ONTS-BM
equivalent of ОНЦ-БМ-1(2) (circular microminiature low-frequency)
ONTS-BM (A1-CONNECT) — equivalent of ОНЦ-БМ-1(2), circular microminiature low-frequency, bayonet coupling, internal mounting; hermetic panel-mount plug: Shell sizes 10, 12, 14, 18, 22 and 27; inserts 10/10, 19/12, 30/14, 50/18, 76/22 and 102/27 with Ø0.6 mm contacts.
| Coupling type | bayonet, five keys |
|---|---|
| Shell sizes (nominal) | 10, 12, 14, 18, 22, 27 |
| Number of contacts / shell size | 10/10, 19/12, 30/14, 50/18, 76/22, 102/27 |
| Contact diameter | 0.6 mm |
| Current per contact | 1.8 / 1.7 / 1.4 / 1.0 / 0.8 / 0.7 A for 10 / 19 / 30 / 50 / 76 / 102 contacts |
| Operating voltage | up to 250 V; DC, AC up to 3 MHz and pulsed current |
| Contact resistance | 15 mΩ max |
| Insulation resistance | 1000 MΩ min under normal conditions |
| Operating temperature | −60…+85 °C |
| Vibration | 1–5000 Hz, 20 g |
| Shock | single 1000 g, repeated 100 g |
| Service life | 250 mating cycles |
| Operating life | 5000 h |
| Contact plating | silver (OHS-BM-1) or gold (OHS-BM-2) |
Interchangeable / cross-reference series: ONTS-BM-1(2) (ELEKON)
Specifications
| Coupling type | bayonet, five keys |
|---|---|
| Shell sizes (nominal) | 10, 12, 14, 18, 22, 27 |
| Number of contacts / shell size | 10/10, 19/12, 30/14, 50/18, 76/22, 102/27 |
| Contact diameter | 0.6 mm |
| Current per contact | 1.8 / 1.7 / 1.4 / 1.0 / 0.8 / 0.7 A for 10 / 19 / 30 / 50 / 76 / 102 contacts |
| Operating voltage | up to 250 V; DC, AC up to 3 MHz and pulsed current |
| Contact resistance | 15 mΩ max |
| Insulation resistance | 1000 MΩ min under normal conditions |
| Operating temperature | −60…+85 °C |
| Vibration | 1–5000 Hz, 20 g |
| Shock | single 1000 g, repeated 100 g |
| Service life | 250 mating cycles |
| Operating life | 5000 h |
| Contact plating | silver (OHS-BM-1) or gold (OHS-BM-2) |
| Versions | cable receptacle (P) and hermetic panel-mount plug (B); without backshell or with straight unshielded backshell; key positions 1, 2, 3 |
| Panel-part flange | square 20, 21, 24, 27, 31, 36 mm; hole spacing 11.8; 13.2; 15; 18; 21.5; 26 mm; holes Ø2.2 mm (shell sizes 10–18), Ø2.7 and 3.2 mm (shell sizes 22 and 27) |
| Cable part | backshell thread M10×0.75…M27×0.75, length 30…36 mm |
| Chinese series designation | OHS-BM |
About the series
What it is
The A1-CONNECT ONTS-BM series is an equivalent of the ОНЦ-БМ-1(2) series (circular microminiature low-frequency, bayonet coupling, internal mounting; hermetic panel-mount plug). Shell sizes 10, 12, 14, 18, 22 and 27; inserts 10/10, 19/12, 30/14, 50/18, 76/22 and 102/27 with Ø0.6 mm contacts. Manufacturer's versions: ONTS-BM.
Stated compatibility
The equivalent's designation repeats the original character by character: ОНЦ-БМ-1-10/10-Р12-1-В corresponds to OHS-BM-1-10/10-P12-1-B. The 10/10, 19/12, 30/14, 50/18, 76/22 and 102/27 inserts with Ø0.6 mm contacts, the current ratings per contact and the mounting dimensions of the panel-part flanges match the ОНЦ-БМ data sheet. Differences: the operating voltage is stated as up to 250 V, operating life is 5000 h, and key positions are 1, 2 and 3, so for the 76- and 102-contact versions the key position must be verified when ordering.
Where it is used
The same applications as ОНЦ-БМ-1(2): 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 ОНЦ-БМ-1(2) 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.
OHS-BM-1-10/10-P12-1-B: ONTS-BM — series; 1 — silver-plated contacts (2 — gold); 10 — number of contacts; 10 — nominal shell size; P — receptacle (B — plug); 12 — with straight unshielded backshell (1 — without backshell); 1 — key position (1, 2, 3); B — all-climate version.
How to select
Provide the part number of the item being replaced (ОНЦ-БМ-1(2)) or the number of contacts, current, coupling type and operating conditions (temperature, IP rating) — we will select the appropriate ONTS-BM 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 ONTS-BM replace ОНЦ-БМ-1(2)?
The equivalent's designation repeats the original character by character: ОНЦ-БМ-1-10/10-Р12-1-В corresponds to OHS-BM-1-10/10-P12-1-B. The 10/10, 19/12, 30/14, 50/18, 76/22 and 102/27 inserts with Ø0.6 mm contacts, the current ratings per contact and the mounting dimensions of the panel-part flanges match the ОНЦ-БМ data sheet. Differences: the operating voltage is stated as up to 250 V, operating life is 5000 h, and key positions are 1, 2 and 3, so for the 76- and 102-contact versions the key position must be verified when ordering.
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.