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LM339EDR2G Equivalent & Substitute Parts
Part Overview
The LM339EDR2G is a general-purpose quad comparator IC manufactured by onsemi, packaged in 14-SOIC surface mount configuration. This device operates across a wide supply voltage range (3V to 36V single supply, ±1.5V to ±18V dual supply) and is designed for analog signal comparison applications. The part is currently in active production status with 5100 units in stock. Substitute parts are necessary when the original part becomes unavailable, when alternative packaging or mounting technologies are required for design optimization, or when extended operating temperature ranges are needed for specific applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | LM339EDR2G |
| Manufacturer | onsemi |
| Number of Elements | 4 |
| Voltage - Supply, Single/Dual (±) | 3V ~ 36V, ±1.5V ~ 18V |
| Voltage - Input Offset (Max) | 5mV @ 5V |
| Current - Input Bias (Max) | 0.25µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V |
| Current - Quiescent (Max) | 2mA |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution of the LM339EDR2G is determined by the following critical parameters:
Electrical Compatibility Requirements:
- Number of elements: 4 comparators
- Supply voltage range: Must support at minimum 3V to 36V single supply or ±1.5V to ±18V dual supply
- Input offset voltage: Maximum 7mV @ 5V or 30V (relaxed from 5mV specification)
- Input bias current: Maximum 0.25µA @ 5V
- Output current: Minimum 16mA @ 5V
- Quiescent current: Maximum 2.5mA
Package and Mounting Compatibility:
- Primary package: 14-SOIC surface mount (direct pin-compatible substitutes)
- Alternative packages: 14-DIP through-hole, 14-TSSOP surface mount, 14-CDIP through-hole, 16-QFN surface mount (functional equivalents with different form factors)
Environmental and Compliance Requirements:
- Operating temperature: 0°C to 70°C minimum (extended range parts acceptable)
- RoHS3 compliance required
- REACH unaffected status required
Substitute parts are categorized as Upgrade (direct functional improvement) or Similar (alternative package or extended specifications).
Parameter Comparison
| Parameter | LM339EDR2G (Main) | LM2901D (Upgrade) | LM2901M/NOPB (Upgrade) | LM139J/PB (Similar) | LM239QT (Similar) | LM2901N/NOPB (Similar) | LM2901YPT (Similar) | LM339ADT (Similar) | LM339APT (Similar) |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | STMicroelectronics | Texas Instruments | Texas Instruments | STMicroelectronics | Texas Instruments | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Number of Elements | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Voltage - Supply, Single/Dual (±) | 3V ~ 36V, ±1.5V ~ 18V | 2V ~ 32V, ±1V ~ 16V | 2V ~ 36V, ±1V ~ 18V | 2V ~ 36V, ±1V ~ 18V | 2V ~ 36V, ±1V ~ 18V | 2V ~ 36V, ±1V ~ 18V | 2V ~ 32V, ±1V ~ 16V | 2V ~ 32V, ±1V ~ 16V | 2V ~ 32V, ±1V ~ 16V |
| Voltage - Input Offset (Max) | 5mV @ 5V | 7mV @ 5V | 7mV @ 30V | 5mV @ 30V | 5mV | 7mV @ 30V | 7mV @ 5V | 2mV @ 30V | 2mV @ 30V |
| Current - Input Bias (Max) | 0.25µA @ 5V | 0.25µA @ 5V | 0.25µA @ 5V | 0.1µA @ 5V | 0.25µA @ 5V | 0.25µA @ 5V | 0.25µA @ 5V | 0.1µA @ 5V | 0.1µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V | 16mA @ 5V |
| Current - Quiescent (Max) | 2mA | 2.5mA | 2.5mA | 2.5mA | 2mA | 2.5mA | 2.5mA | 2.5mA | 2.5mA |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 125°C | -40°C ~ 85°C | -55°C ~ 125°C | -40°C ~ 105°C | -40°C ~ 85°C | -40°C ~ 125°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Package / Case | 14-SOIC | 14-SOIC | 14-SOIC | 14-CDIP | 16-VFQFN | 14-DIP | 14-TSSOP | 14-SOIC | 14-TSSOP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Direct Pin-Compatible Substitutes (14-SOIC Surface Mount):
LM2901D and LM2901M/NOPB are direct electrical and mechanical substitutes for the LM339EDR2G in 14-SOIC packaging. Both parts maintain the same pinout, package dimensions, and surface mount compatibility. LM2901D from STMicroelectronics offers extended operating temperature range (-40°C to 125°C) and is suitable for industrial and automotive applications. LM2901M/NOPB from Texas Instruments provides extended temperature range (-40°C to 85°C) with identical electrical specifications. Both are ROHS3 compliant and REACH unaffected, meeting all compliance requirements.
