Equivalent & Substitute Parts Reference: TEC 3-4812WI

Part Overview

TEC 3-4812WI is an active, isolated DC-DC converter module from Traco Power providing a single 12V output at 250mA with 3W rated power. Its input voltage range is 18V to 75V, suitable for ITE (Commercial) applications, with features such as Remote On/Off and Short Circuit Protection (SCP). The device is through-hole mounted and housed in an 8-SIP module case. It is RoHS3 compliant and REACH unaffected. Given inventory fluctuations, application-specific needs, or mechanical compatibility issues, identifying equivalent and substitute parts ensures continued availability and design flexibility while maintaining required electrical and regulatory parameters.

Substiute Parts

TEC 3-4812WI

Traco PowerIn Stock: 1008TEC 3-4812WI Datasheet

Current PartRFQ

URB4812MT-3WR3

Mornsun America, LLCIn Stock: 2101URB4812MT-3WR3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined by matching the following key parameters: input voltage range, output voltage, output current, output power, isolation voltage, efficiency, application (ITE Commercial), regulatory compliance (RoHS, REACH, ECCN), and product status. Mechanical parameters such as mounting type and package dimensions must also be considered for system compatibility. Only parts explicitly listed and matching these parameters qualify as substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both TEC 3-4812WI and URB4812MT-3WR3 are active, RoHS compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8504.40.9580. Substitution is supported for applications requiring equivalent electrical performance and similar compliance status. Selection between these models should be driven by mounting type and packaging compatibility as these differ: TEC 3-4812WI is through-hole (8-SIP), whereas URB4812MT-3WR3 is surface mount (14-SMD).

Frequently Asked Questions (FAQ)

Q1: Which electrical parameters must match for a direct substitution?
A1: The voltage input range, output voltage, output current, power rating, efficiency, and isolation voltage must align strictly. Both TEC 3-4812WI and URB4812MT-3WR3 meet these criteria.

Q2: Are the mounting types interchangeable?
A2: TEC 3-4812WI uses through-hole (8-SIP), while URB4812MT-3WR3 employs surface mount (14-SMD). Compatibility depends on PCB design and system mechanical constraints.

Q3: How do package dimensions affect substitution?
A3: Package size and lead configuration (SIP vs. SMD) must be evaluated for fit within the target assembly. Only provided dimensions and lead counts should be considered.

Q4: Do all substitute parts need identical regulatory certifications?
A4: Substitutes must match RoHS and REACH status, with both parts compliant and unaffected, ensuring equivalence in regulatory posture.

Q5: Is the isolation voltage difference significant?
A5: TEC 3-4812WI specifies 1.6kV, URB4812MT-3WR3 specifies 1.5kV. Only select substitute parts when their isolation voltage meets or exceeds application needs, as stated in provided parameters.

Q6: What output control features are available?
A6: Only TEC 3-4812WI lists Remote On/Off and SCP features. Substitution is recommended only when such features are not strictly required by the application, per explicit parameters provided.