HCPL-253L-500E Equivalent & Substitute Parts

Part Overview

The HCPL-253L-500E is a 2-channel optoisolator with transistor output manufactured by Broadcom Limited. This component provides 3750Vrms isolation voltage and is designed for DC input applications requiring galvanic isolation in 8-DIP Gull Wing surface mount packaging. The part is currently in active production status with 971 units in stock.

Substitute parts are necessary when the HCPL-253L-500E becomes unavailable, when alternative isolation voltage ratings are required for specific application requirements, or when different current transfer ratio specifications better match circuit design parameters.

Substiute Parts

HCPL-253L-500E

Broadcom LimitedIn Stock: 996HCPL-253L-500E Datasheet

Current PartRFQ

HCPL2530S

onsemiIn Stock: 2023HCPL2530S Datasheet

MFR RecommendedRFQ

HCPL2530SD

Fairchild SemiconductorIn Stock: 50781HCPL2530SD Datasheet

MFR RecommendedRFQ

HCPL2531SDV

Fairchild SemiconductorIn Stock: 99912HCPL2531SDV Datasheet

MFR RecommendedRFQ

SFH6325-X017T

Vishay Semiconductor Opto DivisionIn Stock: 12555SFH6325-X017T Datasheet

MFR RecommendedRFQ

SFH6326-X009

Vishay Semiconductor Opto DivisionIn Stock: 1786SFH6326-X009 Datasheet

MFR RecommendedRFQ

SFH6326-X017T

Vishay Semiconductor Opto DivisionIn Stock: 1858SFH6326-X017T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-253L-500E is determined by the following critical parameters:

Primary Substitution Criteria:

• Number of Channels: Must equal 2
• Output Type: Must be Transistor
• Current - Output / Channel: Must equal 8mA
• Operating Temperature Range: Must support -55°C ~ 100°C
• Package / Case: Must be 8-SMD, Gull Wing
• Input Type: Must be DC

Secondary Compatibility Parameters:

• Voltage - Isolation: Minimum 3750Vrms (equal or higher acceptable)
• Current Transfer Ratio (Min): Minimum 19% @ 16mA (equal or higher acceptable)
• Voltage - Output (Max): Minimum 7V (equal or higher acceptable)
• Voltage - Forward (Vf) (Typ): Maximum 1.5V (equal or lower acceptable)

The substitute parts listed below meet all primary criteria and maintain compatibility within the secondary parameter ranges. Variations in isolation voltage, current transfer ratio, and switching times reflect different product lines within the optoisolator category while preserving functional equivalence for the HCPL-253L-500E application space.

Parameter Comparison

Engineering Selection Recommendations

HCPL2530S (onsemi): This part meets all primary substitution criteria with 2500Vrms isolation. However, product status is listed as Obsolete, which limits long-term availability and supply chain reliability. Current transfer ratio minimum of 7% is lower than the HCPL-253L-500E specification of 19%, requiring circuit validation. Use only when alternative active parts are unavailable.

HCPL2530SD (Fairchild Semiconductor): Active product status with 50,682 units in stock provides strong availability. Meets all primary criteria with 2500Vrms isolation. Current transfer ratio minimum of 7% requires circuit verification. ROHS3 compliance status not specified in documentation. Suitable for applications where lower isolation voltage is acceptable.

HCPL2531SDV (Fairchild Semiconductor): Active product status with 99,900 units in stock. Matches current transfer ratio minimum of 19% with the HCPL-253L-500E. Provides 2500Vrms isolation with faster turn-off time of 300ns. ROHS3 compliance status not specified. Recommended for direct substitution when isolation voltage reduction is acceptable.

SFH6325-X017T (Vishay Semiconductor Opto Division): Active product status with 12,500 units in stock. Provides higher isolation voltage of 5300Vrms, exceeding HCPL-253L-500E specification. Current transfer ratio minimum of 7% requires circuit validation. ROHS3 compliant. Suitable for applications requiring enhanced isolation performance.

SFH6326-X009 (Vishay Semiconductor Opto Division): Active product status with 1,736 units in stock. Matches current transfer ratio minimum of 19%. Provides 5300Vrms isolation with faster turn-on time of 200ns. ROHS3 compliant. Packaging is Tube rather than Tape & Reel. Suitable for high-isolation applications with matching current transfer characteristics.

SFH6326-X017T (Vishay Semiconductor Opto Division): Active product status with 1,764 units in stock. Matches current transfer ratio minimum of 19%. Provides 5300Vrms isolation with faster turn-on time of 200ns. ROHS3 compliant. Tape & Reel packaging matches original part. Recommended for applications requiring enhanced isolation voltage with equivalent current transfer performance.

Frequently Asked Questions (FAQ)

Q: Can HCPL2530S, HCPL2530SD, or HCPL2531SDV be used as direct replacements for HCPL-253L-500E?

A: These parts meet all primary substitution criteria including 2-channel configuration, transistor output, 8mA per-channel current, and 8-SMD Gull Wing packaging. However, isolation voltage is reduced from 3750Vrms to 2500Vrms. Circuit validation is required to confirm that lower isolation voltage does not compromise system safety or performance requirements. HCPL2531SDV provides the closest electrical match with 19% minimum current transfer ratio.

Q: What is the difference between SFH6325-X017T and SFH6326-X009 / SFH6326-X017T?

A: All three Vishay parts provide 5300Vrms isolation, exceeding the HCPL-253L-500E specification. SFH6325-X017T has 7% minimum current transfer ratio. SFH6326-X009 and SFH6326-X017T both have 19% minimum current transfer ratio, matching the original part. SFH6326-X009 is packaged in Tube; SFH6326-X017T is packaged in Tape & Reel. For applications requiring matching current transfer characteristics, SFH6326-X017T is preferred.

Q: Are all substitute parts ROHS3 compliant?

A: HCPL-253L-500E, HCPL2530S, SFH6325-X017T, SFH6326-X009, and SFH6326-X017T are confirmed ROHS3 compliant. HCPL2530SD and HCPL2531SDV do not specify ROHS3 compliance status in available documentation. Verify compliance requirements with your procurement or quality assurance department before selection.

Q: What is the impact of different current transfer ratios on circuit design?

A: Current transfer ratio determines the output current relative to input current. HCPL-253L-500E specifies 19% minimum at 16mA input. Parts with 7% minimum (HCPL2530S, HCPL2530SD, SFH6325-X017T) require higher input current to achieve equivalent output current. Parts with 19% minimum (HCPL2531SDV, SFH6326-X009, SFH6326-X017T) provide equivalent current transfer performance. Circuit validation is required when substituting parts with different current transfer ratios.

Q: Can I use parts with higher isolation voltage as substitutes?

A: Yes. SFH6325-X017T and SFH6326 series provide 5300Vrms isolation, which exceeds the 3750Vrms specification of HCPL-253L-500E. Higher isolation voltage does not degrade circuit performance and may improve system safety margins. No circuit modification is required for isolation voltage upgrades.

Q: What packaging considerations apply to these substitutes?

A: All substitute parts use 8-SMD Gull Wing surface mount packaging, matching the HCPL-253L-500E. SFH6326-X009 is supplied in Tube packaging; all other parts are available in Tape & Reel or Bulk. Verify packaging compatibility with your assembly process and equipment before procurement.