HDSP-301G 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The HDSP-301G is a single-character, 7-segment LED display module manufactured by Broadcom Limited. This green display operates as a common anode configuration with a 0.40" digit height and is housed in a 10-DIP package. The component is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Finding equivalent substitute parts is necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits component optimization within electrical and mechanical tolerance ranges.

Substiute Parts

HDSP-301G

Broadcom LimitedIn Stock: 1481HDSP-301G Datasheet

Current PartRFQ

SA39-11GWA

KingbrightIn Stock: 1235SA39-11GWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HDSP-301G is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Display Type: Must be 7-Segment
• Number of Characters: Must be 1
• Common Pin Configuration: Must be Common Anode
• Color: Must be Green
• Package / Case: Must be 10-DIP (0.300", 7.62mm)

Allowable Variation Parameters:

• Digit/Alpha Size: ±0.01" tolerance (0.39" to 0.41")
• Voltage - Forward (Vf): ±0.1V tolerance (2.15V to 2.35V)
• Current - Test: Exact match at 20mA
• Millicandela Rating: Higher values acceptable (brightness enhancement)
• Wavelength - Peak: ±5nm tolerance (563nm to 573nm)
• Power Dissipation (Max): Lower values acceptable (thermal optimization)
• Physical Dimensions: ±0.02" tolerance on height and width

The SA39-11GWA from Kingbright meets all critical matching parameters and falls within allowable variation ranges for electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the HDSP-301G and SA39-11GWA are active production components with full RoHS3 compliance and unlimited moisture sensitivity ratings. Selection between these parts should be based on the following factors:

HDSP-301G (Broadcom Limited) is the primary specification. Use this part when original design validation has been completed against this exact component and supply is available.

SA39-11GWA (Kingbright) is a qualified substitute when HDSP-301G supply is constrained. This part offers improved brightness (6.4mcd versus 2.8mcd) and reduced power dissipation (62.5mW versus 105mW). The 0.01" reduction in digit size (0.39" versus 0.40") and 0.05V reduction in forward voltage (2.2V versus 2.25V) remain within acceptable engineering tolerances for 7-segment display applications. Both components share identical package geometry, pin configuration, and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SA39-11GWA be used as a direct replacement for HDSP-301G in existing designs?

A: Yes. Both components are 1-character, common anode, 7-segment green displays in 10-DIP packages. The SA39-11GWA operates within acceptable electrical and mechanical tolerances. The higher brightness (6.4mcd versus 2.8mcd) may require circuit-level current limiting adjustment if visual consistency is critical across multiple display units.

Q: What is the significance of the digit size difference (0.40" versus 0.39")?

A: The 0.01" difference represents a 2.5% reduction in character height. For most applications, this falls within acceptable visual tolerance. Verify mechanical fit within display windows or bezels if space constraints are critical to your design.

Q: Why does SA39-11GWA have lower power dissipation despite higher brightness?

A: The SA39-11GWA achieves higher luminous intensity (6.4mcd) with lower power dissipation (62.5mW) through improved LED die efficiency and optical design. This is a performance advantage that reduces thermal load on the circuit.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited). Both are classified under ECCN EAR99 and HTSUS 8541.41.0000.

Q: What forward voltage tolerance should be assumed for circuit design?

A: The HDSP-301G operates at 2.25V typical and SA39-11GWA at 2.2V typical. Design current-limiting circuits to accommodate the full range (2.15V to 2.35V) to ensure compatibility with either component without redesign.

Q: Can these parts be used interchangeably in the same PCB assembly?

A: Yes. Both components use identical 10-DIP (0.300", 7.62mm) package geometry and pin configuration. No PCB layout modifications are required for substitution.