TL103WIDR Equivalent & Substitute Parts

Part Overview

The TL103WIDR is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a dual-circuit (2-channel) device in an 8-SOIC surface-mount package. This component is classified as a linear amplifier and is currently in active production status with 30,200 units in stock. The TL103WIDR serves applications requiring low-power, general-purpose amplification across industrial, consumer, and embedded system designs. Substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence to ensure seamless integration into existing circuit designs.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	Channels
Slew Rate	0.4	V/µs
Gain Bandwidth Product	900	kHz
Current - Input Bias	20	nA
Voltage - Input Offset	1	mV
Current - Supply (per Channel)	700	µA
Current - Output per Channel	40	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	32	V
Operating Temperature Range	-40 to 105	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TL103WIDR are classified into two primary categories based on electrical and mechanical compatibility:

Category 1: Direct Functional Equivalents (STMicroelectronics TSM103 Series) These parts share identical or near-identical electrical specifications with the TL103WIDR, including dual-circuit configuration, 8-SOIC package geometry, and compatible supply voltage ranges. Parts in this category include TSM103WID and TSM103WIDT. The primary distinction is packaging format (Tube versus Cut Tape & Digi-Reel) and moisture sensitivity level.

Category 2: Enhanced Performance Alternatives (General Purpose Amplifiers) These parts maintain functional equivalence through matching dual-circuit topology, 8-SOIC package, and compatible supply voltage ranges, but offer improved or alternative electrical characteristics such as higher gain-bandwidth product, lower input offset voltage, or extended temperature ratings. This category includes AS358AMTR-E1, AS358AMTR-G1, LM158DT, LM258D, LM358ADR2G, and MC1458DT.

Category 3: Specialized Alternatives (Power Management Applications) These parts are optimized for power management applications while maintaining package and basic electrical compatibility. This category includes AP4310AMTR-AG1 and TSM103WAIDT.

Key Parameters Determining Substitution Eligibility:

Dual-circuit (2-channel) configuration
8-SOIC surface-mount package (0.154", 3.90mm width)
Supply voltage range minimum of 3V
Supply voltage range maximum of 30V or greater
Input bias current of 20–45 nA
Output current per channel of 40 mA or greater
Operating temperature range encompassing -40°C to 105°C or compatible subset
RoHS3 compliance and MSL rating of 1 or 3

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (kHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package
TL103WIDR	Texas Instruments	General Purpose	2	0.4	900	20	1	700	40	3	32	-40 to 105	8-SOIC
TSM103WID	STMicroelectronics	Amplifier	2	—	—	—	—	—	—	3	32	—	8-SOIC
TSM103WIDT	STMicroelectronics	Amplifier	2	—	—	—	—	—	—	3	32	—	8-SOIC
AP4310AMTR-AG1	Diodes Incorporated	General Purpose	2	0.5	1000	20	0.5	150	40	3	36	-40 to 105	8-SOIC
AS358AMTR-E1	Diodes Incorporated	General Purpose	2	—	—	20	2	700	40	3	36	-40 to 85	8-SOIC
AS358AMTR-G1	Diodes Incorporated	General Purpose	2	—	—	20	2	700	40	3	36	-40 to 85	8-SOIC
LM158DT	STMicroelectronics	General Purpose	2	0.6	1100	20	5	700	40	3	30	-55 to 125	8-SOIC
LM258D	STMicroelectronics	General Purpose	2	0.6	1100	20	5	700	40	3	30	-40 to 105	8-SOIC
LM358ADR2G	onsemi	General Purpose	2	—	1000	45	2	800	40	3	32	0 to 70	8-SOIC
MC1458DT	STMicroelectronics	General Purpose	2	0.8	1000	30	1	2300	25	5	30	0 to 70	8-SOIC
TSM103WAIDT	STMicroelectronics	Amplifier	2	—	—	—	—	—	—	3	32	—	8-SOIC

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

TSM103WID and TSM103WIDT (STMicroelectronics) are the closest functional equivalents to the TL103WIDR. Both maintain identical package geometry, supply voltage range, and dual-circuit configuration. Selection between these two depends on packaging requirements: TSM103WID is supplied in Tube format, while TSM103WIDT is supplied in Cut Tape & Digi-Reel format. Both are RoHS3 compliant. TSM103WIDT carries MSL-3 rating (168 hours), whereas TSM103WID carries MSL-1 (unlimited), making TSM103WID preferable for applications with extended storage or high-humidity environments.

Secondary Substitutes (Enhanced Performance):

LM258D (STMicroelectronics) and LM158DT (STMicroelectronics) offer improved electrical performance with higher slew rate (0.6 V/µs versus 0.4 V/µs) and gain-bandwidth product (1.1 MHz versus 900 kHz). LM258D operates across the identical temperature range (-40°C to 105°C) as the TL103WIDR and is supplied in Tube packaging. LM158DT extends the operating temperature range to -55°C to 125°C and includes AEC-Q100 automotive qualification, making it suitable for automotive and extended-temperature applications. Both maintain 700 µA supply current per channel and 40 mA output current per channel.

