The LM136AH-2.5/883 is a precision 2.5 V shunt voltage reference diode manufactured by Texas Instruments, housed in a hermetic TO-46 metal can package. This device functions as a low-noise, temperature-stable reference element with tight initial accuracy, low dynamic impedance, and a well-defined knee current, making it suitable for demanding analog circuits. The “AH” grade denotes improved temperature coefficient and initial tolerance compared to standard LM136 variants, while the /883 suffix signifies full compliance with MIL-STD-883 processing, screening, and quality conformance requirements. The TO-46 package provides a hermetic seal that protects the die from moisture and contaminants, ensuring ruggedness in harsh environments.
Typical applications include precision analog-to-digital and digital-to-analog converters, voltage regulators, power supply monitoring, and signal conditioning in defense avionics, satellite systems, missile guidance, and industrial control equipment where a stable reference is critical. Because this is a military-grade component, procurement engineers must consider extended lead times, potential export controls (ITAR/EAR), and lifecycle management requirements. The /883 qualified version offers full traceability, lot-level lot grouping, and long-term availability designed to support aerospace and defense program lifecycles, but design engineers must verify current production status from Texas Instruments to mitigate obsolescence risk.
| Attribute | Value |
|---|---|
| Reference Type | Shunt |
| Output Type | Fixed |
| Voltage - Output (Min/Fixed) | 2.5V |
| Current - Output | 10 mA |
| Tolerance | ±1% |
| Current - Cathode | 400 µA |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | TO-206AB, TO-46-3 Metal Can |
| Supplier Device Package | TO-46-3 |
| Package / Pins | TO (NDV) | 3 |
| Forward Current (Abs Max) | 10 mA |
| Reverse Breakdown Voltage @ +25°C | Min 2.46 V / Max 2.51 V (Vadj = Open) |
| Reverse Breakdown Voltage Change with Current | Max 6.0 mV (0.4mA ≤ IZ ≤ 10 mA) |
| Reverse Breakdown Voltage over temp | Min 2.44 V / Max 2.54 V (Vadj = Open, subgroups 2,3) |
| Reverse Current (Abs Max) | 15 mA |
| Reverse Dynamic Impedance | Max 0.6 Ω |
| Operating Temperature Range (Abs Max) | −55°C ≤ TA ≤ +125°C |
| Storage Temperature | −60°C ≤ TA ≤ +150°C |
| Temperature Stability | Max 18 mV (VZ adjusted to 2.490V, subgroups 2,3) |
| Base Device | LM136A-2.5 |
Download the current available datasheet for LM136AH-2.5/883.
Download Datasheet 
