LM4041DILPR Equivalent & Substitute Parts

Part Overview

The LM4041DILPR is a shunt voltage reference IC with adjustable output, manufactured by Texas Instruments. It provides a fixed minimum output of 1.233V with adjustable maximum output up to 10V, delivering 12mA output current with ±1% tolerance. The device is packaged in TO-92-3 (through-hole) configuration and operates across the industrial temperature range of -40°C to 85°C. This part is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is essential for design continuity and long-term supply chain planning.

Substiute Parts

LM4041DILPR

Texas InstrumentsIn Stock: 3225LM4041DILPR Datasheet

Current PartRFQ

LM4041DIDBZR

Texas InstrumentsIn Stock: 16415LM4041DIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM4041DILPR is determined by matching the following critical electrical and functional parameters:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 1.233V
• Voltage - Output (Max): 10V
• Current - Output: 12mA
• Tolerance: ±1%
• Temperature Coefficient: 150ppm/°C
• Noise - 10Hz to 10kHz: 20µVrms
• Current - Cathode: 80µA
• Operating Temperature: -40°C to 85°C
• Base Product Number: LM4041

The LM4041DIDBZR qualifies as a direct functional equivalent. While it differs in mounting technology (surface mount SOT-23-3 versus through-hole TO-92-3) and product status (Active versus Last Time Buy), all electrical specifications and performance characteristics remain identical. This substitution is valid when PCB layout and assembly capabilities support surface-mount technology.

Parameter Comparison

Engineering Selection Recommendations

The LM4041DIDBZR is the primary substitute for the LM4041DILPR. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The LM4041DIDBZR holds Active product status, ensuring continued availability and supply chain stability compared to the Last Time Buy designation of the main part.

Selection between these parts depends on PCB design constraints. The LM4041DILPR requires through-hole assembly and is suitable for legacy designs or applications where through-hole mounting is specified. The LM4041DIDBZR requires surface-mount assembly capability and is recommended for new designs due to its active status and higher inventory availability (16,352 pcs versus 3,147 pcs).

Both parts deliver identical electrical performance across all specified parameters, including output voltage range, current capacity, tolerance, temperature coefficient, and noise characteristics. No functional degradation occurs when substituting between these variants.

Frequently Asked Questions (FAQ)

Q: Can LM4041DIDBZR replace LM4041DILPR in existing designs?

A: Electrical substitution is complete. The LM4041DIDBZR provides identical voltage reference performance. However, PCB layout modification is required due to package differences (SOT-23-3 surface mount versus TO-92-3 through hole). Schematic functionality remains unchanged.

Q: What are the key differences between these parts?

A: The primary differences are mounting technology and product lifecycle status. LM4041DILPR uses through-hole TO-92-3 packaging and is Last Time Buy. LM4041DIDBZR uses surface-mount SOT-23-3 packaging and maintains Active status. All electrical specifications are identical.

Q: Are there any compliance or certification differences?

A: Both parts carry identical compliance certifications: ROHS3 compliant and REACH unaffected. No regulatory differences exist between the two variants.

Q: Which part should be selected for new designs?

A: The LM4041DIDBZR is recommended for new designs. It maintains Active product status, ensuring long-term availability and supply continuity. The LM4041DILPR should be reserved for legacy design maintenance only.

Q: Do these parts require different circuit design approaches?

A: No. Both parts function identically in circuit design. The adjustable output voltage range (1.233V to 10V), output current (12mA), and all performance characteristics remain constant. Only PCB layout and assembly processes differ.