TMK316F105ZFST Equivalent & Substitute Parts

Part Overview

The TMK316F105ZFST is a 1 µF ceramic capacitor rated at 25V with Y5V temperature coefficient, manufactured by Taiyo Yuden in a 1206 (3216 Metric) surface mount package. This part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing production and repair applications. Substitute parts must maintain electrical performance within the specified capacitance, voltage rating, and temperature coefficient parameters while accommodating mechanical compatibility with existing PCB designs.

Substiute Parts

TMK316F105ZFST

Taiyo YudenIn Stock: 1087TMK316F105ZFST Datasheet

Current PartRFQ

12063G105ZAT9A

KYOCERA AVXIn Stock: 90412063G105ZAT9A Datasheet

DirectRFQ

CC1206KKX7R8BB105

YAGEOIn Stock: 56254CC1206KKX7R8BB105 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMK316F105ZFST is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 1 µF
• Voltage Rating: 25V or higher
• Package / Case: 1206 (3216 Metric)
• Mounting Type: Surface Mount, MLCC
• Moisture Sensitivity Level: 1 (Unlimited)

Temperature Coefficient Considerations: The original part specifies Y5V (F) temperature coefficient with an operating range of -30°C ~ 85°C. Substitute parts may employ alternative temperature coefficients (such as X7R) provided they maintain the same or superior capacitance stability across the specified operating temperature range and do not introduce incompatibility with circuit design parameters.

Tolerance Considerations: The original part tolerance is -20%, +80%. Substitute parts with tighter tolerances (such as ±10%) are functionally compatible and provide improved capacitance stability.

Parameter Comparison

Engineering Selection Recommendations

12063G105ZAT9A (KYOCERA AVX): This substitute provides direct electrical equivalence to the TMK316F105ZFST with identical capacitance (1 µF), voltage rating (25V), tolerance (-20%, +80%), and temperature coefficient (Y5V). The part is currently in active production status with ROHS3 compliance and REACH unaffected certification. Physical dimensions are identical, with a reduced maximum thickness (0.037" versus 0.049"), ensuring PCB layout compatibility. This part is the primary substitute for direct replacement applications.

CC1206KKX7R8BB105 (YAGEO): This substitute maintains identical capacitance (1 µF), voltage rating (25V), and package dimensions (1206 / 3216 Metric). The temperature coefficient differs (X7R versus Y5V), providing an extended operating temperature range (-55°C ~ 125°C versus -30°C ~ 85°C) and improved capacitance stability with tighter tolerance (±10% versus -20%, +80%). The part is in active production with ROHS3 compliance and REACH unaffected certification. This substitute is suitable for applications requiring enhanced temperature stability and tighter capacitance tolerance. Maximum thickness (0.045") remains within acceptable PCB assembly parameters.

Both substitute parts are available in active production status with full regulatory compliance, addressing the obsolescence of the original TMK316F105ZFST component.

Frequently Asked Questions (FAQ)

Q: Can the 12063G105ZAT9A directly replace the TMK316F105ZFST? A: Yes. Both parts share identical electrical specifications (1 µF, 25V, Y5V, -20%/+80% tolerance) and physical package dimensions (1206 / 3216 Metric). The 12063G105ZAT9A has a reduced maximum thickness (0.037" versus 0.049"), which is compatible with standard PCB assembly processes.

Q: What is the difference between the Y5V and X7R temperature coefficients? A: Y5V is a general-purpose temperature coefficient with capacitance variation across the -30°C ~ 85°C operating range. X7R provides superior stability with a wider operating range (-55°C ~ 125°C) and tighter capacitance tolerance (±10% versus -20%, +80%). Selection depends on circuit requirements for temperature stability and capacitance precision.

Q: Are both substitute parts RoHS compliant? A: Yes. Both the 12063G105ZAT9A and CC1206KKX7R8BB105 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Will the CC1206KKX7R8BB105 work in applications designed for the TMK316F105ZFST? A: Yes. The CC1206KKX7R8BB105 maintains the same capacitance (1 µF), voltage rating (25V), and package dimensions (1206 / 3216 Metric). The X7R temperature coefficient provides improved stability compared to Y5V, making it suitable for the same applications. The tighter tolerance (±10%) offers enhanced capacitance precision.

Q: What is the moisture sensitivity level, and why does it matter? A: All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture absorption restrictions during storage or handling. This simplifies inventory management and eliminates the need for specialized dry-pack storage or baking procedures prior to assembly.

Q: Are there any thickness constraints for PCB assembly? A: The original part has a maximum thickness of 0.049" (1.25mm). The 12063G105ZAT9A is thinner at 0.037" (0.94mm), and the CC1206KKX7R8BB105 is 0.045" (1.15mm). All three are compatible with standard 1206 package assembly processes. Verify specific PCB design constraints if height clearance is critical.

Q: What inventory status should I consider when selecting a substitute? A: The 12063G105ZAT9A has 821 units in stock, and the CC1206KKX7R8BB105 has 56,200 units in stock. Both are in active production. The CC1206KKX7R8BB105 offers significantly higher availability for high-volume applications.