CCM-1212DF DC DC Converter Equivalent & Substitute Parts

Part Overview

The CCM-1212DF is an isolated module DC DC converter manufactured by TDK-Lambda Americas Inc, designed to provide dual output voltages of +12V and -12V at 125mA each from a 9V to 18V input source. This 3W converter is rated for commercial ITE applications with 500V isolation and operates across a temperature range of -20°C to 70°C.

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

Substiute Parts

CCM-1212DF

TDK-Lambda Americas IncIn Stock: 2047CCM-1212DF Datasheet

Current PartRFQ

CC3-1212DF-E

TDK-Lambda Americas IncIn Stock: 42407CC3-1212DF-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CCM-1212DF is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Input voltage range: 9V to 18V (must encompass or match the original specification)
• Dual output configuration with positive and negative rails
• Output voltage tolerance: The substitute CC3-1212DF-E provides adjustable output range of 12V to 15V and -12V to -15V, which includes the fixed 12V/-12V nominal values of the original part
• Output current capacity: Minimum 125mA per output
• Power rating: 3W
• Isolation voltage: 500V

Mechanical Compatibility Requirements:

• Through-hole mounting type
• DIP module package format
• Physical dimensions compatible with PCB layout constraints

Functional Compatibility:

• Isolated DC DC converter topology
• Commercial ITE application suitability
• Over-current protection feature (original part specification)

The CC3-1212DF-E meets all electrical requirements and maintains through-hole DIP module form factor compatibility. The adjustable output voltage range of the substitute encompasses the fixed output voltages of the original part, allowing direct functional replacement in applications where the nominal 12V/-12V outputs are required.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CC3-1212DF-E

The CC3-1212DF-E is the manufacturer-recommended substitute for the obsolete CCM-1212DF. Selection of this substitute is based on the following engineering factors:

Product Status and Availability: The CCM-1212DF is obsolete and no longer in active production. The CC3-1212DF-E is an active product with substantial inventory availability (42,331 pieces in stock versus 2,000 pieces for the original part), ensuring long-term supply chain continuity.

Electrical Equivalence: Both converters operate from identical 9V to 18V input ranges and deliver 3W of power with 500V isolation. Output current capacity is identical at 125mA per rail. The substitute's adjustable output voltage range (12V to 15V and -12V to -15V) encompasses the fixed nominal outputs of the original part, providing functional equivalence when configured to 12V/-12V operation.

Compliance and Certifications: The CC3-1212DF-E carries RoHS Compliance and REACH Unaffected certifications, meeting current regulatory requirements for commercial electronics. Both parts share identical ECCN (EAR99) and HTSUS (8504.40.9580) classifications.

Temperature Performance: The substitute operates across -40°C to 85°C, providing a wider operating range than the original part's -20°C to 70°C specification. This extended range supports deployment in more demanding thermal environments.

Physical Form Factor: Both parts utilize through-hole DIP module mounting. The substitute uses a 7-DIP package versus the original 6-DIP format. PCB layout modifications are required to accommodate the additional pin. Physical dimensions are comparable (22.9mm x 16.6mm x 8.5mm for substitute versus 28.4mm x 20.6mm x 8.4mm for original), with the substitute being slightly more compact.

Design Considerations: The CC3-1212DF-E includes Enable and Active Low control features not specified in the original part documentation. These features provide additional design flexibility for power management applications. Designs utilizing the substitute should verify that unused control pins are properly terminated according to TDK-Lambda application guidelines.

Frequently Asked Questions (FAQ)

Q: Can the CC3-1212DF-E directly replace the CCM-1212DF without PCB modifications?

A: Direct socket replacement is not possible due to package differences. The original CCM-1212DF uses a 6-DIP module, while the CC3-1212DF-E uses a 7-DIP module. PCB layout modifications are required to accommodate the additional pin. Pin function mapping must be verified against both datasheets before implementation.

Q: What is the significance of the adjustable output voltage range on the CC3-1212DF-E?

A: The CC3-1212DF-E provides output voltage adjustment from 12V to 15V on the positive rail and -12V to -15V on the negative rail. For applications requiring the fixed 12V/-12V outputs of the original part, the substitute must be configured to the nominal 12V/-12V operating point. This adjustability provides design flexibility for systems requiring voltage trimming or multiple voltage variants from a single converter model.

Q: Are there any thermal or efficiency differences between the two parts?

A: The original CCM-1212DF specifies 77% efficiency. The CC3-1212DF-E does not provide an efficiency specification in the available documentation. Both parts are rated for 3W output power. Thermal performance should be evaluated through testing under actual application load conditions, particularly if the substitute will operate at the upper end of its extended temperature range (-40°C to 85°C).

Q: What is the purpose of the Enable and Active Low control features on the CC3-1212DF-E?

A: The Enable and Active Low control features allow external logic to control converter operation. These pins enable power management functions such as soft-start, shutdown, or synchronized operation in multi-converter systems. Designs not utilizing these features must ensure control pins are properly terminated (typically pulled high or low according to application requirements) to prevent unintended converter behavior.

Q: How should the additional pin on the 7-DIP package be handled?

A: The transition from 6-DIP to 7-DIP requires verification of pin assignments for all signals. The additional pin may be a control signal (such as the Enable or Active Low function), ground, or a no-connect designation. Pin function must be confirmed against the CC3-1212DF-E datasheet. Unused pins must be properly terminated according to TDK-Lambda recommendations to ensure stable converter operation.

Q: Is the CC3-1212DF-E suitable for applications requiring the -20°C to 70°C operating range of the original part?

A: Yes. The CC3-1212DF-E operates across -40°C to 85°C, which fully encompasses the original -20°C to 70°C specification. The substitute is suitable for all applications within the original temperature range and additionally supports operation in extended temperature environments.

Q: What compliance certifications should be verified for new designs using the CC3-1212DF-E?

A: The CC3-1212DF-E is RoHS Compliant and REACH Unaffected. Both parts share identical ECCN (EAR99) and HTSUS (8504.40.9580) classifications for export control and tariff purposes. Designs should verify that these certifications meet the specific regulatory requirements of the target market and application.