1N4149Alternatives & Equivalent Parts
About 1N4149
1N4149 is a Diode component manufactured by ON Semiconductor. It comes in a Other 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 | 1N4149Source | MCP2021AT-500E/SN | 53398-1071 |
|---|---|---|---|
| Manufacturer | ON Semiconductor | Microchip | Molex |
| Package Type | Other | Small Outline Packages | Other |
| Pin Count | 2 | 8 | 12 |
| Temperature Range | ~ 175.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C |
| Price | $0.0123 | $1.1900 | $0.2700 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | OBSOLETE | ACTIVE |
| Electrical Parameters | |||
| Pbfree Code | Yes | — | Yes |
| Manufacturer Package Code | 017AG | SOIC-8 | — |
| YTEOL | 5.8 | 0 | 8.3 |
| Application | GENERAL PURPOSE | — | — |
| Breakdown Voltage-Min | 75 V | — | — |
| Case Connection | ISOLATED | — | — |
| Configuration | SINGLE | — | — |
| Diode Element Material | SILICON | — | — |
| Diode Type | RECTIFIER DIODE | — | — |
| Forward Voltage-Max (VF) | 1 V | — | — |
| JEDEC-95 Code | DO-35 | — | — |
| JESD-30 Code | O-PALF-W2 | R-PDSO-G8 | — |
| JESD-609 Code | e3 | e3 | e3 |
| Non-rep Pk Forward Current-Max | 2 A | — | — |
| Number of Elements | 1 | — | — |
| Number of Phases | 1 | — | — |
| Output Current-Max | 0.5 A | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Shape | ROUND | RECTANGULAR | — |
| Package Style | LONG FORM | SMALL OUTLINE | — |
| Power Dissipation-Max | 0.5 W | — | — |
| Qualification Status | Not Qualified | — | — |
| Rep Pk Reverse Voltage-Max | 100 V | — | — |
| Reverse Current-Max | 0.025 µA | — | — |
| Reverse Recovery Time-Max | 0.004 µs | — | — |
| Reverse Test Voltage | 20 V | — | — |
| Surface Mount | NO | YES | — |
| Terminal Finish | MATTE TIN | Matte Tin (Sn) | — |
| Terminal Form | WIRE | GULL WING | — |
| Terminal Position | AXIAL | DUAL | — |
| Factory Lead Time | — | 6 Weeks | — |
| Number of Functions | — | 1 | — |
| Number of Transceivers | — | 1 | — |
| Package Equivalence Code | — | SOP8,.25 | — |
| Screening Level | — | TS 16949 | — |
| Supply Voltage-Nom | — | 12 V | — |
| Telecom IC Type | — | CAN TRANSCEIVER | — |
| Temperature Grade | — | AUTOMOTIVE | — |
| Terminal Pitch | — | 1.27 mm | 1.25 mm |
| ## MCP2021AT-500E/SN Alternates Showing results | — | Image | — |
| Additional Feature | — | — | PICOBLADE |
| Board Mounting Option | — | — | FITTING NAIL |
| Body Breadth | — | — | 0.146 inch |
| Body Depth | — | — | 0.185 inch |
| Body Length | — | — | 0.679 inch |
| Body/Shell Style | — | — | RECEPTACLE |
| Connector Type | — | — | BOARD CONNECTOR |
| Contact Finish Mating | — | — | NOT SPECIFIED |
| Contact Finish Termination | — | — | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | — | — | MALE |
| Contact Material | — | — | PHOSPHOR BRONZE |
| Contact Pattern | — | — | RECTANGULAR |
| Contact Resistance | — | — | 20 mΩ |
| Contact Style | — | — | BLADE PIN-SKT |
| DIN Conformance | — | — | NO |
| Dielectric Withstanding Voltage | — | — | 250VAC V |
| Durability | — | — | 30 Cycles |
| Filter Feature | — | — | NO |
| IEC Conformance | — | — | NO |
| Insulation Resistance | — | — | 100000000 Ω |
| Insulator Color | — | — | NATURAL |
| Insulator Material | — | — | POLYAMIDE |
| MIL Conformance | — | — | NO |
| Mating Contact Pitch | — | — | 0.049 inch |
| Mating Information | — | — | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | — | — | NO |
| Mounting Option 1 | — | — | LOCKING |
| Mounting Style | — | — | STRAIGHT |
| Mounting Type | — | — | BOARD |
| Number Of Connectors | — | — | ONE |
| Number Of PCB Rows | — | — | 1 |
| Number of Rows Loaded | — | — | 1 |
| Option | — | — | GENERAL PURPOSE |
| PCB Contact Pattern | — | — | RECTANGULAR |
| Plating Thickness | — | — | 39u inch |
| Polarization Key | — | — | POLARIZED HOUSING |
| Rated Current (Signal) | — | — | 1 A |
| Reference Standard | — | — | UL |
| Termination Type | — | — | SURFACE MOUNT |
| Total Number of Contacts | — | — | 10 |
| UL Flammability Code | — | — | 94V-0 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 2 alternatives for 1N4149 — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for 1N4149 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 1N4149 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.
Can't Find What You Need?
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FAQ
What is equivalent to 1N4149?
Known equivalents for 1N4149 include MCP2021AT-500E/SN, 53398-1071. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of 1N4149?
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 1N4149 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.