Description:

Lot of 6x MIL-SPEC solid tantalum capacitors, M39003/09-2031 (hermetic axial can). Each marked “+150µF 10% 15V” with M39003 series code; the plus sign indicates the positive lead. Ideal for vintage repair, avionics/defense restorations, and high-reliability builds where hermetic sealing and long shelf-life matter. Stored as NOS; leads are full-length.

Features & Specifications:

- Series: M39003 (MIL-PRF-39003), hermetically sealed solid tantalum

- Slash sheet: /09-2031 (value/voltage combination)

- Capacitance: 150 µF

- Voltage rating: 15 VDC

- Tolerance: ±10% (body marked “10%”)

- Polarity: Polarized (positive lead indicated by “+”)

- Package: Axial leaded, metal can (hermetic)

- Operating temperature (typical for M39003): −55 °C to +125 °C

- Markings seen: “M39003 09-2031J”, “+150µF 10% 15V”, “31433”, “8821 WC K”

- Condition: New old stock (NOS), unmounted; some cosmetic aging on cans only

Applications:

- Military/avionics and industrial gear maintenance

- Vintage audio/radio and test equipment restoration

- High-reliability power filtering and decoupling where hermetic parts are preferred

Compatibility note:

Polarized solid tantalum—observe polarity (+ marked). Verify capacitance/voltage vs. your circuit; lead spacing and axial form factor make these drop-in for many legacy designs. For non-polar positions use a bipolar part instead.