SC3316F-151 Equivalent & Substitute Parts

Part Overview

The SC3316F-151 is a 150 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 1 A continuous current with a maximum DC resistance of 400 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 966 units available in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating.

Substiute Parts

SC3316F-151

Signal TransformerIn Stock: 1000SC3316F-151 Datasheet

Current PartRFQ

UP2B-151-R

Eaton - Electronics DivisionIn Stock: 1329UP2B-151-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC3316F-151 is determined by the following critical parameters:

• Inductance Value: Must be 150 µH with ±20% tolerance
• Current Rating: Must support minimum 1 A continuous current
• DC Resistance: Must not exceed 400 mOhm maximum
• Mounting Type: Must be surface mount compatible
• Shielding Configuration: Must be unshielded
• Inductance Test Frequency: Must be measured at 100 kHz
• Compliance: Must maintain RoHS compliance status

The substitute part UP2B-151-R meets these criteria with equivalent inductance, current rating, and DC resistance specifications within acceptable limits. Both parts are surface mount, unshielded inductors tested at 100 kHz with matching tolerance bands.

Parameter Comparison

Engineering Selection Recommendations

Both SC3316F-151 and UP2B-151-R are active production components with full RoHS compliance. The SC3316F-151 offers a wider operating temperature range extending to 125°C, making it suitable for applications requiring higher thermal performance. The UP2B-151-R provides equivalent inductance and current handling with a saturation current specification of 770 mA, which is lower than the primary part's 1 A rating. DC resistance values are within 10 mOhm of each other, representing negligible difference in circuit performance. Selection between these parts should be based on specific application temperature requirements and saturation current margins.

Frequently Asked Questions (FAQ)

Q: Can UP2B-151-R replace SC3316F-151 in all applications?

A: UP2B-151-R is electrically compatible for inductance and current rating. However, verify that your application's maximum operating temperature does not exceed 85°C, as the substitute part has a narrower temperature range (-40°C to 85°C versus -40°C to 125°C).

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

A: The SC3316F-151 has a saturation current of 1 A, while UP2B-151-R saturates at 770 mA. In applications where current approaches or exceeds 770 mA, the substitute part may exhibit inductance degradation. Verify your circuit's maximum current requirements.

Q: Are the physical dimensions compatible?

A: Both parts are surface mount with nonstandard packages. SC3316F-151 measures 0.530" L × 0.390" W × 0.205" H; UP2B-151-R measures 0.550" L × 0.410" W × 0.236" H. Verify PCB layout and clearance specifications before substitution.

Q: Do both parts meet the same compliance standards?

A: Both parts are RoHS compliant with MSL rating of 1 (Unlimited). SC3316F-151 carries ROHS3 certification, while UP2B-151-R carries standard RoHS certification. Both are acceptable for regulated applications.

Q: What is the core material difference?

A: SC3316F-151 uses an unspecified core material, while UP2B-151-R uses a ferrite drum core. This construction difference does not affect the specified electrical parameters but may influence frequency response characteristics outside the 100 kHz test specification.