LM4041CIDBZRG4 Equivalent & Substitute Parts

Part Overview

The LM4041CIDBZRG4 is a shunt voltage reference IC with adjustable output, manufactured by Texas Instruments. This component is classified as a Power Management (PMIC) device and is packaged in SOT-23-3 (TO-236-3, SC-59). The part is discontinued at DiGi Electronics, necessitating identification of active equivalent and substitute components that maintain functional compatibility for new designs or production continuity.

Key Parameters

Parameter	Value
Reference Type	Shunt
Output Type	Adjustable
Voltage - Output (Min/Fixed)	1.233V
Voltage - Output (Max)	10 V
Current - Output	12 mA
Tolerance	±0.5%
Temperature Coefficient	100ppm/°C
Noise - 10Hz to 10kHz	20µVrms
Current - Cathode	80 µA
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	TO-236-3, SC-59, SOT-23-3
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LM4041CIDBZRG4 is determined by the following critical parameters:

Primary Substitution Criteria:

Reference Type: Shunt
Output Type: Adjustable
Voltage Output Range: 1.233V minimum, 10V maximum
Current Output: 12 mA
Tolerance: ±0.5%
Package: SOT-23-3
Operating Temperature Range: -40°C to 85°C minimum

Substitute Categories:

Direct Equivalents (Identical Electrical Performance):

LM4041CIM3-ADJ/NOPB: Active status, identical output voltage and tolerance, lower cathode current (65 µA vs 80 µA)
LM4041CIDBZR: Active status, identical specifications, higher inventory availability
LM4041CIDBZT: Active status, identical specifications, alternative tape format

Functional Equivalents (Compatible with Design Adjustments):

LM4051CIM3-ADJ/NOPB: Different minimum output voltage (1.212V vs 1.233V), lower temperature coefficient (50ppm/°C vs 100ppm/°C), active status
LM4051CIM3X-ADJ/NOPB: Same as LM4051CIM3-ADJ/NOPB with extended tape format

Extended Temperature Range Alternatives:

LM4041CEM3-ADJ/NOPB: Operating temperature -40°C to 125°C, identical output voltage and tolerance
LM4041DEM3-ADJ/NOPB: Operating temperature -40°C to 125°C, tolerance ±1% (relaxed), higher temperature coefficient (150ppm/°C)
LM4041DEM3X-ADJ/NOPB: Same as LM4041DEM3-ADJ/NOPB with extended tape format
LM4041DIM3-ADJ/NOPB: Operating temperature -40°C to 85°C, tolerance ±1%, higher temperature coefficient (150ppm/°C)
LM4041DIM3X-ADJ/NOPB: Same as LM4041DIM3-ADJ/NOPB with cut tape format

Parameter Comparison

Part Number	Status	Voltage Output (Min)	Tolerance	Temp Coeff	Cathode Current	Temp Range	Packaging
LM4041CIDBZRG4	Discontinued	1.233V	±0.5%	100ppm/°C	80 µA	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®
LM4041CIM3-ADJ/NOPB	Active	1.233V	±0.5%	100ppm/°C	65 µA	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®
LM4041CIDBZR	Active	1.233V	±0.5%	100ppm/°C	80 µA	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®
LM4041CIDBZT	Active	1.233V	±0.5%	100ppm/°C	80 µA	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®
LM4051CIM3-ADJ/NOPB	Active	1.212V	±0.5%	50ppm/°C	70 µA	-40°C ~ 85°C	Tape & Reel (TR)
LM4051CIM3X-ADJ/NOPB	Active	1.212V	±0.5%	50ppm/°C	70 µA	-40°C ~ 85°C	Tape & Reel (TR)
LM4041CEM3-ADJ/NOPB	Active	1.233V	±0.5%	100ppm/°C	68 µA	-40°C ~ 125°C	Cut Tape (CT) & Digi-Reel®
LM4041DEM3-ADJ/NOPB	Active	1.233V	±1%	150ppm/°C	73 µA	-40°C ~ 125°C	Tape & Reel (TR)
LM4041DEM3X-ADJ/NOPB	Active	1.233V	±1%	150ppm/°C	73 µA	-40°C ~ 125°C	Tape & Reel (TR)
LM4041DIM3-ADJ/NOPB	Active	1.233V	±1%	150ppm/°C	70 µA	-40°C ~ 85°C	Tape & Reel (TR)
LM4041DIM3X-ADJ/NOPB	Active	1.233V	±1%	150ppm/°C	70 µA	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

First Choice for Direct Replacement: LM4041CIDBZR is the primary substitute. It maintains identical electrical specifications to the discontinued LM4041CIDBZRG4, including output voltage (1.233V), tolerance (±0.5%), temperature coefficient (100ppm/°C), and operating temperature range (-40°C to 85°C). Product status is Active with high inventory availability (48,092 pcs). Both components are ROHS3 compliant and carry identical REACH and ECCN classifications.

