The SRIH(T72H) Relay sets a new benchmark for professional-grade relays with its core performance of "high safety + strong durability": a low-loss design with a contact resistance of ≤100mΩ, coupled with 10⁵ electrical cycles and 10⁷ mechanical cycles, ensures conduction stability under long-term high-frequency operation; a wide nominal voltage range of 5-36VDC and multiple power consumption options of 0.54W/0.72W/0.62W perfectly adapt to diverse circuit design scenarios; more importantly, the product has passed CQC safety certification, with a high insulation resistance of 100MΩ and a withstand voltage of 3800VAC forming a double safety barrier, fundamentally avoiding the risk of high-voltage breakdown; the PCB terminal design simplifies the installation process, and the entire process follows Songle's integrated quality control standards of "mold manufacturing, rubber and plastic processing, and finished product inspection," coupled with the scale guarantee of an annual production capacity of 200 million units, allowing the product to achieve the optimal balance between consistent quality and cost-effectiveness while being adaptable to various scenarios. Leveraging SRIH's global customer service network and professional after-sales support, the SRIH (T72H) has become a trusted choice for enterprise customers in high-voltage operating conditions, thanks to its verifiable performance data, authoritative certifications, and brand reputation.
Subminiature, standard PCB layout
UL insulation system: Class F
Ambient temperature: –40°℃~+85°℃/+105°℃
3.8KV3.8kV dielectric strength(between coil and contacts)
| Parameter | Specification |
| Contact arrangement | A/B/C |
| Contact rating | 7A/10A 250VAC/28VDC |
| Contact resistance | ≤100mΩ |
| Electrical endurance | 10⁵ / 10⁴ |
| Mechanical endurance | 10⁷ |
| Parameter | Specification |
| Nominal voltage | 5–36VDC |
| Power dissipation | 0.54W, 0.72W, 0.62W |
| Pick-up voltage(Max) | 75% of nominal voltage |
| Drop-out voltage(Min) | 10% of nominal voltage |
| Parameter | Specification |
| Ambient temperature | –40°C~+85°C/+105°C |
| Dielectric strength (Between coil and contacts) | 3800VAC (1min) |
| Dielectric strength (Between open contacts) | 1000VAC (1min) |
| Insulation resistance (500VDC) | 100MΩ |
| Wiring diagram (Bottom view) |
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| Installation hole drawing (Bottom view) | |
| Termination | P.C.B. |
| Weight | 16g |
| Safety approval | CQC |
Address
CW7, Area A, Zhejiang Yuandong Industrial City, Yuyao City, Zhejiang Province, China
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