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 Connector

RM12BRB-6PH(81)
Hirose Connector
1: $10.04
20In Stock

Mfr. Part No.
RM12BRB-6PH(81)

Mouser Part No
798-RM12BRB-6PH81

Hirose Connector

Standard Circular Connector

Datasheet

20In Stock

$10.04

$8.13

$7.73

$7.51

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector 4 POS CIRCULAR CONNECTOR

RM15QRD-4SA(81)
Hirose Connector
1: $15.85
44In Stock

Mfr. Part No.
RM15QRD-4SA(81)

Mouser Part No
798-RM15QRD4SA81

Hirose Connector

Standard Circular Connector 4 POS CIRCULAR CONNECTOR

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Datasheet

44In Stock

$15.85

$12.83

$12.82

$11.87

View

Min.: 1
Mult.: 1

Connectors

Socket (Female)

Solder

Standard Circular Connector

RM15TJD-10S(81)
Hirose Connector
1: $38.42
4In Stock

Mfr. Part No.
RM15TJD-10S(81)

Mouser Part No
798-RM15TJD-10S81

Hirose Connector

Standard Circular Connector

Datasheet

4In Stock

$38.42

$30.08

$29.75

$29.00

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15TRH-4SA(81)
Hirose Connector
1: $17.33
80In Stock
380On Order

Mfr. Part No.
RM15TRH-4SA(81)

Mouser Part No
798-RM15TRH-4SA81

Hirose Connector

Standard Circular Connector

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Datasheet

80In Stock

380On Order

$17.33

$15.02

$14.23

$14.02

View

Min.: 1
Mult.: 1

Connectors

Socket (Female)

Solder

10 A

Standard Circular Connector

RM21TP-15S(81)
Hirose Connector
1: $55.62
8In Stock

Mfr. Part No.
RM21TP-15S(81)

Mouser Part No
798-RM21TP-15S81

Hirose Connector

Standard Circular Connector

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Datasheet

8In Stock

$55.62

$47.27

$43.75

$42.20

View

Min.: 1
Mult.: 1

Connectors

Socket (Female)

Solder

Standard Circular Connector

RM21TP-20S(81)
Hirose Connector
1: $60.85
3In Stock

Mfr. Part No.
RM21TP-20S(81)

Mouser Part No
798-RM21TP-20S81

Hirose Connector

Standard Circular Connector

Learn More

Datasheet

3In Stock

$60.85

$51.72

$47.86

$46.17

$43.97

Min.: 1
Mult.: 1

Connectors

Socket (Female)

5 A

Standard Circular Connector

RM21TR-20S(81)
Hirose Connector
1: $44.14
25In Stock

Mfr. Part No.
RM21TR-20S(81)

Mouser Part No
798-RM21TR-20S81

Hirose Connector

Standard Circular Connector

Learn More

Datasheet

25In Stock

$44.14

$43.45

$41.31

$33.49

$32.20

Min.: 1
Mult.: 1

Connectors

Socket (Female)

5 A

Standard Circular Connector

RM12BRD-4S(81)
Hirose Connector
1: $10.32
818Expected 16/09/2026
New Product

Mfr. Part No.
RM12BRD-4S(81)

Mouser Part No
798-RM12BRD-4S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

818Expected 16/09/2026

$10.32

$8.35

$7.94

$7.72

$7.69

Min.: 1
Mult.: 1

Solder Cup

Standard Circular Connector

RM15TPD-10P(81)
Hirose Connector
1: $49.48
60Expected 03/09/2026

Mfr. Part No.
RM15TPD-10P(81)

Mouser Part No
798-RM15TPD-10P81

Hirose Connector

Standard Circular Connector

Datasheet

60Expected 03/09/2026

$49.48

$42.05

$38.92

$37.72

Min.: 1
Mult.: 1

Standard Circular Connector

RM15TRH-8PH(81)
Hirose Connector
1: $14.15
320Expected 08/12/2026

Mfr. Part No.
RM15TRH-8PH(81)

Mouser Part No
798-RM15TRH-8PH81

Hirose Connector

Standard Circular Connector

Datasheet

320Expected 08/12/2026

$14.15

$11.45

$10.90

$10.86

Min.: 1
Mult.: 1

Standard Circular Connector

RM12BRB-7S(81)
Hirose Connector
1: $11.75
53Expected 12/11/2026

Mfr. Part No.
RM12BRB-7S(81)

