厚膜电阻器 - SMD 82 ohm 1% 0.125W
WCR0805-82RFI
Welwyn Components / TT Electronics
1:
¥1.07576
30,700 库存量
Mouser 零件编号
756-WCR0805-82RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 82 ohm 1% 0.125W
30,700 库存量
1
¥1.07576
10
¥0.59551
100
¥0.25651
250
¥0.20679
5,000
¥0.11526
10,000
查看
500
¥0.18984
1,000
¥0.17402
10,000
¥0.10735
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
82 Ohms
125 mW (1/8 W)
1 %
100 PPM / C
- 55 C
+ 155 C
150 V
0805
2012
2 mm (0.079 in)
1.25 mm (0.049 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 8.2K ohm 1% 150V General Purpose SMT
WCR0805-8K2FI
Welwyn Components / TT Electronics
1:
¥1.07576
17,061 库存量
Mouser 零件编号
756-WCR0805-8K2FI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 8.2K ohm 1% 150V General Purpose SMT
17,061 库存量
1
¥1.07576
10
¥0.59551
100
¥0.25651
250
¥0.20679
5,000
¥0.11526
10,000
查看
500
¥0.18984
1,000
¥0.17402
10,000
¥0.10735
25,000
¥0.09153
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
8.2 kOhms
125 mW (1/8 W)
1 %
100 PPM / C
- 55 C
+ 155 C
150 V
0805
2012
2 mm (0.079 in)
1.25 mm (0.049 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1206 100 KOhm 1% Tol AEC-Q200
WCR1206-100KFA
Welwyn Components / TT Electronics
1:
¥1.8193
7,441 库存量
Mouser 零件编号
756-WCR1206-100KFA
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1206 100 KOhm 1% Tol AEC-Q200
7,441 库存量
1
¥1.8193
10
¥0.85202
100
¥0.48025
250
¥0.38872
5,000
¥0.22374
10,000
查看
500
¥0.35595
1,000
¥0.33109
10,000
¥0.20679
25,000
¥0.18984
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
100 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
Automotive Grade
Zero Ohm Jumpers
AEC-Q200
厚膜电阻器 - SMD 100K ohm 1% 200V General Purpose SMT
WCR1206-100KFI
Welwyn Components / TT Electronics
1:
¥1.5707
23,189 库存量
Mouser 零件编号
756-WCR1206-100KFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 100K ohm 1% 200V General Purpose SMT
23,189 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
100 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1206 100 Ohm 1% Tol AEC-Q200
WCR1206-100RFA
Welwyn Components / TT Electronics
1:
¥1.8193
24,106 库存量
Mouser 零件编号
756-WCR1206-100RFA
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1206 100 Ohm 1% Tol AEC-Q200
24,106 库存量
1
¥1.8193
10
¥0.85202
100
¥0.48025
250
¥0.38872
5,000
¥0.22374
10,000
查看
500
¥0.35595
1,000
¥0.33109
10,000
¥0.20679
25,000
¥0.19888
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
100 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
Automotive Grade
Zero Ohm Jumpers
AEC-Q200
厚膜电阻器 - SMD 100 ohm 1% 200V General Purpose SMT
WCR1206-100RFI
Welwyn Components / TT Electronics
1:
¥1.5707
53,560 库存量
Mouser 零件编号
756-WCR1206-100RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 100 ohm 1% 200V General Purpose SMT
53,560 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
100 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 10K ohm 1% 200V General Purpose SMT
WCR1206-10KFI
Welwyn Components / TT Electronics
1:
¥1.5707
2,532 库存量
Mouser 零件编号
756-WCR1206-10KFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 10K ohm 1% 200V General Purpose SMT
2,532 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.13221
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
10 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 10 ohm 1% 200V General Purpose SMT
WCR1206-10RFI
Welwyn Components / TT Electronics
1:
¥1.5707
38,739 库存量
Mouser 零件编号
756-WCR1206-10RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 10 ohm 1% 200V General Purpose SMT
38,739 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
10 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 110K ohm 1% 0.25W
WCR1206-110KFI
Welwyn Components / TT Electronics
1:
¥1.5707
51,897 库存量
Mouser 零件编号
756-WCR1206-110KFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 110K ohm 1% 0.25W
51,897 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
110 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 120 ohm 1% 200V General Purpose SMT
WCR1206-120RFI
Welwyn Components / TT Electronics
1:
¥1.5707
41,517 库存量
Mouser 零件编号
756-WCR1206-120RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 120 ohm 1% 200V General Purpose SMT
41,517 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
120 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 12 ohm 1% 200V General Purpose SMT
WCR1206-12RFI
Welwyn Components / TT Electronics
1:
¥1.5707
50,839 库存量
Mouser 零件编号
756-WCR1206-12RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 12 ohm 1% 200V General Purpose SMT
50,839 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
12 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 130 ohm 1% 0.25W
WCR1206-130RFI
Welwyn Components / TT Electronics
1:
¥1.5707
23,655 库存量
Mouser 零件编号
756-WCR1206-130RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 130 ohm 1% 0.25W
23,655 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.13221
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
130 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 150K ohm 1% 200V General Purpose SMT
WCR1206-150KFI
Welwyn Components / TT Electronics
1:
¥1.5707
10,815 库存量
Mouser 零件编号
756-WCR1206-150KFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 150K ohm 1% 200V General Purpose SMT
