PRM1/4X-681-JTW datasheet, PDF

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PRM1/4X-681-JTW: DescriptionFixed Resistor, Wire Wound, 0.25W, 680ohm, 250V, 5% +/-Tol, 120ppm/Cel, Surface Mount, 2615, CHIP, ROHS COMPLIANT; CategoryPassive components The resistor; File Size41KB，1 Pages; ManufacturerRCD Components Inc.; Websitehttp://www.rcdcomponents.com/; Environmental Compliance

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PRM1/4X-681-JTW Overview

Fixed Resistor, Wire Wound, 0.25W, 680ohm, 250V, 5% +/-Tol, 120ppm/Cel, Surface Mount, 2615, CHIP, ROHS COMPLIANT

PRM1/4X-681-JTW Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	RCD Components Inc.
package instruction	CHIP, ROHS COMPLIANT
Reach Compliance Code	compliant
Other features	INCREASED POWER
structure	Chip
JESD-609 code	e3
Manufacturer's serial number	PRM
Installation features	SURFACE MOUNT
Number of terminals	2
Maximum operating temperature	150 °C
Minimum operating temperature	-55 °C
Package height	2.79 mm
Package length	6.55 mm
Package shape	RECTANGULAR PACKAGE
Package form	SMT
Package width	3.81 mm
method of packing	TR
Rated power dissipation(P)	0.25 W
Rated temperature	70 °C
resistance	680 Ω
Resistor type	FIXED RESISTOR
series	PRM
size code	2615
surface mount	YES
technology	WIRE WOUND
Temperature Coefficient	120 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	WRAPAROUND
Tolerance	5%
Operating Voltage	250 V

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PULSE RESISTORS, SURFACE MOUNT

RESISTORS CAPACITORS COILS DELAY LINES

PRM SERIES

OPTIONS

RoHS

Term.W is

RoHS

compliant

& 260°C

compatible

High voltage/ high surge capability

Cost effective surface mount package

Available on RCD’s exclusive

SWIFT

program

Option ER: Group A Screening per MIL-R-39008 RCR

Option B: Increased power

Option X: Non-inductive

↓

→

Pulse tolerant surface mount resistors!

Series PRM withstand high energy pulses, and are superior to

conventional film & wirewound types. The heavy duty construction

features a ceramic core, enabling improved thermal transfer and long

term stability. Elements are protected by flame-retardant molding for

excellent environmental performance. Alpha-numeric marking is

standard. PRM resistors are cost effective in a wide variety of pulse

applications including telecom line feed resistors, snubber circuits, in-

rush currents, capacitor charge/discharge circuits, lightning surges, etc.

←

→

↑

↓

SUGGESTED

PAD LAYOUT

↑

↓

.010” typ PRM1/2,.050” PRM1

------

←

↑

←

→

------

SPECIFICATIONS

RCD

Type

PRM1/8

PRM1/4

PRM1/2

PRM1

Wattage Rating

Max.

Max. Peak

Resistance

1,3,4

2,4

Std

Opt B Voltage

Pulse Voltage

R an g e

.125W

.25W

.5W

150V

250V

350V

500V

DIMENSIONS Inch [mm]

.200 ± .02

[5.1 ± .5]

.258 ± .02

[6.55 ± .5]

.472 ± .024

[12 ± .6]

.025 Min.

[.63]

.032 Min.

[0.8]

.050 Min.

[1.27]

.063 Min.

[1.6]

.045 ± .015

[1.14 ± .38]

.060 ± .015

[1.5 ± .38]

.070 ± .02

[1.78 ± .5]

.102 ± .028

[2.6 ± .7]

.080

[2.0]

.100

[2.5]

.160

[4.0]

.200

[5.0]

.100

[2.5]

.125

[3.2]

.08

[2.0]

.120

[3.0]

2K V

3.5KV

5K V

10K V

0.1

Ω

- 2K

0.1

Ω

-10K

0.1

Ω

-24K

0.1

Ω

-100K

.096± .015 .120 ± .01

[2.44± .38] [3.18± .25]

.110± .015 .150± .015

[2.79± .38] [3.81± .38]

.208 ± .02 .228± .016

[5.3 ± .5]

[5.8± .4]

.180 .200

[4.57] [5.0]

.200 .600

[5.0] [15.2]

.811 ± .020 .275± .020 .273± .020

[20.6 ± .5] [6.99± .5] [6.93± .5]

Rated continuous voltage =

√(PxR),

nte value listed.

