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 6 POS RECPTL

RM12BRB-6S(81)
Hirose Connector
1: $34.05
18In Stock

Mfr. Part #
RM12BRB-6S(81)

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

Hirose Connector

Standard Circular Connector 6 POS RECPTL

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Datasheet

18In Stock

$34.05

$27.57

$26.24

$25.50

View

Min.: 1
Mult.: 1

Receptacles

Socket (Female)

Solder

5 A

Standard Circular Connector CAP

RM15TR-C(31)
Hirose Connector
1: $15.13
176In Stock

Mfr. Part #
RM15TR-C(31)

Mouser Part #
798-RM15TR-C31

Hirose Connector

Standard Circular Connector CAP

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Datasheet

176In Stock

$15.13

$12.25

$10.21

$9.75

$9.28

Min.: 1
Mult.: 1

Accessories

Standard Circular Connector

RM21TP-15S(81)
Hirose Connector
1: $69.19
15In Stock

Mfr. Part #
RM21TP-15S(81)

Mouser Part #
798-RM21TP-15S81

Hirose Connector

Standard Circular Connector

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Datasheet

15In Stock

$69.19

$61.12

$54.41

$52.48

View

Min.: 1
Mult.: 1

Connectors

Socket (Female)

Solder

Standard Circular Connector

RM21TP-20S(81)
Hirose Connector
1: $75.72
6In Stock

Mfr. Part #
RM21TP-20S(81)

Mouser Part #
798-RM21TP-20S81

Hirose Connector

Standard Circular Connector

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Datasheet

6In Stock

$75.72

$64.08

$59.43

$57.44

View

Min.: 1
Mult.: 1

Connectors

Socket (Female)

5 A

Standard Circular Connector

RM12BPE-3PH81
Hirose Connector
1: $26.33
189In Stock
Factory Special Order

Mfr. Part #
RM12BPE-3PH81

Mouser Part #
798-RM12BPE-3PH81

Factory Special Order

Hirose Connector

Standard Circular Connector

Datasheet

189In Stock

$26.33

$22.83

$21.62

$21.31

View

Min.: 1
Mult.: 1

Plugs

Pin (Male)

Solder

5 A

Standard Circular Connector

RM15TPD-10S(81)
Hirose Connector
1: $57.24
87On Order
New Product

Mfr. Part #
RM15TPD-10S(81)

Mouser Part #
798-RM15TPD-10S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

87On Order

$57.24

$49.20

$47.20

$42.97

Min.: 1
Mult.: 1

Standard Circular Connector

RM12BJB-4S(81)
Hirose Connector
1: $22.72
40Expected 2026-02-27
New At Mouser

Mfr. Part #
RM12BJB-4S(81)

Mouser Part #
798-RM12BJB-4S81

New At Mouser

Hirose Connector

Standard Circular Connector

Datasheet

40Expected 2026-02-27

$22.72

$18.07

$18.06

$17.50

View

Min.: 1
Mult.: 1

Receptacles

Socket (Female)

Solder Cup

5 A

Standard Circular Connector

RM12BRB-7S(81)
Hirose Connector
1: $15.30
8Expected 2026-02-19
New Product

Mfr. Part #
RM12BRB-7S(81)

Mouser Part #
798-RM12BRB-7S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

8Expected 2026-02-19

$15.30

$13.00

$12.38

$12.20

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM12BRD-2S(81)
Hirose Connector
1: $14.80
40Expected 2026-02-27
New Product

Mfr. Part #
RM12BRD-2S(81)

Mouser Part #
798-RM12BRD-2S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

40Expected 2026-02-27

$14.80

$12.59

$11.98

$11.80

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-12S(81)
Hirose Connector
1: $40.38
30Expected 2026-03-18
New Product

Mfr. Part #
RM15WTPZ-12S(81)

Mouser Part #
798-RM15WTPZ-12S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

30Expected 2026-03-18

$40.38

$34.32

$33.45

$30.63

$29.45

Min.: 1
Mult.: 1

Standard Circular Connector

RM12BRD-7PH(81)
Hirose Connector
1: $13.11
60Expected 2026-02-27
New Product

Mfr. Part #
RM12BRD-7PH(81)

Mouser Part #
798-RM12BRD-7PH81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

60Expected 2026-02-27

$13.11

$10.99

$10.48

$10.32

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM15QPS-10PH(81)
Hirose Connector
1: $43.93
Non-Stocked Lead-Time 10 Weeks
New Product

