TAAD157K010G Equivalent & Substitute Parts

Part Overview

The TAAD157K010G is a 150 µF hermetically sealed tantalum capacitor rated at 10 V with axial through-hole mounting. Manufactured by KYOCERA AVX in the TAA series, this component is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, equivalent substitute parts from active product lines are necessary to maintain design continuity and ensure long-term supply chain reliability.

Key Parameters

Parameter	Value
Capacitance	150 µF
Tolerance	±10%
Voltage - Rated	10 V
Type	Hermetically Sealed
ESR (Equivalent Series Resistance)	800 mOhm
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Axial
Size / Dimension	0.354" Dia x 0.783" L (9.00 mm x 19.90 mm)
Features	Wet Tantalum
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the TAAD157K010G is determined by the following critical parameters:

Direct Equivalents (Same Voltage Rating - 10 V):

Capacitance: 150 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage Rating: 10 V (exact match required)
Type: Hermetically Sealed (exact match required)
Mounting: Through Hole Axial (exact match required)

Direct equivalent parts maintain identical electrical specifications and are physically compatible with the original design. These parts are sourced from Vishay Sprague's active product lines.

Upgrade Options (Higher Voltage Rating - 30 V or 60 V):

Capacitance: 150 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage Rating: 30 V or 60 V (higher rating provides design margin)
Type: Hermetically Sealed (exact match required)
Mounting: Through Hole Axial (exact match required)

Upgrade parts with higher voltage ratings are electrically compatible and provide additional safety margin in applications. Physical dimensions may vary within acceptable through-hole mounting constraints.

Alternative Type (Molded Tantalum):

Capacitance: 150 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage Rating: 10 V (exact match required)
Type: Molded (alternative construction)
Mounting: Through Hole Axial (exact match required)

The molded tantalum alternative offers RoHS3 compliance and represents a different construction technology while maintaining core electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	ESR	Type	Size (Dia x L)	Temp Range	Product Status	RoHS Status
TAAD157K010G	KYOCERA AVX	TAA	150 µF	10 V	800 mOhm	Hermetically Sealed	0.354" x 0.783"	-55°C to 125°C	Obsolete	Non-compliant
109D157X9010C2	Vishay Sprague	TANTALEX™ 109D	150 µF	10 V	3 Ohm	Hermetically Sealed	0.219" x 0.608"	-55°C to 125°C	Active	Non-compliant
135D157X9010C2	Vishay Sprague	135D	150 µF	10 V	3 Ohm	Hermetically Sealed	0.203" x 0.453"	-55°C to 125°C	Active	Non-compliant
135D157X9010C6	Vishay Sprague	135D	150 µF	10 V	3 Ohm	Hermetically Sealed	0.203" x 0.453"	-55°C to 200°C	Active	Non-compliant
109D157X9030F2	Vishay Sprague	TANTALEX™ 109D	150 µF	30 V	2.5 Ohm	Hermetically Sealed	0.312" x 0.796"	-55°C to 125°C	Active	Non-compliant
135D157X9030F2	Vishay Sprague	135D	150 µF	30 V	2.5 Ohm	Hermetically Sealed	0.296" x 0.641"	-55°C to 125°C	Active	Non-compliant
135D157X9030F6	Vishay Sprague	135D	150 µF	30 V	2.5 Ohm	Hermetically Sealed	0.296" x 0.641"	-55°C to 200°C	Active	Non-compliant
135D157X9030T2	Vishay Sprague	135D	150 µF	30 V	2.3 Ohm	Hermetically Sealed	0.390" x 0.766"	-55°C to 125°C	Active	Non-compliant
135D157X9030T6	Vishay Sprague	135D	150 µF	30 V	2.3 Ohm	Hermetically Sealed	0.390" x 0.766"	-55°C to 200°C	Active	Non-compliant
ST150-60T2KI	Vishay Sprague	SuperTan® ST	150 µF	60 V	1.1 Ohm	Hermetically Sealed	0.312" x 0.641"	-55°C to 125°C	Active	Non-compliant
173D157X9010YE3	Vishay Sprague	TANTALEX™ 173D	150 µF	10 V	Not specified	Molded	0.280" x 0.550"	-55°C to 125°C	Active	RoHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications):

