- Pulse module 2a system
- Full compliance with ISO 7637-2.2004, ISO 7637-2.2011, ISO 7637-3.2007, ISO 16750-2.2010
- Load dump suppressor for pulse 5b
- Compact modular cabinet
- Output terminals provided at a height of 50mm above the floor level as specified in the ISO 7637-2 standard
- Two types of CDNs available (60 V/50 A and 60 V/100 A)
- Dedicated software for condition setting and tester control
- JASO D001-94 pulse unit offered as an optional module
KES7721
Pulse module 2a system
The Kikusui KES7721 is a specialized Pulse 5a/5b module within the KES7700 series, engineered to provide enhanced high-voltage surge capability for automotive EMC testing. Unlike standard modules, the KES7721 offers precise control over pulse parameters, including rise time, pulse width, and repetition intervals, allowing for accurate simulation of severe transient events such as load-dumps, voltage spikes, and bursts. This module is ideal for evaluating electronic devices that require stricter transient immunity validation, ensuring compliance with ISO 7637-2 and ISO 16750-2 standards. Its integration with KES7700-series test systems provides flexible and reliable testing, making it suitable for both R&D and production line environments where high reproducibility and waveform fidelity are critical.
Features
Key capabilities and advantages
Specification
Technical specifications and parameters
| Module type | Plug-in type (Pulse 2a) |
| Standards compliance | ISO 7637-2 (2004 & 2011), ISO 7637-3 (2007), ISO 16750-2 (2010) |
| Peak output voltage (Us) | ±20 V to ±150 V, adjustable in 0.1 V steps |
| Output impedance (Ri) selectable | 2 Ω, 4 Ω, 10 Ω |
| Rise time (tr) | 1 μs (±0 / –0.5 μs) |
| Pulse width (td) | 50 µs ±10 µs at no load ; 40 µs ±8 µs at 4 Ω load ; 12 µs ±2.4 µs at 2 Ω load |
| Repetition interval (t1) | 0.2 s to 99 s, adjustable in 0.1‑s steps |
| DC cut time (t2) | 1 ms to 100 ms, adjustable in 0.1‑ms steps |
| Surge delay time (t3) | < 100 µs |
| Output terminals | positioned 50 mm above floor level (standard requirement) |
| Dimensions | approx. 50 mm (W) × 260 mm (H) × 330 mm (D) |
| Weight | approx. 2.5 kg |
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