1.27
50
1.27
50
12.15
478
2.50
98
Board dimensions (top view)1
Scale 3:1
Connector callouts (bottom view)2
Scale 3:1
Profile4
Scale 3:1 Scale 1:16
Actual sizeQTR sensor5
Scale 3:1
Isometric view3
Scale 3:1
4×1.02
40 5.1
200
20.0
787
2.5
100
2.5
98
2.18
86
Emitter
Phototransistor
1.02
40
1.5
59
1.1
43
1.
1.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR-HD-01x Reflectance Sensor
15 February 2019
4101, 4201Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs21a
Board dimensions (top view)1
Scale 3:1
Connector callouts (bottom view)2
Scale 3:1
Profile4
Scale 3:1 Scale 1:16
Actual sizeQTRX/QTRXL sensor5
Scale 3:1
Isometric view3
Scale 3:1
2.50
98
11.65
459
1.27
50
1.27
50
1.02
40
2.0
80
1.1
43
1.
1.
Shown in same
orientation as
in view 1.
2.18
86
2.5
98
2.5
100
5.1
200
20.0
787
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX/QTRXL-HD-01x Reflectance Sensor
15 February 2019
4301, 4401, 4501, 4601Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs21j
4×1.02
40
Emitter
Phototransistor
1.27
50
1.27
50
Board dimensions (top view)1
Scale 3:1
Connector callouts (bottom view)2
Scale 3:1
Profile4
Scale 3:1 Scale 1:16
Actual sizeQTR sensor5
Scale 3:1
Isometric view3
Scale 3:1
12.15
478
3.81
150
Emitter
Phototransistor
4×1.02
40
1.
1.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR-MD-01x Reflectance Sensor
15 February 2019
4141, 4241Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs21b
20.0
787
7.6
300
3.8
150
2.5
98
2.18
86
1.5
59
1.02
40
11.65
459
3.81
150
Board dimensions (top view)1
Scale 3:1
Connector callouts (bottom view)2
Scale 3:1
Profile4
Scale 3:1 Scale 1:16
Actual sizeQTRX/QTRXL sensor5
Scale 3:1
Isometric view3
Scale 3:1
1.27
50
1.27
50
3.8
150
2.5
98
20.0
787
7.6
300
2.18
86
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX/QTRXL-MD-01x Reflectance Sensor
15 February 2019
4341, 4441, 4541, 4641Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs21k
2.0
80
1.02
40
Emitter
Phototransistor
1.
1.
Shown in same
orientation as
in view 1.
4×1.02
40
12.15
478
3.08
121
4.00
157
Board dimensions (top view)1
Scale 3:1
Connector callouts (bottom view)2
Scale 3:1
Profile4
Scale 3:1 Scale 1:16
Actual sizeQTR sensor5
Scale 3:1
Isometric view3
Scale 3:1
1.27
50
1.27
50
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR-HD-02x Reflectance Sensor Array
15 February 2019
4102, 4202Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs22a
2.18
86
2.5
98
5.1
200
20.0
787
10.2
400
1.
1.
Emitter
Phototransistor
5×1.02
40
1.5
59
1.02
40
1.27
50
1.27
50
6Scale 1:1
Actual sizeProfile4
Scale 3:1
Board dimensions (top view)1
Scale 3:1
Connector callouts (bottom view)2
Scale 3:1
QTRX/QTRXL sensor5
Scale 3:1
Isometric view3
Scale 3:1
4.00
157
3.08
121
11.70
461
5×1.02
40
1.
1.
Shown in same
orientation as
in view 1.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX-HD-02x Reflectance Sensor Array
15 February 2019
4302, 4402Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs22j
Emitter
Phototransistor
5.1
200
10.2
400
2.18
86
2.5
98
20.0
787
2.0
80
1.02
40
B B
1.27
50
12.15
478
2.50
98
P
Board dimensions (top view)1
Scale 2:1
Connector callouts (bottom view)2
Scale 2:1
Profile3
Scale 2:1 4QTR sensor
Scale 2:1
1.02
40
1.5
59
Item numbers*
W (width)
P (pitch)
N (number of sensors)
BC
(hole count)
4103, 420313.0 [512]
4.00 [157]
31.42 [56]
74142, 4242 8.00
[315]2
4104, 420417.0 [669]
4.00 [157] 4
3.42 [135] 8
4105, 420521.0 [827]
4.00 [157] 5
4.15 [163] 9
4143, 42438.00 [315] 3
4106, 420625.0 [984]
4.00 [157] 6
6.15 [242] 10
4107, 420729.0
[1142]
4.00 [157] 7
6.88 [271] 11
4144, 42448.00 [315] 4
4108, 420833.0
[1299]4.00 [157] 8
8.88 [350] 12
4109, 420937.0
[1457]
4.00 [157]
99.61 [378]
134145, 4245 8.00
[315]5
4111, 421145.0
[1772]
4.00 [157]
1112.34 [486]
154146, 4246 8.00
[315]6
4113, 421353.0
[2087]
4.00 [157]
1315.07 [593]
174147, 4247 8.00
[315]7
4115, 421561.0
[2402]
4.00 [157] 15
17.80 [701] 19
4108, 42088.00 [315] 8
4117, 421769.0
[2717]
4.00 [157] 17
20.53 [808] 21
4109, 42098.00 [315] 9
4119, 421977.0
[3031]
4.00 [157] 19
23.26 [916] 23
4110, 42108.00 [315] 10
1.
