Catalogue - General catalogue - Caddock Electronics - (Version JPG)

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Power resistor, Thick-film resistor, Resistor, Chip resistor, High-voltage resistor

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Type 1787 Current Sense Resistor Networks

_Page 2 of 2

Figure 2 - Model Nos. 1787-41 and 1787-412

Figure 1 - Model Nos. 1787-31 and 1787-312

1.150 ±.020 - (29.21 ±.51)-


	— (29.21 +.51) —~	—
	caddock model 1787-312 0421	t .580 ±.020 (14.73 ±.51)

1.150 ±.020

- .090 (2.29) MAX.

caddock model 1787-412 0422

.580 ±.020 (14.73 ±.51)

_*_

.025 ±.002 (.64 ±.05) DIA. - Tinned Copper

.025 ±.002 (.64 ±.05) DIA. — Tinned Copper

PIN 1 -

.200 (5.08)-.400 (10.16)-.700 (17.78)-

-.250 ±.050 (6.35 ±1.27)

.200 (5.08) .400 (10.16) .700 (17.78)

— .075 (1.91)

-.900 (22.86) -1.000 (25.40)--

900Q 90Q 9Q 1Q

2 13 14 5 6

V- Rc-

Model Nos. 1787-41 and 1787-412 Measurement Connections

Model Nos. 1787-31 and 1787-312 Measurement Connections


Resistances		Kelvin Connections
"R"	Total Value	Sense Lead Pi	Current Lead Ci	Current Lead C2	Sense Lead P2
Ra	1,000 a	Pin 1	Pin 1	Pin 5	Pin 6
Rb	100 a	Pin 1	Pin 2	Pin 5	Pin 6
Rc	10 a	Pin 1	Pin 3	Pin 5	Pin 6
Rd	1 a	Pin 1	Pin 4	Pin 5	Pin 6


Resistances		Kelvin Connections
"R"	Total Value	Sense Lead Pi	Current Lead Ci	Current Lead C2	Sense Lead P2
Ra	999.9 n	Pin 1	Pin 1	Pin 5 *	Pin 6 *
Rb	99.9 n	Pin 1	Pin 2	Pin 5 *	Pin 6 *
Rc	9.9 n	Pin 1	Pin 3	Pin 5 *	Pin 6 *
Rd	0.9 n	Pin 1	Pin 4	Pin 5 *	Pin 6 *

Figure 3 - Model Nos. 1787-5, 1787-53, and 1787-535

Figure 4 - Model Nos. 1787-6, 1787-64, and 1787-645

Figure 5 - Model Nos. 1787-13 and 1787-132

.850 ±.020 -(21.59 ±.51)-

.850 ±.020 — (21.59 ±.51)—

1.000 ±.020 — (25.40 ±.51) —

.090 (2.29) MAX.

- .090 (2.29) MAX.

caddock model 1787-6

0421

caddock model 1787-132 0405

caddock model 1787-5 0406

.580 ±.020 (14.73 ±.51)

_*_

.025 ±.002 (.64 ±.05) DIA. — Tinned Copper

.025 +.002 (.64 ±.05) DIA. — Tinned Copper

.025 ±.002 (.64 ±.05) DIA. — Tinned Copper

PIN 1 -

.200 (5.08)-.500 (12.70)-.700 (17.78)-.800 (20.32)-

PIN 1

.250 ±.050 (6.35 ±1.27)

-.250 ±.050 (6.35 ±1.27)

- .250 ±.050 (6.35 ±1.27)

.200 (5.08) .400 (10.16) .700 (17.78)

.200 (5.08)-.400 (10.16)-.700 (17.78)-

— .075

(1.91)

— .075 (1.91)

*Correct installation and accurate measurement of the networks' characteristics requires that Pins 4 and 5 be shorted within .100" (2.54 mm) of the body of the network. All measurements must be made at this point.

900 9D 0.9Q

900Q 90Q 10Q

900Q 90Q 9Q

0.1q

2 13 4 5

L-Rc-* k- Rb--

3 4

1 12 |34 Rc-.

Model Nos. 1787-13 and 1787-132 are normally to be used in series with a customer purchased 0.1a

V- Rb-

Model Nos. 1787-13 and 1787-132 Measurement Connections


	Resistances
	"R"	Total Value
	Ra	1,000 a
	Rb	100 a

	Rc	10 a


	Resistances
	"R"	Total Value
	Ra	999 q
	Rb	99 q

	Rc	9 q


Resistances		Kelvin Connections
"R"	Total Value	Sense Lead Pi	Current Lead Ci	Current Lead C2	Sense Lead P2
Ra	99.9 a	Pin 1	Pin 1	Pin 4 *	Pin 5 *
Rb	9.9 a	Pin 1	Pin 2	Pin 4 *	Pin 5 *
Rc	0.9 a	Pin 1	Pin 3	Pin 4 *	Pin 5 *

DIMENSIONS IN INCHES AND (MILLIMETERS)

Applications Engineering Sales and Corporate Office

17271 North Umpqua Hwy. Ihlf* ¹⁷¹⁷ Chicago Avenue

Roseburg, Oregon 97470-9422 ffWW. Riverside, California 92507-2364

Phone: (541) 496-0700 e-mail: caddock@caddock.com • web: www.caddock.com Phone: (951) 788-1700

Fax: (541) 496-0408 For Caddock Distributors listed by country see caddock.com/contact/dist.html Fax: (951) 369-1151

28_IL119.1004

General catalogue - Caddock Electronics - #3

Power resistor, Thick-film resistor, Resistor, Chip resistor, High-voltage resistor