Pulse voltage capability is dependent on res.value, waveform, & repetition rate.

Expanded range available

Miltiply by 0.7 on Opt.X parts

SURGE CAPABILITY

100

Energy Rating, Joules

PRM1

PRM1/2

PRM1/8

PRM1/4

0.1

0.1 0.25 0.5

.75

2.5

7.5

25 50 75 100 250 500 750

Resistance Value (ohms)

2.5K

5K 7.5K 10K 25K 50K 75K 100K

TYPICAL PERFORMANCE CHARACTERISTICS

Wattage Derating

Max.Induc*: Opt. X

≤

Ω

Max.Induc*: Opt. X

Ω

Short-time Overload

Temperature Cycling

TCR (20ppm avail.)

Moisture Resistance

Shock and Vibration

Effect of Soldering

Voltage Coefficient

Load Life

Operating Temp Range

Dielectric Strength

1.25%/°C >70°C (Opt. B to be derated

0.8%/°C >25°C)

0.2uH PRM1/8-1/2, .3uH PRM1

0.37uH PRM1/8-1/2, .6uH PRM1

±0.5%

±120ppm/°C (<0.2

Ω

=200ppm)

±1%

±0.2%

±0.005%/V

±0.5% Std, ±1% Opt.B

-55 to +150°C, +275°C avail.

500V (1KV avail.)

APPLICATION NOTE

Use chart above to select model to meet desired surge level. Pulse not to exceed

peak V & j ratings (derate 30% for Opt.X), and average power during repetitive

pulses nte rated W. 30% safety factor is recommended for infrequent pulses, 50%

typ. for repetitive pulses (request Note R42 for derating factors attributable to pulse

width, rep. rate, temp., altitude, humidity). Verify by evaluating under worst-case

conditions. Depending on specifics, PR series can often satisfy the surge

requirements of UL-217, -268, -294, -497, -508, -913, -943, -991, -1459, -1971,

ANSI/IEEE C62.41, CCITT (Rec. K17), Bellcore TR-NWT-001089 & TR-TSY-000057,

CSA C22.2-225, IEC 664, IEC 801.5, IEEE587, Can.Doc. CS-03, FCC Part 68., etc.

Consult factory for assistance.

P/N DESIGNATION:

PRM1

- 102 - K

RCD Type

Options:

X, ER, B (leave blank if std)

Resis. Code 1% tol:

3 signif. figures & multiplier,

e.g. R100=0.1Ω, 1R00=1Ω, 10R0=10Ω, 1000=100Ω, 1001=1K.

2%-10%:

2 signif.fig. & multiplier (R10=0.1Ω, 1R0=1Ω, 100=10Ω, 102=1K)

Tolerance:

J=5% (standard), F=1%, G=2%, K=10%

Packaging:

B = bulk, T = Tape & Reel

Optional TC:

20 =20ppm, 50= 50ppm (leave blank if standard)

Termination:

W= Lead-free, Q= Tin/Lead (leave blank if either is acceptable,

in which case RCD will select based on lowest price and quickest delivery)

* specify Opt.75 for induc levels 50% that of Opt.X, or Opt.76 for 33% that of Opt.X

RCD Components Inc,

520 E.Industrial Park Dr, Manchester, NH, USA 03109

rcdcomponents.com

Tel: 603

669

0054 Fax: 603

669

5455 Email:sales@rcdcomponents.com

FA005E

Sale of this product is in accordance with GF-061. Specifications subject to change without notice.

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