DS2003CMX Equivalent & Substitute Parts

Part Overview

The DS2003CMX is a 6/0 Driver IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The DS2003CMX operates at 5V supply voltage with an operating temperature range of -40°C to 85°C and is RoHS non-compliant. Substitute parts must maintain functional equivalence in driver configuration, package form factor, and electrical performance parameters.

Key Parameters

Parameter	DS2003CMX
Manufacturer	Texas Instruments
Category	Interface / Driver
Number of Drivers/Receivers	6/0
Voltage - Supply	5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the DS2003CMX are selected based on the following critical parameters:

Package Compatibility: All substitutes must use 16-SOIC (0.154", 3.90mm Width) surface mount packaging to ensure PCB layout compatibility
Output Configuration: Substitutes maintain 7 output driver/transistor arrays with low-side output configuration
Electrical Performance: Maximum collector current of 500mA and maximum collector-emitter breakdown voltage of 50V align with the original specification
Operating Temperature Range: Substitutes support -40°C to 85°C or -40°C to 70°C operating ranges
Mounting Type: All substitutes are surface mount compatible

Substitute parts are grouped into two functional categories: Darlington transistor arrays (MC1413 series, ULN2003 series, ULQ2003 series) and NPN transistor arrays (ULN2001, ULN2002, ULN2004 series). Both categories provide equivalent driver functionality within the specified electrical and thermal parameters.

Parameter Comparison

Part Number	Manufacturer	Output Type	Number of Outputs	Current - Output (Max)	Voltage - Load (Max)	Operating Temperature	Package	Product Status	RoHS Status
DS2003CMX	Texas Instruments	Driver (6/0)	6	-	-	-40°C ~ 85°C	16-SOIC	Obsolete	Non-compliant
MC1413BDR2G	onsemi	7 NPN Darlington	7	500mA	50V	-40°C ~ 150°C (TJ)	16-SOIC	Active	ROHS3 Compliant
MC1413DR2G	onsemi	7 NPN Darlington	7	500mA	50V	-40°C ~ 150°C (TJ)	16-SOIC	Active	ROHS3 Compliant
NCV1413BDR2G	onsemi	7 NPN Darlington	7	500mA	50V	-40°C ~ 150°C (TJ)	16-SOIC	Active	ROHS3 Compliant
ULN2001D1013TR	STMicroelectronics	7 NPN	7	500mA	50V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ULN2002D1013TR	STMicroelectronics	7 NPN	7	500mA	50V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ULN2003ADR2G	onsemi	7 Darlington	7	500mA	50V	-40°C ~ 70°C	16-SOIC	Active	ROHS3 Compliant
ULN2003D1013TR	STMicroelectronics	7 Darlington	7	500mA	50V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ULN2004D1013TR	STMicroelectronics	7 NPN	7	500mA	50V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ULQ2003ADR2G	onsemi	7 Darlington	7	500mA	50V	-40°C ~ 85°C	16-SOIC	Active	ROHS3 Compliant
ULQ2003D1013TR	STMicroelectronics	7 NPN Darlington	7	500mA	50V	-40°C ~ 150°C (TJ)	16-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance, providing improved environmental and regulatory standing compared to the obsolete DS2003CMX. Selection between substitutes depends on specific application requirements:

Darlington Output Type (MC1413 series, ULN2003 series, ULQ2003 series): Suitable for applications requiring higher input impedance and lower input current requirements. Darlington configurations provide higher current gain and are preferred for relay and solenoid driver applications.

NPN Output Type (ULN2001, ULN2002, ULN2004 series): Suitable for applications requiring faster switching speeds and lower saturation voltage. NPN configurations are preferred for logic-level switching applications.

Temperature Range Considerations: STMicroelectronics ULN2003D1013TR and ULN2001D1013TR maintain the -40°C to 85°C operating range matching the original DS2003CMX. onsemi ULN2003ADR2G operates to -40°C to 70°C. onsemi MC1413 and NCV1413 series, along with ULQ2003D1013TR, extend to 150°C junction temperature.

Manufacturer Availability: STMicroelectronics ULN2003D1013TR offers the highest inventory (1,787,200 units), ensuring supply continuity. onsemi ULN2003ADR2G provides 605,400 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I directly replace DS2003CMX with any of these substitutes?

A: Direct replacement is possible for parts sharing the 16-SOIC package. However, verify that your application can tolerate the increased number of outputs (7 versus 6) and confirm compatibility with either Darlington or NPN output types based on your circuit design.

Q: What is the difference between Darlington and NPN output configurations?

A: Darlington configurations (MC1413, ULN2003, ULQ2003 series) provide higher current gain and lower input current requirements, making them suitable for relay and solenoid drivers. NPN configurations (ULN2001, ULN2002, ULN2004 series) offer faster switching and lower saturation voltage, preferred for logic-level switching applications.

Q: Are all substitutes RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, whereas the original DS2003CMX is RoHS non-compliant. This provides improved environmental compliance for new designs.

Q: Does the 16-SOIC package dimension match across all parts?

A: Yes. All substitute parts use 16-SOIC (0.154", 3.90mm Width) packaging, ensuring PCB layout compatibility without redesign.

Q: Which substitute has the best availability?

A: STMicroelectronics ULN2003D1013TR has the highest inventory at 1,787,200 units in stock, followed by onsemi ULN2003ADR2G at 605,400 units.

Q: Can I use a substitute with a higher operating temperature rating?

A: Yes. Substitutes with extended temperature ratings (-40°C to 150°C junction temperature) provide additional thermal margin and are suitable for applications operating within the DS2003CMX temperature range of -40°C to 85°C.

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