| COMPENSATED | DEVICES INC e 1N821, 1N623, 1N625, 1NB27 AND 1NG29 AVAILABLE IN JAN, JANTX AND JANTXV e 1N621-1, 1N623-1, 1N625-1, 1N827-1 AND 1N629-1 AVAILABLE IN JAN, JANTX AND JANTXV 6.2 AND 6.55 VOLT NOMINAL ZENER VOLTAGES TEMPERATURE COMPENSATED ZENER DIODES we BOE D mm 2302554 0000352 2 mm Tell . 1N821 thru 1N829A and 1N821-1 thru IN829-1 MAXIMUM RATINGS Operating Temperature: Storage Temperature: DC Power Dissipation: Power Derating: -65C to +200C -65C to +200C 500mW @ 50C 3.33 mW/C above 50C ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified. MAXIMUM VOLTAGE ZENER ZENER ZENER TEMPERATURE EFFECTIVE JEDEG VOLTAGE TEST IMPEDANCE STABILITY TEMPERATURE TYPE CURRENT (Note 1) (AVzt MAX) COEFFICIENT NUMBER Vzt @ Izy lzt 22zT -55 to +100 (Note 2) VOLTS mA OHMS mV HEC 1N821 .9-65 75 96 001 INS21A 59-65 75 10 96 001 1N822t 59-65 75 96 ool 1N823 .9-65 75 15 48 0 005 1N823A 59-65 75 10 48 0 005 1N824f 59-65 75 15 48 0005 1N825 59-65 75 15 19 6.002 IN825A 59-65 75 10 19 0002 1N826 62-69 75 15 20 0 002 1N627 59-65 75 15 9 0001 1N827A 5.9-65 75 10 9 ool 1N829 59-65 75 15 5 00005 1N829A 59-65 75 10 5 0 0005 fDouble Anode: Electrical Specifications Apply Under Both Bias Polarities. NOTE 1 NOTE 2 Gri compensates DEVIGES INCORPORATED Zener impedance is derived by superimposing on {zt a 60Hz rms a.c. current equal to 10% of (zt. The maximum allowable change observed over the entire tempera- ture range i.e., the diode voltage will mot exceed the specified mV at any discrete temperature between the established limits. POLARITY (CATHODE 000 25.400 BO18/0 022. yq 0.457/0559 r | oe ING All dimensions tn Tm FIGURE 1 DESIGN DATA CASE: Hermetically sealed glass case. 00-7 outline. LEAD MATERIAL: Copper clad steel, LEAD FINISH: Tin Plate THERMAL RESISTANCE: 250 C/W (Typical) junction to ambfent,. POLARITY: Diode to be oper- ated with the banded (cathode) end positive with respct ta the opposite end. WEIGHT: 0.2 grams. _MOUNTFING- POSITION: Any. | 166 TREMONT STREET, MELROSE, MASSACHUSETTS 02176 PHONE (617) 665-1071 FAX (617) 665-7379 5COMPENSATED DEVICES INC 20E D mm 2302554 ooooasa 4 me T= -4 Pd, Rated Power Dissipation (mW) cpegttadtit: 4 tu eae oa Sis _ _ 1N821 thru INB29A INCLUDING -1 VERSIONS 600 500 =e 400 300 200 100 mS , 25 50 100 150 200 TL, Lead temperature (C) 3/8 from body FIGURE 2 POWER DERATING CURVE ZENER IMPEDANCE 2Zzt (OHMS) 5 6 7 8 9 10 OPERATING CURRENT Izt (mA) FIGURE 3 TYPICAL CHANGE OF ZENER IMPEDANCE WITH CHANGE IN OPERATING CURRENT +001 HIE: +0052 -.0005 = 0010}!!! CHANGE IN TEMPERATURE COEFFICIENT (%/C) OPERATING CURRENT Izt (mA) FIGURE 4 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT