RACF648NJT100R Equivalent & Substitute Parts

Part Overview

The RACF648NJT100R is an 8-resistor network array manufactured by Stackpole Electronics Inc, featuring 100 Ohm resistors in a 2512 (6432 Metric) surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Substitute parts must maintain electrical performance, mechanical compatibility, and environmental compliance specifications.

Substiute Parts

RACF648NJT100R

Stackpole Electronics IncIn Stock: 660RACF648NJT100R Datasheet

Current PartRFQ

745C101101JP

CTS Resistor ProductsIn Stock: 1008745C101101JP Datasheet

DirectRFQ

EXB-A10E101J

Panasonic Electronic ComponentsIn Stock: 731EXB-A10E101J Datasheet

DirectRFQ

EXB-A10P101J

Panasonic Electronic ComponentsIn Stock: 13028EXB-A10P101J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

• Resistance value: 100 Ohm (exact match required)
• Tolerance: ±5% (exact match required)
• Number of resistors: 8 (exact match required)
• Circuit type: Bussed (exact match required)
• Number of pins: 10 (exact match required)
• Package / Case: 2512 (6432 Metric) with long side terminals (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Acceptable variations within substitution criteria include power per element (62.5mW to 63mW), temperature coefficient (±200ppm/°C to ±250ppm/°C), and terminal geometry (concave or convex), provided all other parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—745C101101JP (CTS), EXB-A10E101J (Panasonic), and EXB-A10P101J (Panasonic)—are active products with full regulatory compliance. The RACF648NJT100R is obsolete, making these alternatives necessary for production continuity.

EXB-A10P101J is the primary recommended substitute. It matches the original part across all critical electrical and mechanical parameters, including resistance, tolerance, circuit topology, pin count, operating temperature range, and package geometry (concave terminals). This part is available in Tape & Reel packaging with the highest inventory level (12,932 pcs), supporting volume production requirements.

EXB-A10E101J is a secondary alternative with identical electrical specifications and operating temperature range. The primary distinction is terminal geometry (convex versus concave), which may require PCB layout verification. This part is supplied in Bulk packaging.

745C101101JP is a tertiary option from CTS Resistor Products. While electrically compatible, it exhibits a slightly higher temperature coefficient (±250ppm/°C versus ±200ppm/°C) and marginally increased power per element (63mW versus 62.5mW). Width dimension is 0.126" (3.20mm) compared to 0.122" (3.10mm) for the original, requiring PCB footprint confirmation. This part is available in Tape & Reel packaging.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring environmental and regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can EXB-A10E101J be used as a direct replacement for RACF648NJT100R?

A: EXB-A10E101J meets all electrical specifications and operating parameters. The terminal geometry differs (convex versus concave), requiring verification that PCB pads accommodate the convex profile without solder joint integrity issues.

Q: What is the significance of the temperature coefficient difference between RACF648NJT100R (±200ppm/°C) and 745C101101JP (±250ppm/°C)?

A: The 50ppm/°C difference represents acceptable tolerance drift variation. Selection depends on circuit-level temperature stability requirements. For applications with tight tolerance budgets, EXB-A10P101J or EXB-A10E101J maintain the original ±200ppm/°C specification.

Q: Are there packaging considerations when switching from RACF648NJT100R to substitute parts?

A: RACF648NJT100R was supplied in standard packaging. EXB-A10P101J is available in Tape & Reel (TR), suitable for automated assembly. EXB-A10E101J is supplied in Bulk. 745C101101JP is available in Tape & Reel. Confirm packaging compatibility with assembly processes.

Q: Does the 0.004" width difference in 745C101101JP affect PCB layout?

A: The CTS part measures 0.126" W (3.20mm) versus 0.122" W (3.10mm) for the original. PCB footprint pads must accommodate this dimension. Verify pad spacing and solder mask clearance before design release.

Q: Are all substitute parts RoHS and REACH compliant?

A: All substitute parts—EXB-A10P101J, EXB-A10E101J, and 745C101101JP—are ROHS3 compliant and REACH unaffected, matching the original RACF648NJT100R environmental certification status.

Q: Which substitute part offers the best long-term availability?

A: EXB-A10P101J, manufactured by Panasonic Electronic Components, is an active product with the highest current inventory (12,932 pcs) and established supply chain presence, supporting sustained production requirements.