CCK-1212SF DC DC Converter Equivalent & Substitute Parts

Part Overview

The CCK-1212SF is an isolated module DC DC converter manufactured by TDK-Lambda Americas Inc, designed to convert input voltages between 9V and 18V to a fixed 12V output at 125mA maximum current. This 1.5W converter features 500V isolation and is rated for commercial ITE applications with operating temperatures from -20°C to 70°C.

The CCK-1212SF has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this converter topology.

Substiute Parts

CCK-1212SF

TDK-Lambda Americas IncIn Stock: 5883CCK-1212SF Datasheet

Current PartRFQ

CC1R5-1212SF-E

TDK-Lambda Americas IncIn Stock: 926CC1R5-1212SF-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CCK-1212SF is determined by the following critical parameters that must remain compatible:

Input Voltage Compatibility: The substitute part must accept the 9V to 18V input range to function within the same power supply architecture.

Output Voltage Specification: The substitute must deliver 12V output or a voltage range that includes 12V to maintain compatibility with downstream circuitry.

Output Current Capacity: The substitute must support the 125mA maximum output current requirement.

Isolation Voltage: The substitute must maintain 500V isolation to preserve electrical safety and noise immunity characteristics.

Mounting and Package: The substitute must use through-hole mounting with a DIP module package format to fit existing PCB layouts.

Single Output Configuration: The substitute must provide exactly one isolated output to match the original topology.

The CC1R5-1212SF-E meets these substitution criteria while offering enhanced product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

CC1R5-1212SF-E as Primary Substitute

The CC1R5-1212SF-E is the manufacturer-recommended substitute for the obsolete CCK-1212SF. This part maintains electrical compatibility across all critical parameters: identical input voltage range (9V to 18V), compatible output voltage specification (12V falls within the 12V to 15V range), matching output current capacity (125mA), and equivalent isolation voltage (500V).

The CC1R5-1212SF-E offers significant advantages in product lifecycle status. As an active product, it provides assured long-term availability and supply chain continuity. The extended operating temperature range (-40°C to 85°C versus -20°C to 70°C) provides broader environmental performance capability.

The substitute features an enable function with active-low control, offering enhanced circuit integration flexibility not present in the original part. RoHS compliance and REACH unaffected status confirm regulatory alignment with current environmental standards.

Package differences exist between the original 6-DIP module and the substitute 7-DIP module. PCB layout modifications are required to accommodate the different pin configuration and physical dimensions (0.65" L x 0.65" W x 0.34" H versus 1.10" L x 0.63" W x 0.31" H). These layout changes must be evaluated within the context of the complete system design.

The power rating reduction from 1.5W to 1W requires thermal analysis to confirm adequate performance under maximum load conditions in the target application.

Frequently Asked Questions (FAQ)

Q: Can the CC1R5-1212SF-E directly replace the CCK-1212SF without PCB modifications?

A: No. The CC1R5-1212SF-E uses a 7-DIP package compared to the original 6-DIP package. Physical dimensions differ (0.65" x 0.65" x 0.34" versus 1.10" x 0.63" x 0.31"), requiring PCB layout changes to accommodate the new pin configuration and footprint.

Q: What is the significance of the output voltage range change from 12V to 12V ~ 15V?

A: The substitute provides a 12V to 15V output range, which includes the original fixed 12V specification. Downstream circuitry rated for 12V operation will function within this range. Applications requiring strict 12V output should evaluate voltage regulation requirements.

Q: Does the power rating reduction from 1.5W to 1W affect compatibility?

A: The power rating change reflects the converter's continuous power delivery capability. Applications drawing maximum current (125mA at 12V = 1.5W) must be evaluated to confirm the 1W rating provides adequate thermal margin. Thermal analysis is required for high-current or high-ambient-temperature applications.

Q: Are there differences in isolation performance between the original and substitute?

A: Both parts maintain 500V isolation voltage, ensuring equivalent electrical isolation characteristics for noise immunity and safety compliance in ITE applications.

Q: What is the impact of the extended operating temperature range?

A: The CC1R5-1212SF-E operates from -40°C to 85°C compared to the original -20°C to 70°C range. This extended range provides greater environmental flexibility for applications in extreme temperature conditions.

Q: How do the control features differ?

A: The CC1R5-1212SF-E includes enable and active-low control functions not specified in the original CCK-1212SF. These features allow circuit-level power management and enable/disable control, providing enhanced system integration capabilities.

Q: Are there regulatory or compliance differences?

A: The CC1R5-1212SF-E is RoHS compliant and REACH unaffected, confirming alignment with current environmental regulations. Both parts share the same ECCN (EAR99) and HTSUS classification.