UC1543J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
UC1543J is a single-channel voltage supervisor and reset IC from Texas Instruments in a ceramic 16-pin DIP package. It monitors supply rails and asserts reset to protect systems from undervoltage faults. From $8.50 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UC1543J Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel voltage supervisor with fixed threshold detection ensures reliable system reset on undervoltage events
- Ceramic glass-sealed DIP-16 package offers superior reliability for military, aerospace, and harsh-environment applications
- Single-function reset architecture simplifies integration into power sequencing circuits without additional discrete components
- JESD-609 compliant and rated for extended temperature ranges common in industrial and defense electronics
Applications
UC1543J is used as a system reset supervisor in mission-critical embedded controllers, military electronics, and industrial PLCs where supply rail integrity must be continuously monitored. Its ceramic 16-pin DIP package makes it particularly suitable for high-reliability designs operating in wide temperature environments such as aerospace avionics and defense communication systems. The device also fits legacy board repairs and retrofit designs requiring a through-hole reset IC with guaranteed long-term availability.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 15mA |
| Supply Voltage-Max (Vsup) | 40V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 10V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.5V |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC1543J:
Frequently Asked Questions
What is the package type of UC1543J and why is it preferred in high-reliability designs?
UC1543J comes in a ceramic glass-sealed 16-pin DIP package (DIP-16, 0.3-inch pitch). Ceramic packaging provides hermetic sealing, which resists moisture ingress and extreme temperatures, making it the preferred choice for aerospace, defense, and industrial systems that must operate reliably over thousands of hours.
How many channels does UC1543J monitor, and is its threshold voltage adjustable?
UC1543J monitors a single voltage channel with a fixed, non-adjustable threshold. This single-function, 1-channel architecture reduces component count and design complexity in systems where only one supply rail requires supervision and reset assertion.
In which applications is UC1543J commonly used as a voltage supervisor?
UC1543J is used in military avionics, aerospace control electronics, and industrial automation controllers where a 16-pin ceramic DIP voltage supervisor provides supply monitoring across a wide temperature range. It is also used in legacy telecom and defense boards requiring a through-hole reset IC with long lifecycle availability of 15 years (YTEOL).
What distinguishes UC1543J from plastic-packaged voltage supervisors in procurement?
UC1543J uses a ceramic glass-sealed body (JESD-609 code e0) rather than a plastic mold compound, giving it superior moisture resistance and a broader operating temperature range. For procurement in defense or space programs, this ceramic qualification is often a hard requirement that standard plastic 1-channel supervisors cannot meet.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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