1.
*Some items available by special order only.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR Reflectance Sensor Array
15 February 2019
see tableIntended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs23a-irs39a
W
20.0
787
2.5
98
2.5
98
2.5
98
2×
2.18
86
C×1.02
40
Emitter
Phototransistor
B B
1.27
50
12.15
478
2.50
98
P
P
11.65
459
2.50
98
B B
1.27
50
Board dimensions (top view)1
Scale 2:1
Connector callouts (bottom view)2
Scale 2:1
Profile3
Scale 2:1QTRX/QTRXL sensor
4Scale 2:1
20.0
787
2×2.18
86
2.5
98
W
2.5
98
2.5
98
2.0
80
1.02
40
Item numbers*
W (width)
P (pitch)
N (number of sensors)
BC
(hole count)
4303, 440313.0 [512]
4.00 [157]
31.42 [56]
74342, 4442 8.00
[315]2
4304, 440417.0 [669]
4.00 [157] 4
3.42 [135] 8
4305, 440521.0 [827]
4.00 [157] 5
4.15 [163] 9
4343, 44438.00 [315] 3
4306, 440625.0 [984]
4.00 [157] 6
6.15 [242] 10
4307, 440729.0
[1142]
4.00 [157] 7
6.88 [271] 11
4344, 44448.00 [315] 4
4308, 440833.0
[1299]4.00 [157] 8
8.88 [350] 12
4309, 440937.0
[1457]
4.00 [157]
99.61 [378]
134345, 4445 8.00
[315]5
4311, 441145.0
[1772]
4.00 [157]
1112.34 [486]
154346, 4446 8.00
[315]6
4313, 441353.0
[2087]
4.00 [157]
1315.07 [593]
174347, 4447 8.00
[315]7
4315, 441561.0
[2402]
4.00 [157] 15
17.80 [701] 19
4348, 44488.00 [315] 8
4317, 441769.0
[2717]
4.00 [157] 17
20.53 [808] 21
4349, 44498.00 [315] 9
4319, 441977.0
[3031]
4.00 [157] 19
23.26 [916] 23
4350, 44508.00 [315] 10
1.
1.
*Some items available by special order only.
Shown in same
orientation as
in view 1.
C×1.02
40
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX Reflectance Sensor Array
15 February 2019
see tableIntended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs23j-irs39j
Emitter
Phototransistor
P
11.65
459
2.50
98
B B
1.27
50
B B
1.27
50
2.50
98
12.15
478
P
Board dimensions (top view)1
Scale 4:3
Connector callouts (bottom view)2
Scale 4:3
Profile3
Scale 4:34
QTR sensor
Scale 4:3
C×1.02
40
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR Reflectance Sensor Array
15 February 2019
see tableIntended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs41a-irs49d
Item numbers*
W (width)
P (pitch)
N (number of sensors)
BC
(hole count)
4121, 422185
[3346]
4.00 [157]
21 24.72 [973]
30
4151, 4251 8.00 [315]
11 31.07 [1123]
20
4123, 422393
[3661]
4.00 [157] 23
27.45 [1081] 32
4152, 42528.00 [315] 12
35.07 [1381] 20
4125, 4225101
[3976]
4.00 [157] 25
30.18 [1188] 34
4153, 42538.00 [315] 13
37.80 [1488] 22
4127, 4227109
[4291]
4.00 [157] 27
32.91 [1296] 36
4154, 42548.00 [315] 14
41.80 [1646] 22
4129, 4229117
[4606]
4.00 [157] 29
35.64 [1403] 38
4155, 4255 8.00 [315]
15 44.53 [1753]
24
1.
1.
*Some items available by special order only.
