LM139J/883 Equivalent & Substitute Parts Reference

Part Overview

The LM139J/883 is a low-power, low-offset voltage general-purpose comparator manufactured by Texas Instruments. This device integrates four independent comparators in a 14-CDIP through-hole package, featuring open-collector/open-drain outputs suitable for logic-level interfacing. The part operates across a wide supply voltage range (5V ~ 30V single supply, ±2.5V ~ 15V dual supply) with minimal input offset voltage of 2mV at 5V and low quiescent current of 2mA maximum.

The LM139J/883 maintains Active product status with 3401 units in current inventory. Equivalent and substitute parts are identified to address application requirements including alternative packaging formats, enhanced electrical performance specifications, or specific manufacturing certifications. Substitution validity depends on matching critical electrical parameters: supply voltage range, input offset voltage, output type, package compatibility, and operating temperature range.

Key Parameters

Parameter	Value	Condition
Manufacturer	Texas Instruments	—
Part Number	LM139J/883	—
Category	Linear Comparator	—
Type	General Purpose	—
Number of Elements	4	—
Output Type	Open-Collector, Open-Drain	—
Package / Case	14-CDIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
Voltage - Supply, Single/Dual (±)	5V ~ 30V, ±2.5V ~ 15V	—
Voltage - Input Offset (Max)	2mV	@ 5V
Current - Input Bias (Max)	1000pA	@ 5V
Current - Output (Typ)	20mA	—
Current - Quiescent (Max)	2mA	—
CMRR, PSRR (Typ)	70dB CMRR, 60dB PSRR	—
Propagation Delay (Max)	1.3µs	Typical
Hysteresis	10mV	—
Operating Temperature	-55°C ~ 125°C	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitute parts for the LM139J/883 are classified into two categories based on substitution criteria:

Direct Substitutes (Same Package, Through-Hole 14-CDIP): Direct substitutes maintain identical 14-CDIP through-hole packaging and preserve the core electrical characteristics necessary for pin-compatible replacement. These parts satisfy applications requiring no PCB layout modifications.

Substitution criteria for direct equivalents:

Package: 14-CDIP (0.300", 7.62mm)
Mounting Type: Through Hole
Number of Elements: 4
Output Type: Open-Collector, Open-Drain
Operating Temperature Range: -55°C ~ 125°C
Supply Voltage Range: Minimum 2V ~ 36V single supply or ±1V ~ 18V dual supply (encompasses LM139J/883 range)
Input Offset Voltage: ≤ 5mV @ 30V
RoHS3 Compliance

Similar Substitutes (Alternative Packages, Surface-Mount or Different Form Factors): Similar substitutes provide functional equivalence with different packaging technologies (surface-mount SOIC, TSSOP, or PDIP variants). These parts require PCB redesign but offer advantages in space efficiency, manufacturing automation, or specific application requirements.

Substitution criteria for similar parts:

Number of Elements: 4
Type: General Purpose Comparator
Output Type: Open-Collector, Open-Drain, or CMOS-compatible
Operating Temperature Range: -40°C ~ 125°C minimum
Supply Voltage Range: 2V ~ 36V single supply or ±1V ~ 18V dual supply
Input Offset Voltage: ≤ 7mV @ 5V
RoHS3 Compliance

Parameter Comparison

Part Number	Manufacturer	Package	Mounting	Supply Voltage	Input Offset (Max)	Output Type	Temp Range	Product Status
LM139J/883	Texas Instruments	14-CDIP	Through Hole	5V~30V, ±2.5V~15V	2mV @ 5V	Open-Collector, Open-Drain	-55°C ~ 125°C	Active
LM139AJ/PB	Texas Instruments	14-CDIP	Through Hole	2V~36V, ±1V~18V	2mV @ 30V	Open-Collector, Open-Drain	-55°C ~ 125°C	Active
LM139J/PB	Texas Instruments	14-CDIP	Through Hole	2V~36V, ±1V~18V	5mV @ 30V	Open-Collector, Open-Drain	-55°C ~ 125°C	Active
TLC339MN	Texas Instruments	14-DIP	Through Hole	4V~16V	5mV @ 10V	CMOS, Open-Drain	-55°C ~ 125°C	Last Time Buy
LM139ADT	STMicroelectronics	14-SOIC	Surface Mount	2V~32V, ±1V~16V	2mV @ 30V	Open-Collector, Open-Drain	-55°C ~ 125°C	Active
LM239ADT	STMicroelectronics	14-SOIC	Surface Mount	2V~32V, ±1V~16V	2mV @ 30V	CMOS, DTL, ECL, MOS, Open-Collector, TTL	-40°C ~ 105°C	Active
LM239DR2G	onsemi	14-SOIC	Surface Mount	3V~36V, ±1.5V~18V	5mV @ 5V	CMOS, Open-Collector, TTL	-25°C ~ 85°C	Active
LM239DTBR2G	onsemi	14-TSSOP	Surface Mount	3V~36V, ±1.5V~18V	5mV @ 5V	CMOS, Open-Collector, TTL	-25°C ~ 85°C	Active
LM2901EDR2G	onsemi	14-SOIC	Surface Mount	3V~36V, ±1.5V~18V	7mV @ 5V	Open-Collector, Open-Drain	-40°C ~ 105°C	Active
LM2901PT	STMicroelectronics	14-TSSOP	Surface Mount	2V~32V, ±1V~16V	7mV @ 5V	CMOS, DTL, ECL, MOS, Open-Collector, TTL	-40°C ~ 125°C	Active
LM2901VDR2G	onsemi	14-SOIC	Surface Mount	3V~36V, ±1.5V~18V	7mV @ 5V	CMOS, Open-Collector, TTL	-40°C ~ 125°C	Active

