SM1206RC-IL Red LED 1206 SMD Equivalent & Substitute Parts

Part Overview

The SM1206RC-IL is an active red LED indication component manufactured by Bivar Inc. in 1206 (3216 Metric) surface mount package format. This discrete red LED operates at 2V forward voltage with a dominant wavelength of 645nm and provides 2.1mcd luminous intensity. The component is ROHS3 compliant and available in Tape & Reel packaging with 1068 pieces in current inventory stock.

Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements where the primary part may be unavailable or where alternative electrical characteristics better suit specific circuit implementations.

Substiute Parts

SM1206RC-IL

Bivar Inc.In Stock: 1098SM1206RC-IL Datasheet

Current PartRFQ

APT3216LSECK/J3-PRV

KingbrightIn Stock: 10289APT3216LSECK/J3-PRV Datasheet

SimilarRFQ

XZMDK55W-1

SunLEDIn Stock: 5787XZMDK55W-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM1206RC-IL are qualified based on the following criteria:

Package Compatibility: All substitute parts must use the 1206 (3216 Metric) surface mount package with identical footprint dimensions (3.20mm L x 1.60mm W) to ensure direct PCB placement compatibility.

Color and Wavelength: All substitutes are red LEDs with dominant wavelengths in the red spectrum (625nm to 645nm range), maintaining functional equivalence for red indication applications.

Electrical Parameters: Forward voltage (Vf) ranges from 1.8V to 2V, and test current specifications are 2mA to 20mA. These variations are within acceptable tolerance for standard LED indication circuits with appropriate current-limiting resistor adjustment.

Compliance: All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification, ensuring regulatory equivalence.

Mounting and Configuration: All parts are surface mount, standard configuration red LEDs with clear lens transparency suitable for direct substitution in indication circuits.

The two identified substitutes (APT3216LSECK/J3-PRV and XZMDK55W-1) differ primarily in luminous intensity (40mcd and 79mcd respectively versus 2.1mcd), viewing angle (120° versus 30°), and packaging format (Cut Tape vs. Tape & Reel), while maintaining core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

APT3216LSECK/J3-PRV (Kingbright): This substitute is suitable for applications requiring lower forward voltage operation (1.8V versus 2V) and significantly higher luminous intensity (40mcd versus 2.1mcd). The 120° viewing angle provides wider light distribution compared to the 30° angle of the primary part. The reduced package height (0.75mm versus 1.40mm) accommodates space-constrained designs. ROHS3 compliance and active product status ensure regulatory and supply continuity. The lower test current (2mA) reduces power consumption in low-current indication circuits. Cut Tape packaging may require different handling procedures than Tape & Reel format.

XZMDK55W-1 (SunLED): This substitute maintains identical test current specification (20mA) and similar forward voltage (1.95V versus 2V), minimizing circuit redesign requirements. The highest luminous intensity (79mcd) among all options suits applications requiring maximum brightness. The 120° viewing angle and rectangular lens geometry provide enhanced light distribution. Reduced package height (0.75mm) supports compact PCB layouts. ROHS3 compliance and active product status confirm regulatory equivalence. Tape & Reel packaging matches the primary part format.

All three parts maintain ROHS3 compliance, active product status, and identical footprint dimensions, confirming direct substitution capability at the PCB level with appropriate circuit parameter verification.

Frequently Asked Questions (FAQ)

Q: Can APT3216LSECK/J3-PRV be used as a direct replacement for SM1206RC-IL without circuit modification?

A: APT3216LSECK/J3-PRV shares the 1206 (3216 Metric) footprint and can be placed on the same PCB location. However, the forward voltage difference (1.8V versus 2V) and significantly higher luminous intensity (40mcd versus 2.1mcd) require current-limiting resistor recalculation to maintain proper LED operating current and brightness levels. The viewing angle difference (120° versus 30°) also affects light distribution characteristics.

Q: What is the primary difference between XZMDK55W-1 and the original SM1206RC-IL?

A: XZMDK55W-1 maintains nearly identical electrical parameters (1.95V forward voltage, 20mA test current) but provides substantially higher luminous intensity (79mcd versus 2.1mcd). The package height is reduced (0.75mm versus 1.40mm), and the viewing angle is wider (120° versus 30°). These differences allow for brighter indication with wider light distribution in the same footprint.

Q: Are all three parts ROHS3 compliant?

A: Yes. SM1206RC-IL, APT3216LSECK/J3-PRV, and XZMDK55W-1 are all ROHS3 compliant, confirming regulatory equivalence for applications subject to ROHS3 requirements.

Q: What packaging format differences exist between these parts?

A: SM1206RC-IL and XZMDK55W-1 are supplied in Tape & Reel (TR) format. APT3216LSECK/J3-PRV is supplied in Cut Tape (CT) & Digi-Reel® format. Tape & Reel format is standard for automated pick-and-place assembly, while Cut Tape format requires different handling and may be suitable for lower-volume or manual assembly processes.

Q: How do the viewing angles affect application suitability?

A: SM1206RC-IL has a 30° viewing angle, providing narrow, concentrated light output suitable for direct-view indicator applications. APT3216LSECK/J3-PRV and XZMDK55W-1 both have 120° viewing angles, distributing light over a wider area. Selection depends on whether the application requires concentrated or dispersed light distribution.

Q: Can forward voltage differences be compensated in circuit design?

A: Yes. Forward voltage variations (1.8V to 2V) can be accommodated by adjusting the current-limiting resistor value in the LED circuit. The resistor calculation uses Ohm's Law: R = (Supply Voltage - Vf) / I_LED. Lower forward voltage allows for lower supply voltage operation or higher current capacity from the same supply.

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

A: Millicandela (mcd) rating indicates luminous intensity. SM1206RC-IL provides 2.1mcd, while APT3216LSECK/J3-PRV provides 40mcd and XZMDK55W-1 provides 79mcd. Higher mcd ratings produce brighter visible light output. Selection depends on required brightness for the specific indication application.

Q: Are all parts suitable for automated assembly?

A: Yes. All three parts are surface mount components in 1206 (3216 Metric) package format compatible with standard pick-and-place assembly equipment. Packaging format differences (Tape & Reel versus Cut Tape) affect feeder compatibility but not assembly process capability.