PE-65870 T1/E1 Dual Pulse Transformer Equivalent & Substitute Parts

Part Overview

The PE-65870 is a surface mount T1/E1 dual pulse transformer manufactured by Pulse Electronics, designed for telecommunications applications requiring 1.2mH inductance with a 1CT:1.15CT turns ratio. The main part number PE-65870 is classified as obsolete, which necessitates identification of active equivalent alternatives to ensure continued component availability for new designs and production requirements. The substitute part PE-65870NL provides functional equivalence while maintaining active product status.

Substiute Parts

PE-65870

Pulse ElectronicsIn Stock: 2356PE-65870 Datasheet

Current PartRFQ

PE-65870NL

Pulse ElectronicsIn Stock: 694PE-65870NL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of PE-65870 with PE-65870NL is based on strict equivalence of the following electrical and mechanical parameters:

• Transformer Type: Both parts are T1/E1 (Dual) configurations
• Inductance: Both maintain 1.2mH specification
• Turns Ratio: Both specify 1CT:1.15CT primary to secondary ratio
• Mounting Type: Both are surface mount packages
• Physical Dimensions: Identical footprint (0.505" L x 0.280" W) and height (0.245" max seated height)
• Operating Temperature Range: Both rated 0°C ~ 70°C
• Moisture Sensitivity Level: Both classified as MSL 3 (168 Hours)

The substitute part PE-65870NL differs only in product status (active versus obsolete) and RoHS compliance classification, with no changes to functional electrical or mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

PE-65870NL is the direct active equivalent for PE-65870. Selection of PE-65870NL is appropriate for new designs and production applications due to its active product status and ROHS3 compliance. The obsolete status of PE-65870 restricts its use to legacy system maintenance where existing inventory is available. Both parts maintain identical electrical and mechanical specifications, ensuring functional interchangeability within the specified operating temperature range and moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can PE-65870NL be used as a direct replacement for PE-65870?

A: Yes. PE-65870NL provides complete functional equivalence. Both parts share identical transformer type, inductance, turns ratio, mounting configuration, physical dimensions, and operating specifications. The parts are electrically and mechanically interchangeable.

Q: What is the primary difference between PE-65870 and PE-65870NL?

A: The primary differences are product status and RoHS compliance. PE-65870 is obsolete and RoHS non-compliant, while PE-65870NL is active and ROHS3 compliant. No electrical or mechanical parameters differ between the two parts.

Q: Are there any PCB layout or footprint considerations when substituting PE-65870 with PE-65870NL?

A: No. Both parts have identical surface mount footprints with dimensions of 0.505" L x 0.280" W and maximum seated height of 0.245". PCB layouts designed for PE-65870 require no modification for PE-65870NL.

Q: What is the Moisture Sensitivity Level (MSL) for these transformers?

A: Both PE-65870 and PE-65870NL are classified as MSL 3, with a floor life of 168 hours. Standard moisture control procedures for MSL 3 components apply to both parts.

Q: Are these parts suitable for new product designs?

A: PE-65870NL is suitable for new designs due to its active status and ROHS3 compliance. PE-65870 should not be specified for new designs as it is obsolete.