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CD40106BCN Equivalent & Substitute Parts
Part Overview
The CD40106BCN is a 6-channel inverter IC with Schmitt trigger functionality in a 14-pin DIP package, manufactured by onsemi. This device operates across a wide supply voltage range of 3V to 15V and is designed for logic inversion applications requiring hysteresis input characteristics. The CD40106BCN is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and procurement planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CD40106BCN |
| Manufacturer | onsemi |
| Logic Type | Inverter |
| Number of Circuits | 6 |
| Number of Inputs | 1 |
| Features | Schmitt Trigger |
| Voltage - Supply | 3V ~ 15V |
| Current - Quiescent (Max) | 4 µA |
| Current - Output High, Low | 3.4mA, 3.4mA |
| Max Propagation Delay @ 15V, 50pF | 160ns |
| Operating Temperature | -55°C ~ 125°C |
| Package / Case | 14-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the CD40106BCN is determined by the following critical parameters:
- Logic Function: Both main and substitute parts must be 6-channel inverters with Schmitt trigger inputs
- Pin Configuration: 14-pin DIP package with identical pinout
- Supply Voltage Range: Substitute must support the operating voltage envelope
- Output Drive Capability: Current output specifications must meet or exceed application requirements
- Propagation Delay: Maximum delay specifications must be compatible with system timing
- Operating Temperature Range: Must support the full -55°C to 125°C range
- Mounting Type: Through-hole DIP package for PCB compatibility
The CD40106BE from Texas Instruments qualifies as a direct substitute based on these parameters. Both devices share the same base product number (CD40106), identical circuit count and configuration, and compatible electrical characteristics within the specified operating envelope.
Parameter Comparison
| Parameter | CD40106BCN (onsemi) | CD40106BE (Texas Instruments) |
|---|---|---|
| Logic Type | Inverter | Inverter |
| Number of Circuits | 6 | 6 |
| Number of Inputs | 1 | 1 |
| Features | Schmitt Trigger | Schmitt Trigger |
| Voltage - Supply | 3V ~ 15V | 3V ~ 18V |
| Current - Quiescent (Max) | 4 µA | 4 µA |
| Current - Output High, Low | 3.4mA, 3.4mA | 3.4mA, 3.4mA |
| Max Propagation Delay @ 15V, 50pF | 160ns | 120ns |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Package / Case | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The CD40106BE from Texas Instruments is a qualified substitute for the CD40106BCN. The Texas Instruments device offers the following advantages:
- Active Product Status: The CD40106BE is actively manufactured and supported, ensuring long-term availability and supply chain continuity
- Extended Supply Voltage Range: Rated for 3V to 18V operation, providing broader compatibility with varying system power supplies
- Improved Propagation Delay: 120ns maximum delay at 15V and 50pF load, compared to 160ns for the onsemi part, offering faster signal response
- RoHS3 Compliance: The CD40106BE meets RoHS3 environmental standards, supporting modern manufacturing and regulatory requirements
- Identical Electrical Performance: Matching quiescent current, output drive capability, and operating temperature range ensure functional equivalence
Both devices share identical pin assignments and package dimensions, enabling direct PCB substitution without layout modifications.
Frequently Asked Questions (FAQ)
Q: Can the CD40106BE directly replace the CD40106BCN without PCB modifications?
A: Yes. Both devices use the 14-DIP package with 0.300" (7.62mm) spacing and identical pinout. Direct substitution on existing PCBs is possible without layout changes.
Q: What are the key differences between these two parts?
A: The primary differences are product status (obsolete vs. active), supply voltage range (15V vs. 18V maximum), propagation delay (160ns vs. 120ns), and compliance certifications. The CD40106BE offers improved performance and regulatory compliance.
Q: Are the input logic level thresholds compatible?
A: Both devices implement Schmitt trigger inputs with different threshold specifications. The CD40106BCN specifies input low levels of 0.7V to 2.1V and high levels of 4.3V to 12.9V. The CD40106BE specifies 0.9V to 4V for low and 3.6V to 10.8V for high. Applications must verify that input signal levels meet the substitute part's threshold requirements.
Q: Is the CD40106BE suitable for -55°C to 125°C temperature range applications?
A: Yes. The CD40106BE is rated for the full -55°C to 125°C operating temperature range, matching the CD40106BCN specification.
Q: What packaging options are available for the CD40106BE?
A: The CD40106BE is supplied in tube packaging. The device maintains the same 14-PDIP package configuration as the CD40106BCN.
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