AS358AMTR-E1 and AS358AMTR-G1 (Diodes Incorporated) provide dual-circuit general-purpose amplification with matching input bias current (20 nA) and output current (40 mA). These parts operate across 3V to 36V supply range and are RoHS3 compliant. The primary limitation is the reduced operating temperature range (-40°C to 85°C), which excludes applications requiring operation above 85°C. AS358AMTR-E1 carries MSL-1 rating, while AS358AMTR-G1 carries MSL-3 rating.

AP4310AMTR-AG1 (Diodes Incorporated) is optimized for power management applications and offers superior electrical characteristics including lower input offset voltage (0.5 mV versus 1 mV), significantly reduced supply current (150 µA per channel versus 700 µA), and higher gain-bandwidth product (1 MHz versus 900 kHz). This part is suitable for battery-powered and low-power applications. It operates across -40°C to 105°C and supports supply voltages up to 36V.

Tertiary Substitutes (Limited Compatibility):

LM358ADR2G (onsemi) operates across a restricted temperature range (0°C to 70°C), limiting its use to commercial-grade applications. MC1458DT (STMicroelectronics) requires a minimum supply voltage of 5V (versus 3V for the TL103WIDR) and provides only 25 mA output current per channel (versus 40 mA), making it unsuitable for applications requiring 3V operation or higher output current.

TSM103WAIDT (STMicroelectronics) is designated for power management applications and maintains package and supply voltage compatibility but lacks detailed electrical specifications in the provided data.

Compliance and Certification:

All recommended substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the regulatory posture of the TL103WIDR. Moisture sensitivity levels range from MSL-1 (unlimited) to MSL-3 (168 hours), with MSL-1 parts preferred for applications involving extended storage or high-humidity manufacturing environments.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace TL103WIDR with TSM103WID or TSM103WIDT without circuit modification?

A: Yes. TSM103WID and TSM103WIDT are direct functional equivalents sharing identical package geometry (8-SOIC), dual-circuit configuration, and compatible supply voltage range (3V to 32V). No circuit modification is required. The selection between TSM103WID (Tube) and TSM103WIDT (Cut Tape & Digi-Reel) depends on your procurement and assembly process requirements.

Q2: What is the difference between MSL-1 and MSL-3 moisture sensitivity ratings?

A: MSL-1 (Unlimited) indicates the component has unlimited shelf life under controlled storage conditions and does not require baking before reflow soldering. MSL-3 (168 hours) indicates the component must be used within 168 hours of package opening or must be baked at specified temperature and humidity conditions before reflow soldering. For applications with extended storage or high-humidity environments, MSL-1 parts (such as TSM103WID) are preferred.

Q3: Which substitute part offers the lowest power consumption?

A: AP4310AMTR-AG1 (Diodes Incorporated) offers the lowest supply current at 150 µA per channel, compared to 700 µA per channel for the TL103WIDR. This makes AP4310AMTR-AG1 suitable for battery-powered and energy-constrained applications. However, AP4310AMTR-AG1 is supplied in Tape & Reel format and carries MSL-3 rating.

Q4: Can I use LM358ADR2G as a substitute for the TL103WIDR?

A: LM358ADR2G is not recommended as a primary substitute due to its restricted operating temperature range (0°C to 70°C), which excludes the TL103WIDR's lower temperature specification (-40°C). Use LM358ADR2G only in applications operating within the 0°C to 70°C range.

Q5: What is the key difference between LM258D and LM158DT?

A: Both parts offer identical electrical specifications (0.6 V/µs slew rate, 1.1 MHz gain-bandwidth product, 700 µA supply current per channel). The primary difference is operating temperature range: LM258D operates -40°C to 105°C (matching the TL103WIDR), while LM158DT extends to -55°C to 125°C and includes AEC-Q100 automotive qualification. LM158DT is preferred for automotive and extended-temperature applications.

Q6: Why do some substitute parts lack slew rate and gain-bandwidth product specifications?

A: TSM103WID, TSM103WIDT, and TSM103WAIDT are marketed as general amplifier ICs for power management applications and do not provide detailed AC performance specifications in the available data. These parts are functionally equivalent based on package, circuit count, and supply voltage compatibility but should be verified against your specific application requirements if AC performance is critical.

Q7: Can I use MC1458DT as a substitute?

A: MC1458DT is not recommended as a primary substitute. It requires a minimum supply voltage of 5V (versus 3V for the TL103WIDR), operates only to 0°C to 70°C, and provides only 25 mA output current per channel (versus 40 mA). Use MC1458DT only in applications with 5V or higher supply voltage and output current requirements not exceeding 25 mA per channel.

Q8: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the regulatory compliance of the TL103WIDR.

Q9: Which substitute part is best for automotive applications?

A: LM158DT (STMicroelectronics) is qualified to AEC-Q100 automotive standard and extends the operating temperature range to -55°C to 125°C, making it the recommended choice for automotive applications. It maintains 700 µA supply current per channel and 40 mA output current per channel, matching the TL103WIDR's output capability.

Q10: What packaging formats are available for substitute parts?

A: Substitute parts are available in three packaging formats: Tube (TSM103WID, LM258D), Cut Tape & Digi-Reel (TL103WIDR, TSM103WIDT, LM158DT, LM358ADR2G, MC1458DT), and Tape & Reel (AP4310AMTR-AG1, AS358AMTR-E1, AS358AMTR-G1). Select based on your assembly process and procurement workflow.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message