10,815 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.13221
购买
最低: 1
倍数: 1
Reel, Cut Tape, MouseReel
WCR
150 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 150 ohm 1% 200V General Purpose SMT
WCR1206-150RFI
Welwyn Components / TT Electronics
1:
¥1.5707
17,459 库存量
Mouser 零件编号
756-WCR1206-150RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 150 ohm 1% 200V General Purpose SMT
17,459 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.13221
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
150 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 15K ohm 1% 200V General Purpose SMT
WCR1206-15KFI
Welwyn Components / TT Electronics
1:
¥1.5707
51,447 库存量
Mouser 零件编号
756-WCR1206-15KFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 15K ohm 1% 200V General Purpose SMT
51,447 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
Reel, Cut Tape, MouseReel
WCR
15 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
Zero Ohm Jumpers
厚膜电阻器 - SMD 15 ohm 1% 200V General Purpose SMT
WCR1206-15RFI
Welwyn Components / TT Electronics
1:
¥1.5707
41,900 库存量
Mouser 零件编号
756-WCR1206-15RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 15 ohm 1% 200V General Purpose SMT
41,900 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
Reel, Cut Tape, MouseReel
WCR
15 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
Zero Ohm Jumpers
厚膜电阻器 - SMD 180K ohm 1% 0.25W
WCR1206-180KFI
Welwyn Components / TT Electronics
1:
¥1.5707
42,449 库存量
Mouser 零件编号
756-WCR1206-180KFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 180K ohm 1% 0.25W
42,449 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
180 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 180 ohm 1% 200V General Purpose SMT
WCR1206-180RFI
Welwyn Components / TT Electronics
1:
¥1.5707
49,648 库存量
Mouser 零件编号
756-WCR1206-180RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 180 ohm 1% 200V General Purpose SMT
49,648 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
Reel, Cut Tape, MouseReel
WCR
180 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
Zero Ohm Jumpers
厚膜电阻器 - SMD 18 ohm 1% 200V General Purpose SMT
WCR1206-18RFI
Welwyn Components / TT Electronics
1:
¥1.5707
54,170 库存量
Mouser 零件编号
756-WCR1206-18RFI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 18 ohm 1% 200V General Purpose SMT
54,170 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
Reel, Cut Tape, MouseReel
WCR
18 Ohms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1206 1 KOhm 1% Tol AEC-Q200
WCR1206-1K0FA
Welwyn Components / TT Electronics
1:
¥1.8193
23,495 库存量
Mouser 零件编号
756-WCR1206-1K0FA
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1206 1 KOhm 1% Tol AEC-Q200
23,495 库存量
1
¥1.8193
10
¥0.85202
100
¥0.48025
250
¥0.38872
5,000
¥0.22374
10,000
查看
500
¥0.35595
1,000
¥0.33109
10,000
¥0.20679
25,000
¥0.19888
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
1 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
Automotive Grade
Zero Ohm Jumpers
AEC-Q200
厚膜电阻器 - SMD 1K ohm 1% 200V General Purpose SMT
WCR1206-1K0FI
Welwyn Components / TT Electronics
1:
¥1.5707
59,224 库存量
Mouser 零件编号
756-WCR1206-1K0FI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1K ohm 1% 200V General Purpose SMT
59,224 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.15707
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.14012
25,000
¥0.13221
购买
最低: 1
倍数: 1
Reel, Cut Tape, MouseReel
WCR
1 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1.1K ohm 1% 200V General Purpose SMT
WCR1206-1K1FI
Welwyn Components / TT Electronics
1:
¥1.5707
38,656 库存量
Mouser 零件编号
756-WCR1206-1K1FI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1.1K ohm 1% 200V General Purpose SMT
38,656 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
1.1 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1.2K ohm 1% 200V General Purpose SMT
WCR1206-1K2FI
Welwyn Components / TT Electronics
1:
¥1.5707
18,583 库存量
Mouser 零件编号
756-WCR1206-1K2FI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1.2K ohm 1% 200V General Purpose SMT
18,583 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.13221
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
1.2 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1.3K ohm 1% 0.25W
WCR1206-1K3FI
Welwyn Components / TT Electronics
1:
¥1.5707
15,953 库存量
Mouser 零件编号
756-WCR1206-1K3FI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1.3K ohm 1% 0.25W
15,953 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.13221
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
1.3 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers
厚膜电阻器 - SMD 1.5K ohm 1% 200V General Purpose SMT
WCR1206-1K5FI
Welwyn Components / TT Electronics
1:
¥1.5707
30,279 库存量
Mouser 零件编号
756-WCR1206-1K5FI
Welwyn Components / TT Electronics
厚膜电阻器 - SMD 1.5K ohm 1% 200V General Purpose SMT
30,279 库存量
1
¥1.5707
10
¥0.89383
100
¥0.38081
250
¥0.30623
5,000
¥0.17402
10,000
查看
500
¥0.28137
1,000
¥0.25651
10,000
¥0.16498
25,000
¥0.15707
购买
最低: 1
倍数: 1
详细信息
Reel, Cut Tape, MouseReel
WCR
1.5 kOhms
250 mW (1/4 W)
1 %
100 PPM / C
- 55 C
+ 155 C
200 V
1206
3216
3.1 mm (0.122 in)
1.55 mm (0.061 in)
0.55 mm (0.022 in)
General Purpose
Zero Ohm Jumpers