RC3225J681CS 680 Ohm 1/3W 1210 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC3225J681CS is a 680 Ohm thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format. This component operates at 0.333W (1/3W) power rating with ±5% tolerance and is rated for operating temperatures from -55°C to 155°C. The part is ROHS3 compliant, REACH unaffected, and carries MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified based on matching resistance value, package format, and electrical performance parameters within acceptable tolerance and power rating specifications.

Substiute Parts

RC3225J681CS

Samsung Electro-MechanicsIn Stock: 1021RC3225J681CS Datasheet

Current PartRFQ

AC1210FR-07680RL

YAGEOIn Stock: 30232AC1210FR-07680RL Datasheet

UpgradeRFQ

RC1210FR-07680RL

YAGEOIn Stock: 3586RC1210FR-07680RL Datasheet

UpgradeRFQ

RC1210JR-07680RL

YAGEOIn Stock: 15427RC1210JR-07680RL Datasheet

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CRCW1210680RFKEA

Vishay DaleIn Stock: 36760CRCW1210680RFKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC3225J681CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 680 Ohms
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS3 compliance
• MSL 1 rating

Allowable Variation Parameters:

• Tolerance: The original part specifies ±5%. Substitute parts with ±1% tolerance provide improved accuracy and are electrically compatible.
• Power rating: The original part is rated 0.333W (1/3W). Substitute parts rated at 0.5W (1/2W) provide higher power dissipation capability and are mechanically compatible within the same 1210 package footprint.

Substitute Classification:

Upgrade Substitutes (AC1210FR-07680RL, RC1210FR-07680RL, RC1210JR-07680RL): These parts maintain the 680 Ohm resistance and 1210 package while offering improved tolerance (±1%) and increased power rating (0.5W). AC1210FR-07680RL and CRCW1210680RFKEA include automotive AEC-Q200 qualification.

Similar Substitute (CRCW1210680RFKEA): This Vishay Dale part matches all critical parameters with automotive AEC-Q200 certification and ±1% tolerance.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Same Tolerance): RC1210JR-07680RL maintains the original ±5% tolerance specification while providing increased power rating (0.5W vs. 0.333W) in the identical 1210 package. This part is suitable for direct replacement in applications where tolerance matching is required and higher power dissipation capability is acceptable.

Upgraded Substitution (Improved Tolerance): AC1210FR-07680RL and RC1210FR-07680RL both provide ±1% tolerance improvement over the original ±5% specification. These parts are suitable for applications requiring tighter resistance accuracy. AC1210FR-07680RL includes automotive AEC-Q200 qualification for automotive-grade applications.

Automotive-Grade Substitution: AC1210FR-07680RL (YAGEO) and CRCW1210680RFKEA (Vishay Dale) both carry AEC-Q200 automotive qualification. These parts are specified for automotive and high-reliability applications requiring automotive-grade component certification.

Compliance Verification: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating consistent with the original RC3225J681CS specification.

Frequently Asked Questions (FAQ)

Q: Can RC1210JR-07680RL replace RC3225J681CS in all applications? A: RC1210JR-07680RL is electrically compatible as a direct substitute. Both parts share ±5% tolerance, identical resistance value (680 Ohms), matching temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The substitute provides higher power rating (0.5W vs. 0.333W), which is compatible with the original circuit design. Physical dimensions are within acceptable tolerance for 1210 package footprints.

Q: What is the difference between upgrade substitutes and similar substitutes? A: Upgrade substitutes (AC1210FR-07680RL, RC1210FR-07680RL, RC1210JR-07680RL) are classified based on improved electrical specifications (higher power rating, tighter tolerance) while maintaining package compatibility. The similar substitute CRCW1210680RFKEA from Vishay Dale provides equivalent electrical performance with automotive AEC-Q200 certification. Selection depends on application requirements for tolerance, power dissipation, and automotive qualification.

Q: Are all substitute parts available in the same packaging format? A: The original RC3225J681CS is supplied in bulk packaging. All substitute parts (AC1210FR-07680RL, RC1210FR-07680RL, RC1210JR-07680RL, CRCW1210680RFKEA) are supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical compatibility but may impact procurement and assembly processes.

Q: Which substitute part should be selected for automotive applications? A: AC1210FR-07680RL and CRCW1210680RFKEA both carry automotive AEC-Q200 qualification. AC1210FR-07680RL is manufactured by YAGEO with ±1% tolerance and 0.5W power rating. CRCW1210680RFKEA is manufactured by Vishay Dale with identical electrical specifications. Selection between these two parts depends on supply chain availability and preferred manufacturer qualification.

Q: Is tolerance improvement from ±5% to ±1% necessary for my application? A: Tolerance selection depends on circuit design requirements. The original ±5% tolerance is suitable for general-purpose applications. Improved ±1% tolerance (AC1210FR-07680RL, RC1210FR-07680RL, CRCW1210680RFKEA) is specified for precision circuits requiring tighter resistance accuracy. Consult circuit design specifications to determine tolerance requirements.

Q: Can I use a 0.5W rated resistor in place of a 0.333W rated resistor? A: Yes. The 0.5W (1/2W) power rating of substitute parts provides higher power dissipation capability than the original 0.333W (1/3W) specification. This is compatible with circuit designs specified for 0.333W resistors. The substitute will operate at lower temperature rise under identical power dissipation conditions.