SC1608F-151 Equivalent & Substitute Parts

Part Overview

The SC1608F-151 is a 150 µH unshielded wirewound inductor manufactured by Signal Transformer, designed for surface mount applications in compact form factors. This component operates at 330 mA rated current with a maximum DC resistance of 2.4Ohm and is specified for operating temperatures from -40°C to 125°C. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility are maintained within the allowed parameter tolerances for this inductor category.

Substiute Parts

SC1608F-151

Signal TransformerIn Stock: 935SC1608F-151 Datasheet

Current PartRFQ

P0770.154NLT

Pulse ElectronicsIn Stock: 2364P0770.154NLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC1608F-151 is determined by the following critical parameters:

• Inductance value: 150 µH (within ±20% tolerance band)
• Current rating: minimum 330 mA to support the original design current
• DC resistance: maximum 2.4Ohm to maintain circuit performance
• Physical dimensions: 6.60 x 4.45 x 2.92 mm (nonstandard package compatibility)
• Wirewound unshielded construction
• Surface mount technology
• Operating temperature range: minimum -40°C to 125°C coverage

The substitute part P0770.154NLT from Pulse Electronics meets the inductance, tolerance, physical dimensions, and construction type requirements. However, the current rating specification differs at 250 mA versus the original 330 mA, which represents a design constraint that must be evaluated for the specific application circuit.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain Active product status and ROHS3 compliance with identical moisture sensitivity ratings. The P0770.154NLT substitute provides equivalent inductance, tolerance, physical footprint, and saturation current specifications.

The primary design consideration is the current rating differential: the substitute part is rated for 250 mA continuous current versus the original 330 mA specification. The substitute also provides improved DC resistance at 2.0Ohm maximum compared to 2.4Ohm, which reduces resistive losses in the circuit path.

Selection between these parts depends on whether the application circuit operates within the 250 mA current envelope. Both parts are suitable for the full operating temperature range specified in the original design, with the substitute offering extended temperature capability to 130°C.

Frequently Asked Questions (FAQ)

Q: Can P0770.154NLT be used as a direct replacement for SC1608F-151?

A: Physical and electrical compatibility is confirmed for inductance value, tolerance, package dimensions, and construction type. The current rating difference (250 mA vs. 330 mA) must be evaluated against actual circuit current requirements. If circuit current remains below 250 mA, the substitute is compatible.

Q: What is the significance of the current rating difference?

A: The current rating indicates the maximum continuous current the inductor can carry without exceeding temperature rise limits. The SC1608F-151 supports 330 mA; the P0770.154NLT supports 250 mA. Applications drawing current above 250 mA require the original part or a higher-rated alternative.

Q: Are the physical packages identical?

A: Both parts share identical dimensions of 6.60 x 4.45 x 2.92 mm and use nonstandard surface mount packages. PCB footprints and assembly processes are compatible.

Q: How do the DC resistance values affect circuit performance?

A: The P0770.154NLT provides lower DC resistance (2.0Ohm max vs. 2.4Ohm max), resulting in reduced resistive losses and lower heat generation in the inductor element. This is a performance advantage in applications sensitive to power dissipation.

Q: Are both parts compliant with environmental and regulatory standards?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity is unlimited (MSL 1) for both parts, indicating no special storage or handling requirements.