TE Connectivity SGI 1.25 User guide

Application Specification

1 of 22

*Trademark

TE Connectivity, TE connectivity (logo), and TE (logo) are trademarks. Other logos, product, and/or company names may be trademarks of their respective owners.

PRODUCT INFORMATION

1-800-522-6752

This controlled document is subject to change.

For latest revision and Regional Customer Service,

visit our website at www.te.com.

114-106497

13 DEC 23 Rev 5

NOTE

All numerical values are in metric units [with U.S. customary units in brackets]. Dimensions are in millimeters [and inches].

Unless otherwise specified, dimensions have a tolerance of ±0.13 [±.005] and angles have a tolerance of ±2°. Figures and

illustrations are for identification only and are not drawn to scale.

1. INTRODUCTION

This specification covers the requirements for application of Signal Grace Inertial (SGI) 1.25 & 1.50 connector

system includes SMT header assembly and plug assembly used in the wire-to-board interconnections, cap

assembly and plug assembly used in the wire-to-wire interconnections.

The SGI 1.25 connector system is available in 2 through 18 positions for single row, 20/22/30/40 positions for

dual row, and SGI 1.50 connector system is available in 2 through 12 positions for single row, 4 through 18

positions for dual row. Wire size ranges from 26 to 30 AWG for 1.25mm pitch connector, and 24 to 28 AWG for

1.50mm pitch connector.

When corresponding with TE Connectivity Personnel, use the terminology provided in this specification to

facilitate your inquiries for information. Basic terms and features of this product are provided in Figure 1.

SGI 1.25 Single Row

SGI 1.25 & 1.50 Connector System

Header Assembly

SGI 1.25 Single Row (5pos shown)

Plug Housing

SGI 1.25 Single Row (5pos shown)

Locking Latch

Mating Face

Wire Cavity

Cap Housing

SGI 1.25 Single Row (10pos shown)

Mating Face

PRELIMINARY

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SGI 1.50 Single Row

Receptacle Terminal

SGI 1.25 and 1.5 Sigle Row and Dual row

Row

Wire Barrel

Insulation Barrel

Header Assembly

SGI 1.5 Single Row (5pos shown)

Mating Face

Plug Housing

SGI 1.5 Single Row (5pos shown)

Mating Face

Locking Latch

Wire Cavity

Insulation Barrel

Wire Barrel

Tab Terminal

SGI 1.25 Sigle Row and Dual row Row

Insulation Barrel

Wire Barrel

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SGI 1.25 Dual Row

TPA (5pos shown)

For SGI 1.50 Single Row only

Header Assembly

SGI 1.25 Dual Row (20pos shown)

Plug Housing

SGI 1.25 Dual Row (20pos shown)

Mating Face

Locking Latch

Wire Cavity

Cap Housing

SGI 1.25 Dual Row (20pos shown)

Mating Face

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SGI 1.50 Dual Row

Figure 1 (Schematic Diagram Only)

Header Assembly

SGI 1.5 Dual Row (10pos shown)

Plug Housing

SGI 1.5 Dual Row (10pos shown)

Mating Face

Locking Latch

Wire Cavity

TPA

SGI 1.50 Dual Row (10pos shown)

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2. REFERENCE MATERIAL

2.1. Revision Summary

Revision to this application specification include:

Add SGI 1.25 Cap Housing single row 10P, dual row 20P, Tab contact

Update crimp parameter

Add PC board and header assembly placement information in 3.10,3.11.

2.2. Customer Assistance

Reference Product Base Part numbers are stated in Figure 2. Use of these numbers will identify the product

line and help you to obtain product and tooling information when visiting www.te.com or calling the number at

the bottom of page 1.

SGI 1.25 connector

(Single Row or Dual Row)

SGI 1.50 connector

(Single Row or Dual Row)

Product Type

Base PN

Product Type

Base PN

Single Row

Dual Row

Single Row

Dual Row

Header Assembly,

SMT, Right Angle

2360538

Header Assembly,

SMT, Right Angle

2360545

Header Assembly,

SMT, Vertical

2360540

2376974

2456589

Header Assembly,

SMT, Vertical

2360547

2427710

Plug Housing

2371404

2376950

2456588

Plug Housing

2382946

2426397

Receptacle

Terminal

2371403

2454997

2371403

2454997

Crimp Terminal

2371403

2454997

2371403

2454997

Cap Housing

2428107

2428108

Tab Terminal

2428106

TPA

2383410

2426398

Figure 2

2.3. Drawings

Customer drawings for product part numbers are available from www.te.com. Information contained in the

customer drawing takes priority.

