Equivalent & Substitute Parts for 08M1003JF

Part Overview

The 08M1003JF is an NTC thermistor with 100kΩ resistance at 25°C, manufactured by Vishay Dale in a bead package configuration. This component is classified as not for new designs, indicating it has been superseded in the manufacturer's product line. For applications requiring continued supply or new designs, equivalent substitute parts with matching electrical characteristics and compatible packaging are necessary.

Substiute Parts

08M1003JF

Vishay DaleIn Stock: 85708M1003JF Datasheet

Current PartRFQ

ND03R00104J--

KYOCERA AVXIn Stock: 760ND03R00104J-- Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 08M1003JF is determined by the following critical parameters:

• Resistance value of 100kΩ at 25°C
• Resistance tolerance of ±5%
• NTC thermistor functional classification
• Lead wire length compatibility (1.38" to 1.42")
• Mounting configuration suitable for free hanging or through-hole applications

The substitute part ND03R00104J-- from KYOCERA AVX meets the primary electrical specification (100kΩ ±5%) and maintains compatible lead wire dimensions. While the package geometry differs (disc versus bead), both configurations support equivalent thermal sensing functionality in applications where form factor is not a critical constraint.

Parameter Comparison

Engineering Selection Recommendations

The ND03R00104J-- serves as a functional equivalent for the 08M1003JF based on matching resistance specifications and tolerance ratings. Selection between these parts should consider the following factors:

• The 08M1003JF is designated not for new designs; the ND03R00104J-- is active and suitable for new product development.
• RoHS compliance requirements differ: the original part is ROHS3 compliant, while the substitute is RoHS non-compliant. Applications subject to RoHS regulations must account for this distinction.
• Package geometry and mounting configuration differ. The bead form factor of the original part differs from the disc configuration of the substitute. Physical space constraints and PCB layout requirements must be evaluated.
• The substitute part provides specified operating temperature range (-55°C ~ 150°C) and power rating (250 mW), which are not documented for the original part.

Frequently Asked Questions (FAQ)

Q: Can the ND03R00104J-- directly replace the 08M1003JF in existing designs?

A: Electrical substitution is valid based on matching 100kΩ resistance and ±5% tolerance. However, physical package differences (bead versus disc) and mounting configuration changes (free hanging versus through hole) require mechanical design verification. Lead wire length is compatible (1.38" versus 1.42").

Q: What is the significance of the "Not For New Designs" status on the 08M1003JF?

A: This designation indicates the part has been superseded by the manufacturer and is no longer recommended for new product development. Existing inventory may be available, but new designs should specify active alternatives such as the ND03R00104J--.

Q: Are there RoHS compliance implications when substituting these parts?

A: Yes. The 08M1003JF is ROHS3 compliant, while the ND03R00104J-- is RoHS non-compliant. Applications requiring RoHS certification must verify regulatory requirements before implementing the substitute.

Q: How do the package differences affect thermal performance?

A: Both bead and disc configurations are designed for thermal sensing applications. The disc package (3.5mm diameter × 3.0mm width) provides a defined form factor, while the bead configuration offers flexibility in mounting orientation. Thermal response characteristics depend on application-specific thermal coupling methods.

Q: Is the lead wire length difference significant?

A: The difference of 0.04" (1.0mm) between the 08M1003JF (1.42") and ND03R00104J-- (1.38") is minimal and typically accommodated in standard PCB layouts. Verify lead wire length requirements for your specific application geometry.