Standard Circular Connectors

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RM Miniature Circular Connectors

Hirose RM Miniature Circular Connectors are compact, rugged, and excellent in mechanical and electrical performance. Mechanically stable due to its rigid and simple construction, the RM Series is available in a variety of shell sizes. Hirose RM Miniature Circular Connectors meet the stringent demands of communication and electronic equipment.

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Types of Standard Circular Connectors

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Part #

Standard Circular Contacts Contact F 1 POS Crim ST 1Terminal 1Port

RM-SC-112
Hirose Connector
1: ¥94.7
1,295In Stock

Mfr. Part #
RM-SC-112

Mouser Part #
798-RM-SC-112

Hirose Connector

Standard Circular Contacts Contact F 1 POS Crim ST 1Terminal 1Port

Datasheet

1,295In Stock

¥94.7

¥80.6

¥71.9

¥68.3

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Min.: 1
Mult.: 1

Contacts

Socket (Female)

Crimp

5 A

Standard Circular Connector ROUND MINI CBL BUSHING BAYONET LK

RM12BPG-B(71)
Hirose Connector
1: ¥443.5
164In Stock

Mfr. Part #
RM12BPG-B(71)

Mouser Part #
798-RM12BPG-B(71)

Hirose Connector

Standard Circular Connector ROUND MINI CBL BUSHING BAYONET LK

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Datasheet

164In Stock

¥443.5

¥377

¥337.2

¥318.9

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Min.: 1
Mult.: 1

Accessories

Standard Circular Connector ROUND MINI CAP BAYONET LK

RM12BR-C(71)
Hirose Connector
1: ¥1,994.9
77In Stock

Mfr. Part #
RM12BR-C(71)

Mouser Part #
798-RM12BR-C(71)

Hirose Connector

Standard Circular Connector ROUND MINI CAP BAYONET LK

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Datasheet

77In Stock

¥1,994.9

¥1,614.5

¥1,536.4

¥1,440.1

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Min.: 1
Mult.: 1

Accessories

Standard Circular Connector

RM12BRB-6PH(81)
Hirose Connector
1: ¥1,667.6
20In Stock

Mfr. Part #
RM12BRB-6PH(81)

Mouser Part #
798-RM12BRB-6PH81

Hirose Connector

Standard Circular Connector

Datasheet

20In Stock

¥1,667.6

¥1,350.4

¥1,284

¥1,247.4

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Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector 4 POS CIRCULAR CONNECTOR

RM15QRD-4SA(81)
Hirose Connector
1: ¥2,632.7
44In Stock

Mfr. Part #
RM15QRD-4SA(81)

Mouser Part #
798-RM15QRD4SA81

Hirose Connector

Standard Circular Connector 4 POS CIRCULAR CONNECTOR

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Datasheet

44In Stock

¥2,632.7

¥2,131.1

¥2,129.4

¥1,971.6

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Min.: 1
Mult.: 1

Connectors

Socket (Female)

Solder

Standard Circular Connector

RM15TJD-10S(81)
Hirose Connector
1: ¥6,381.6
4In Stock

Mfr. Part #
RM15TJD-10S(81)

Mouser Part #
798-RM15TJD-10S81

Hirose Connector

Standard Circular Connector

Datasheet

4In Stock

¥6,381.6

¥5,059.4

¥4,783.7

¥4,602.6

¥4,581

Min.: 1
Mult.: 1

Standard Circular Connector

RM21TP-15S(81)
Hirose Connector
1: ¥9,238.5
8In Stock

Mfr. Part #
RM21TP-15S(81)

Mouser Part #
798-RM21TP-15S81

Hirose Connector

Standard Circular Connector

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Datasheet

8In Stock

¥9,238.5

¥7,851.5

¥7,266.9

¥7,009.4

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Min.: 1
Mult.: 1

Connectors

Socket (Female)

Solder

Standard Circular Connector

RM21TP-20S(81)
Hirose Connector
1: ¥10,107.2
3In Stock

Mfr. Part #
RM21TP-20S(81)

Mouser Part #
798-RM21TP-20S81

Hirose Connector

Standard Circular Connector

Learn More

Datasheet

3In Stock

¥10,107.2

¥8,590.7

¥7,949.5

¥7,668.8

¥7,303.4

Min.: 1
Mult.: 1

Connectors

Socket (Female)

5 A

Standard Circular Connector

RM21TR-20S(81)
Hirose Connector
1: ¥8,218.6
25In Stock

Mfr. Part #
RM21TR-20S(81)

Mouser Part #
798-RM21TR-20S81

Hirose Connector

Standard Circular Connector

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Datasheet

25In Stock

¥8,218.6

¥7,220.4

¥6,863.3

¥6,235.4

View

Min.: 1
Mult.: 1

Connectors

Socket (Female)

5 A

Standard Circular Connector

RM12BRD-4S(81)
Hirose Connector
1: ¥2,008.1
2,738On Order
New At Mouser

Mfr. Part #
RM12BRD-4S(81)

Mouser Part #
798-RM12BRD-4S81

New At Mouser

Hirose Connector

Standard Circular Connector

Datasheet

2,738On Order

¥2,008.1

¥1,579.6

¥1,531.4

¥1,480

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Min.: 1
Mult.: 1

Solder Cup

Standard Circular Connector 6 POS RECPTL

RM12BRB-6S(81)
Hirose Connector
1: ¥4,572.7
80Expected 11/5/2026

Mfr. Part #
RM12BRB-6S(81)

