OD820JE [OHMITE]

RES 82 OHM 1/4W 5% AXIAL;


型号：	OD820JE
厂家：	OHMITE MFG. CO.
描述：	RES 82 OHM 1/4W 5% AXIAL
文件：	总2页 (文件大小：326K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

OD/OF Series

Little Demon^®Carbon Composition Molded

10% Tolerance

F ꢀ at u ꢁ ꢀ S

Ohmite’s Little Demons are small, reliable carbon

composition resistors with exceptional strength.

They are made tough by a molding process that

combines the terminals, insulation and resistive ele-

ment into an integrated unit. Along with their small

size, Little Demons perform with low noise, dissipate

heat rapidly and offer high temperature stability.

Color codes are readable even after prolonged use

thanks to a very durable coating that resists abra-

sions and chipping normally associated with auto-

matic insertion equipment.

•ꢀMoldedꢀinsulationꢀforꢀhighꢀdielectricꢀstrength

•ꢀRuggedꢀconstruction

•ꢀHighꢀsurgeꢀcapabilities

•ꢀComparableꢀtoꢀ“Mil”ꢀRC07,ꢀRC20,ꢀandꢀRC32ꢀtypes

•ꢀOD/OFꢀSeriesꢀavailableꢀinꢀE12ꢀvalues

•ꢀ5%ꢀTolernaceꢀDiscontinuedꢀAugustꢀ2021

SꢀꢁꢂꢀS SpꢀcꢂFꢂcatꢂOnS

Series Mil-R-11 Type Wattage

Ohms

Tolerance Max. Voltage Dielectric VAC

ꢀ ODꢀ

RC07ꢀ

0.25ꢀ

2.2Ωꢀ-ꢀ5.6Mꢀ

±10%ꢀꢀ

250ꢀ

500ꢀ

ꢀ OFꢀ

RC20ꢀ

0.50ꢀ

2.2Ωꢀ-ꢀ18Mꢀ

±10%ꢀꢀ

350ꢀ

700ꢀ

chaꢁactꢀꢁꢂStꢂcS

100,000

Solder-coatedꢀcopperꢀterminal.

MoldedꢀPhenolic

Terminals

Body

Single Pulse Power Capability

10,000

1,000

100

±10%

Tolerance

Derating

Linearlyꢀfromꢀ100%ꢀ@ꢀ+70°Cꢀtoꢀ0%ꢀ@ꢀ130°C

-7

-6

-5

-4

-3

-2

-1

Pulse width (s)

DꢂmꢀnSꢂOnS

Series Length max. Diam. max. Lead Dia.

1.135" ±0.12

28.83mm ±3

0.276 / 7.0 0.098 / 2.5 0.024/0.60

0.406 /10.3 0.150 / 3.8 0.028/0.70

(continued)

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

OD/OF Series

Little Demon^®Carbon Composition Molded

10% Tolerance

packagꢂng

All resistors are packaged in sealed poly bags with desiccant

to maintain a consistent humidity during storage. If parts are

removed from the protective plastic bag they should be used

as soon as possible or resealed in the plastic bag.

Storage: Ohmite recommends storing carbon composition

resistorsꢀinꢀaꢀcontrolledꢀenvironmentꢀatꢀaꢀtemperatureꢀofꢀ5°ꢀtoꢀ

35°Cꢀandꢀrelativeꢀhumidityꢀofꢀlessꢀthanꢀ60%.ꢀInventoryꢀshouldꢀ

always be used on a first-in-first-out basis.

Tape/Reel

0.5mm max.

6mm ±.5

280mm

(ref.)

Qty./reel

5000

260

3000

260

+1.6

-1.4

52.4mm

Reel size (mm)

Qty./carton

40,000 24,000

260mm

±5

Gross carton wt. (kg)

0.04

Carton size (m³)

5.08mm ±.38

455mm ±5

Ammo Box

1mm max.

Tape width (mm)

Qty./box

2000

60mm ±5 (OD)

65mm ±5 (OF)

14.5mm ±.5

60.4mm±1

Qty./carton

30,000 30,000

0.03

Gross carton wt. (kg)

Carton size (m3)

0.05

L₁

L₂

3.2mm min.

3mm

75mm ±5

L₁– L₂= 1mm max.

60.4mm ±1

ꢁꢀSꢂStOꢁ uSꢀ guꢂDꢀlꢂnꢀS

Carbon composition resistors are manufactured by extruding

a blend of carbon and organic binders inside a phenolic outer

body. The extrusion is cut to length, leads inserted, cured,

and marked to form a finished resistor. The carbon and binder

mixture is adjusted to produce different resistance values. The

resistorsꢀareꢀsortedꢀforꢀ10%ꢀandꢀ20%ꢀtoleranceꢀvalues.

Carbon composition resistors are able to withstand larger

short-term pulses and higher voltages than film resistors and

areꢀvirtuallyꢀimperviousꢀtoꢀESDꢀeventsꢀ(Electro-staticꢀdis-

charge). Carbon composition resistors are also sensitive to

moisture and, therefore, storage recommendations should be

adhered to. Generally, any moisture absorbed during storage

will be "baked out" during the soldering operation. If the prod-

uct is stored properly the resistance shift during the soldering

operationꢀwillꢀbeꢀminimal,ꢀlessꢀthanꢀ2%ꢀorꢀ3%.

Carbon composition resistors are highly hygroscopic and

changes in resistance value can occur if too much moisture is

absorbed.ꢀForꢀthisꢀreason,ꢀitꢀisꢀrecommendedꢀnotꢀtoꢀuseꢀwaterꢀ

or water-soluble solvents to clean these components. Alcohol

or hydrocarbon solvents are recommended for rinsing.

bakꢀ pꢁOcꢀDuꢁꢀ anD cautꢂOnS

A. Heat Treatment C.ꢀSolderꢀheatꢀtestꢀafterꢀtreatment

D.ꢀCautions

ꢀꢀꢀꢀ110°Cꢀ±10°C

ꢀꢀꢀꢀ15ꢀhours

B.ꢀFrequencyꢀofꢀ

heat treatment

Solder

Dip

Solderability: may be affected due to oxidization of lead wire

Resistance value: some units may not completely recover to

Typeꢀ

ODꢀ

OFꢀ

Temp.ꢀ

Timeꢀ Evaluation

300°Cꢀ

350°Cꢀ

3ꢀsecꢀ withinꢀ±3% original value.

3ꢀsecꢀ withinꢀ±3% Soldering heat: some treated product may have substantial

ꢀꢀꢀꢀ1ꢀtimeꢀonly

resistance change during soldering operation. It is recom-

mended that parts be tested to evaluate soldering heat

effects.ꢀSolderꢀshouldꢀnotꢀcomeꢀinꢀcontactꢀwithinꢀ4mmꢀofꢀ

resistor body as this may cause a significant shift in resis-

tance value due to high heat exposure.

*DepthꢀofꢀImmersion:ꢀ4mmꢀfromꢀtheꢀresistorꢀ

body

OꢁDꢀꢁꢂng ꢂnFOꢁmatꢂOn

RoHS compliant

O D 6 8 3 K E -TR

Series

Ohms

Tolerance

K = 10%

Packaging

None = cut reel, 100/bag (std.)

-TR = taped and reeled

68G=

6.8

680

680 =

681 =

-A

-B

= ammo pack

= bulk (loose)

682 = 6,800

683 = 68,000

684 = 680,000

rev 8/21-4

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

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