4N33Alternatives & Equivalent Parts
About 4N33
4N33 is a Integrated Circuit component manufactured by Vishay. It comes in a Dual-In-Line 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 | 4N33Source | CRCW12064K70JNEAIF | CAT24C256XI-T2 | SN75ALS176D | TC74A0-5.0VCTTR | LM317LIPKG3 |
|---|---|---|---|---|---|---|
| Manufacturer | Vishay | Vishay | ON Semiconductor | Texas Instruments | Microchip | Texas Instruments |
| Package Type | Dual-In-Line Packages | Resistor Chip | Small Outline Packages | Small Outline Packages | SOT23 (5-Pin) | Other |
| Pin Count | 6 | 2 | 8 | 8 | 5 | 3 |
| Temperature Range | -55.0°C ~ 100.0°C | -55.0°C ~ 155.0°C | -40.0°C ~ 85.0°C | ~ 70.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C |
| Price | $0.1074 | $0.0933 | $0.4500 | $1.1030 | $0.6374 | $0.1972 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE | OBSOLETE | OBSOLETE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| Pbfree Code | Yes | Yes | Yes | — | Yes | Yes |
| Factory Lead Time | 111 Weeks | 12 Weeks | — | — | 6 Weeks | — |
| YTEOL | 0 | 12 | 0 | 0 | 8 | 15 |
| Additional Feature | UL RECOGNIZED | RATED AC VOLTAGE (V): 200 | 100 YEAR DATA RETENTION | 3-STATE DRIVER OUTPUT AND RECEIVER INPUT | — | — |
| Coll-Emtr Bkdn Voltage-Min | 30 V | — | — | — | — | — |
| Configuration | SINGLE | — | — | — | — | — |
| Current Transfer Ratio-Min | 500% | — | — | — | — | — |
| Current Transfer Ratio-Nom | 500% | — | — | — | — | — |
| Dark Current-Max | 100 nA | — | — | — | — | — |
| Forward Current-Max | 0.06 A | — | — | — | — | — |
| Forward Voltage-Max | 1.5 V | — | — | — | — | — |
| Isolation Voltage-Max | 5300 V | — | — | — | — | — |
| JESD-609 Code | e3 | e3 | e3 | e4 | e3 | e3 |
| Mounting Feature | THROUGH HOLE MOUNT | SURFACE MOUNT | — | — | — | — |
| Number of Elements | 1 | — | — | — | — | — |
| On-State Current-Max | 0.1 A | — | — | — | — | — |
| Optoelectronic Device Type | DARLINGTON OUTPUT OPTOCOUPLER | — | — | — | — | — |
| Power Dissipation-Max | 0.2 W | — | — | — | — | — |
| Response Time-Max | 0.000005 s | — | — | — | — | — |
| Surface Mount | NO | YES | YES | YES | YES | YES |
| Terminal Finish | Matte Tin (Sn) | MATTE TIN OVER NICKEL | Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) | Matte Tin (Sn) |
| Reach Compliance Code | — | Compliant | Compliant | — | — | — |
| Construction | — | Rectangular | — | — | — | — |
| Package Height | — | 0.55 mm | — | — | — | — |
| Package Length | — | 3.2 mm | — | — | — | — |
| Package Style | — | SMT | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE |
| Package Width | — | 1.6 mm | — | — | — | — |
| Packing Method | — | TR, PAPER, 7 INCH | — | — | — | TR |
| Rated Power Dissipation (P) | — | 0.25 W | — | — | — | — |
| Rated Temperature | — | 70 °C | — | — | — | — |
| Reference Standard | — | AEC-Q200 | — | — | — | — |
| Resistance | — | 4700 Ω | — | — | — | — |
| Resistor Type | — | FIXED RESISTOR | — | — | — | — |
| Size Code | — | 1206 | — | — | — | — |
| Technology | — | METAL GLAZE/THICK FILM | CMOS | BIPOLAR | — | BIPOLAR |
| Temperature Coefficient | — | 200 ppm/°C | — | — | — | — |
| Terminal Shape | — | WRAPAROUND | — | — | — | — |
| Tolerance | — | 5% | — | — | — | — |
| Working Voltage | — | 200 V | — | — | — | — |
| Manufacturer Package Code | — | — | 751BE | — | SOT-23-5 | — |
| Clock Frequency-Max (fCLK) | — | — | 0.4 MHz | — | — | — |
| Data Retention Time-Min | — | — | 100 | — | — | — |
| Endurance | — | — | 1000000 Write/Erase Cycles | — | — | — |
| I2C Control Byte | — | — | 1010DDDR | — | — | — |
| JESD-30 Code | — | — | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G5 | R-PSSO-F3 |
| Memory Density | — | — | 262144 bit | — | — | — |
| Memory IC Type | — | — | EEPROM | — | — | — |
| Memory Width | — | — | 8 | — | — | — |
| Number of Functions | — | — | 1 | 1 | 1 | 1 |
| Number of Words | — | — | 32768 words | — | — | — |
| Number of Words Code | — | — | 32000 | — | — | — |
| Operating Mode | — | — | SYNCHRONOUS | — | — | — |
| Organization | — | — | 32KX8 | — | — | — |