2.4. Manuals

Manual 402-40 can be used as a guide to solder. This manual provides information on various flux types and

characteristics with the commercial designation, flux removal procedures, and a checklist for information on

soldering problems.

2.5. Specifications

Product Specification 108-106451, 108-160851 and Qualification Report 501-106475, 501-160511 provide

product performance and test results.

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2.6. Instructional Material

Instruction sheets (408-series) provide product assembly instructions or tooling setup and operation procedures

and customer manuals (409-series) provide machine setup and operating procedures. Instructional material

that pertain to this product are:

408-8040 Heavy Duty Miniature Quick-Change Applicators with Mechanical Feed System

408-9640 Crimp Quality Monitor (CQM) Applicators for Side-Feed and End-Feed Applications

408-10389 Ocean Side-Feed Applicators

3. REQUIREMENTS

3.1. Safety

Do not stack product shipping containers so high that the containers buckle or deform.

3.2. Storage

A. Ultraviolet Light

Prolonged exposure to ultraviolet light may deteriorate the chemical composition used in the product

material.

B. Shelf Life

The product should remain in the shipping containers until ready for use to prevent deformation to

components. The product should be used on a first in, first out basis to avoid storage contamination that

could adversely affect performance.

C. Reels

When using reeled contacts, store coil wound reels horizontally. When storing partial reeled contacts, the

end of the strip should be secured to the flange using a wire tie or similar method.

D. Chemical Exposure

Do not store product near any chemical listed below as they may cause stress corrosion cracking in the

material.

Alkalies Ammonia Citrates Phosphates Citrates Sulfur Compounds

Amines Carbonates Nitrites Sulfur Nitrites Tartrates

3.3. Wire Selection and Preparation

The contacts accept stranded wire sizes 24-30 AWG [0.205 –0.0507 mm2] with an insulation diameter range

given in Figure 3. The wire must be stripped to the dimension given in Figure 3.

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CAUTION

Care shall be taken during the stripping operation to ensure the conductor is not nicked, scraped, or cut.

CONTACT

WIRE

TYPE

PART NUMBER

WIRE SIZE (AWG)

[mm2]

INSULATION DIAMETER

STRIP LENGTH (±0.2)

SGI Receptacle Terminal

2371403-1

2454997-1

26-30

[0.128 –0.0507]

0.76 - 1.0

1.50

2371403-2

2454997-2

24-28

[0.205 –0.0804]

0.85 - 1.10

1.70

2371403-3

2454997-3

24-28

[0.205 –0.0804]

0.76 - 1.30

1.70

SGI Tab Terminal

2428106-1

26-30

[0.128 –0.0507]

0.76 - 1.0

1.50

Figure 3

3.4. Crimp Requirements

Contacts must be terminated according to the instructions packaged with the tooling.

A. Bellmouth

The rear bellmouth shall be evident and be within the dimensions given in Figure 4.

B. Cutoff Tab and Burr

The cutoff tab is the remaining portion of the carrier strip after the contact is cut from the strip. The cutoff tab

and burr shall not exceed the dimension given in Figure 4.

C. Wire Barrel Flash

Wire barrel flash is the formation that may appear on both sides of the wire barrel as the result of the crimping

process. The wire barrel flash shall not exceed the dimension given in Figure 4.

D. Wire Barrel Crimp

The crimp applied to the wire barrel portion of the contact is the most compressed area and is most critical in

ensuring optimum electrical and mechanical performance of the crimped contact. The crimp must be centered

on the closed wire barrel. The crimp must result in an “F” crimp where the wire barrel forms a closed seam with

no evidence of loose wire strands or wire strands visible in the seam. The crimp height and width must be

within the dimensions given in Figure 4.

E. Insulation Barrel Crimp

The crimp applied to the insulation barrel of the contact must result in an “F” crimp. The crimp height and width

must be within the dimensions provided in Figure 4. Slight scratch is acceptable on insulation crimp.

F. Effective Crimp Length

Effective crimp length shall be defined as that portion of the wire barrel, excluding the rear bellmouth, fully

formed by the crimping tool. Refer to Figure 4.

Strip Length (See Table)

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G. Wire Location

All conductors must be held firmly inside the wire barrel. No strands can be folded back over the wire

insulation. The wire insulation must be inside the insulation barrel but must not enter the wire barrel. The wire

insulation and conductors must be visible in the transition area between the wire barrel and insulation barrel.

See Figure 4.

H. Wire Brush

The conductors may extend beyond the wire barrel within the dimensions given in Figure 4.

