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參數資料
| 型號： | MLL1N979C-1 |
| 廠商： | Microsemi Corporation |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 中文描述： | 250 的低電流運算，低反向泄露，低噪聲穩壓二極管 |
| 文件頁數： | 1/3頁 |
| 文件大小： | 221K |
| 代理商： | MLL1N979C-1 |
Silicon 500 mW Zener Diodes
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright
2003
10-31-2003 REV B
W
M
.
C
SCOTTSDALE DIVISION
1N957B, -1 thru 1N992B, -1 DO-35
1
(
DESCRIPTION
APPEARANCE
The popular 1N957B thru 1N992B series of 0.5 watt Zener Voltage
Regulators provides a selection from 6.8 to 200 volts in standard 5% or
10% tolerances as well as tighter tolerances identified by different suffix
letters on the part number. These glass axial-leaded DO-35 Zeners are
also available with an internal-metallurgical-bond option by adding a “-1”
suffix. The 1N962B-1 thru 1N992B-1 are available in JAN, JANTX, and
JANTXV military qualifications. Microsemi also offers numerous other
Zener products to meet higher and lower power applications.
DO-35
(DO-204AH)
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
FEATURES APPLICATIONS / BENEFITS
JEDEC registered 1N957B(-1) to 1N992B(-1) series
Internal metallurgical bond option available by
adding a “-1” suffix
Also available in JAN, JANTX, and JANTXV
qualifications per MIL-PRF-19500/117 by adding the
JAN, JANTX, or JANTXV prefixes to part numbers
for desired level of screening as well as “-1” suffix;
(e.g. JANTX1N962B-1, JANTXV1N986C-1, etc.)
Military Surface Mount equivalents also available in
DO-213AA by adding a UR-1 suffix in addition to the
JAN, JANTX, and JANTXV prefix; e.g.
JANTX1N962BUR-1 (see separate data sheet)
Commercial Surface Mount equivalents available as
MLL957B to MLL992B or with “-1” suffix for bonded
in the DO-213AA MELF style package (consult
factory for others)
DO-7 glass body axial-leaded Zener equivalents are
also available
MAXIMUM RATINGS
Operating and Storage temperature: -65
o
C to
+175
C
Thermal Resistance: 250
o
C/W junction to lead at 3/8
(10 mm) lead length from body, or 310
C/W junction
to ambient when mounted on FR4 PC board (1 oz
Cu) with 4 mm
copper pads and track width 1 mm,
length 25 mm
Steady-State Power: 0.5 watts at T
L
< 50
o
C 3/8 inch
(10 mm) from body or 0.48 W at T
A
< 25
o
C when
mounted on FR4 PC board as described for thermal
resistance above (also see Figure1)
Forward voltage @200 mA: 1.1 volts (maximum) for
1N957B – 1N985B and 1.3 V for 1N985 – 1N992B
Solder Temperatures: 260
o
C for 10 s (max)
current and temperature range
Extensive selection from 6.8 to 200 V
Standard voltage tolerances are plus/minus 5%
with B suffix, 10 % with A suffix identification
Tight tolerances available in plus or minus 2%
or 1% with C or D suffix respectively
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method
1020
Minimal capacitance (see Figure 3)
Inherently radiation hard as described in
Microsemi MicroNote 050
Regulates voltage over a broad operating
MECHANICAL AND PACKAGING
CASE: Hermetically sealed axial-lead glass
DO-35 (DO-204AH) package
TERMINALS: Leads, tin-lead plated solderable
per MIL-STD-750, method 2026
POLARITY: Cathode indicated by band. Diode
to be operated with the banded end positive
with respect to the opposite end for Zener
regulation
MARKING: Part number
TAPE & REEL option: Standard per EIA-296
(add “TR” suffix to part number)
WEIGHT: 0.2 grams
See package dimensions on last page
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