KRB031Alternatives & Equivalent Parts
About KRB031
KRB031 is a Phototransistor component manufactured by Kingbright. 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 | KRB031Source | L6201 | ATMEGA32U2-AU | 172448-0004 | MCP73831-2ACI/OT |
|---|---|---|---|---|---|
| Manufacturer | Kingbright | STMicroelectronics | Microchip | Molex | Microchip |
| Package Type | Other | Small Outline Packages | Quad Flat Packages | Other | SOT23 (5-Pin) |
| Pin Count | 4 | 20 | 32 | 4 | 5 |
| Temperature Range | -40.0°C ~ 85.0°C | — | -40.0°C ~ 85.0°C | -40.0°C ~ 105.0°C | -40.0°C ~ 85.0°C |
| Price | $0.8300 | $5.0237 | $2.4043 | $0.4233 | — |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||
| Pbfree Code | Yes | — | Yes | — | Yes |
| YTEOL | 3.5 | 6.4 | 14 | 6.87 | 8 |
| Coll-Emtr Bkdn Voltage-Min | 20 V | — | — | — | — |
| Configuration | SINGLE | — | — | — | — |
| Dark Current-Max | 100 nA | — | — | — | — |
| Forward Current-Max | 0.025 A | — | — | — | — |
| Gap Size | 3 mm | — | — | — | — |
| JESD-609 Code | e4 | e4 | e3 | e3 | e3 |
| Number of Functions | 1 | 1 | — | — | 1 |
| On-state Collector Current-Nom | 0.15 mA | — | — | — | — |
| Optoelectronic Device Type | TRANSISTOR OUTPUT SLOTTED SWITCH | — | — | — | — |
| Slot Width-Nom | 3 mm | — | — | — | — |
| Terminal Finish | Gold (Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) | — | Matte Tin (Sn) |
| Factory Lead Time | — | 25 Weeks | 7 Weeks | — | — |
| Built-in Protections | — | TRANSIENT; THERMAL | — | — | — |
| Input Characteristics | — | STANDARD | — | — | — |
| Interface IC Type | — | FULL BRIDGE BASED PERIPHERAL DRIVER | — | — | — |
| JESD-30 Code | — | R-PDSO-G20 | S-PQFP-G32 | — | R-PDSO-G5 |
| Output Characteristics | — | TOTEM-POLE | — | — | — |
| Output Current Flow Direction | — | SOURCE AND SINK | — | — | — |
| Output Peak Current Limit-Nom | — | 5 A | — | — | — |
| Output Polarity | — | TRUE | — | — | — |
| Package Body Material | — | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Shape | — | RECTANGULAR | SQUARE | — | RECTANGULAR |
| Package Style | — | SMALL OUTLINE | FLATPACK, THIN PROFILE | — | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | — | 260 | 260 | — | 260 |
| Qualification Status | — | Not Qualified | Not Qualified | — | Not Qualified |
| Supply Voltage-Max | — | 48 V | 5.5 V | — | — |
| Supply Voltage-Min | — | 12 V | 5 V | — | — |
| Supply Voltage-Nom | — | 36 V | 5 V | — | — |
| Surface Mount | — | YES | YES | — | YES |
| Technology | — | BCDMOS | CMOS | — | — |
| Terminal Form | — | GULL WING | GULL WING | — | GULL WING |
| Terminal Pitch | — | 1.27 mm | 0.8 mm | — | 0.95 mm |
| Terminal Position | — | DUAL | QUAD | — | DUAL |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | 40 | — | — |
| Manufacturer Package Code | — | — | TQFP-32 | — | — |
| Has ADC | — | — | NO | — | — |
| Additional Feature | — | — | ALSO OPERATES AT 2.7 V MINIMUM SUPPLY AT 8 MHZ | — | — |
| Bit Size | — | — | 8 | — | — |
| Boundary Scan | — | — | NO | — | — |
| CPU Family | — | — | AVR RISC | — | — |
| Clock Frequency-Max | — | — | 16 MHz | — | — |
| DAC Channels | — | — | NO | — | — |
| DMA Channels | — | — | NO | — | — |
| Format | — | — | FIXED POINT | — | — |
| Integrated Cache | — | — | NO | — | — |
| Low Power Mode | — | — | YES | — | — |
| Number of External Interrupts | — | — | 13 | — | — |
| Number of I/O Lines | — | — | 22 | — | — |
| Number of Serial I/Os | — | — | 1 | — | — |
| Number of Timers | — | — | 2 | — | — |
| On Chip Data RAM Width | — | — | 8 | — | — |
| On Chip Program ROM Width | — | — | 8 | — | — |
| PWM Channels | — | — | YES | — | — |
| Package Equivalence Code | — | — | TQFP32,.35SQ,32 | — | TSOP5/6,.11,37 |
| RAM (bytes) | — | — | 1024 | — | — |
| ROM (words) | — | — | 32768 | — | — |
| ROM Programmability | — | — | FLASH | — | — |
| Speed | — | — | 16 MHz | — | — |
| Temperature Grade | — | — | INDUSTRIAL | — | INDUSTRIAL |
| uPs/uCs/Peripheral ICs Type | — | — | MICROCONTROLLER, RISC | — | — |
| ## ATMEGA32U2-AU Alternates Showing results | — | — | Image | — | — |
| Connector Type | — | — | — | RECTANGULAR POWER CONNECTOR | — |
| Contact Finish Mating | — | — | — | NOT SPECIFIED | — |
| Contact Finish Termination | — | — | — | Matte Tin (Sn) - with Nickel (Ni) barrier | — |
| Contact Gender | — | — | — | MALE | — |
| Contact Material | — | — | — | NOT SPECIFIED | — |
| Contact Style | — | — | — | SQ PIN-SKT | — |
| DIN Conformance | — | — | — | NO | — |
| Empty Shell | — | — | — | NO | — |
| Filter Feature | — | — | — | NO | — |
| IEC Conformance | — | — | — | NO | — |
| Insulator Material | — | — | — | POLYAMIDE | — |
| MIL Conformance | — | — | — | NO | — |
| Mating Information | — | — | — | MULTIPLE MATING PARTS AVAILABLE | — |
| Mixed Contacts | — | — | — | NO | — |
| Mounting Type | — | — | — | BOARD | — |
| Option | — | — | — | GENERAL PURPOSE | — |
| Termination Type | — | — | — | SOLDER | — |
| Total Number of Contacts | — | — | — | 4 | — |
| UL Flammability Code | — | — | — | 94V-2 | — |
| Adjustable Threshold | — | — | — | — | YES |
| Analog IC - Other Type | — | — | — | — | LINEAR BATTERY CHARGER |
| Number of Channels | — | — | — | — | 1 |
| Supply Current-Max (Isup) | — | — | — | — | 1.5 mA |
| Supply Voltage-Max (Vsup) | — | — | — | — | 6 V |
| Supply Voltage-Min (Vsup) | — | — | — | — | 3.75 V |
| ## MCP73831-2ACI/OT 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 4 alternatives for KRB031 — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for KRB031 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 KRB031 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 KRB031?
Known equivalents for KRB031 include L6201, ATMEGA32U2-AU, 172448-0004. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of KRB031?
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 KRB031 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.