LM339ADT and LM339APT are functionally equivalent LM339 variants from STMicroelectronics. LM339ADT maintains the same operating temperature range (0°C to 70°C) as the main part and is available in 14-SOIC packaging. LM339APT is available in 14-TSSOP surface mount package with identical electrical performance.
Alternative Package Substitutes:
LM2901N/NOPB provides through-hole 14-DIP packaging for applications requiring traditional DIP mounting. LM139J/PB offers 14-CDIP through-hole configuration with extended temperature range (-55°C to 125°C). LM2901YPT provides 14-TSSOP surface mount packaging with automotive qualification (AEC-Q100) and extended temperature range (-40°C to 125°C). LM239QT offers compact 16-QFN surface mount packaging for space-constrained designs.
All substitute parts are active production items with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance and long-term availability.
Frequently Asked Questions (FAQ)
Q: Can LM2901D be used as a direct replacement for LM339EDR2G?
A: Yes. LM2901D is a direct pin-compatible substitute in 14-SOIC surface mount packaging. Both parts have identical pinouts, package dimensions (0.154" × 3.90mm width), and electrical specifications within acceptable tolerances. The primary difference is the extended operating temperature range of LM2901D (-40°C to 125°C versus 0°C to 70°C), which provides additional design margin for industrial applications.
Q: What is the difference between LM339ADT and LM339APT?
A: Both are LM339 variants from STMicroelectronics with identical electrical specifications and operating temperature range (0°C to 70°C). The primary difference is packaging: LM339ADT is available in 14-SOIC surface mount, while LM339APT is available in 14-TSSOP surface mount. Selection depends on PCB layout requirements and available footprint space.
Q: Are through-hole alternatives available?
A: Yes. LM2901N/NOPB provides 14-DIP through-hole packaging, and LM139J/PB provides 14-CDIP through-hole packaging. Both maintain the four-comparator configuration and electrical compatibility. LM139J/PB offers extended temperature range (-55°C to 125°C) and improved input bias current specifications (0.1µA maximum).
Q: What is the significance of the 14-TSSOP package option?
A: LM2901YPT in 14-TSSOP packaging provides a compact surface mount alternative with reduced board footprint compared to 14-SOIC. This part includes automotive qualification (AEC-Q100) and extended temperature range (-40°C to 125°C), making it suitable for automotive and industrial applications requiring smaller form factors.
Q: Can LM239QT be used as a substitute despite the different package?
A: LM239QT in 16-QFN packaging is functionally equivalent but requires PCB redesign due to different pinout and package dimensions. This option is suitable only when board layout can accommodate the 16-pin QFN footprint. The 16-QFN package offers space savings for applications with tight layout constraints.
Q: What compliance certifications apply to all substitute parts?
A: All substitute parts listed are ROHS3 compliant and REACH unaffected. These certifications ensure compliance with European environmental regulations and are suitable for applications requiring regulatory compliance documentation.
Q: How do input offset voltage specifications affect substitution?
A: The LM339EDR2G specifies 5mV maximum input offset voltage at 5V. Substitute parts specify 2mV to 7mV depending on manufacturer and test conditions. Parts with lower offset voltage (2mV) provide improved precision, while parts with higher offset voltage (7mV) remain within acceptable tolerance for general-purpose comparator applications. Selection depends on circuit accuracy requirements.
Q: Are there inventory considerations for substitute selection?
A: LM339ADT has the highest inventory (50,400 units), followed by LM2901YPT (55,300 units). LM2901D has 36,100 units in stock. These inventory levels indicate strong availability for immediate procurement. Parts with lower inventory (LM139J/PB, LM239QT, LM2901N/NOPB at 2,938-3,150 units) may have longer lead times for large volume orders.
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