Alternative for Identical Performance: LM4041CIM3-ADJ/NOPB provides identical output voltage and tolerance specifications with active status and substantial inventory (22,938 pcs). The cathode current is lower (65 µA vs 80 µA), which may reduce power consumption in applications where this parameter is not critical. Packaging format differs (Cut Tape & Digi-Reel vs alternative tape configuration).

For Extended Temperature Applications: LM4041CEM3-ADJ/NOPB extends the operating temperature range to -40°C to 125°C while maintaining the same output voltage (1.233V) and tolerance (±0.5%). This part is suitable for designs requiring higher temperature operation without tolerance degradation.

For Relaxed Tolerance Requirements: LM4041DIM3-ADJ/NOPB and LM4041DEM3-ADJ/NOPB accept ±1% tolerance instead of ±0.5%, with higher temperature coefficients (150ppm/°C). These parts are appropriate for applications where tighter tolerance is not required and cost optimization is a consideration. Extended temperature variants (LM4041DEM3-ADJ/NOPB, LM4041DEM3X-ADJ/NOPB) support -40°C to 125°C operation.

For Lower Temperature Coefficient: LM4051CIM3-ADJ/NOPB and LM4051CIM3X-ADJ/NOPB offer improved temperature stability (50ppm/°C vs 100ppm/°C) but with a different minimum output voltage (1.212V vs 1.233V). These parts are suitable only if the design can accommodate the lower reference voltage.

All recommended substitutes are ROHS3 compliant with MSL rating of 1 (Unlimited) and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Frequently Asked Questions (FAQ)

Q: Can LM4041CIDBZR directly replace LM4041CIDBZRG4 without circuit modifications?

A: Yes. LM4041CIDBZR is a parametric equivalent with identical electrical specifications: 1.233V output voltage, ±0.5% tolerance, 100ppm/°C temperature coefficient, 12 mA output current, and -40°C to 85°C operating range. Both use SOT-23-3 packaging. No circuit modifications are required.

Q: What is the difference between LM4041CIM3-ADJ/NOPB and LM4041CIDBZR?

A: Both maintain identical output voltage (1.233V) and tolerance (±0.5%). The primary difference is cathode current: LM4041CIM3-ADJ/NOPB draws 65 µA versus 80 µA for LM4041CIDBZR. This lower current consumption may benefit power-sensitive applications. Packaging format also differs (Cut Tape & Digi-Reel vs alternative tape configuration).

Q: Can I use LM4051CIM3-ADJ/NOPB as a substitute?

A: LM4051CIM3-ADJ/NOPB is functionally compatible only if your circuit design can accept a minimum output voltage of 1.212V instead of 1.233V. It offers superior temperature stability (50ppm/°C vs 100ppm/°C). Verify that the lower reference voltage does not affect downstream circuit performance before substitution.

Q: What is the advantage of LM4041CEM3-ADJ/NOPB over LM4041CIDBZR?

A: LM4041CEM3-ADJ/NOPB extends the operating temperature range to -40°C to 125°C while maintaining identical output voltage (1.233V) and tolerance (±0.5%). Select this part if your application requires operation above 85°C without tolerance degradation.

Q: Why do LM4041DIM3-ADJ/NOPB and LM4041DEM3-ADJ/NOPB have different tolerance specifications?

A: These parts are specified with ±1% tolerance instead of ±0.5%, and feature a higher temperature coefficient (150ppm/°C vs 100ppm/°C). They are cost-optimized alternatives suitable for applications where tighter tolerance is not required. Verify that your circuit design can accommodate the relaxed tolerance before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and identical REACH and ECCN classifications (EAR99) to the original LM4041CIDBZRG4.

Q: What packaging formats are available for these substitutes?

A: Substitutes are available in Cut Tape (CT) & Digi-Reel® format and Tape & Reel (TR) format. Verify your procurement and assembly process requirements before selecting a specific packaging variant.

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