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (Through-Hole 14-CDIP):

LM139AJ/PB and LM139J/PB are direct substitutes for the LM139J/883 with identical package geometry and through-hole mounting. Both parts are Active status products from Texas Instruments with ROHS3 compliance and MSL 1 rating. LM139AJ/PB offers superior input offset voltage specification (2mV @ 30V) and expanded supply voltage range (2V ~ 36V single supply, ±1V ~ 18V dual supply), making it the preferred direct replacement. LM139J/PB provides equivalent functionality with relaxed input offset specification (5mV @ 30V) and identical supply range.

TLC339MN provides through-hole 14-DIP packaging with CMOS output architecture and LinCMOS series designation. This part carries Last Time Buy status, indicating discontinued production with limited future availability. Supply voltage range is restricted to 4V ~ 16V, which may not accommodate all LM139J/883 applications requiring extended voltage operation. TLC339MN is suitable only for new designs with confirmed voltage requirements within the 4V ~ 16V window and where CMOS output characteristics are acceptable.

For Surface-Mount Alternatives (SOIC, TSSOP Packages):

STMicroelectronics LM139ADT (14-SOIC) and LM239ADT (14-SOIC) provide surface-mount equivalents with Active product status and ROHS3 compliance. LM139ADT maintains identical input offset voltage (2mV @ 30V) and operating temperature range (-55°C ~ 125°C) as the original part. LM239ADT operates at reduced temperature range (-40°C ~ 105°C) with equivalent input offset specification.

onsemi LM239DR2G (14-SOIC) and LM239DTBR2G (14-TSSOP) offer extended supply voltage range (3V ~ 36V, ±1.5V ~ 18V) with Active status. These parts operate at reduced temperature range (-25°C ~ 85°C) and exhibit higher input offset voltage (5mV @ 5V). Selection is appropriate for applications with temperature requirements within -25°C ~ 85°C and where relaxed offset specifications are acceptable.

onsemi LM2901EDR2G (14-SOIC) and LM2901VDR2G (14-SOIC) provide extended operating temperature range (-40°C ~ 105°C and -40°C ~ 125°C respectively) with Active status. Input offset voltage is specified at 7mV @ 5V, representing relaxed performance compared to the original part. LM2901VDR2G extends temperature operation to -40°C ~ 125°C, matching the original part's lower temperature limit.

STMicroelectronics LM2901PT (14-TSSOP) offers Active status with extended temperature range (-40°C ~ 125°C) and supply voltage compatibility (2V ~ 32V, ±1V ~ 16V). Input offset voltage is specified at 7mV @ 5V.

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing processes and storage requirements. All parts carry Active product status except TLC339MN (Last Time Buy), which should be avoided for new designs requiring long-term availability.

Frequently Asked Questions (FAQ)

Q1: Can LM139J/PB be used as a direct replacement for LM139J/883 in existing designs?

A: Yes. LM139J/PB is a direct substitute with identical 14-CDIP through-hole package, pin configuration, and operating temperature range (-55°C ~ 125°C). Both parts feature open-collector/open-drain outputs and four independent comparators. The primary difference is input offset voltage specification: LM139J/883 specifies 2mV @ 5V while LM139J/PB specifies 5mV @ 30V. For applications where input offset voltage is not a critical parameter, LM139J/PB provides equivalent functionality. Verify that the relaxed offset specification does not impact system accuracy before substitution.