I. Wire Barrel Seam

The wire barrel seam must be closed with no evidence of loose wire strands visible in the seam.

K. Twist and Roll

There should be no twist or roll of the wire barrel or mating portion of the crimped contact that would cause

overstress or impair usage. See Figure 4 for allowable limits.

NOTE

The effective crimp length depends on the crimping dies used and should not be measured for inspection purposes.

Wire Barrel Seam Closed with

No Visible or Loose Wire Strands

Wire Insulation and Conductors Both Visible in Transition

Area (Between Wire Barrel and Insulation Barrel)

No Wire Insulation Visible

in Insulation Barrel Seam

Insulation Barrel

Width (See Table)

Wire Brush (Conductors Extend

Beyond Wire Barrel) (See Table)

Rear Bellmouth

(See Table)

Contact Spring

is Not Deformed

Effective Crimp Length (Ref)

See Detail A

1.0 max. for Box Area

1.35 +/-0.05

Gap Should Not

Change After Crimp

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3° Max

Avoid Twist and Roll

Detail A

Section X-X

0.13 Max Burr

0.25mm Max

Cutoff Tab

Wire Barrel Crimp

Width (See Table)

Wire Barrel Crimp

Height

(See Table)

0.20 Max Wire Barrel Flash

1.0 max. for Box Area

Contact beam should not

change after crimp

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WIRE SIZE

CONTACT 2371403-1, 2454997-1

mm2

AWG

WIRE BARREL CRIMP

INSULATION

BARREL CRIMP

WIDTH

INSULATION

BARREL

CRIMP HEIGHT

WIRE BRUSH

REAR BELLMOUTH

HEIGHT

±0.03

WIDTH

APPLICATOR

0.128

0.51

1.0 max

(0.84 Crimper

Width)

F shape

1.0 max.

(0.84 Crimper

Width)

F shape

(1) As required

0.0 - 0.45

0.15-0.35

0.0804

0.46

0.0507

(2) 30

0.41

WIRE SIZE

CONTACT 2371403-2, 2454997-2

mm2

AWG

WIRE BARREL CRIMP

INSULATION

BARREL CRIMP

WIDTH

INSULATION

BARREL

CRIMP HEIGHT

WIRE BRUSH

REAR BELLMOUTH

HEIGHT

±0.03

WIDTH

APPLICATOR

0.205

0.68

1.2 max

(0.95 Crimper

Width)

F shape

1.2 max.

(1.05 Crimper

Width)

F shape

1.60 +/-0.05

0.0 - 0.45

0.15-0.35

0.128

0.60

0.0804

(2) 28

0.56

WIRE SIZE

CONTACT 2371403-3, 2454997-3

mm2

AWG

WIRE BARREL CRIMP

INSULATION

BARREL CRIMP

WIDTH

INSULATION

BARREL

CRIMP HEIGHT

WIRE BRUSH

REAR BELLMOUTH

HEIGHT

±0.03

WIDTH

APPLICATOR

0.205

0.68

1.2 max

(0.95 Crimper

Width)

F shape

1.2 max.

(0.95 Crimper

Width)

F shape

(3) 1.4 ~ 1.8

0.0 - 0.45

0.15-0.35

0.128

0.60

0.0804

(2) 28

0.56

CONTACT 2428106-1

mm2

AWG

WIRE BARREL CRIMP

INSULATION

BARREL CRIMP

WIDTH

INSULATION

BARREL

CRIMP HEIGHT

WIRE BRUSH

REAR BELLMOUTH

HEIGHT

±0.03

WIDTH

APPLICATOR

0.128

0.51

1.0 max

(0.84 Crimper

Width)

F shape

1.0 max.

(0.84 Crimper

Width)

F shape

(1) As required

0.0 - 0.45

0.15-0.35

0.0804

0.46

0.0507

(2) 30

0.41

* Note:

(1) Insulation crimp height will be variable depending on insulation diameter.

(2) Slight touch bottom is acceptable for 2371403-1 / 2454997-1 / 2428106-1 with 30AWG wire and 2371403-2

/ 2454997-2 / 2371403-3 / 2454997-3 with 28AWG wire.

(3) Insulation crimp height for 2371403-3 / 2454997-3 will be variable in 1.4~1.8mm depending on insulation

diameter.

Figure 4

L. Straightness

The force applied during crimping may cause some bending between the crimped wire barrel and the mating

portion of the contact. Such deformation is acceptable within the following limits:

The side-to-side bending of the contact may not exceed the limits provided in Figure 5.

The crimped contact, including cutoff tab and burr, shall not be bent above or below the datum line more than

the amount given in Figure 5.

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