HSMG-C660 Equivalent & Substitute Parts

Part Overview

The HSMG-C660 is a green surface-mount right-angle LED indicator manufactured by Broadcom Limited. This component features a diffused lens with 572nm dominant wavelength and 9mcd brightness rating, designed for discrete 2.2V indication applications in 2-SMD, No Lead packaging. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

HSMG-C660

Broadcom LimitedIn Stock: 5141HSMG-C660 Datasheet

Current PartRFQ

HSMG-C680

Broadcom LimitedIn Stock: 5596HSMG-C680 Datasheet

DirectRFQ

QTLP610C4TR

onsemiIn Stock: 1173QTLP610C4TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSMG-C660 is determined by the following critical parameters:

• Package compatibility: 2-SMD, No Lead form factor with surface-mount right-angle mounting
• Electrical compatibility: Forward voltage within acceptable operating range (2.1V–2.2V nominal)
• Optical compatibility: Green wavelength (568nm–573nm dominant), with brightness and viewing angle suitable for indication applications
• Mechanical compatibility: Lens size 2.00mm x 1.00mm, height ≤1.10mm, rectangular domed-top lens style
• Environmental compliance: Moisture sensitivity level 1–2A, REACH unaffected status

Two substitute parts meet these criteria: HSMG-C680 (Broadcom Limited, direct manufacturer alternative) and QTLP610C4TR (onsemi, cross-manufacturer alternative).

Parameter Comparison

Engineering Selection Recommendations

HSMG-C680 is the primary substitute for HSMG-C660. Both components are manufactured by Broadcom Limited and share identical package, mounting, and electrical specifications (2.2V forward voltage, 20mA test current). The HSMG-C680 is currently in active production status, ensuring long-term availability. The primary differences are lens transparency (clear vs. diffused) and brightness (13.3mcd vs. 9mcd), which represent functional enhancements. The HSMG-C680 features RoHS3 compliance, providing superior environmental certification compared to the obsolete HSMG-C660.

QTLP610C4TR (onsemi) is a secondary cross-manufacturer substitute. This component maintains compatibility across package, mounting type, and test current specifications. The forward voltage is slightly lower (2.1V vs. 2.2V), which remains within acceptable operating margins for most indication circuits. The QTLP610C4TR offers superior moisture sensitivity (MSL 1 vs. 2A), providing extended shelf life without baking requirements. However, this part is also obsolete, limiting its suitability for new production designs.

For new designs or long-term production continuity, HSMG-C680 is the recommended selection due to active product status and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can HSMG-C680 directly replace HSMG-C660 in existing designs?

A: Yes. Both components share identical package (2-SMD, No Lead), mounting type (surface mount, right angle), forward voltage (2.2V), and test current (20mA) specifications. The HSMG-C680 is electrically and mechanically compatible. The primary design consideration is lens transparency: HSMG-C680 features a clear lens versus the diffused lens of HSMG-C660, resulting in higher brightness (13.3mcd vs. 9mcd) and narrower viewing angle (125° vs. 155°). Verify that the increased brightness and reduced viewing angle are acceptable for your application.

Q: What is the difference between diffused and clear lens options?

A: Diffused lenses scatter light across a wider viewing angle with lower peak brightness, suitable for applications requiring broad visibility. Clear lenses concentrate light with higher peak brightness and narrower viewing angle, suitable for direct-view applications. HSMG-C660 uses a diffused lens (155° viewing angle, 9mcd), while HSMG-C680 uses a clear lens (125° viewing angle, 13.3mcd).

Q: Is QTLP610C4TR suitable for production use?

A: QTLP610C4TR is obsolete and not recommended for new production designs. While electrically and mechanically compatible, obsolete status indicates discontinued manufacturing and limited availability. Use HSMG-C680 for production applications requiring long-term component supply.

Q: What are the moisture sensitivity implications?

A: HSMG-C660 and HSMG-C680 both carry MSL 2A rating, requiring storage at ≤30% relative humidity and baking before reflow if exposed to higher humidity for more than 4 weeks. QTLP610C4TR carries MSL 1 rating, allowing unlimited storage without humidity restrictions. For high-volume production with extended storage periods, MSL 1 components reduce handling complexity.

Q: Are there compliance differences between substitutes?

A: HSMG-C680 is RoHS3 compliant, meeting current environmental regulations. HSMG-C660 and QTLP610C4TR do not list RoHS compliance. All three components are REACH unaffected. For applications requiring RoHS certification, HSMG-C680 is the only compliant option.