PM3308-102M Equivalent & Substitute Parts

Part Overview

The PM3308-102M is a 1 mH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 50 mA continuous current with a maximum DC resistance of 8.4 Ohm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across an industrial temperature range of -55°C to 125°C and is tested at 100 kHz inductance frequency.

Substiute Parts

PM3308-102M

Bourns Inc.In Stock: 1202PM3308-102M Datasheet

Current PartRFQ

P0762.105NLT

Pulse ElectronicsIn Stock: 1109P0762.105NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM3308-102M is determined by strict equivalence across the following critical parameters:

• Inductance value: 1 mH with ±20% tolerance
• Current rating: 50 mA minimum continuous current capability
• Saturation current: 100 mA minimum
• DC resistance: 8.4 Ohm maximum
• Shielding configuration: Unshielded
• Mounting technology: Surface mount
• Physical envelope: Nonstandard package with dimensions approximately 13.00mm x 9.50mm x 3.00mm
• Inductance measurement frequency: 100 kHz

The P0762.105NLT from Pulse Electronics meets all specified electrical and mechanical parameters within the defined tolerances and dimensional constraints.

Parameter Comparison

Engineering Selection Recommendations

The P0762.105NLT is a direct functional equivalent to the PM3308-102M across all critical electrical and mechanical specifications. The substitute part is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete PM3308-102M.

The P0762.105NLT offers improved regulatory compliance, meeting ROHS3 requirements, whereas the PM3308-102M is RoHS non-compliant. For applications subject to environmental or procurement regulations requiring RoHS compliance, the P0762.105NLT is the appropriate selection.

The operating temperature range of the P0762.105NLT (-40°C to 130°C) encompasses the upper operating limit of the PM3308-102M (-55°C to 125°C). Applications requiring operation below -40°C must retain the PM3308-102M or identify alternative solutions.

Physical dimensions are equivalent within manufacturing tolerances, with the P0762.105NLT measuring 12.95mm x 9.40mm compared to the PM3308-102M at 13.00mm x 9.50mm. Both parts maintain identical 3.00mm seated height, confirming PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the P0762.105NLT replace the PM3308-102M in existing designs?

A: Yes. The P0762.105NLT meets all specified electrical parameters: 1 mH inductance at ±20% tolerance, 50 mA current rating, 100 mA saturation current, and 8.4 Ohm maximum DC resistance. Physical dimensions are equivalent within manufacturing tolerances, and both parts are unshielded surface mount components with identical seated height.

Q: What is the difference in operating temperature range?

A: The PM3308-102M operates from -55°C to 125°C, while the P0762.105NLT operates from -40°C to 130°C. The substitute part does not support operation below -40°C. For applications requiring -55°C minimum operation, the PM3308-102M must be retained or alternative parts must be sourced.

Q: Are there compliance differences between these parts?

A: Yes. The P0762.105NLT is ROHS3 compliant, while the PM3308-102M is RoHS non-compliant. Both parts are REACH unaffected and classified under ECCN EAR99 and HTSUS 8504.50.4000.

Q: How do the physical dimensions compare?

A: The PM3308-102M measures 13.00mm length x 9.50mm width x 3.00mm height. The P0762.105NLT measures 12.95mm length x 9.40mm width x 3.00mm height. These dimensions are equivalent within standard manufacturing tolerances and do not affect PCB footprint compatibility.

Q: What is the inductance test frequency for both parts?

A: Both the PM3308-102M and P0762.105NLT are tested at 100 kHz inductance frequency, ensuring measurement consistency across equivalent parts.

Q: Are both parts available in the same package type?

A: Yes. Both parts are nonstandard surface mount packages with identical seated height of 3.00mm, confirming mechanical interchangeability in PCB assembly.