for direct interfacing with TTL and CMOS logic circuits operating at 5V. The device features open-collector outputs capable of sinking up to 500 mA per channel while withstanding 50 V in the OFF state. Packaged in a 16-pin TSSOP (DR) surface-mount format, it includes common collector clamp diodes for switching inductive loads. The component operates within a temperature range of -20°C to 70°C.
Feature Summary
- Integrates seven independent NPN Darlington pairs with built-in 2.7 kΩ base resistors for direct logic interface compatibility.
Applications
- Driving relays and solenoids from microcontroller or PLC output pins.
- Actuating stepper motors and other high-current inductive loads.
- Powering multiplexed LED displays and incandescent lamps.
Procurement Notes
Verify the specific suffix 'SRG4' against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the ordering part number matches the required surface-mount footprint and reflow soldering profile for your PCB assembly process.
Selection Notes
Select this component when a 16-pin surface-mount solution is required for driving multiple high-current loads. It serves as a drop-in replacement for through-hole DIP variants like the ULN2003AN, provided the PCB layout accommodates the smaller TSSOP outline and thermal dissipation requirements are met.
Part Context
This part belongs to the ULN20xxA series of high-voltage Darlington arrays. While functionally identical to the standard ULN2003A, the 'S' and 'R' designators indicate a specific surface-mount plastic small-outline package variant optimized for automated assembly processes.
Replacement Considerations
The ULN2003ADWR is a verified equivalent offering the same electrical characteristics in a comparable surface-mount package. Other compatible alternatives include the ULN2003APW and ULN2003DWR, which maintain the seven-channel configuration and 500 mA sink capability.
