Panasonic 4TAB100M Equivalent & Substitute Parts

Part Overview

The Panasonic 4TAB100M is a 100 µF molded tantalum polymer capacitor rated at 4 V with an ESR of 70 mOhm @ 100 kHz, housed in a 1411 (3528 Metric) surface mount package. This component is classified as Active and is suitable for general purpose applications requiring low equivalent series resistance and stable performance across the operating temperature range of -55°C to 105°C. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and packaging compatibility to ensure direct board-level interchangeability.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage - Rated	4 V
ESR (Equivalent Series Resistance)	70 mOhm @ 100 kHz
Type	Molded Tantalum Polymer
Package / Case	1411 (3528 Metric)
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 105°C
Tolerance	±20%
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the Panasonic 4TAB100M are qualified based on the following criteria:

Capacitance: 100 µF (exact match)
Voltage Rating: 4 V (exact match)
ESR: 70 mOhm @ 100 kHz (exact match)
Package / Case: 1411 (3528 Metric) (exact match)
Mounting Type: Surface Mount (exact match)
Operating Temperature Range: -55°C ~ 105°C (exact match)
Tolerance: ±20% (exact match)
Type: Molded Tantalum Polymer (exact match)

All substitute parts listed below meet these core electrical and mechanical parameters. Variations in physical height, lifetime ratings, and packaging format (Tape & Reel vs. Cut Tape) do not affect functional interchangeability in circuit applications.

Parameter Comparison

Parameter	Panasonic 4TAB100M	KEMET T520B107M004ATE070	KEMET T520T107M004ATE070	KEMET T591B107M004ATE070
Manufacturer	Panasonic Electronic Components	KEMET	KEMET	KEMET
Capacitance	100 µF	100 µF	100 µF	100 µF
Voltage - Rated	4 V	4 V	4 V	4 V
Tolerance	±20%	±20%	±20%	±20%
Type	Molded	Molded	Molded	Molded
ESR @ 100 kHz	70 mOhm	70 mOhm	70 mOhm	70 mOhm
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ Temp.	1000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	1411 (3528 Metric)	1411 (3528 Metric)	1411 (3528 Metric)	1411 (3528 Metric)
Size / Dimension	0.138" L x 0.110" W (4.60mm x 2.80mm)	0.138" L x 0.110" W (4.60mm x 2.80mm)	0.138" L x 0.110" W (4.60mm x 2.80mm)	0.138" L x 0.110" W (4.60mm x 2.80mm)
Height - Seated (Max)	0.083" (2.10mm)	0.079" (2.00mm)	0.047" (1.20mm)	0.083" (2.10mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

All substitute parts listed are Active status components and ROHS3 compliant, meeting the same regulatory and environmental standards as the Panasonic 4TAB100M. The KEMET T520B107M004ATE070 and T520T107M004ATE070 are supplied in Tape & Reel format, matching the original packaging specification. The KEMET T591B107M004ATE070 is available in Cut Tape and Digi-Reel format, suitable for applications where alternative packaging is acceptable.

The KEMET T520T107M004ATE070 features a reduced seated height of 0.047" (1.20mm) compared to the Panasonic original at 0.083" (2.10mm), providing a lower profile option for space-constrained designs while maintaining all electrical specifications. The KEMET T520B107M004ATE070 and T591B107M004ATE070 maintain the same 0.083" (2.10mm) height as the original part.

All substitute parts provide extended lifetime ratings of 2000 Hrs @ 105°C, compared to the Panasonic original at 1000 Hrs @ 105°C, offering improved reliability in high-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can KEMET T520B107M004ATE070 be used as a direct replacement for Panasonic 4TAB100M?

A: Yes. Both parts share identical electrical specifications (100 µF, 4 V, 70 mOhm ESR), mechanical dimensions (4.60mm x 2.80mm), and package type (1411 surface mount). The T520B is supplied in Tape & Reel format matching the original packaging. The seated height difference of 0.004" (0.10mm) is within typical PCB assembly tolerances.

Q: What is the difference between KEMET T520B107M004ATE070 and T520T107M004ATE070?

A: Both parts are electrically identical with matching capacitance, voltage, and ESR specifications. The primary difference is physical height: the T520B has a seated height of 0.079" (2.00mm), while the T520T is 0.047" (1.20mm). The T520T is suitable for applications requiring a lower profile component.

Q: Is the KEMET T591B107M004ATE070 compatible with the original Panasonic 4TAB100M?

A: Yes. The T591B meets all electrical and mechanical specifications. The primary difference is packaging format: it is supplied in Cut Tape and Digi-Reel format rather than standard Tape & Reel. This does not affect circuit functionality or board-level interchangeability.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the Panasonic 4TAB100M.

Q: Do the substitute parts have different moisture sensitivity levels?

A: The Panasonic 4TAB100M does not specify an MSL rating in the provided data. The KEMET substitute parts are rated MSL 3 (168 Hours), indicating standard moisture sensitivity for molded tantalum polymer capacitors.

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