DS2003TMX Equivalent & Substitute Parts

Part Overview

The DS2003TMX is a 6/0 Driver IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as an Interface driver with a 5V supply voltage and operating temperature range of -40°C to 125°C. The DS2003TMX is currently obsolete, making equivalent substitute parts necessary for new designs and production applications. Substitute parts must maintain functional compatibility through matching electrical characteristics, package form factor, and performance parameters.

Key Parameters

Parameter	DS2003TMX
Manufacturer	Texas Instruments
Part Number	DS2003TMX
Category	Interface Driver
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Number of Drivers/Receivers	6/0
Voltage - Supply	5V
Operating Temperature	-40°C ~ 125°C
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DS2003TMX are selected based on the following critical parameters:

Package Compatibility: All substitutes must use the 16-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility without redesign.

Output Configuration: The DS2003TMX functions as a 6/0 driver. Substitute parts maintain this driver/receiver architecture with 7 NPN outputs in a 1:1 input-to-output ratio configuration.

Electrical Performance: Substitutes operate at 50V maximum load voltage with 500mA maximum output current, supporting the same relay and solenoid driver applications.

Interface Type: All substitutes use parallel inverting input interfaces, maintaining signal compatibility with existing circuit designs.

Thermal and Environmental: Substitute parts operate within -40°C to 85°C or -40°C to 105°C ranges, covering the lower end of the original -40°C to 125°C specification. RoHS3 compliance is available in active substitutes, addressing modern regulatory requirements.

Parameter Comparison

Parameter	DS2003TMX	ULN2003AIDR	MC1413BDR2G	MC1413DR2G	NCV1413BDR2G	ULN2001D1013TR	ULN2002D1013TR	ULN2003ADR2G	ULN2003D1013TR	ULN2004D1013TR	ULQ2003ADR2G
Manufacturer	Texas Instruments	Texas Instruments	onsemi	onsemi	onsemi	STMicroelectronics	STMicroelectronics	onsemi	STMicroelectronics	STMicroelectronics	onsemi
Package / Case	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Number of Outputs	6	7	7	7	7	7	7	7	7	7	7
Output Type	Driver	Darlington	NPN Darlington	NPN Darlington	NPN Darlington	NPN	NPN	Darlington	Darlington	NPN	Darlington
Voltage - Load (Max)	Not specified	50V	50V	50V	50V	50V	50V	50V	50V	50V	50V
Current - Output (Max)	Not specified	500mA	500mA	500mA	500mA	500mA	500mA	500mA	500mA	500mA	500mA
Input Type	Not specified	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting
Operating Temperature	-40°C ~ 125°C	-40°C ~ 105°C	150°C (TJ)	150°C (TJ)	150°C (TJ)	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - ULN2003AIDR (Texas Instruments): Maintains original manufacturer continuity while offering active product status and ROHS3 compliance. Operates at -40°C to 105°C, covering most industrial applications. Darlington output configuration provides enhanced current gain for relay and solenoid driving applications.

Alternative Substitutes - onsemi Options (ULN2003ADR2G, ULQ2003ADR2G, MC1413BDR2G, MC1413DR2G, NCV1413BDR2G): All onsemi parts are ROHS3 compliant with active product status. ULN2003ADR2G and ULQ2003ADR2G offer -40°C to 85°C operating range with Darlington outputs. MC1413 series parts provide -40°C to 150°C junction temperature rating, suitable for high-temperature environments. NCV1413BDR2G includes automotive-grade qualification for automotive applications.

STMicroelectronics Options (ULN2001D1013TR, ULN2002D1013TR, ULN2003D1013TR, ULN2004D1013TR): All STMicroelectronics parts are ROHS3 compliant with -40°C to 85°C operating range. ULN2003D1013TR and ULN2001D1013TR offer Darlington and NPN output configurations respectively. ULN2002D1013TR and ULN2004D1013TR provide NPN output alternatives. All maintain 500mA output current and 50V load voltage specifications.

Temperature Consideration: Applications requiring operation above 85°C should prioritize MC1413 series parts with 150°C junction temperature rating. Applications limited to -40°C to 70°C may use ULN2003ADR2G. Standard industrial range (-40°C to 85°C) is covered by all STMicroelectronics and most onsemi options.

Regulatory Compliance: All active substitutes are ROHS3 compliant, addressing modern environmental regulations. The original DS2003TMX is RoHS non-compliant and should be replaced in new designs.

Frequently Asked Questions (FAQ)

Q: Can I directly replace DS2003TMX with any of these substitutes without PCB modification?

A: Yes, all listed substitutes use the identical 16-SOIC (0.154", 3.90mm Width) surface mount package. Pin-to-pin compatibility is maintained for standard driver/relay applications. Verify pinout alignment with your specific circuit schematic before assembly.

Q: What is the difference between Darlington and NPN output types in these substitutes?

A: Darlington output types (ULN2003AIDR, MC1413BDR2G, MC1413DR2G, NCV1413BDR2G, ULN2003ADR2G, ULN2003D1013TR, ULQ2003ADR2G) provide higher current gain and lower saturation voltage, making them ideal for relay and solenoid driving. NPN output types (ULN2001D1013TR, ULN2002D1013TR, ULN2004D1013TR) offer faster switching speeds. Select based on your load requirements.

Q: Which substitute offers the widest operating temperature range?

A: MC1413BDR2G, MC1413DR2G, and NCV1413BDR2G specify 150°C junction temperature (TJ), providing the highest thermal capability. For ambient temperature specifications, ULN2003AIDR covers -40°C to 105°C, the widest among ambient-rated parts.

Q: Are all substitutes RoHS compliant?

A: Yes, all listed active substitutes are ROHS3 compliant. The original DS2003TMX is RoHS non-compliant. Use active substitutes for new designs to meet current environmental regulations.

Q: What inventory availability should I consider?

A: ULN2003D1013TR (STMicroelectronics) offers the highest inventory at 1,787,200 pieces. ULN2003ADR2G (onsemi) provides 605,400 pieces. ULN2003AIDR (Texas Instruments) has 138,900 pieces available. Verify current stock levels with your supplier for production planning.

Q: Can I use NCV1413BDR2G in automotive applications?

A: Yes, NCV1413BDR2G is specifically qualified for automotive-grade applications. It maintains the same electrical specifications as other MC1413 variants while meeting automotive reliability and qualification standards.

Q: What is the significance of the 1:1 input-to-output ratio?

A: The 1:1 ratio indicates that each input channel controls one output channel directly. This maintains the functional architecture of the original DS2003TMX driver configuration, ensuring circuit compatibility without redesign.

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