LCP1521SAlternatives & Equivalent Parts
About LCP1521S
LCP1521S is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | LCP1521SSource | LCP1531RL | ITA25B1 | LDP24A | RBO08-40G | SMB6F26AY | TCPP03-M20 | SM5908 | RBO40-40G-TR | TCPP01-M12 |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Diodes, Axial Diameter Horizontal Mounting | Other | Diodes Moulded Non Polarised | Quad Flat No-Lead | Diodes Moulded | Other | Quad Flat No-Lead |
| Pin Count | 8 | 8 | 8 | 2 | 3 | 2 | 21 | 2 | 4 | 13 |
| Temperature Range | -40.0°C ~ 85.0°C | — | ~ 125.0°C | ~ 175.0°C | ~ 150.0°C | -55.0°C ~ 175.0°C | -40.0°C ~ 125.0°C | -55.0°C ~ 175.0°C | — | -40.0°C ~ 85.0°C |
| Price | $0.3256 | $0.2822 | $0.8913 | $1.2461 | $0.9743 | $0.2000 | $0.9045 | $0.3351 | $1.5331 | $0.4103 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | END OF LIFE | OBSOLETE | END OF LIFE | OBSOLETE | ACTIVE UNCONFIRMED | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||||||
| YTEOL | 0 | 1 | 0 | 1 | 0 | 6.46 | 6 | 6.41 | 6 | 4 |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | O-PALF-W2 | R-PSSO-G2 | R-PDSO-F2 | S-XQCC-N20 | R-PDSO-C2 | — | S-XQCC-N12 |
| JESD-609 Code | e4 | e4 | e4 | e3 | e3 | e3 | — | — | e3 | — |
| Number of Functions | 1 | 1 | — | — | — | — | 1 | — | — | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | UNSPECIFIED | PLASTIC/EPOXY | — | UNSPECIFIED |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | ROUND | RECTANGULAR | RECTANGULAR | SQUARE | RECTANGULAR | — | SQUARE |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | LONG FORM | SMALL OUTLINE | SMALL OUTLINE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE | — | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | — | NOT SPECIFIED | 260 | — | — | NOT SPECIFIED | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | — | — | Not Qualified | — | — |
| Surface Mount | YES | YES | YES | NO | YES | YES | YES | YES | — | YES |
| Telecom IC Type | GAS DISCHARGE TUBE SUPPRESSOR | GAS DISCHARGE TUBE SUPPRESSOR | — | — | — | — | — | — | — | — |
| Temperature Grade | INDUSTRIAL | — | — | — | — | — | — | — | — | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) - annealed | Matte Tin (Sn) | Matte Tin (Sn) | — | — | Matte Tin (Sn) | — |
| Terminal Form | GULL WING | GULL WING | GULL WING | WIRE | GULL WING | FLAT | NO LEAD | C BEND | — | NO LEAD |
| Terminal Pitch | 1.27 mm | 1.27 mm | — | — | — | — | 0.5 mm | — | — | 0.5 mm |
| Terminal Position | DUAL | DUAL | DUAL | AXIAL | SINGLE | DUAL | QUAD | DUAL | — | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | 30 | — | NOT SPECIFIED | 10 | — | — | NOT SPECIFIED | — |
| ## LCP1521S Alternates Showing results | Image | — | — | — | — | — | — | — | — | — |
| Factory Lead Time | — | 53 Weeks, 1 Day | — | — | — | 111 Weeks | — | 13 Weeks | — | 20 Weeks |
| Breakdown Voltage-Min | — | — | 25 V | 25 V | — | 28.9 V | — | 6 V | — | — |
| Clamping Voltage-Max | — | — | 38 V | 40 V | 40 V | 42.1 V | — | 8.5 V | — | — |
| Configuration | — | — | COMMON CATHODE, 6 ELEMENTS, 6 CHANNEL | SINGLE, 1 CHANNEL | SINGLE WITH BUILT-IN DIODE | SINGLE | — | SINGLE, 1 CHANNEL | — | — |