Mouser Part #
798-RM12BRB-6S(81)

Hirose Connector

Standard Circular Connector 6 POS RECPTL

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Datasheet

80Expected 11/5/2026

¥4,572.7

¥3,700.7

¥3,523

¥3,423.3

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Min.: 1
Mult.: 1

Receptacles

Socket (Female)

Solder

5 A

Standard Circular Connector

RM12BRD-5S(81)
Hirose Connector
1: ¥1,920.1
588On Order

Mfr. Part #
RM12BRD-5S(81)

Mouser Part #
798-RM12BRD-5S81

Hirose Connector

Standard Circular Connector

Datasheet

588On Order

¥1,920.1

¥1,554.7

¥1,478.3

¥1,436.8

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15TRH-8PH(81)
Hirose Connector
1: ¥2,632.7
320Expected 9/30/2026

Mfr. Part #
RM15TRH-8PH(81)

Mouser Part #
798-RM15TRH-8PH81

Hirose Connector

Standard Circular Connector

Datasheet

320Expected 9/30/2026

¥2,632.7

¥2,131.1

¥2,028.1

¥1,971.6

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM12BRB-7S(81)
Hirose Connector
1: ¥1,953.3
53Expected 12/24/2026

Mfr. Part #
RM12BRB-7S(81)

Mouser Part #
798-RM12BRB-7S81

Hirose Connector

Standard Circular Connector

Datasheet

53Expected 12/24/2026

¥1,953.3

¥1,528.1

¥1,491.6

¥1,438.4

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Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM15WTPZ-10P(81)
Hirose Connector
1: ¥4,713.9
11Expected 11/5/2026

Mfr. Part #
RM15WTPZ-10P(81)

Mouser Part #
798-RM15WTPZ-10P81

Hirose Connector

Standard Circular Connector

Datasheet

11Expected 11/5/2026

¥4,713.9

¥4,091

¥3,878.4

¥3,730.6

¥3,679.1

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-10S(81)
Hirose Connector
1: ¥4,836.8
11Expected 11/5/2026

Mfr. Part #
RM15WTPZ-10S(81)

Mouser Part #
798-RM15WTPZ-10S81

Hirose Connector

Standard Circular Connector

Datasheet

11Expected 11/5/2026

¥4,836.8

¥4,601

¥4,458.1

¥4,099.3

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM12BRB-5PH(81)
Hirose Connector
1: ¥1,778.9
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
RM12BRB-5PH(81)

Mouser Part #
798-RM12BRB-5PH81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥1,778.9

¥1,350.4

¥1,333.8

¥1,320.5

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM12BRB-7PH(81)
Hirose Connector
1: ¥1,778.9
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
RM12BRB-7PH(81)

Mouser Part #
798-RM12BRB-7PH81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥1,778.9

¥1,350.4

¥1,333.8

¥1,320.5

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM15QPS-10PH(81)
Hirose Connector
1: ¥5,632.5
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
RM15QPS-10PH(81)

Mouser Part #
798-RM15QPS-10PH81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 10 Weeks

¥5,632.5

¥4,830.2

¥4,687.3

¥4,532.9

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15QRD-10S(81)
Hirose Connector
1: ¥3,493.1
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
RM15QRD-10S(81)

Mouser Part #
798-RM15QRD-10S81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 10 Weeks

¥3,493.1

¥2,651

¥2,649.3

¥2,647.6

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15TP-10S(81)
Hirose Connector
1: ¥6,198.9
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
RM15TP-10S(81)

Mouser Part #
798-RM15TP-10S81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥6,198.9

¥5,444.8

¥5,282

¥5,150.8

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-4P(81)
Hirose Connector
1: ¥4,574.4
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
RM15WTPZ-4P(81)

Mouser Part #
798-RM15WTPZ-4P81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥4,574.4

¥4,390

¥4,288.7

¥4,062.8

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-4P(82)
Hirose Connector
1: ¥5,753.7
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
RM15WTPZ-4P(82)

Mouser Part #
798-RM15WTPZ-4P82

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 9 Weeks

¥5,753.7

¥4,644.2

¥4,468.1

¥4,366.8

View

Min.: 1
Mult.: 1

Standard Circular Contacts Contact M 1 POS Crim ST 1Terminal 1Port

RM-PC-122
Hirose Connector
1: ¥94.7
Non-Stocked

Mfr. Part #
RM-PC-122

Mouser Part #
798-RM-PC-122

Hirose Connector

Standard Circular Contacts Contact M 1 POS Crim ST 1Terminal 1Port

Datasheet

Non-Stocked

¥94.7

¥80.6

¥71.9

¥63

View

Min.: 1
Mult.: 1

Contacts

Pin (Male)

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT LOOSE PC

RM-PC-212
Hirose Connector
8,000: ¥37.2
Non-Stocked

Mfr. Part #
RM-PC-212

Mouser Part #
798-RM-PC-212

Hirose Connector

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT LOOSE PC

Learn More

Datasheet

Non-Stocked

Reel

¥37.2

Min.: 8,000
Mult.: 8,000

: 8,000