TL4051BIDCKT Equivalent & Substitute Parts

Part Overview

The TL4051BIDCKT is a shunt voltage reference IC manufactured by Texas Instruments, designed for precision micropower applications requiring adjustable output voltage. This component operates as an adjustable shunt regulator with a fixed output voltage of 1.212V and maximum output current of 12 mA, packaged in SC-70-5 (5-TSSOP) surface mount configuration. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

TL4051BIDCKT

Texas InstrumentsIn Stock: 854TL4051BIDCKT Datasheet

Current PartRFQ

LM4041CIM7-ADJ/NOPB

National SemiconductorIn Stock: 15017LM4041CIM7-ADJ/NOPB Datasheet

MFR RecommendedRFQ

LM4041CIM7X-ADJ/NOPB

Texas InstrumentsIn Stock: 3321LM4041CIM7X-ADJ/NOPB Datasheet

MFR RecommendedRFQ

LM4041DIM7-ADJ/NOPB

Texas InstrumentsIn Stock: 8317LM4041DIM7-ADJ/NOPB Datasheet

MFR RecommendedRFQ

LM4041DIM7X-ADJ/NOPB

Texas InstrumentsIn Stock: 6731LM4041DIM7X-ADJ/NOPB Datasheet

MFR RecommendedRFQ

TL4051BIDCKR

Texas InstrumentsIn Stock: 3447TL4051BIDCKR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL4051BIDCKT is determined by strict adherence to the following electrical and mechanical parameters:

Critical Compatibility Parameters:

• Reference Type: Shunt (all substitutes must be shunt-type references)
• Output Type: Adjustable (maintains voltage adjustment capability)
• Package / Case: 5-TSSOP, SC-70-5, SOT-353 (ensures PCB footprint compatibility)
• Mounting Type: Surface Mount (maintains assembly process compatibility)
• Operating Temperature Range: -40°C ~ 85°C (TA) (all substitutes must support this range)
• Current - Output: 12 mA (maximum output current specification)
• Voltage - Output (Max): 10 V (maximum output voltage specification)

Tolerance and Performance Parameters: Substitutes are grouped based on tolerance specifications. The TL4051BIDCKT operates at ±0.2% tolerance with 50ppm/°C temperature coefficient. Substitutes with relaxed tolerance (±0.5% or ±1%) are acceptable where application requirements permit, as they maintain the same functional output range and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): TL4051BIDCKR is the primary substitute for TL4051BIDCKT. Both parts share identical electrical specifications (1.212V output, ±0.2% tolerance, 50ppm/°C temperature coefficient, 65 µA cathode current) and package configuration. The only difference is packaging format: TL4051BIDCKR is supplied in Tape & Reel (TR) format versus the discontinued part's standard packaging. This part maintains full compatibility with existing designs and is currently in active production status with 3400 units in stock.

Manufacturer Recommended Substitutes (LM4041 Series): The LM4041 series from Texas Instruments and National Semiconductor provides functional equivalence with relaxed tolerance specifications. These parts are grouped by tolerance grade:

LM4041CIM7-ADJ/NOPB and LM4041CIM7X-ADJ/NOPB operate at ±0.5% tolerance with 100ppm/°C temperature coefficient. Both maintain 1.233V output voltage, 12 mA output current, and SC-70-5 package compatibility. LM4041CIM7X-ADJ/NOPB is supplied in Cut Tape (CT) & Digi-Reel format with 3216 units available.

LM4041DIM7-ADJ/NOPB and LM4041DIM7X-ADJ/NOPB operate at ±1% tolerance with 150ppm/°C temperature coefficient and 70 µA cathode current. These represent the most relaxed tolerance grade while maintaining output voltage range and current specifications. LM4041DIM7X-ADJ/NOPB is available in Cut Tape format with 6629 units in stock.

All substitute parts are ROHS3 compliant, MSL Level 1, and support the full -40°C to 85°C operating temperature range. Selection should be based on application tolerance requirements and packaging format availability.

Frequently Asked Questions (FAQ)

Q: Can LM4041 series parts directly replace TL4051BIDCKT in existing designs? A: Yes, all listed LM4041 substitutes maintain mechanical compatibility through identical SC-70-5 package configuration and electrical compatibility through matching output voltage range (1.212V to 10V) and output current (12 mA). Tolerance and temperature coefficient differences must be evaluated against specific application requirements.

Q: What is the difference between TL4051BIDCKT and TL4051BIDCKR? A: Both parts are electrically identical with 1.212V output, ±0.2% tolerance, and 50ppm/°C temperature coefficient. The difference is packaging format: TL4051BIDCKR is supplied in Tape & Reel format for automated assembly, while TL4051BIDCKT uses standard packaging. TL4051BIDCKR is the recommended direct replacement.

Q: How do tolerance differences affect substitution? A: TL4051BIDCKT operates at ±0.2% tolerance. LM4041CIM7 variants offer ±0.5% tolerance, and LM4041DIM7 variants offer ±1% tolerance. Applications requiring precision voltage reference performance should use TL4051BIDCKR (±0.2%) or LM4041CIM7 variants (±0.5%). Applications with relaxed tolerance requirements may use LM4041DIM7 variants (±1%).

Q: Are all substitute parts currently available? A: Yes. TL4051BIDCKR (3400 units), LM4041CIM7-ADJ/NOPB (14987 units), LM4041CIM7X-ADJ/NOPB (3216 units), LM4041DIM7-ADJ/NOPB (8300 units), and LM4041DIM7X-ADJ/NOPB (6629 units) are all in active production with current inventory.

Q: What packaging formats are available for substitutes? A: TL4051BIDCKR is supplied in Tape & Reel (TR) format. LM4041CIM7-ADJ/NOPB is supplied in Bulk packaging. LM4041CIM7X-ADJ/NOPB and LM4041DIM7X-ADJ/NOPB are supplied in Cut Tape (CT) & Digi-Reel format. All maintain identical SC-70-5 footprint compatibility.

Q: Do all substitutes meet RoHS and MSL requirements? A: All listed substitutes are ROHS3 compliant and MSL Level 1 (Unlimited moisture sensitivity). These specifications match the original TL4051BIDCKT requirements for environmental and regulatory compliance.