| Diode Capacitance-Min | — | — | 300 pF | — | — | — | — | — | — | — |
| Diode Element Material | — | — | SILICON | SILICON | — | SILICON | — | SILICON | — | — |
| Diode Type | — | — | TRANS VOLTAGE SUPPRESSOR DIODE | TRANS VOLTAGE SUPPRESSOR DIODE | — | TRANS VOLTAGE SUPPRESSOR DIODE | — | TRANS VOLTAGE SUPPRESSOR DIODE | — | — |
| Non-rep Peak Rev Power Dis-Max | — | — | 300 W | — | — | 600 W | — | 1500 W | — | — |
| Number of Elements | — | — | 6 | 1 | 1 | 1 | — | 1 | — | — |
| Polarity | — | — | BIDIRECTIONAL | UNIDIRECTIONAL | — | UNIDIRECTIONAL | — | UNIDIRECTIONAL | — | — |
| Reference Standard | — | — | IEC-61000-4-2; MIL-STD-883G | — | — | AEC-Q101; IEC-61000-4-2, 4-4; MIL-STD-750 | — | IEC-61000-4-2, 4-4, 4-5; MIL-STD-750; MIL-STD-883G | — | — |
| Rep Pk Reverse Voltage-Max | — | — | 24 V | 24 V | — | 26 V | — | 5 V | — | — |
| Reverse Current-Max | — | — | 4 µA | 50 µA | — | 0.2 µA | — | 300 µA | — | — |
| Reverse Test Voltage | — | — | 24 V | 24 V | — | 26 V | — | 5 V | — | — |
| Technology | — | — | AVALANCHE | AVALANCHE | — | AVALANCHE | — | AVALANCHE | — | — |
| Date Of Intro | — | — | — | 1980-01-04 | — | 2019-03-29 | — | — | — | 2019-09-09 |
| Breakdown Voltage-Max | — | — | — | 32 V | — | 31.9 V | — | — | — | — |
| Breakdown Voltage-Nom | — | — | — | 28.5 V | — | 30.4 V | — | — | — | — |
| Case Connection | — | — | — | ISOLATED | — | — | — | — | — | — |
| Power Dissipation-Max | — | — | — | 5 W | — | — | — | — | — | — |
| ## LDP24A Alternates Showing results | — | — | — | Image | — | — | — | — | — | — |
| Additional Feature | — | — | — | — | HIGH RELIABILITY | ISO 7637-2, ISO 10605 | Adjustable Current Limit | UL RECOGNIZED | — | — |
| Trigger Device Type | — | — | — | — | SILICON SURGE PROTECTOR | — | — | — | — | — |
| JEDEC-95 Code | — | — | — | — | — | DO-221AA | — | DO-214AB | — | — |
| Adjustable Threshold | — | — | — | — | — | — | YES | — | — | YES |
| Analog IC - Other Type | — | — | — | — | — | — | LOAD SWITCH | — | — | USB PD CONTROLLER |
| Number of Channels | — | — | — | — | — | — | 1 | — | — | 4 |
| Package Equivalence Code | — | — | — | — | — | — | LCC20,.16SQ,20 | — | — | LCC12,.12SQ,20 |
| Supply Current-Max (Isup) | — | — | — | — | — | — | 2.7 mA | — | — | 0.12 mA |
| Supply Voltage-Max (Vsup) | — | — | — | — | — | — | 5.5 V | — | — | 3.6 V |
| Supply Voltage-Min (Vsup) | — | — | — | — | — | — | 2.7 V | — | — | 3 V |
| Supply Voltage-Nom (Vsup) | — | — | — | — | — | — | 3 V | — | — | 3.3 V |
| Threshold Voltage-Nom | — | — | — | — | — | — | 2.4 | — | — | +6V |
| ## RBO40-40G-TR Alternates Showing results | — | — | — | — | — | — | — | — | Image | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 9 alternatives for LCP1521S — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for LCP1521S is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating LCP1521S replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to LCP1521S?
Known equivalents for LCP1521S include LCP1531RL, ITA25B1, LDP24A. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LCP1521S?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify LCP1521S alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.