Request Quote
(Ships tomorrow)
KA2902DMTF Equivalent & Substitute Parts
Part Overview
The KA2902DMTF is a general-purpose operational amplifier integrated circuit manufactured by onsemi, featuring four independent amplifier circuits in a 14-SOP surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The KA2902DMTF operates across a supply voltage range of 3 V to 26 V with an operating temperature range of -40°C to 85°C, making it suitable for general-purpose analog signal processing applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | KA2902DMTF | — |
| Manufacturer | onsemi | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Current - Input Bias | 40 | nA |
| Voltage - Input Offset | 1.5 | mV |
| Current - Supply | 1 | mA |
| Current - Output / Channel | 40 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 26 | V |
| Operating Temperature | -40°C ~ 85°C | — |
| Product Status | Obsolete | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the KA2902DMTF is determined by the following critical parameters:
Package Compatibility: The 14-SOIC (0.154", 3.90mm Width) surface mount package is the primary mechanical constraint. Substitute parts must maintain identical or compatible footprints to ensure direct board-level replacement without layout modifications.
Electrical Specifications: Substitute parts must support the supply voltage range of 3 V to 26 V minimum. The input bias current of 40 nA, input offset voltage of 1.5 mV, and output current per channel of 40 mA establish baseline performance thresholds. Parts with equal or superior specifications in these parameters are considered functionally compatible.
Circuit Configuration: All substitute parts must contain four independent amplifier circuits to maintain functional equivalence in multi-channel applications.
Operating Temperature Range: The -40°C to 85°C operating temperature range defines the thermal operating envelope. Substitute parts with extended temperature ranges (such as -40°C to 125°C) provide enhanced thermal margin and are acceptable for direct substitution.
Product Status and Compliance: Active product status and RoHS3 compliance are preferred for long-term availability and regulatory alignment, though obsolete parts with equivalent electrical characteristics remain functionally valid for existing designs.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Package / Case | Input Bias (nA) | Input Offset (mV) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| KA2902DMTF | onsemi | Obsolete | 14-SOIC (0.154", 3.90mm) | 40 | 1.5 | 40 | 3 | 26 | -40 ~ 85 | REACH Unaffected |
| LM224DR2G | onsemi | Active | 14-SOIC (0.154", 3.90mm) | 90 | 2 | 40 | 3 | 32 | -25 ~ 85 | ROHS3 Compliant |
| LM2902DR2G | onsemi | Active | 14-SOIC (0.154", 3.90mm) | 90 | 2 | 40 | 3 | 32 | -40 ~ 105 | ROHS3 Compliant |
| LM2902VDR2G | onsemi | Active | 14-SOIC (0.154", 3.90mm) | 90 | 2 | 40 | 3 | 32 | -40 ~ 125 | ROHS3 Compliant |
| LM324ADR2G | onsemi | Active | 14-SOIC (0.154", 3.90mm) | 40 | 2 | 40 | 3 | 32 | 0 ~ 70 | ROHS3 Compliant |
| LM324DR2G | onsemi | Active | 14-SOIC (0.154", 3.90mm) | 90 | 2 | 40 | 3 | 32 | 0 ~ 70 | ROHS3 Compliant |
| NCV2902DR2G | onsemi | Active | 14-SOIC (0.154", 3.90mm) | 90 | 2 | 40 | 3 | 32 | -40 ~ 125 | ROHS3 Compliant |
| LM2902DRG3 | Texas Instruments | Last Time Buy | 14-SOIC (0.154", 3.90mm) | 20 | 3 | 30 | 3 | 26 | -40 ~ 125 | ROHS3 Compliant |
| BA2902F-E2 | Rohm Semiconductor | Active | 14-SOIC (0.173", 4.40mm) | 20 | 2 | 30 | 3 | 32 | -40 ~ 125 | ROHS3 Compliant |
| LM2902D | onsemi | Obsolete | 14-SOIC (0.154", 3.90mm) | 20 | 3 | 30 | 3 | 26 | -40 ~ 125 | RoHS non-compliant |
| LM2902DR | Rohm Semiconductor | Obsolete | 14-SOIC (0.154", 3.90mm) | 20 | 1 | 30 | 3 | 32 | -40 ~ 125 | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Active Status, RoHS3 Compliant):
The LM2902DR2G, LM2902VDR2G, and NCV2902DR2G represent the most suitable direct replacements for the KA2902DMTF. These parts maintain identical package geometry (14-SOIC, 0.154", 3.90mm Width), support the required supply voltage range (3 V to 32 V), and provide extended operating temperature ranges (-40°C to 105°C or -40°C to 125°C). All three parts carry active product status and RoHS3 compliance, ensuring long-term availability and regulatory alignment.
