SMAJ22CAAlternatives & Equivalent Parts
About SMAJ22CA
SMAJ22CA is a TVS Diode (Bi-directional) component manufactured by LITTELFUSE. It comes in a Diodes Moulded Non Polarised 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 | SMAJ22CASource | SM4T28AY | SMAJ28A | MCP1804T-5002I/MB |
|---|---|---|---|---|
| Manufacturer | LITTELFUSE | STMicroelectronics | LITTELFUSE | Microchip |
| Package Type | Diodes Moulded Non Polarised | Other | Diodes Moulded | Other |
| Pin Count | 2 | 2 | 2 | 3 |
| Temperature Range | -65.0°C ~ 150.0°C | -55.0°C ~ 150.0°C | -65.0°C ~ 150.0°C | -40.0°C ~ 85.0°C |
| Price | $0.0388 | $0.0980 | $0.0169 | $0.6840 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| Pbfree Code | No | — | No | Yes |
| YTEOL | 6.1 | 6 | 6.1 | 9 |
| Breakdown Voltage-Max | 26.9 V | 29.5 V | 34.4 V | — |
| Breakdown Voltage-Min | 24.4 V | 26.7 V | 31.1 V | — |
| Breakdown Voltage-Nom | 25.65 V | 28.1 V | 32.75 V | — |
| Clamping Voltage-Max | 35.5 V | 50 V | 45.4 V | — |
| Configuration | SINGLE, 1 CHANNEL | SINGLE, 1 CHANNEL | SINGLE, 1 CHANNEL | — |
| Diode Element Material | SILICON | SILICON | SILICON | — |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE | TRANS VOLTAGE SUPPRESSOR DIODE | TRANS VOLTAGE SUPPRESSOR DIODE | — |
| JEDEC-95 Code | DO-214AC | DO-214AC | DO-214AC | — |
| JESD-30 Code | R-PDSO-C2 | R-PDSO-C2 | R-PDSO-C2 | R-PSSO-F3 |
| Non-rep Peak Rev Power Dis-Max | 400 W | 400 W | 400 W | — |
| Number of Elements | 1 | 1 | 1 | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 |
| Polarity | BIDIRECTIONAL | UNIDIRECTIONAL | UNIDIRECTIONAL | — |
| Power Dissipation-Max | 3.3 W | — | 3.3 W | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Reference Standard | IEC-61000-4-2; UL RECOGNIZED | AEC-Q101; IEC-61000-4-2; ISO 10605 | IEC-61000-4-2; UL RECOGNIZED | — |
| Rep Pk Reverse Voltage-Max | 22 V | 24 V | 28 V | — |
| Reverse Current-Max | 1 µA | 0.2 µA | 1 µA | — |
| Reverse Test Voltage | 22 V | 24 V | 28 V | — |
| Surface Mount | YES | YES | YES | YES |
| Technology | AVALANCHE | AVALANCHE | AVALANCHE | CMOS |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | C BEND | C BEND | C BEND | FLAT |
| Terminal Position | DUAL | DUAL | DUAL | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | 30 | 40 |
| Factory Lead Time | — | 53 Weeks, 1 Day | — | 16 Weeks |
| JESD-609 Code | — | e3 | — | e3 |
| ## SM4T28AY Alternates Showing results | — | Image | — | — |
| Forward Voltage-Max (VF) | — | — | 3.5 V | — |
| Manufacturer Package Code | — | — | — | SOT-89-3 |
| Adjustability | — | — | — | FIXED |
| Dropout Voltage1-Max | — | — | — | 1.3 V |
| Dropout Voltage1-Nom | — | — | — | 1 V |
| Input Voltage Absolute-Max | — | — | — | 30 V |
| Input Voltage-Max | — | — | — | 28 V |
| Input Voltage-Min | — | — | — | 7 V |
| Line Regulation-Max | — | — | — | 0.315% |
| Load Regulation-Max | — | — | — | 0.09% |
| Number of Functions | — | — | — | 1 |
| Number of Outputs | — | — | — | 1 |
| Operating Temperature TJ-Max | — | — | — | 125 °C |
| Operating Temperature TJ-Min | — | — | — | -40 °C |
| Output Current1-Max | — | — | — | 0.15 A |
| Output Voltage1-Max | — | — | — | 5.1 V |
| Output Voltage1-Min | — | — | — | 4.9 V |
| Output Voltage1-Nom | — | — | — | 5 V |
| Package Equivalence Code | — | — | — | TO-243 |
| Packing Method | — | — | — | TR |
| Regulator Type | — | — | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | — | — | — | TS 16949 |
| Terminal Pitch | — | — | — | 1.5 mm |
| Voltage Tolerance-Max | — | — | — | 2% |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Quick Links
Why Look for Alternatives?
Finding alternatives for SMAJ22CA 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 SMAJ22CA 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 SMAJ22CA?
Known equivalents for SMAJ22CA include SM4T28AY, SMAJ28A, MCP1804T-5002I/MB. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SMAJ22CA?
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 SMAJ22CA 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.