Philips plva400a DATASHEETS
DISCRETE SEMICONDUCTORS
DATA SH EET
M3D176
PLVA400A series
Low-voltage avalanche regulator
diodes
Product specification
Supersedes data of April 1992
1996 Apr 26
Philips Semiconductors Product specification
Low-voltage avalanche regulator diodes PLVA400A series
FEATURES
• Very low dynamic impedance at
low currents: approximately1⁄20 of
conventional series
• Hard breakdown knee
• Low noise: approximately1⁄10of
conventional series
• Total power dissipation:
max. 400 mW
• Small tolerances of V
Z
• Working voltage range:
nom. 5.0 to 6.8 V
• Non-repetitive peak reverse power
dissipation: max. 30 W.
APPLICATIONS
• Low current, low power, low noise
applications
• CMOS RAM back-up circuits
• Voltage stabilizers
• Voltage limiters
• Smoke detector relays.
DESCRIPTION
High performance voltage regulator diodes in hermetically sealed leaded glass
SOD27 (DO-35) packages.
The series consists of PLVA450A to PLVA468A.
handbook, halfpage
ka
MAM239
Fig.1 Simplified outline (SOD27; DO-35) and symbol.
MARKING
TYPE NUMBER MARKING CODE
PLVA450A 450APH
PLVA453A 453APH
PLVA456A 456APH
PLVA459A 459APH
PLVA462A 462APH
PLVA465A 465APH
PLVA468A 468APH
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
I
F
I
ZRM
P
P
tot
ZSM
continuous forward current − 250 mA
repetitive peak working current tp= 100 µs; δ = 10% 250 mA
total power dissipation Ttp≤ 55 °C; note 1 − 400 mW
non-repetitive peak reverse power
tp= 100 µs; Tj= 150 °C30W
dissipation
T
stg
T
j
storage temperature −65 +200 °C
junction temperature − 175 °C
Note
1. Lead length 8 mm.
1996 Apr 26 2
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