Secondary Substitutes (Active Status, Temperature-Limited):
The LM224DR2G and LM324DR2G offer active product status and RoHS3 compliance with identical package specifications. However, the LM224DR2G operates only to -25°C minimum, and both LM324 variants are limited to 0°C to 70°C operating range. These parts are suitable for applications where the full -40°C lower temperature limit is not required.
Alternative Manufacturer Options:
The LM2902DRG3 (Texas Instruments, Last Time Buy status) and BA2902F-E2 (Rohm Semiconductor, Active) provide cross-manufacturer alternatives. The LM2902DRG3 maintains the 3 V to 26 V supply range and -40°C to 125°C operating range with RoHS3 compliance. The BA2902F-E2 features a slightly wider package body (0.173", 4.40mm Width) and reduced output current per channel (30 mA versus 40 mA), requiring verification of board layout compatibility and load current requirements.
Obsolete Alternatives (Not Recommended for New Designs):
The LM2902D and LM2902DR are obsolete parts with limited availability. The LM2902D carries RoHS non-compliance status. These parts should be considered only for legacy design maintenance where inventory exists.
Frequently Asked Questions (FAQ)
Q: Can the LM2902DR2G directly replace the KA2902DMTF without board modifications?
A: Yes. The LM2902DR2G maintains identical package geometry (14-SOIC, 0.154", 3.90mm Width), pin configuration, and electrical operating parameters within the KA2902DMTF specification envelope. No board layout changes are required for direct substitution.
Q: What is the primary difference between LM2902DR2G and LM2902VDR2G?
A: Both parts are electrically identical with the same package and electrical specifications. The primary difference is packaging format: LM2902DR2G is supplied in Cut Tape (CT) & Digi-Reel format, while LM2902VDR2G is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.
Q: Why is the BA2902F-E2 listed as a substitute if the package width differs?
A: The BA2902F-E2 has a slightly wider package body (0.173", 4.40mm versus 0.154", 3.90mm). While the pin pitch and electrical function remain compatible, board layout verification is required to confirm footprint compatibility. Additionally, the output current per channel is reduced to 30 mA, which may impact applications requiring the full 40 mA output capability.
Q: Is the LM324ADR2G suitable for applications requiring -40°C operation?
A: No. The LM324ADR2G operates only from 0°C to 70°C. For applications requiring -40°C minimum operating temperature, select LM2902DR2G, LM2902VDR2G, NCV2902DR2G, or LM2902DRG3 instead.
Q: What is the significance of "Last Time Buy" status for the LM2902DRG3?
A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for this part. Existing inventory may be available for purchase, but no future production is planned. For new designs or long-term production requirements, select active-status alternatives such as LM2902DR2G or LM2902VDR2G.
Q: Are all substitute parts RoHS3 compliant?
A: Most substitute parts carry RoHS3 compliance. The LM2902D is explicitly marked as RoHS non-compliant and should not be used in applications requiring RoHS certification. All other listed substitutes are either RoHS3 compliant or REACH unaffected.
Q: Can the LM224DR2G be used in applications operating below -25°C?
A: No. The LM224DR2G minimum operating temperature is -25°C. For applications requiring operation at -40°C, use LM2902DR2G, LM2902VDR2G, NCV2902DR2G, or LM2902DRG3.
Q: What is the difference between the onsemi LM2902 variants and the Texas Instruments LM2902DRG3?
A: Both manufacturers produce LM2902 devices with similar electrical characteristics. The onsemi variants (LM2902DR2G, LM2902VDR2G) are active products with extended availability. The Texas Instruments LM2902DRG3 is in Last Time Buy status. For new designs, onsemi variants are preferred due to active product status.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts