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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 ULN2003ANSRE4 is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven independent NPN Darlington pairs within a single 16-pin PDIP package designed for through-hole mounting. Each channel provides a maximum continuous collector current of 500 mA and supports a collector-emitter voltage (Vceo) of 50 V. The device features an internal saturation voltage (VceSAT) of up to 1.1 V and operates across a temperature range from -20°C to 70°C. Input pins are positioned opposite output pins to facilitate circuit layout.
Feature Summary
- Integrates seven independent Darlington pairs with common emitters for multi-channel load driving
- Includes integrated clamp diodes on each output to suppress inductive kickback from loads
- Features TTL, CMOS, PMOS, and DTL compatible input logic levels
Applications
- Relay driver circuits
- Stepper motor control systems
- High-current switching interfaces for microcontrollers
Procurement Notes
Verify the specific suffix 'E4' against the manufacturer's official documentation to confirm material composition or RoHS compliance status. Ensure the ordering part number matches the exact package style and pin configuration required for the target PCB footprint. Cross-reference the datasheet revision date to ensure all electrical parameters align with current design specifications.
Selection Notes
Select this component when designing circuits requiring simultaneous control of multiple high-current inductive or resistive loads. The 500 mA per channel rating suits direct driving of small relays and solenoids. Verify that the system's thermal environment remains within the specified -20°C to 70°C operating range to maintain reliable performance without external heat sinking.
Part Context
This part belongs to the ULN2003A series of high-voltage, high-current Darlington arrays. It serves as a robust interface between low-power digital logic controllers and higher-power analog loads. The standard PDIP-16 package allows for easy prototyping and integration into legacy through-hole designs commonly found in industrial automation equipment.
Replacement Considerations
Compatible alternatives include the ULN2003AN and ULN2003APW. Verify pin compatibility and electrical ratings before substitution. Other manufacturers produce equivalent parts such as the MC1413B, though input resistor values may differ slightly.
