BAT42Alternatives & Equivalent Parts
About BAT42
BAT42 is a Diode component manufactured by STMicroelectronics. It comes in a Diodes, Axial Diameter Horizontal Mounting 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 | BAT42Source | LR645N5-G | MC7912CTG | 502382-1070 |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Microchip | ON Semiconductor | Molex |
| Package Type | Diodes, Axial Diameter Horizontal Mounting | Transistor Outline, Vertical | Transistor Outline, Vertical | Other |
| Pin Count | 2 | 3 | 3 | 12 |
| Temperature Range | -65.0°C ~ 125.0°C | — | — | -40.0°C ~ 105.0°C |
| Price | $0.0207 | $0.6700 | $0.2073 | $0.4974 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | END OF LIFE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| Factory Lead Time | 25 Weeks | 8 Weeks | — | 13 Weeks |
| YTEOL | 1 | 10 | 6.14 | 8.3 |
| Additional Feature | FAST SWITCHING | — | — | ROHS COMPLIANT, TAPE AND REEL |
| Application | GENERAL PURPOSE | — | — | — |
| Breakdown Voltage-Min | 30 V | — | — | — |
| Case Connection | ISOLATED | — | — | — |
| Configuration | SINGLE | — | — | — |
| Diode Element Material | SILICON | — | — | — |
| Diode Type | RECTIFIER DIODE | — | — | — |
| Forward Voltage-Max (VF) | 0.65 V | — | — | — |
| JEDEC-95 Code | DO-35 | — | — | — |
| JESD-30 Code | O-LALF-W2 | R-PSFM-T3 | R-PSFM-T3 | — |
| JESD-609 Code | e3 | e3 | e3 | e3 |
| Non-rep Pk Forward Current-Max | 4 A | — | — | — |
| Number of Elements | 1 | — | — | — |
| Number of Phases | 1 | — | — | — |
| Output Current-Max | 0.2 A | — | — | — |
| Package Body Material | GLASS | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Shape | ROUND | RECTANGULAR | RECTANGULAR | — |
| Package Style | LONG FORM | FLANGE MOUNT | FLANGE MOUNT | — |
| Power Dissipation-Max | 0.2 W | — | — | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — |
| Rep Pk Reverse Voltage-Max | 30 V | — | — | — |
| Reverse Current-Max | 0.5 µA | — | — | — |
| Reverse Recovery Time-Max | 0.005 µs | — | — | — |
| Reverse Test Voltage | 25 V | — | — | — |
| Surface Mount | NO | NO | NO | — |
| Technology | SCHOTTKY | — | BIPOLAR | — |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) - annealed | — |
| Terminal Form | WIRE | THROUGH-HOLE | THROUGH-HOLE | — |
| Terminal Position | AXIAL | SINGLE | SINGLE | — |
| ## BAT42 Alternates Showing results | Image | — | — | — |
| Manufacturer Package Code | — | TO-220-3 | 221AB | — |
| Adjustability | — | FIXED | FIXED | — |
| Input Voltage Absolute-Max | — | 450 V | 35 V | — |
| Input Voltage-Max | — | 450 V | 30 V | — |
| Input Voltage-Min | — | 15 V | 14.5 V | — |
| Line Regulation-Max | — | 0.2% | 0.24% | — |
| Load Regulation-Max | — | 0.4% | 0.24% | — |
| Number of Functions | — | 1 | 1 | — |
| Number of Outputs | — | 1 | 1 | — |
| Operating Temperature TJ-Max | — | 125 °C | 125 °C | — |
| Operating Temperature TJ-Min | — | -40 °C | — | — |
| Output Current1-Max | — | 0.003 A | 1 A | — |
| Output Voltage1-Max | — | 11.5 V | 12.6 V | — |
| Output Voltage1-Min | — | 9 V | 11.4 V | — |
| Output Voltage1-Nom | — | 10 V | 12 V | — |
| Package Equivalence Code | — | SIP3,.1TB | SIP3,.1TB | — |
| Packing Method | — | TUBE | RAIL | — |
| Regulator Type | — | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR | FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR | — |
| Screening Level | — | TS 16949 | — | — |
| Terminal Pitch | — | 2.54 mm | — | 1.25 mm |
| Voltage Tolerance-Max | — | 7% | 5% | — |
| Pbfree Code | — | — | Yes | Yes |
| Dropout Voltage1-Nom | — | — | 1.3 V | — |
| Reach Compliance Code | — | — | — | Compliant |
| Board Mounting Option | — | — | — | FITTING NAIL |
| Body Breadth | — | — | — | 0.215 inch |
| Body Depth | — | — | — | 0.179 inch |
| Body/Shell Style | — | — | — | RECEPTACLE |
| Connector Type | — | — | — | BOARD CONNECTOR |
| Contact Finish Mating | — | — | — | NOT SPECIFIED |
| Contact Finish Termination | — | — | — | Tin (Sn) |
| Contact Gender | — | — | — | FEMALE |
| Contact Material | — | — | — | NOT SPECIFIED |
| Contact Pattern | — | — | — | RECTANGULAR |
| Contact Resistance | — | — | — | 20 mΩ |
| Contact Style | — | — | — | BELLOWED TYPE |
| DIN Conformance | — | — | — | NO |
| Dielectric Withstanding Voltage | — | — | — | 700VAC V |
| Durability | — | — | — | 30 Cycles |
| Filter Feature | — | — | — | NO |
| IEC Conformance | — | — | — | NO |
| Insulation Resistance | — | — | — | 100000000 Ω |
| Insulator Color | — | — | — | NATURAL |
| Insulator Material | — | — | — | LIQUID CRYSTAL POLYMER |
| 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.
Need pricing on these alternatives?
Get one quote covering all 3 alternatives for BAT42 — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for BAT42 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 BAT42 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 BAT42?
Known equivalents for BAT42 include LR645N5-G, MC7912CTG, 502382-1070. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BAT42?
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 BAT42 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.