TMCMA1C335MTRF Equivalent & Substitute Parts

Part Overview

The TMCMA1C335MTRF is a 3.3 µF molded tantalum capacitor manufactured by Vishay Sprague, rated for 16 V with ±20% tolerance in a 1206 (3216 Metric) surface mount package. This component is in active production status and is designed for general purpose applications requiring stable capacitance performance across the operating temperature range of -55°C to 125°C. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	3.3 µF
Voltage Rating	16 V
Tolerance	±20%
Package / Case	1206 (3216 Metric)
Type	Molded Tantalum
Mounting Type	Surface Mount
ESR @ 100kHz	4 Ohm
Operating Temperature	-55°C to 125°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TMCMA1C335MTRF are qualified based on the following critical parameters:

Capacitance Value: 3.3 µF (exact match required)
Voltage Rating: 16 V (minimum requirement; higher ratings are acceptable)
Package / Case: 1206 (3216 Metric) (physical and electrical compatibility)
Mounting Type: Surface Mount (PCB assembly compatibility)
Type: Molded Tantalum (material and construction consistency)
Operating Temperature Range: -55°C to 125°C (thermal performance envelope)
RoHS Compliance: ROHS3 Compliant (regulatory requirement)
MSL Rating: 1 (Unlimited) (moisture sensitivity compatibility)

Tolerance variations (±10% vs ±20%) and ESR differences within the specified range do not disqualify substitution when the primary electrical and mechanical parameters align. All substitute parts listed maintain compatibility with the original design requirements.

Parameter Comparison

Parameter	TMCMA1C335MTRF (Vishay Sprague)	CA45A016K335TA (XiangJiang)	T494A335M016AT (KEMET)	TCKIC335AT (Cal-Chip)	TCMIC335AT (Cal-Chip)
Manufacturer	Vishay Sprague	XiangJiang	KEMET	Cal-Chip Electronics, Inc.	Cal-Chip Electronics, Inc.
Capacitance	3.3 µF	3.3 µF	3.3 µF	3.3 µF	3.3 µF
Tolerance	±20%	±10%	±20%	±10%	±20%
Voltage Rating	16 V	16 V	16 V	16 V	16 V
Type	Molded	Molded	Molded	Molded	Molded
ESR	4 Ohm @ 100kHz	4.5 Ohm	4 Ohm @ 100kHz	5 Ohm	5 Ohm
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max)	0.071" (1.80mm)	0.071" (1.80mm)	0.071" (1.80mm)	0.071" (1.80mm)	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active production status and ROHS3 compliance, ensuring regulatory alignment with the original TMCMA1C335MTRF specification. The T494A335M016AT (KEMET) provides the closest electrical match with identical ESR characteristics (4 Ohm @ 100kHz) and ±20% tolerance, making it the primary substitute for direct replacement in applications where ESR performance is critical. The CA45A016K335TA (XiangJiang) offers improved tolerance (±10%) with marginally higher ESR (4.5 Ohm), suitable for applications where tighter capacitance control is beneficial. The TCKIC335AT and TCMIC335AT (Cal-Chip Electronics, Inc.) both feature higher ESR (5 Ohm) and are functionally equivalent for general purpose applications where ESR variation within this range is acceptable. All parts share identical physical dimensions, thermal operating range, and moisture sensitivity ratings, confirming mechanical and environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can I substitute the TMCMA1C335MTRF with any of these parts without PCB redesign?

A: Yes. All substitute parts share identical package dimensions (1206 / 3216 Metric), height specifications (0.071" maximum seated height), and surface mount footprints. No PCB layout modifications are required.

Q: What is the difference between ±10% and ±20% tolerance parts?

A: Tolerance specifies the allowable deviation from the nominal 3.3 µF capacitance value. ±10% tolerance parts (CA45A016K335TA, TCKIC335AT) maintain capacitance between 2.97 µF and 3.63 µF. ±20% tolerance parts (TMCMA1C335MTRF, T494A335M016AT, TCMIC335AT) maintain capacitance between 2.64 µF and 3.96 µF. Selection depends on circuit requirements for capacitance accuracy.

Q: How does ESR affect component selection?

A: Equivalent Series Resistance (ESR) impacts ripple current handling and frequency response. The TMCMA1C335MTRF and T494A335M016AT both specify 4 Ohm @ 100kHz. The CA45A016K335TA specifies 4.5 Ohm, while TCKIC335AT and TCMIC335AT specify 5 Ohm. Higher ESR values increase power dissipation in high-frequency applications. Selection should align with circuit impedance and ripple current specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification, matching the regulatory status of the original TMCMA1C335MTRF.

Q: What does MSL Rating 1 (Unlimited) mean?

A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts share this rating, confirming identical moisture sensitivity characteristics.

Q: Which substitute part is the best direct replacement?

A: The T494A335M016AT (KEMET) provides the closest electrical specification match with identical ESR (4 Ohm @ 100kHz) and tolerance (±20%), plus documented lifetime rating (2000 Hrs @ 125°C). It is the preferred substitute for applications requiring equivalent electrical performance.

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