Philips Semiconductors
Low-voltage avalanche regulator diodes
Product specification
PLVA400A series
FEATURES
• Very low dynamic impedance at
low currents: approximately 1⁄20 of
conventional series
• Hard breakdown knee
• Low noise: approximately 1⁄10 of
www.DataSheet4cUo.ncvomentional series
• Total power dissipation:
max. 400 mW
• Small tolerances of VZ
• 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 k
a
MAM239
Fig.1 Simplified outline (SOD27; DO-35) and symbol.
MARKING
TYPE NUMBER
PLVA450A
PLVA453A
PLVA456A
PLVA459A
PLVA462A
PLVA465A
PLVA468A
MARKING CODE
450APH
453APH
456APH
459APH
462APH
465APH
468APH
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
IF
IZRM
Ptot
PZSM
Tstg
Tj
continuous forward current
repetitive peak working current
total power dissipation
non-repetitive peak reverse power
dissipation
storage temperature
junction temperature
tp = 100 µs; δ = 10%
Ttp ≤ 55 °C; note 1
tp = 100 µs; Tj = 150 °C
Note
1. Lead length 8 mm.
MIN.
−
−
MAX.
250
250
400
30
UNIT
mA
mA
mW
W
−65 +200 °C
− 175 °C
1996 Apr 26
2
