SC3316F-330 Equivalent & Substitute Parts

Part Overview

The SC3316F-330 is a 33 µH unshielded wirewound surface mount inductor manufactured by Signal Transformer, rated for 2.1 A continuous current with a maximum DC resistance of 100mOhm. This component is classified as Active product status and is RoHS3 compliant. 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 category.

Key Parameters

Parameter	Value
Inductance	33 µH
Tolerance	±20%
Current Rating	2.1 A
DC Resistance (DCR)	100mOhm Max
Shielding	Unshielded
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SC3316F-330 is determined by the following core parameters:

Inductance Value: 33 µH (±20% tolerance band)
Current Rating: Minimum 2.1 A continuous current capability
DC Resistance: Maximum 100mOhm to maintain electrical performance
Shielding Configuration: Unshielded topology preferred for circuit compatibility
Mounting Type: Surface Mount (SMD) package required
Operating Temperature: Minimum -40°C to 125°C range
RoHS Compliance: RoHS3 compliant status

Substitute parts are grouped based on adherence to these parameters. Parts meeting all core criteria are classified as direct equivalents. Parts with minor parameter variations (such as increased DCR or different shielding) are noted for application-specific evaluation.

Parameter Comparison

Parameter	SC3316F-330	DRA124-330-R	P0751.333NL	P0751.333NLT	UP2B-330-R
Manufacturer	Signal Transformer	Eaton - Electronics Division	Pulse Electronics	Pulse Electronics	Eaton - Electronics Division
Inductance	33 µH	33 µH	33 µH	33 µH	33 µH
Tolerance	±20%	±20%	±20%	±20%	±20%
Current Rating (Amps)	2.1 A	1.98 A	2 A	2 A	2.1 A
DC Resistance (DCR)	100mOhm Max	108mOhm	120mOhm Max	120mOhm Max	91.7mOhm Max
Shielding	Unshielded	Shielded	Unshielded	Unshielded	Unshielded
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 165°C	-40°C ~ 130°C	-40°C ~ 130°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

UP2B-330-R (Eaton - Electronics Division): This substitute maintains the 2.1 A current rating and provides superior DC resistance performance at 91.7mOhm Max, lower than the SC3316F-330 specification. Unshielded configuration matches the original design. Operating temperature range is -40°C to 85°C, which is narrower than the original part. RoHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications where the reduced upper temperature limit does not conflict with system requirements.

P0751.333NLT (Pulse Electronics): This substitute provides 2 A current rating with 120mOhm Max DC resistance. Unshielded configuration aligns with the original design. Operating temperature range extends to 130°C, exceeding the SC3316F-330 specification. Tape & Reel packaging matches the original. RoHS3 compliance and MSL 1 rating are maintained. Current rating is 0.1 A below the original specification.

P0751.333NL (Pulse Electronics): Functionally equivalent to P0751.333NLT with identical electrical specifications (2 A current rating, 120mOhm Max DCR, -40°C to 130°C operating range). Differs only in packaging configuration (non-reel format). RoHS3 compliance and MSL 1 rating are maintained.

DRA124-330-R (Eaton - Electronics Division): This substitute features shielded construction, which differs from the unshielded SC3316F-330 topology. Current rating is 1.98 A with 108mOhm DC resistance. Operating temperature range extends to 165°C. AEC-Q200 automotive qualification is provided. Shielded configuration may introduce electromagnetic compatibility differences in the circuit. RoHS3 compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can the DRA124-330-R be used as a direct replacement for SC3316F-330?

A: The DRA124-330-R shares the same 33 µH inductance and ±20% tolerance. However, it features shielded construction versus the unshielded SC3316F-330. The current rating is 1.98 A compared to 2.1 A. Shielding configuration may affect circuit performance in applications sensitive to electromagnetic coupling. Electrical compatibility must be evaluated for the specific application.

Q: What is the primary difference between P0751.333NLT and P0751.333NL?

A: Both parts are electrically identical with 33 µH inductance, 2 A current rating, and 120mOhm Max DC resistance. The difference is packaging: P0751.333NLT is supplied in Tape & Reel format, while P0751.333NL is supplied in standard packaging. Selection depends on assembly process requirements.

Q: Is UP2B-330-R suitable for high-temperature applications?

A: The UP2B-330-R operates from -40°C to 85°C, which is narrower than the SC3316F-330 range of -40°C to 125°C. This part is not suitable for applications requiring operation above 85°C.

Q: How do DC resistance differences affect circuit performance?

A: DC resistance values range from 91.7mOhm (UP2B-330-R) to 120mOhm (P0751 series) compared to 100mOhm Max for SC3316F-330. Higher DCR increases power dissipation and voltage drop across the inductor. Lower DCR reduces losses. Selection depends on circuit power budget and thermal management requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (DRA124-330-R, P0751.333NL, P0751.333NLT, and UP2B-330-R) are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SC3316F-330 specification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message