
RPKM
analog of РПКМ, СНП336, СНП337 (rectangular low-frequency)
RPKM (A1-CONNECT) — analog of РПКМ, СНП336, СНП337 (RPKM, SNP336, SNP337), rectangular low-frequency connectors (combination LF + RF contacts), plug-in mating, off-board wire termination (solder): single 6, 26, 32, 38, 45, 57, 67 contacts; dual — top/bottom combinations from 6/6 (12 contacts) to 67/67 (134 contacts), 27 variants in total; h…
| Operating temperature | −60…+100 °C |
|---|---|
| Insulation resistance | 1000 MΩ min |
| Vibration | 5…2500 Hz, 150 m/s² |
| Shock | 5000 m/s² (single); 1500 m/s² (repetitive) |
| Operating current per contact | Ø1.0 mm — 4 A; Ø1.5 mm — 8 A |
| Contact resistance | Ø1.0 — 5 mΩ max; Ø1.5 — 2.5 mΩ max; Ø0.6 (RF) — 10 mΩ max; housing-to-housing — 10 mΩ max |
| Test voltage | 500…2900 V depending on the arrangement and contact number |
| Durability | 500 mating cycles; operating life 1000 h min |
| Storage life | 12 years |
| Specification (as claimed) | АВО.364.040ТУ |
| Contact plating | silver (CFKM1, CFKM3), gold (CFKM2, CFKM4); housing anodized or nickel-plated (N) |
| Chinese series designation | CFKM |
Interchangeable / cross-reference series: RPKM (Отечественные изготовители), SNP336 (Исеть), SNP337 (Исеть)
About the series
What it is
The A1-CONNECT RPKM series is an analog of the РПКМ (RPKM), СНП336 (SNP336), СНП337 (SNP337) series (rectangular low-frequency connectors (combination LF + RF contacts), plug-in mating, off-board wire termination (solder)). Single 6, 26, 32, 38, 45, 57, 67 contacts; dual — top/bottom combinations from 6/6 (12 contacts) to 67/67 (134 contacts), 27 variants in total; hoods CFKM-WF01…WF10 of 86 and 146 mm length. Manufacturer's versions: CFKM1, CFKM2, CFKM3, CFKM4; CFKM1 / CFKM2 (single, from the CFKM1–CFKM4 range); CFKM3 / CFKM4 (dual, from the CFKM1–CFKM4 range).
Compatibility claims
The manufacturer claims that CFKM1–CFKM4 are interchangeable and intermateable with the РПКМ1–РПКМ4: CFKM1/CFKM2 — single, CFKM3/CFKM4 — dual (top/bottom); CFKM1 and CFKM3 contacts are silver-plated, CFKM2 and CFKM4 gold-plated; АВО.364.040ТУ is given as the specification; the part number follows the same scheme as РПКМ, with its own letter correspondence table (Ш→J, Г→K).
The manufacturer does not mention СНП336 directly: the analog's manufacturer claims interchangeability and intermateability of the CFKM1–CFKM4 series with РПКМ1–РПКМ4. Since СНП336 is, according to catalogs, interchangeable and intermateable with РПКМ1/РПКМ2, the single CFKM1 (silver) and CFKM2 (gold) are an analog by footprint and mating; the contact range (26, 38, 45, 57, 67), contact diameters 1.0/1.5 mm and part numbering system match.
The manufacturer does not mention СНП337 directly: the analog's manufacturer claims interchangeability and intermateability of CFKM1–CFKM4 with РПКМ1–РПКМ4. Since СНП337 is, according to catalogs, interchangeable and intermateable with the dual РПКМ3/РПКМ4, CFKM3 (silver) and CFKM4 (gold) are the analog by footprint; the manufacturer's website shows a sample CFKM3-26/26KZ — a 26/26 dual receptacle.
Where it is used
The same applications as РПКМ, СНП336, СНП337: inter-unit and cable interconnections of equipment in industrial automation, instrumentation, transportation, power engineering and telecommunications — within the operating conditions listed in the specifications.
What it replaces and what to check
Replacement for РПКМ, СНП336, СНП337 per the cross-reference table of the analog's manufacturer. Before replacing, verify the 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.
CFKM3-67/32 JTN: RPKM — series; 1 (2) — single, silver (gold), 3 (4) — dual, silver (gold); 67/32 — number of contacts in the top/bottom arrangement; J — pin contact (Ш), K — socket contact (Г); T — plug, Z — receptacle; no letter — anodized housing, N — nickel-plated housing; the hood is chosen from the CFKM-WF01…WF10 list; the original notation of the same item is РПКМ3-67/32Ш1(-0/1)-В
How to select
Specify the part number of the item being replaced (РПКМ, СНП336, СНП337) or the number of contacts, current, coupling type and operating conditions (temperature, IP rating) — we will select the suitable RPKM version; send your request via BOM quote or cross-reference finder.
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 RPKM replace РПКМ, СНП336, СНП337?
The manufacturer claims that CFKM1–CFKM4 are interchangeable and intermateable with the РПКМ1–РПКМ4: CFKM1/CFKM2 — single, CFKM3/CFKM4 — dual (top/bottom); CFKM1 and CFKM3 contacts are silver-plated, CFKM2 and CFKM4 gold-plated; АВО.364.040ТУ is given as the specification; the part number follows the same scheme as РПКМ, with its own letter correspondence table (Ш→J, Г→K).
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 samples be obtained?
Yes, samples from 1 piece to verify mating and footprint; volume supply is per your BOM.