| Package Body Material | — | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | — | — | SOP8,.3 | SOP8,.25 | TSOP5/6,.11,37 | TO-243 |
| Package Shape | — | — | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Parallel/Serial | — | — | SERIAL | — | — | — |
| Peak Reflow Temperature (Cel) | — | — | 260 | 260 | 260 | 260 |
| Power Supplies | — | — | 2/5 V | — | — | — |
| Qualification Status | — | — | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Serial Bus Type | — | — | I2C | — | — | — |
| Standby Current-Max | — | — | 0.000001 A | — | — | — |
| Subcategory | — | — | EEPROMs | — | — | — |
| Supply Current-Max | — | — | 0.003 mA | 30 mA | — | — |
| Supply Voltage-Max (Vsup) | — | — | 5.5 V | — | 5.5 V | — |
| Supply Voltage-Min (Vsup) | — | — | 1.8 V | — | 2.7 V | — |
| Supply Voltage-Nom (Vsup) | — | — | 5 V | — | 5 V | — |
| Temperature Grade | — | — | INDUSTRIAL | COMMERCIAL | AUTOMOTIVE | — |
| Terminal Form | — | — | GULL WING | GULL WING | GULL WING | FLAT |
| Terminal Pitch | — | — | 1.27 mm | 1.27 mm | 0.95 mm | 1.5 mm |
| Terminal Position | — | — | DUAL | DUAL | DUAL | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | — | — | 40 | NOT SPECIFIED | — | 30 |
| Write Cycle Time-Max (tWC) | — | — | 5 ms | — | — | — |
| Write Protection | — | — | HARDWARE | — | — | — |
| Differential Output | — | — | — | YES | — | — |
| Driver Number of Bits | — | — | — | 1 | — | — |
| High Level Input Current-Max | — | — | — | 0.00002 A | — | — |
| Input Characteristics | — | — | — | DIFFERENTIAL SCHMITT TRIGGER | — | — |
| Interface IC Type | — | — | — | LINE TRANSCEIVER | — | — |
| Interface Standard | — | — | — | EIA-422-B; TIA-422-B; EIA-485-A; TIA-485-A; V.11; X.27 | — | — |
| Out Swing-Min | — | — | — | 1.5 V | — | — |
| Output Characteristics | — | — | — | 3-STATE | — | — |
| Output Low Current-Max | — | — | — | 0.008 A | — | — |
| Output Polarity | — | — | — | COMPLEMENTARY | — | — |
| Receive Delay-Max | — | — | — | 19 ns | — | — |
| Receiver Number of Bits | — | — | — | 4 | — | — |
| Supply Voltage-Max | — | — | — | 5.25 V | — | — |
| Supply Voltage-Min | — | — | — | 4.75 V | — | — |
| Supply Voltage-Nom | — | — | — | 5 V | — | — |
| Supply Voltage1-Max | — | — | — | 5.25 V | — | — |
| Supply Voltage1-Min | — | — | — | 4.75 V | — | — |
| Supply Voltage1-Nom | — | — | — | 5 V | — | — |
| Transmit Delay-Max | — | — | — | 13 ns | — | — |
| ## SN75ALS176D Alternates Showing results | — | — | — | Image | — | — |
| Analog IC - Other Type | — | — | — | — | ANALOG CIRCUIT | — |
| ## TC74A0-5.0VCTTR Alternates Showing results | — | — | — | — | Image | — |
| Adjustability | — | — | — | — | — | ADJUSTABLE |
| Dropout Voltage1-Nom | — | — | — | — | — | 2 V |
| Input Voltage-Max | — | — | — | — | — | 35 V |
| Input Voltage-Min | — | — | — | — | — | 3.75 V |
| Input-Output Voltage Differential-Max | — | — | — | — | — | 35 V |
| Input-Output Voltage Differential-Min | — | — | — | — | — | 5 V |
| Line Regulation-Max (%/V) | — | — | — | — | — | 0.05 |
| Load Regulation-Max(%) | — | — | — | — | — | 0.05% |
| Number of Outputs | — | — | — | — | — | 1 |
| Operating Temperature TJ-Max | — | — | — | — | — | 125 °C |
| Operating Temperature TJ-Min | — | — | — | — | — | -40 °C |
| Output Current1-Max | — | — | — | — | — | 0.1 A |
| Output Voltage1-Max | — | — | — | — | — | 37 V |
| Output Voltage1-Min | — | — | — | — | — | 1.25 V |
| Regulator Type | — | — | — | — | — | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Voltage Tolerance-Max | — | — | — | — | — | 4% |
| ## LM317LIPKG3 Alternates Showing results | — | — | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Why Look for Alternatives?
Finding alternatives for 4N33 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 4N33 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 4N33?
Known equivalents for 4N33 include CRCW12064K70JNEAIF, CAT24C256XI-T2, SN75ALS176D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of 4N33?
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 4N33 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.