Mfr. Part #
RM15QPS-10PH(81)

Mouser Part #
798-RM15QPS-10PH81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 10 Weeks

$43.93

$38.75

$34.95

$34.30

$33.00

Min.: 1
Mult.: 1

Standard Circular Connector

RM15QRD-10S(81)
Hirose Connector
1: $24.55
Non-Stocked Lead-Time 10 Weeks
New Product

Mfr. Part #
RM15QRD-10S(81)

Mouser Part #
798-RM15QRD-10S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 10 Weeks

$24.55

$21.70

$20.62

$20.20

View

Min.: 1
Mult.: 1

Standard Circular Connector

RM15WTPZ-10P(81)
Hirose Connector
1: $45.54
Non-Stocked Lead-Time 4 Weeks
New Product

Mfr. Part #
RM15WTPZ-10P(81)

Mouser Part #
798-RM15WTPZ-10P81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked Lead-Time 4 Weeks

$45.54

$38.72

$31.85

$31.76

Quote

Min.: 1
Mult.: 1

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

RM-PC-122
Hirose Connector
1: $0.713
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

$0.713

$0.60

$0.536

$0.468

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: $0.285
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

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Datasheet

Non-Stocked

Reel

$0.285

$0.273

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

Reel: 8,000

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

RM-PC-222
Hirose Connector
8,000: $0.285
Non-Stocked

Mfr. Part #
RM-PC-222

Mouser Part #
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

$0.285

$0.273

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

Reel: 8,000

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

RM-SC-122
Hirose Connector
1: $0.915
N/A

Mfr. Part #
RM-SC-122

Mouser Part #
798-RM-SC-122

Hirose Connector

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

Datasheet

N/A

$0.915

$0.778

$0.702

$0.649

View

Min.: 1
Mult.: 1

Contacts

Socket (Female)

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

RM-SC-212
Hirose Connector
8,000: $0.285
Non-Stocked

Mfr. Part #
RM-SC-212

Mouser Part #
798-RM-SC-212

Hirose Connector

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

Learn More

Datasheet

Non-Stocked

Reel

$0.285

$0.273

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

Reel: 8,000

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

RM-SC-222
Hirose Connector
8,000: $0.426
Non-Stocked

Mfr. Part #
RM-SC-222

Mouser Part #
798-RM-SC-222

Hirose Connector

Standard Circular Connector ROUND MINI CRIMP TYP ML CONT STRIP CONT

Learn More

Datasheet

Non-Stocked

Reel

$0.426

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

Reel: 8,000

Standard Circular Connector ROUND MINI SQUARE MNT FLANGE

RM12BR-F(71)
Hirose Connector
160: $2.96
Non-Stocked

Mfr. Part #
RM12BR-F(71)

Mouser Part #
798-RM12BR-F(71)

Hirose Connector

Standard Circular Connector ROUND MINI SQUARE MNT FLANGE

Learn More

Datasheet

Non-Stocked

$2.96

$2.91

Min.: 160
Mult.: 10

Accessories

Standard Circular Connector

RM12BRB-5PH(81)
Hirose Connector
1: $13.33
Non-Stocked
New Product

Mfr. Part #
RM12BRB-5PH(81)

Mouser Part #
798-RM12BRB-5PH81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked

$13.33

$11.33

$10.77

$10.62

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM12BRB-5S(81)
Hirose Connector
1: $14.04
Non-Stocked
New Product

Mfr. Part #
RM12BRB-5S(81)

Mouser Part #
798-RM12BRB-5S81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked

$14.04

$11.94

$11.36

$11.19

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM12BRB-7PH(81)
Hirose Connector
1: $13.33
Non-Stocked
New Product

Mfr. Part #
RM12BRB-7PH(81)

Mouser Part #
798-RM12BRB-7PH81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked

$13.33

$11.33

$10.77

$10.62

View

Min.: 1
Mult.: 1

Receptacles

Standard Circular Connector

RM12BRB-7SG(81)
Hirose Connector
1: $28.88
Non-Stocked
New Product

Mfr. Part #
RM12BRB-7SG(81)

Mouser Part #
798-RM12BRB-7SG81

New Product

Hirose Connector

Standard Circular Connector

Datasheet

Non-Stocked

$28.88

$25.34

$24.24

$24.04

View

Min.: 1
Mult.: 1

RM Miniature Circular Connectors

Types of Standard Circular Connectors

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