TPL-38/12X46F Equivalent & Substitute Parts

Part Overview

The TPL-38/12X46F is a 38 F (EDLC) supercapacitor rated at 2.7 V with radial, can-style through-hole termination. This component is classified as obsolete, making equivalent substitutes necessary for ongoing system support and new designs. The part features 19 mOhm equivalent series resistance at 1 kHz and a rated lifetime of 1000 hours at 85°C. Identification of compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

TPL-38/12X46F

Tecate GroupIn Stock: 828TPL-38/12X46F Datasheet

Current PartRFQ

TPL-40/12X46F

Tecate GroupIn Stock: 1406TPL-40/12X46F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPL-38/12X46F is determined by strict equivalence across the following critical parameters:

• Capacitance tolerance band: The substitute must fall within the -10%, +20% tolerance specification
• Voltage rating: Minimum 2.7 V rated voltage
• ESR specification: 19 mOhm @ 1 kHz maximum
• Thermal lifetime: 1000 Hrs @ 85°C minimum
• Mounting and package: Through-hole radial can configuration with identical lead spacing (0.209" / 5.30 mm) and physical dimensions (0.492" Dia / 12.50 mm, 1.870" height max)
• Termination type: PC pins required
• Compliance: ROHS3 compliant, REACH unaffected

The TPL-40/12X46F meets all substitution criteria. The 40 F capacitance value remains within acceptable tolerance margins for applications designed around the 38 F nominal specification, while maintaining identical electrical performance, thermal ratings, and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The TPL-40/12X46F is the direct substitute for the obsolete TPL-38/12X46F. Both components are manufactured by Tecate Group within the TPL series and share identical electrical specifications, thermal performance, and physical form factors. The substitute maintains ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

The primary distinction is product status: TPL-40/12X46F is active with 1335 units in stock, whereas TPL-38/12X46F is obsolete. The 2 F capacitance increase (38 F to 40 F) falls within the tolerance band of the original specification and does not introduce incompatibility for applications designed around the 38 F nominal value.

Frequently Asked Questions (FAQ)

Q: Can the TPL-40/12X46F directly replace the TPL-38/12X46F in existing designs?

A: Yes. Both components share identical voltage rating (2.7 V), ESR (19 mOhm @ 1 kHz), thermal lifetime (1000 Hrs @ 85°C), mounting type (through-hole), package configuration (radial can), lead spacing (0.209" / 5.30 mm), and physical dimensions. The 40 F capacitance is within acceptable tolerance margins for applications specified around 38 F.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Regulatory requirements are identical.

Q: What is the significance of the capacitance difference between 38 F and 40 F?

A: The 2 F increase represents a 5.3% nominal change. Given the -10%, +20% tolerance specification common to both parts, this difference falls within the acceptable operating range and does not affect circuit compatibility or performance.

Q: Is the TPL-40/12X46F available for immediate procurement?

A: Yes. The substitute part is active with 1335 units in stock, ensuring supply chain availability compared to the obsolete TPL-38/12X46F.

Q: Are the physical dimensions identical for PCB layout purposes?

A: Yes. Lead spacing (0.209" / 5.30 mm), diameter (0.492" / 12.50 mm), and maximum seated height (1.870" / 47.50 mm) are identical. No PCB redesign is required.