Lockheed Martin, Fujitsu Sign Initial Contract for SPY-7 Radar Power Supply Units for Japan’s ASEV

Why It Matters

The deal anchors a Japan‑based supply chain for next‑generation naval radars, influencing the competitive landscape of Aegis‑compatible systems and bolstering Japan’s defense self‑sufficiency.

Key Takeaways

• Lockheed, Fujitsu sign first SPY-7 power supply contract.
• PS LRU powers SPY-7 Subarray Suite on ASEV vessels.
• ASEV commissioning slated for FY2027 and FY2028.
• SPY-7 competes with Raytheon’s SPY-6 for DDGX ships.
• Contract strengthens Japan’s indigenous defense production base.

Pulse Analysis

The February agreement marks a pivotal shift toward domesticizing high‑tech naval components in Japan. By appointing Fujitsu as the supplier of the Power Supply Line Replaceable Unit, Lockheed Martin secures a reliable, locally produced power source for the SPY‑7 radar’s Subarray Suite. This move not only shortens lead times for the ASEV program but also aligns with Japan’s broader strategy to reduce reliance on overseas parts, enhancing logistical resilience for its growing fleet of Aegis‑equipped vessels.

Technologically, the SPY‑7 leverages a scalable gallium‑nitride (GaN) AESA architecture that promises superior power efficiency, higher output, and better thermal performance than legacy radars. Its design supports ballistic missile defense and integrated air‑and‑missile defense missions, making it a strong candidate for the upcoming DDGX destroyers. However, Raytheon’s SPY‑6, backed by Mitsubishi Electric, remains a formidable rival, offering a parallel path for Japan’s next‑generation radar upgrades. The competition underscores a broader industrial race to embed advanced semiconductor and radar technologies within Japan’s maritime defense ecosystem.

Strategically, the contract dovetails with Japan’s FY2025 defense budget, which earmarked roughly ¥2 billion for technical studies on ASEV successors. As the ASEV vessels approach operational status in 2027‑28, the SPY‑7’s successful integration could set the standard for future retrofits of Atago‑ and Maya‑class destroyers. The partnership also signals to regional actors that Japan is rapidly advancing its layered missile‑defense architecture, reinforcing deterrence amid escalating security challenges in the Indo‑Pacific.