Use 109D157X9010C2 or 135D157X9010C2 when the original 10 V rating and hermetically sealed construction are required. Both parts are from active Vishay Sprague product lines and maintain identical capacitance, voltage, tolerance, and mounting configuration. The 135D157X9010C6 variant extends the operating temperature range to 200°C if thermal margin is needed.

For Upgraded Voltage Rating (Design Margin):

Use 109D157X9030F2, 135D157X9030F2, 135D157X9030T2, or ST150-60T2KI when higher voltage ratings provide beneficial design margin. These parts maintain the 150 µF capacitance and ±10% tolerance while offering 30 V or 60 V ratings. The ST150-60T2KI (60 V, 1.1 Ohm ESR) provides the lowest ESR among upgrade options. Temperature-rated variants (F6, T6) extend operation to 200°C.

For RoHS3 Compliance:

Use 173D157X9010YE3 (molded tantalum, 10 V) when regulatory compliance with RoHS3 is required. This part maintains the 150 µF capacitance and 10 V rating in a molded construction with active product status.

Inventory Availability:

All recommended substitute parts are in active production status with confirmed inventory availability ranging from 764 to 1168 pieces.

Frequently Asked Questions (FAQ)

Q: Can I use a 30 V or 60 V rated capacitor in place of the 10 V TAAD157K010G?

A: Yes. Higher voltage-rated capacitors are electrically compatible in circuits designed for 10 V operation. The capacitance (150 µF) and tolerance (±10%) remain identical. Higher voltage ratings provide additional safety margin and do not degrade circuit performance.

Q: What is the difference between hermetically sealed and molded tantalum capacitors?

A: Hermetically sealed tantalum capacitors use a metal can enclosure and are classified as wet tantalum. Molded tantalum capacitors use a plastic enclosure and are classified as general purpose. Both maintain the same electrical specifications (150 µF, ±10%, 10 V) but differ in construction, size, and compliance certifications. The molded variant (173D157X9010YE3) offers RoHS3 compliance.

Q: Are there physical size constraints when substituting the TAAD157K010G?

A: The original part measures 0.354" diameter x 0.783" length. Direct equivalents (109D157X9010C2, 135D157X9010C2) are smaller. Upgrade parts with 30 V ratings vary in size. All substitute parts maintain through-hole axial mounting and are compatible with standard PCB layouts designed for axial components. Verify PCB footprint clearance for specific applications.

Q: Why is the TAAD157K010G obsolete?

A: The TAAD157K010G is classified as obsolete by KYOCERA AVX. Active equivalent products from Vishay Sprague's TANTALEX™ and 135D series provide continued supply and support for this capacitance and voltage specification.

Q: What does ESR (Equivalent Series Resistance) mean for capacitor selection?

A: ESR represents the internal resistance of the capacitor. Lower ESR values (measured in milliohms or ohms) indicate better high-frequency performance and lower heat generation. The original TAAD157K010G has 800 mOhm ESR. Substitute parts range from 1.1 Ohm (ST150-60T2KI) to 3 Ohm (109D157X9010C2, 135D157X9010C2). For applications sensitive to ESR, the ST150-60T2KI offers superior performance.

Q: Can I use the 173D157X9010YE3 molded tantalum as a direct replacement?

A: The 173D157X9010YE3 maintains identical electrical specifications (150 µF, ±10%, 10 V) and through-hole axial mounting. It is physically smaller (0.280" x 0.550") and offers RoHS3 compliance. Molded construction differs from the original hermetically sealed design. Verify application requirements for construction type compatibility before substitution.

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