OPA336NJ/3KG4 Equivalent & Substitute Parts

Part Overview

The OPA336NJ/3KG4 is a general-purpose operational amplifier manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This device features rail-to-rail output capability and is designed for low-power applications requiring minimal input bias current. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while meeting the same electrical and mechanical specifications.

Substiute Parts

OPA336NJ/3KG4

Texas InstrumentsIn Stock: 6632OPA336NJ/3KG4 Datasheet

Current PartRFQ

OPA336NJ/3K

Texas InstrumentsIn Stock: 2632OPA336NJ/3K Datasheet

MFR RecommendedRFQ

MAX4412EUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5413MAX4412EUK+T Datasheet

MFR RecommendedRFQ

MCP6001RT-I/OT

Microchip TechnologyIn Stock: 56980MCP6001RT-I/OT Datasheet

MFR RecommendedRFQ

MCP606T-I/OT

Microchip TechnologyIn Stock: 55486MCP606T-I/OT Datasheet

MFR RecommendedRFQ

MCP6286T-E/OT

Microchip TechnologyIn Stock: 6502MCP6286T-E/OT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPA336NJ/3KG4 is determined by the following critical parameters:

Primary Substitution Criteria:

• Package compatibility: SOT-23-5 (SC-74A, SOT-753)
• Single-circuit general-purpose amplifier topology
• Rail-to-rail output capability
• Surface mount configuration
• Operating temperature range: -40°C to 85°C minimum
• Supply voltage span: 2.3 V to 5.5 V minimum overlap
• RoHS3 compliance and MSL 1 rating

Secondary Compatibility Parameters:

• Input bias current: 1 pA (ultra-low specification)
• Input offset voltage: 500 µV or lower
• Supply current: 23 µA or lower for power-sensitive applications
• Output current capability: 5 mA or higher
• Slew rate and gain bandwidth product for frequency response matching

The substitute parts listed below satisfy the primary criteria. Variations in secondary parameters indicate performance trade-offs suitable for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

OPA336NJ/3K (Texas Instruments)

This is the direct equivalent substitute for OPA336NJ/3KG4. It shares identical electrical specifications and package configuration. The primary distinction is packaging format: OPA336NJ/3K is supplied in Tape & Reel (TR) configuration versus the original part's unspecified packaging. Product status is Active, ensuring long-term availability. This substitute is recommended as the first choice for direct replacement in existing designs.

MCP606T-I/OT (Microchip Technology)

This part maintains the closest electrical performance match to the OPA336NJ/3KG4 among Microchip alternatives. Input offset voltage is superior at 250 µV versus 500 µV. Supply current is marginally lower at 18.7 µA. Slew rate is slightly higher at 0.08 V/µs. All critical parameters remain within acceptable substitution tolerance. Product status is Active with high inventory availability (55,400 pcs). This substitute is suitable for applications where the original part is unavailable and Texas Instruments alternatives are not preferred.

MCP6001RT-I/OT (Microchip Technology)

This part offers expanded supply voltage range (1.8 V to 6 V) and higher output current capability (23 mA). However, input offset voltage increases to 4.5 mV and supply current rises to 100 µA. Gain bandwidth product increases to 1 MHz. These trade-offs are acceptable for applications not constrained by ultra-low offset voltage or minimal power consumption. Product status is Active with the highest inventory level (56,967 pcs).

MCP6286T-E/OT (Microchip Technology)

This part provides the widest operating temperature range (-40°C to 125°C) and highest gain bandwidth product (3.5 MHz) among substitutes. Supply current increases to 540 µA. Input offset voltage is 1.5 mV. This substitute is appropriate for high-temperature applications or circuits requiring faster frequency response. Product status is Active.

MAX4412EUK+T (Analog Devices Inc./Maxim Integrated)

This voltage feedback amplifier exhibits significantly different performance characteristics: slew rate of 140 V/µs, -3dB bandwidth of 500 MHz, and output current of 75 mA. Supply current increases substantially to 1.7 mA. Input bias current rises to 1.6 µA. This substitute is suitable only for applications requiring high-speed operation and is not recommended for low-power or precision offset voltage requirements. Product status is Active.

Frequently Asked Questions (FAQ)

Q: Can OPA336NJ/3K directly replace OPA336NJ/3KG4 without circuit modification?

A: Yes. OPA336NJ/3K is electrically and mechanically identical to OPA336NJ/3KG4. The only difference is packaging format (Tape & Reel versus unspecified). No circuit modifications are required. Pin configuration, electrical specifications, and package outline remain unchanged.

Q: What is the primary reason to substitute the OPA336NJ/3KG4?

A: The OPA336NJ/3KG4 is discontinued at DiGi Electronics. Substitution becomes necessary to maintain supply chain continuity. OPA336NJ/3K is the recommended direct replacement due to identical specifications and active product status.

Q: Are all substitute parts pin-compatible with the original OPA336NJ/3KG4?

A: Yes. All listed substitutes use the SOT-23-5 package (SC-74A, SOT-753), which maintains identical pin configuration and spacing. Direct PCB footprint compatibility is assured.

Q: Which substitute is best for ultra-low power applications?

A: OPA336NJ/3K and MCP606T-I/OT are optimal for power-constrained designs. OPA336NJ/3K matches the original at 23 µA supply current. MCP606T-I/OT operates at 18.7 µA, providing marginal improvement. Both maintain input bias current at 1 pA. MCP6001RT-I/OT and MCP6286T-E/OT consume significantly more power (100 µA and 540 µA respectively) and are unsuitable for ultra-low power applications.

Q: Which substitute offers the best input offset voltage specification?

A: MCP606T-I/OT provides the lowest input offset voltage at 250 µV, compared to the original 500 µV. MAX4412EUK+T is also superior at 400 µV. For applications requiring precision DC accuracy, these alternatives offer improved performance.

Q: Can MAX4412EUK+T replace OPA336NJ/3KG4 in all applications?

A: No. MAX4412EUK+T is a voltage feedback amplifier with fundamentally different performance characteristics. Slew rate is 140 V/µs (versus 0.03 V/µs), and supply current is 1.7 mA (versus 23 µA). This substitute is suitable only for high-speed applications and will consume significantly more power. Circuit stability and frequency response may differ substantially.

Q: What is the temperature range limitation for substitutes?

A: OPA336NJ/3KG4 and most substitutes operate from -40°C to 85°C. MCP6286T-E/OT extends to 125°C maximum. If the original design operates within the -40°C to 85°C range, all listed substitutes are compatible. For applications exceeding 85°C, only MCP6286T-E/OT is suitable.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes carry RoHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance status.

Q: Which substitute has the highest output current capability?

A: MAX4412EUK+T provides 75 mA output current per channel, significantly exceeding the original 5 mA specification. MCP6001RT-I/OT offers 23 mA. For applications requiring higher output drive capability, these alternatives are suitable.

Q: Is packaging format (Tape & Reel vs. other formats) critical for substitution?

A: Packaging format affects supply chain logistics and handling but does not impact electrical performance or PCB compatibility. All listed substitutes are available in surface mount configurations suitable for automated assembly. Format selection depends on manufacturing volume and assembly equipment compatibility.