Mouser Part No
798-RM12BRB-7S81

Hirose Connector

Standard Circular Connector

Datasheet

53Expected 12/11/2026

$11.75

$9.22

$9.21

$9.16

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM15TRD-12S(81)
Hirose Connector
1: $16.99
109Expected 03/09/2026

Mfr. Part No.
RM15TRD-12S(81)

Mouser Part No
798-RM15TRD-12S81

Hirose Connector

Standard Circular Connector

109Expected 03/09/2026

$16.99

$13.46

$13.40

$13.31

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-2S(81)
Hirose Connector
1: $29.33
29In Stock

Mfr. Part No.
RM15WTPZ-2S(81)

Mouser Part No
798-RM15WTPZ-2S81

Hirose Connector

Standard Circular Connector

Datasheet

29In Stock

$29.33

$27.59

$26.98

$25.25

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM12BRB-5PH(81)
Hirose Connector
1: $10.71
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RM12BRB-5PH(81)

Mouser Part No
798-RM12BRB-5PH81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

$10.71

$8.13

$8.12

$8.08

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM12BRB-7PH(81)
Hirose Connector
1: $10.71
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RM12BRB-7PH(81)

Mouser Part No
798-RM12BRB-7PH81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

$10.71

$8.13

$8.12

$8.08

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM15QPS-10PH(81)
Hirose Connector
1: $37.03
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
RM15QPS-10PH(81)

Mouser Part No
798-RM15QPS-10PH81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 10 Weeks

$37.03

$27.27

$26.58

Min.: 1
Mult.: 1

Standard Circular Connector

RM15QRD-10S(81)
Hirose Connector
1: $20.71
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
RM15QRD-10S(81)

Mouser Part No
798-RM15QRD-10S81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 10 Weeks

$20.71

$13.95

$13.94

Quote

Min.: 1
Mult.: 1

Standard Circular Connector

RM15TP-10S(81)
Hirose Connector
1: $41.08
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RM15TP-10S(81)

Mouser Part No
798-RM15TP-10S81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

$41.08

$32.78

$32.38

$31.76

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-4P(81)
Hirose Connector
1: $25.74
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RM15WTPZ-4P(81)

Mouser Part No
798-RM15WTPZ-4P81

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 12 Weeks

$25.74

$25.71

$24.16

$23.76

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-4P(82)
Hirose Connector
1: $34.64
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
RM15WTPZ-4P(82)

Mouser Part No
798-RM15WTPZ-4P82

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 9 Weeks

$34.64

$29.44

$26.80

$26.79

View

Min.: 1
Mult.: 1

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

RM-PC-122
Hirose Connector
1: $0.57
Non-Stocked

Mfr. Part No.
RM-PC-122

Mouser Part No
798-RM-PC-122

Hirose Connector

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

Datasheet

Non-Stocked

$0.57

$0.485

$0.433

$0.411

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: $0.224
Non-Stocked

Mfr. Part No.
RM-PC-212

Mouser Part No
798-RM-PC-212

Hirose Connector

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT LOOSE PC

Learn More

Datasheet

Non-Stocked

Reel

$0.224

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

: 8,000

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

RM-PC-222
Hirose Connector
8,000: $0.224
Non-Stocked

Mfr. Part No.
RM-PC-222

Mouser Part No
798-RM-PC-222

Hirose Connector

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

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Datasheet

Non-Stocked

Reel

$0.224

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

: 8,000

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

RM-SC-122
Hirose Connector
1: $0.66
N/A

Mfr. Part No.
RM-SC-122

Mouser Part No
798-RM-SC-122

Hirose Connector

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

Datasheet

N/A

$0.66

$0.564

$0.509

$0.473

View

Min.: 1
Mult.: 1

Contacts

Socket (Female)

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

RM-SC-212
Hirose Connector
1: $0.49
Non-Stocked

Mfr. Part No.
RM-SC-212

Mouser Part No
798-RM-SC-212

Hirose Connector

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.49

$0.423

$0.387

$0.349

View

Reel

$0.224

Min.: 1
Mult.: 1

: 8,000

RM Miniature Circular Connectors

Types of Standard Circular Connectors

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