NVD

metal oxide varistor disc type

applications and ratings (continued)

environmental applications

PMS 300 neg.

Black neg.

Type

(v)

Maximum Allowable

Voltage

d.c.

(v)

Max. (2ms)

Energy

lp (A)

Max. Peak

Current

(2 pulses)

E (J)

Clamping

Voltage

Varistor

Voltage

Vc Ic =

0.1mA (V)

NVD10UC - NVD10UBC*

Max. (2ms)

Energy

lp (A)

E (J)

NVD14UC**

Clamping

Voltage

Max. Peak

Current

(2 pulses)

Max. (2ms)

Energy

lp (A)

E (J)

NVD20UC

Clamping

Voltage

Max. Peak

Current

(2 pulses)

Add disk diameter

* Manufacturing range of NVD10UBC is varistor voltages 22 - 270

** NVD14C100 is applied

NVD

UCD510 474 - 561

320

410

67.0

––

845

136.0

––

845

––

––

NVD

UCD620 577 - 682

380

505

67.0

–– 1025

136.0

–– 1025

273

1025

NVD

UCD680 637 - 748

420

560

67.0

–– 1120

136.0

–– 1120

273

1120

NVD

UCD750 697 - 825

460

615

70.0

–– 1240

150.0

–– 1240

300

6500

1240

NVD

UCD780 737 - 858

485

640

70.0

2500

–– 1290

150.0

4500

–– 1290

300

1290

NVD

UCD820 767 - 902

510

670

80.0

–– 1355

165.0

–– 1355

325

1355

NVD

UCD910 857 - 1000

550

745

90.0

–– 1500

180.0

–– 1500

360

1500

NVD

UCD1100 1070 - 1210

680

895

110.0

–– 1815

––

––

––

––

––

––

NVD

UCD1800 1700 - 1980

1000

1465

183.0

–– 2970

360.0

–– 2970

––

––

––

Performance Characteristics

Parameter

Requirement

Test Method

Rapid Change of Temperature

Solderability

-40°C (30 minutes)/ +125°C (30 minutes), 5 cycles, except NVD20UCD

-40°C (30 minutes)/ +85°C (30 minutes), 5 cycles: NVD20UCD

230°C ± 5°C, 5 seconds ± 0.5 second /

250°C ± 5°C, 5 seconds ± 0.5 second (Pb free)

No abnormality in appearance

95% coverage minimum

Varistor Voltage

Voltage between terminals when

the specified current is flowed

Within specified tolerance

Resistance to Solder Heat

260°C ± 5°C, 10 seconds ± 1 second

No abnormality in appearance

Maximum Peak Current

Rated impulse current of (T=8/20µs), positive/negative applied once each

±10%

High Temperature Life

with d.c. Bias

85°C ± 5°C, Vc=(Vd.c.) 1000h

Load: maximum allowable circuit voltage (d.c.)

±10%

High Temperature & High

Humidity Life with Bias

80°C ± 5°C, 95% RH, 1000h

±5%

High Temperature Storage Life

125°C ± 5°C, 1000h

±5%

Low Temperature Storage Life

-40°C ± 5°C, 1000h

±5%

±10%

High Temperature Life

with a.c. Bias

Load: maximum allowable circuit voltage (d.c.)

Ic

Type

0.1mA NVD05UCD

1mA

NVD07UCD - NVD20UCD

195

KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

11/21/08

For Typical Characteristics Graphs see Terms & Definitions. Additional environmental applications can also be found at www.koaspeer.com

1733 Reader's Spreads pg1-203:document

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4:32 PM

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