SNO49
equivalent of СНО49 (rectangular low-frequency)
SNO49 (A1-CONNECT) — equivalent of СНО49, rectangular low-frequency, plug-in (blade) mating, internal mounting (single; the dual version is СНО50): SNO49: 26, 38, 45, 57, 67 contacts, housing 43×34; SNO50: 52, 64, 71, 76, 83, 90, 93, 95, 102, 105, 112, 114, 124, 134 contacts, housing 60×43.
| Operating temperature | −60…+155 °C |
|---|---|
| Sinusoidal vibration | 1–5000 Hz, 140 m/s² (as stated on the manufacturer's page) |
| Mechanical shock | 5000 m/s² (single), 1500 m/s² (repeated) |
| Operating voltage | 400 V; 700 V |
| Current per single contact | 11 A (Ø1.0), 20 A (Ø1.5) |
| Contact resistance | Ø1.0 — 5 mΩ max; Ø1.5 — 2.5 mΩ max |
| Insulation resistance | 5000 MΩ min |
| Service life | 500 mating cycles, 1000 h |
| Shelf life | 15 years |
| Technical specifications | ГЕО.364.246ТУ (per the manufacturer's page) |
| Contact termination | crimp, inserted into the insulator with a tool |
| Chinese series designation | CHO49 |
Interchangeable / cross-reference series: SNO49 (Исеть)
About the series
What it is
The A1-CONNECT SNO49 series is an equivalent of the СНО49 series (rectangular low-frequency, plug-in (blade) mating, internal mounting (single; the dual version is СНО50)). SNO49: 26, 38, 45, 57, 67 contacts, housing 43×34; SNO50: 52, 64, 71, 76, 83, 90, 93, 95, 102, 105, 112, 114, 124, 134 contacts, housing 60×43. Manufacturer's versions: SNO49 (shared page for the SNO49/SNO50 series).
Stated compatibility
The manufacturer explicitly states that SNO49 (single) and SNO50 (dual) are interchangeable and intermateable with СНО49 and СНО50 connectors; describes them as an improved design based on РПКМ1–4 (RPKM1–4) with crimp contacts that are inserted into the insulator with an insertion tool; and refers to the same ГЕО.364.246 technical specifications.
Where it is used
The same applications as СНО49: inter-unit and cable connections in equipment for industrial automation, instrumentation, transportation, power engineering and telecommunications — within the operating conditions listed in the specifications.
What it replaces and what to check
Replaces СНО49 per the equivalent manufacturer's cross-reference table. Before replacement, verify the mounting footprint, contact arrangement, mating part (within the same system), contact plating and temperature range against the drawings of both series; samples are available from 1 piece.
SNO49(50)-26(38,45,57,67)-43x34(60x43)-B(P)-6(7)-a(b)-B — mirrors the original designation: CHO = СНО; 49 single / 50 dual; number of contacts; housing size; B — plug (pins) / P — receptacle (sockets); 6 — without hood / 7 — with hood; a/b — insulator combination for dual versions (a: 26+57, b: 45+38); B — all-climate version.
How to select
Provide the part number of the item being replaced (СНО49) or the number of contacts, current, coupling type and operating conditions (temperature, IP rating) — we will select the appropriate SNO49 version; send your request via BOM quote or cross-reference search.
Part numbers
Part numbers of this series are configured to order — send the required configuration through the quotation form.
Questions and answers
How does A1-CONNECT SNO49 replace СНО49?
The manufacturer explicitly states that SNO49 (single) and SNO50 (dual) are interchangeable and intermateable with СНО49 and СНО50 connectors; describes them as an improved design based on РПКМ1–4 (RPKM1–4) with crimp contacts that are inserted into the insulator with an insertion tool; and refers to the same ГЕО.364.246 technical specifications.
What parameters are needed for selection?
The part number of the item being replaced, or the number of contacts, current and voltage per contact, coupling type, temperature range and IP rating, side (plug or receptacle) and termination method.
Can I get samples?
Yes, samples from 1 piece to verify mating and the mounting footprint; volume supply is per your bill of materials.