2×2.18
86
2.5
98
2.5
98
W
2.5
98
Emitter
Phototransistor
1.57
62
1.5
59
B B
1.27
50
2.50
98
12.15
478
P
P
2.50
98
11.65
459
B
1.27
50
B
Board dimensions (top view)1
Scale 4:3
Connector callouts (bottom view)2
Scale 4:3
Profile3
Scale 4:3QTRX/QTRXL sensor
4Scale 4:3
2.0
80
1.57
62
2.5
98
2.5
98
2×
2.18
86
2.5
98
W
Item numbers*
W (width)
P (pitch)
N (number of sensors)
BC
(hole count)
4321, 442185
[3346]
4.00 [157]
21 24.72 [973]
30
4351, 4451 8.00 [315]
11 31.07 [1123]
20
4323, 442393
[3661]
4.00 [157] 23
27.45 [1081] 32
4352, 44528.00 [315] 12
35.07 [1381] 20
4325, 4425101
[3976]
4.00 [157] 25
30.18 [1188] 34
4353, 44538.00 [315] 13
37.80 [1488] 22
4327, 4427109
[4291]
4.00 [157] 27
32.91 [1296] 36
4354, 44548.00 [315] 14
41.80 [1646] 22
4329, 4429117
[4606]
4.00 [157] 29
35.64 [1403] 38
4355, 4455 8.00 [315]
15 44.53 [1753]
24
1.
1.
*Some items available by special order only.
Shown in same
orientation as
in view 1.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX Reflectance Sensor Array
15 February 2019
see tableIntended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs41j-irs49m
C×1.02
40
Emitter
Phototransistor
P
2.50
98
11.65
459
B
1.27
50
B
1.27
50
38.37
1511
38.37
1511
2.50
98
4.00
157
12.15
478
Board dimensions (top view)1
Scale 1:1
Connector callouts (bottom view)2
Scale 1:1
3Profile
Scale 1:1
QTR sensor4
Scale 2:1
Isometric view5
Scale 1:1
1.57
62
1.5
59
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR-HD-31x Reflectance Sensor Array
15 February 2019
4131, 4231Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs51a
1.27
50
40×1.02
40
28.0
1102
28.0
1102
2.5
98
125.0
4921
4×2.18
86 64.0
2520
2.5
98
16.5
650
1.
1.
Emitter
Phototransistor
Board dimensions (top view)1
Scale 1:1
Connector callouts (bottom view)2
Scale 1:1
3Profile
Scale 1:1
QTR sensor4
Scale 2:1
Isometric view5
Scale 1:1
2.50
98
12.15
478
8.00
315
48.53
1911
48.53
1911
1.27
50
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTR-MD-16x Reflectance Sensor Array
15 February 2019
4156, 4256Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs51d
1.57
62
1.5
59
Emitter
Phototransistor
1.
1.
125.0
4921
16.5
650
28.0
1102
64.0
2520
4×2.18
86 28.0
1102
2.5
98
2.5
98
24×1.02
40
38.37
1511
38.37
1511
1.27
50
Board dimensions (top view)1
Scale 1:1
Connector callouts (bottom view)2
Scale 1:1
QTRX/QTRXL sensor4
Scale 2:13
Profile
Scale 1:1
Isometric view5
Scale 1:1
11.65
459
2.50
98
4.00
157
2.0
80
1.57
62
40×1.02
40
1.
1.
Shown in same
orientation as
in view 1.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX-HD-31x Reflectance Sensor Array
15 February 2019
4331, 4431Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs51j
125.0
4921
16.5
650
64.0
2520
28.0
1102
28.0
1102
2.5
98
2.5
98
4×2.18
86
Emitter
Phototransistor
Connector callouts (bottom view)2
Scale 1:1
3Profile
Scale 1:1
Isometric view5
Scale 1:1
QTRX/QTRXL sensor4
Scale 2:1
Board dimensions (top view)1
Scale 1:1
48.53
1911
48.53
1911
1.27
50
2.50
98
8.00
315
11.65
459
2.0
80
1.57
62
24×1.02
40
Emitter
Phototransistor
1.
1.
Shown in same
orientation as
in view 1.
R
https://www.pololu.com/category/123
Name:
Units:
Drawing date:
mm[mil]
Material:© 2019 Pololu Corporationmixed
Item number:
QTRX-MD-16x Reflectance Sensor Array
15 February 2019
4356, 4456Intended for #2 and M2 screws.1.Grid lines indicate 2.54 mm [100 mil] spacing.2.To get the specified scale, select 100% in print settings.3.Drill location tolerance: ±0.1 [±5].4.Board edge tolerance: ±0.3 [±10].5.
Dev code:irs51m
125.0
4921
16.5
650
4×2.18
86 28.0
1102
64.0
2520
28.0
1102
2.5
98
2.5
98