4TPE150MAUB Equivalent & Substitute Parts

Part Overview

The 4TPE150MAUB is a 150 µF molded tantalum polymer capacitor rated at 4 V, manufactured by Panasonic Electronic Components as part of the POSCAP™ TPE series. This component is packaged in a 1411 (3528 Metric) case for surface mount applications. The part is designated as Not For New Designs, indicating it has been superseded in Panasonic's product line. Finding equivalent or substitute parts is necessary for ongoing support of legacy designs, maintenance applications, or when primary inventory is unavailable.

Substiute Parts

4TPE150MAUB

Panasonic Electronic ComponentsIn Stock: 8204TPE150MAUB Datasheet

Current PartRFQ

4TPE150MAZB

Panasonic Electronic ComponentsIn Stock: 13864TPE150MAZB Datasheet

DirectRFQ

6TPE150MAPB

Panasonic Electronic ComponentsIn Stock: 18536TPE150MAPB Datasheet

DirectRFQ

T55B157M004C0070

Vishay SpragueIn Stock: 816T55B157M004C0070 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 4TPE150MAUB is determined by the following critical parameters:

• Capacitance Value: 150 µF (exact match required)
• Voltage Rating: 4 V minimum (equal or higher voltage rating is acceptable)
• Package / Case: 1411 (3528 Metric) (physical compatibility required)
• Type: Molded Tantalum Polymer (technology class)
• Mounting Type: Surface Mount (assembly compatibility)
• Tolerance: ±20% (electrical specification)
• Operating Temperature Range: -55°C ~ 105°C (environmental compatibility)

Substitute parts are grouped into two categories based on voltage rating:

Category 1: Same Voltage Rating (4 V)

• 4TPE150MAZB (Panasonic, Active status)
• T55B157M004C0070 (Vishay Sprague, Active status)

Category 2: Higher Voltage Rating (6.3 V)

• 6TPE150MAPB (Panasonic, Active status)

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 4TPE150MAZB

The 4TPE150MAZB is the direct equivalent from Panasonic with identical electrical specifications (150 µF, 4 V, ±20% tolerance) and package dimensions. This part carries Active product status and is ROHS3 compliant. The ESR specification of 35 mOhm @ 100kHz is documented, providing better circuit performance characterization than the original part.

Alternative Substitute: T55B157M004C0070

The T55B157M004C0070 from Vishay Sprague meets all critical substitution parameters with matching capacitance, voltage rating, package, and operating temperature range. This part is Active and ROHS3 compliant. The higher ESR value of 70 mOhm @ 100kHz should be evaluated against circuit requirements for ripple current and thermal performance.

Higher Voltage Option: 6TPE150MAPB

The 6TPE150MAPB provides the same capacitance and package with an elevated voltage rating of 6.3 V. This part is suitable for applications where voltage margin is beneficial. The lower ESR of 25 mOhm @ 100kHz offers improved electrical performance. This option is appropriate only if the circuit design permits the higher voltage rating without adverse effects.

Frequently Asked Questions (FAQ)

Q: Can I use 6TPE150MAPB as a direct replacement for 4TPE150MAUB?

A: Yes, the 6TPE150MAPB is physically and electrically compatible. The higher voltage rating (6.3 V vs. 4 V) does not create compatibility issues in circuits designed for 4 V operation. The identical package (1411 / 3528 Metric), capacitance (150 µF), tolerance (±20%), and temperature range (-55°C ~ 105°C) ensure functional equivalence.

Q: What is the difference between the Panasonic and Vishay Sprague options?

A: Both manufacturers provide 150 µF, 4 V molded tantalum polymer capacitors in the 1411 package. The primary difference is ESR: the Panasonic 4TPE150MAZB specifies 35 mOhm @ 100kHz, while the Vishay T55B157M004C0070 specifies 70 mOhm @ 100kHz. Circuit applications with strict ripple current or thermal requirements should account for this ESR difference.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (4TPE150MAZB, 6TPE150MAPB, and T55B157M004C0070) are ROHS3 compliant, matching the compliance status of the original 4TPE150MAUB.

Q: What does "Not For New Designs" mean for the original part?

A: This designation indicates that Panasonic has discontinued the 4TPE150MAUB for new product development. Active substitute parts should be used for new designs. Existing designs using the 4TPE150MAUB can continue with equivalent parts for ongoing production and support.

Q: Do the substitute parts have the same physical dimensions?

A: Yes, all substitute parts use the 1411 (3528 Metric) package with identical length (0.138" / 4.60 mm) and width (0.110" / 2.80 mm). The T55B157M004C0070 has a maximum seated height of 0.083" (2.10 mm) compared to 0.079" (2.00 mm) for the Panasonic parts, a difference of 0.010" (0.10 mm) that is typically negligible for PCB assembly.