Equivalent & Substitute Parts for 07C1003JF

Part Overview

The 07C1003JF is an NTC thermistor manufactured by Vishay Dale, featuring a 100kΩ resistance at 25°C in a bead package configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is RoHS3 compliant and suitable for free-hanging mounting applications requiring temperature sensing functionality.

Substiute Parts

07C1003JF

Vishay DaleIn Stock: 89307C1003JF Datasheet

Current PartRFQ

B57861S0104F040V24

EPCOS - TDK ElectronicsIn Stock: 18051B57861S0104F040V24 Datasheet

MFR RecommendedRFQ

ND03R00104J--

KYOCERA AVXIn Stock: 760ND03R00104J-- Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 07C1003JF is determined by the following core parameters:

• Resistance value at 25°C: 100kΩ (exact match required)
• Resistance tolerance: ±5% or tighter
• Package type: Bead configuration
• Mounting compatibility: Free-hanging or through-hole capable
• RoHS compliance status: RoHS3 compliant preferred for regulatory alignment

The two substitute parts listed meet the primary electrical specification (100kΩ resistance) and maintain compatibility with the original application requirements. Both substitutes are active products with current manufacturing status, ensuring long-term availability.

Parameter Comparison

Engineering Selection Recommendations

B57861S0104F040V24 (EPCOS - TDK Electronics) is the primary substitute for applications requiring RoHS3 compliance and tighter tolerance specifications. This part maintains bead package geometry with free-hanging mounting capability, ensuring mechanical compatibility with the original 07C1003JF. The ±1% resistance tolerance and ±1% B value tolerance provide superior accuracy compared to the original specification. Operating temperature range extends to 155°C, supporting broader thermal application requirements.

ND03R00104J-- (KYOCERA AVX) serves as an alternative substitute where higher power dissipation capacity (250 mW versus 60 mW) is required. This part features a disc package configuration rather than bead geometry, necessitating mechanical design review for mounting compatibility. RoHS non-compliance status requires verification against applicable regulatory requirements for the end application. The ±5% resistance tolerance matches the original specification, though B value tolerance is ±2%.

For new designs and procurement requiring regulatory compliance, B57861S0104F040V24 is the recommended primary selection. ND03R00104J-- is suitable where mechanical package differences are accommodated and RoHS compliance is not mandated.

Frequently Asked Questions (FAQ)

Q: Can B57861S0104F040V24 be used as a direct replacement for 07C1003JF?

A: Yes. Both parts share identical 100kΩ resistance at 25°C, bead package configuration, and free-hanging mounting type. Lead wire length differs by 0.06" (1.50mm), which is negligible for most applications. B57861S0104F040V24 offers improved tolerance specifications and active product status.

Q: What is the primary difference between the two substitute parts?

A: B57861S0104F040V24 maintains bead package geometry identical to the original part, while ND03R00104J-- uses a disc package (4.6mm diameter × 3.0mm width). This package difference affects mechanical mounting and thermal coupling characteristics. ND03R00104J-- also provides higher maximum power dissipation (250 mW versus 60 mW).

Q: Does RoHS compliance status affect substitution eligibility?

A: RoHS compliance is a regulatory requirement dependent on end-application jurisdiction and customer specifications. B57861S0104F040V24 maintains RoHS3 compliance matching the original part. ND03R00104J-- is RoHS non-compliant and requires compliance verification before selection.

Q: Are the tolerance specifications of the substitutes compatible with the original design?

A: Yes. Both substitutes meet or exceed the original ±5% resistance tolerance. B57861S0104F040V24 provides tighter ±1% tolerance, while ND03R00104J-- matches the original ±5% specification. Tighter tolerances do not create incompatibility; they provide improved accuracy.

Q: What is the significance of B value tolerance in thermistor selection?

A: B value tolerance defines the accuracy of the thermistor's temperature-resistance characteristic curve. B57861S0104F040V24 specifies ±1% B value tolerance with B25/100 = 4540K, while ND03R00104J-- specifies ±2% tolerance with B25/85 = 4400K. These parameters determine temperature measurement accuracy in thermal sensing applications.