RACF164DFT56R2 Equivalent & Substitute Parts

Part Overview

The RACF164DFT56R2 is a 56.2 Ohm isolated 4-resistor network array manufactured by Stackpole Electronics Inc in 1206 (3216 Metric) package format. This component features ±1% tolerance, 62.5mW power per element, and ±200ppm/°C temperature coefficient, qualified for automotive applications under AEC-Q200. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Resistance	56.2 Ohm
Tolerance	±1%
Number of Resistors	4
Circuit Type	Isolated
Power Per Element	62.5mW
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Package / Case	1206 (3216 Metric), Concave, Long Side Terminals
Number of Pins	8
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RACF164DFT56R2 is determined by the following critical parameters:

Resistance value: 56.2 Ohm
Tolerance: ±1%
Number of resistors: 4
Circuit type: Isolated
Temperature coefficient: ±200ppm/°C
Package footprint: 1206 (3216 Metric)
Number of pins: 8
Mounting type: Surface Mount
RoHS and MSL compliance

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in power per element rating, terminal configuration (concave vs. convex), and operating temperature upper limit are permitted within the substitution scope, provided the substitute meets or exceeds the original part's performance envelope.

Parameter Comparison

Parameter	RACF164DFT56R2	RAVF164DFT56R2	TC164-FR-0756R2L	CAT16-56R2F4LF
Manufacturer	Stackpole Electronics Inc	Stackpole Electronics Inc	YAGEO	Bourns Inc.
Series	RACF	RAVF	TC164	CAT16
Product Status	Obsolete	Active	Active	Active
Resistance (Ohms)	56.2	56.2	56.2	56.2
Tolerance	±1%	±1%	±1%	±1%
Number of Resistors	4	4	4	4
Circuit Type	Isolated	Isolated	Isolated	Isolated
Power Per Element	62.5mW	100mW	62.5mW	62.5mW
Temperature Coefficient	±200ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 125°C
Package / Case	1206 (3216 Metric), Concave, Long Side Terminals	1206 (3216 Metric), Convex, Long Side Terminals	1206 (3216 Metric), Concave, Long Side Terminals	1206 (3216 Metric), Concave, Long Side Terminals
Number of Pins	8	8	8	8
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max)	0.030" (0.75mm)	0.024" (0.60mm)	0.028" (0.70mm)	0.024" (0.60mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	-	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

All three substitute parts are active products with current manufacturing status, providing long-term availability compared to the obsolete RACF164DFT56R2. Selection criteria are based on compliance certifications and operational requirements:

RAVF164DFT56R2 (Stackpole Electronics Inc) offers increased power per element (100mW vs. 62.5mW) while maintaining identical electrical specifications and temperature range. This part is suitable for applications requiring higher power dissipation margins. The convex terminal configuration differs from the original concave design; PCB layout compatibility must be verified.

TC164-FR-0756R2L (YAGEO) provides direct electrical and mechanical equivalence with concave terminal configuration matching the original part. Automotive AEC-Q200 qualification and DDRAM/SDRAM application history support use in similar circuit environments.

CAT16-56R2F4LF (Bourns Inc.) maintains electrical specifications and concave terminal configuration. Operating temperature range extends to -55°C ~ 125°C, which is 30°C lower than the original part's upper limit. This part is suitable for applications not requiring the full 155°C operating temperature.

Frequently Asked Questions (FAQ)

Q: Can RAVF164DFT56R2 be used as a direct replacement for RACF164DFT56R2?

A: RAVF164DFT56R2 is electrically equivalent with identical resistance, tolerance, temperature coefficient, and operating temperature range. The primary difference is increased power per element (100mW vs. 62.5mW) and convex terminal configuration versus concave. Verify PCB layout compatibility for the terminal geometry change before implementation.

Q: What is the difference between concave and convex terminal configurations?

A: Terminal configuration affects solder joint geometry and PCB pad design. Concave terminals (RACF164DFT56R2, TC164-FR-0756R2L, CAT16-56R2F4LF) and convex terminals (RAVF164DFT56R2) require different PCB footprints. Existing designs using concave configuration should select substitute parts with matching terminal geometry unless PCB redesign is performed.

Q: Is TC164-FR-0756R2L suitable for automotive applications?

A: Yes. TC164-FR-0756R2L carries AEC-Q200 automotive qualification and is documented for DDRAM and SDRAM applications, confirming suitability for automotive-grade circuit implementations.

Q: What is the impact of CAT16-56R2F4LF's lower operating temperature limit?

A: CAT16-56R2F4LF operates to -55°C ~ 125°C, compared to the original -55°C ~ 155°C range. This 30°C reduction in maximum operating temperature restricts use to applications where ambient or junction temperatures do not exceed 125°C. Thermal analysis is required to confirm compatibility with target application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. RAVF164DFT56R2, TC164-FR-0756R2L, and CAT16-56R2F4LF are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile.

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

A: All three substitute parts are active products. CAT16-56R2F4LF (Bourns Inc.) shows the highest current inventory (30,100 pcs), followed by RAVF164DFT56R2 (1,039 pcs) and TC164-FR-0756R2L (799 pcs). Inventory levels are subject to change; consult current distributor data for procurement planning.

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