Q2: What is the key difference between LM139AJ/PB and LM139J/PB?

A: Both parts share identical 14-CDIP packaging and through-hole mounting. The primary distinction is input offset voltage: LM139AJ/PB specifies 2mV @ 30V (superior performance), while LM139J/PB specifies 5mV @ 30V. LM139AJ/PB also exhibits lower input bias current (0.1µA @ 5V versus 0.1µA @ 5V for LM139J/PB, with identical specification). Both parts operate across 2V ~ 36V single supply or ±1V ~ 18V dual supply, exceeding the LM139J/883 range. For precision applications requiring minimal input offset voltage, LM139AJ/PB is the preferred choice.

Q3: Why is TLC339MN marked as Last Time Buy, and should it be used in new designs?

A: TLC339MN carries Last Time Buy status, indicating Texas Instruments has discontinued production with no future availability. This part should not be selected for new designs requiring long-term component supply. Existing designs currently using TLC339MN should transition to alternative parts with Active status. Additionally, TLC339MN supply voltage range (4V ~ 16V) is more restrictive than the original LM139J/883 (5V ~ 30V single supply), limiting application flexibility.

Q4: Can surface-mount parts (SOIC, TSSOP) replace through-hole LM139J/883 without PCB redesign?

A: No. Surface-mount packages (14-SOIC, 14-TSSOP) require different PCB footprints and cannot be directly installed in through-hole mounting holes designed for 14-CDIP packages. Substitution with surface-mount alternatives requires PCB layout redesign, including new pad patterns, trace routing, and potentially different assembly processes. Surface-mount substitutes are appropriate only for new PCB designs or complete board redesigns where manufacturing automation benefits justify the engineering effort.

Q5: What are the temperature range implications when selecting LM239DR2G or LM239DTBR2G?

A: LM239DR2G and LM239DTBR2G both operate across -25°C ~ 85°C, which is narrower than the original LM139J/883 range (-55°C ~ 125°C). These parts are unsuitable for applications requiring operation below -25°C or above 85°C. Verify that your application's temperature requirements fall within -25°C ~ 85°C before selecting these parts. For extended temperature operation, choose LM2901VDR2G (-40°C ~ 125°C) or LM2901PT (-40°C ~ 125°C).

Q6: How do CMOS output types (TLC339MN, LM239 series) differ from open-collector outputs (LM139J/883)?

A: Open-collector outputs (LM139J/883) require external pull-up resistors to establish logic high levels and are compatible with TTL and CMOS logic families. CMOS outputs (TLC339MN, LM239 series) provide active high and low drive capability without external pull-up resistors. CMOS outputs typically exhibit lower output impedance and faster switching transitions. If your circuit design includes external pull-up resistors for open-collector operation, verify that CMOS output characteristics do not introduce signal integrity issues before substitution. Conversely, if your design relies on open-collector behavior, CMOS output parts may require circuit modifications.

Q7: What does MSL 1 (Unlimited) moisture sensitivity level mean for component handling?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. These parts do not require special moisture-controlled storage, desiccant packaging, or bake-out procedures before soldering. Standard warehouse storage conditions are acceptable. All recommended substitute parts carry MSL 1 rating, ensuring compatibility with standard component handling and storage practices.

Q8: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts carry ROHS3 compliance certification, confirming compliance with Restriction of Hazardous Substances Directive requirements. This ensures compatibility with modern manufacturing processes and environmental regulations. ROHS3 compliance is maintained across all direct and similar substitutes listed in this reference.

Q9: Which substitute part offers the best input offset voltage performance?

A: LM139AJ/PB and LM139ADT both specify 2mV @ 30V input offset voltage, matching the original LM139J/883 specification of 2mV @ 5V. These parts provide superior offset performance compared to alternatives specifying 5mV or 7mV. For precision applications where input offset voltage directly impacts system accuracy, LM139AJ/PB (through-hole) or LM139ADT (surface-mount) are the optimal choices.

Q10: What inventory availability should be considered when selecting substitutes?

A: Current inventory levels are: LM139J/883 (3401 pcs), LM139J/PB (3100 pcs), LM139AJ/PB (1416 pcs), LM239ADT (15360 pcs), LM239DR2G (105400 pcs), LM2901PT (26244 pcs), and LM2901VDR2G (3100 pcs). LM239DR2G exhibits the highest inventory level (105400 pcs), providing maximum supply security. For applications with extended lead-time requirements, LM239ADT and LM2901PT offer substantial inventory reserves. TLC339MN (1100 pcs) carries Last Time Buy status with limited future availability and should be avoided for new designs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message