Equivalent & Substitute Parts for THF107K020P1G

Part Overview

The Cornell Dubilier Electronics THF107K020P1G is a 100 µF hermetically sealed tantalum capacitor rated at 20 V with axial through-hole mounting. This component is classified as obsolete, necessitating identification of active substitute parts that maintain functional equivalence within specified electrical and mechanical parameters. Substitute parts must satisfy the core electrical requirements: 100 µF capacitance at ±10% tolerance, hermetically sealed construction, axial package configuration, and through-hole mounting compatibility.

Key Parameters

Parameter	Value	Criticality for Substitution
Capacitance	100 µF	Must Match
Tolerance	±10%	Must Match
Voltage Rating	20 V	Minimum (Higher Acceptable)
Type	Hermetically Sealed Tantalum	Must Match
Mounting Type	Through Hole Axial	Must Match
Operating Temperature Range	-55°C to 125°C	Minimum (Extended Range Acceptable)
ESR (Equivalent Series Resistance)	75 mOhm	Reference (Lower Values Acceptable)

Substitute Part Grouping Explanation

Substitution logic is based on the following criteria derived from provided parameters:

Mandatory Matching Parameters:

Capacitance: 100 µF (exact match required)
Tolerance: ±10% (exact match required)
Type: Hermetically sealed tantalum construction (exact match required)
Mounting: Through-hole axial configuration (exact match required)

Acceptable Variation Parameters:

Voltage Rating: Substitute parts rated at 25 V, 30 V, 50 V, or 60 V are acceptable as they exceed the 20 V requirement of the main part
Operating Temperature: Substitute parts with extended temperature ranges (-55°C to 200°C) are acceptable as they encompass the original -55°C to 125°C range
ESR: Substitute parts with lower ESR values (2.5 mOhm to 4 Ohm) are acceptable as they represent improved performance characteristics

All substitute parts listed are manufactured by Vishay Sprague and carry active product status, ensuring ongoing availability and supply chain continuity.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	ESR	Operating Temp Range	Package	Status	Inventory
THF107K020P1G	Cornell Dubilier	100 µF	±10%	20 V	75 mOhm	-55°C to 125°C	Axial	Obsolete	926 Pcs
109D107X9025F2	Vishay Sprague	100 µF	±10%	25 V	4 Ohm	-55°C to 125°C	Axial	Active	913 Pcs
109D107X9060F2	Vishay Sprague	100 µF	±10%	60 V	2.5 Ohm	-55°C to 125°C	Axial	Active	780 Pcs
135D107X9025F2	Vishay Sprague	100 µF	±10%	25 V	2.8 Ohm	-55°C to 125°C	Axial	Active	1123 Pcs
135D107X9025F6	Vishay Sprague	100 µF	±10%	25 V	2.8 Ohm	-55°C to 200°C	Axial	Active	835 Pcs
135D107X9030T2	Vishay Sprague	100 µF	±10%	30 V	2.7 Ohm	-55°C to 125°C	Axial	Active	983 Pcs
135D107X9030T6	Vishay Sprague	100 µF	±10%	30 V	2.7 Ohm	-55°C to 200°C	Axial	Active	882 Pcs
135D107X9050F2	Vishay Sprague	100 µF	±10%	50 V	2.8 Ohm	-55°C to 125°C	Axial	Active	1107 Pcs
135D107X9050F6	Vishay Sprague	100 µF	±10%	50 V	2.8 Ohm	-55°C to 200°C	Axial	Active	990 Pcs
135D107X9060F2	Vishay Sprague	100 µF	±10%	60 V	2.5 Ohm	-55°C to 125°C	Axial	Active	953 Pcs
135D107X9060F6	Vishay Sprague	100 µF	±10%	60 V	2.5 Ohm	-55°C to 200°C	Axial	Active	1244 Pcs

Engineering Selection Recommendations

Primary Selection Criteria:

All listed substitute parts satisfy the mandatory electrical and mechanical requirements for direct replacement of the THF107K020P1G. Selection among active alternatives is determined by application-specific requirements:

For Standard Operating Conditions (-55°C to 125°C):

135D107X9025F2: 25 V rating, 2.8 Ohm ESR, compact F-size package
135D107X9030T2: 30 V rating, 2.7 Ohm ESR, larger T-size package
135D107X9050F2: 50 V rating, 2.8 Ohm ESR, compact F-size package
135D107X9060F2: 60 V rating, 2.5 Ohm ESR, compact F-size package
109D107X9025F2: 25 V rating, 4 Ohm ESR, TANTALEX series
109D107X9060F2: 60 V rating, 2.5 Ohm ESR, TANTALEX series

For Extended Temperature Applications (-55°C to 200°C):

135D107X9025F6: 25 V rating, 2.8 Ohm ESR
135D107X9030T6: 30 V rating, 2.7 Ohm ESR
135D107X9050F6: 50 V rating, 2.8 Ohm ESR
135D107X9060F6: 60 V rating, 2.5 Ohm ESR

Compliance Status: All substitute parts maintain RoHS non-compliant status consistent with the original part. All parts carry REACH Unaffected designation and EAR99 ECCN classification, matching the regulatory profile of the original component.

Frequently Asked Questions (FAQ)

Q: Can any of these substitute parts be used as a direct replacement for THF107K020P1G?

A: Yes. All listed Vishay Sprague parts satisfy the mandatory substitution criteria: 100 µF capacitance, ±10% tolerance, hermetically sealed tantalum construction, and through-hole axial mounting. Physical dimensions vary between F-size and T-size packages; verify PCB layout compatibility before selection.

Q: What is the difference between F-size and T-size packages?

A: F-size packages measure 0.296" diameter × 0.641" length (7.52 mm × 16.28 mm). T-size packages measure 0.390" diameter × 0.766" length (9.91 mm × 19.46 mm). T-size packages accommodate higher voltage ratings (30 V) within the same capacitance specification. Verify available PCB footprint space before selecting T-size alternatives.

Q: Why do some parts have higher voltage ratings than the original 20 V specification?

A: Higher voltage ratings (25 V, 30 V, 50 V, 60 V) are acceptable substitutes because they exceed the minimum 20 V requirement. Circuits designed for 20 V operation function correctly with higher-rated components. Higher voltage ratings do not affect circuit performance in applications operating below the rated voltage.

Q: What does the "6" suffix in part numbers like 135D107X9060F6 indicate?

A: The "6" suffix designates extended operating temperature range (-55°C to 200°C) compared to standard range parts (-55°C to 125°C). Select temperature-rated variants based on application thermal requirements.

Q: How do ESR values affect component selection?

A: ESR (Equivalent Series Resistance) values provided are reference specifications. All substitute parts exhibit lower ESR than the original 75 mOhm specification, representing improved electrical performance. Lower ESR reduces heat generation and improves high-frequency response characteristics.

Q: Are all substitute parts currently in active production?

A: Yes. All listed Vishay Sprague parts carry active product status, ensuring ongoing manufacturing and supply availability. The original THF107K020P1G is classified as obsolete and no longer manufactured.

Q: What inventory levels are available for each substitute part?

A: Inventory quantities range from 780 to 1244 pieces across the substitute part list. 135D107X9060F6 maintains the highest inventory level at 1244 pieces. Verify current stock status with supplier before finalizing procurement decisions.

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