SC1608C-1R0 Equivalent & Substitute Parts

Part Overview

The SC1608C-1R0 is a 1 µH shielded inductor manufactured by Signal Transformer, rated for 4 A continuous current with a maximum DC resistance of 40 mOhm. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant.

Substiute Parts

SC1608C-1R0

Signal TransformerIn Stock: 1112SC1608C-1R0 Datasheet

Current PartRFQ

IDCS2512ER1R0M

Vishay DaleIn Stock: 4349IDCS2512ER1R0M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC1608C-1R0 is determined by the following critical parameters:

Inductance Value: 1 µH (primary electrical specification)

Current Rating: Substitute parts must support the application's current requirements. The SC1608C-1R0 is rated for 4 A continuous current.

DC Resistance: Maximum 40 mOhm ensures equivalent power dissipation and thermal performance.

Shielding: Shielded construction is required to maintain electromagnetic compatibility in the original application.

Physical Dimensions: Surface mount package with identical footprint (0.260" L x 0.175" W) and height (0.115" max) ensures PCB compatibility.

Operating Temperature Range: -40°C to 125°C defines the thermal operating envelope.

Compliance: ROHS3 compliance and MSL 1 rating are mandatory for production and storage requirements.

The IDCS2512ER1R0M from Vishay Dale meets these substitution criteria with equivalent inductance, shielding, DC resistance, physical dimensions, temperature range, and compliance certifications. The primary design consideration is the reduced current rating (3 A vs. 4 A), which requires circuit-level evaluation for the specific application.

Parameter Comparison

Engineering Selection Recommendations

The IDCS2512ER1R0M is the qualified substitute for the obsolete SC1608C-1R0. Both parts share identical electrical specifications for inductance (1 µH), DC resistance (40 mOhm max), shielding, physical dimensions, and thermal operating range. Both maintain ROHS3 compliance and MSL 1 ratings.

The IDCS2512ER1R0M offers improved inductance tolerance (±20% vs. ±30%), enhancing circuit performance predictability. The substitute part is currently in active production status with higher inventory availability (4299 pcs vs. 1050 pcs).

The primary design consideration is the current rating differential: the substitute part is rated for 3 A versus the original 4 A rating. Circuit designs operating at or above 3 A continuous current require thermal and saturation analysis to confirm the IDCS2512ER1R0M is suitable for the specific application. Designs operating below 3 A continuous current present no current-related constraints.

Frequently Asked Questions (FAQ)

Q: Can the IDCS2512ER1R0M directly replace the SC1608C-1R0 in existing designs?

A: Physical and electrical compatibility is confirmed for inductance value, DC resistance, shielding, dimensions, and thermal range. The reduced current rating (3 A vs. 4 A) requires application-level verification. If the circuit operates below 3 A continuous current, direct substitution is valid. Designs at or above 3 A require thermal and saturation analysis.

Q: What is the impact of the inductance tolerance difference (±20% vs. ±30%)?

A: The IDCS2512ER1R0M provides tighter tolerance, resulting in more predictable inductance values and improved circuit performance consistency. This is a design advantage with no compatibility concerns.

Q: Are the physical packages identical?

A: Yes. Both parts use identical surface mount packages with 0.260" L x 0.175" W footprints and 0.115" maximum seated height. PCB layout modifications are not required.

Q: What compliance certifications apply to both parts?

A: Both the SC1608C-1R0 and IDCS2512ER1R0M are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) ratings. Both are classified under ECCN EAR99.

Q: Why is the SC1608C-1R0 obsolete?

A: The original part is classified as obsolete by the manufacturer. The IDCS2512ER1R0M is an active production part from Vishay Dale with confirmed availability and ongoing supply.

Q: What packaging options are available for the substitute part?

A: The IDCS2512ER1R0M is supplied in Tape & Reel (TR) packaging, standard for surface mount production environments.