Surface Mount Limiter Diode

The CLA4608-085LF is a surface mountable, low capacitance silicon PIN limiter diode designed as a shunt connected PIN diode for high power limiter applications from 10 MHz to over 6 GHz.

Maximum resistance at 10 mA is 1.2 Ω and maximum capacitance at 38 V is 0.65 pF. The combination of low junction capacitance, low parasitic inductance, low thermal resistance, and nominal 7 μm I-region width, makes the CLA4608-085LF useful in large signal limiter applications. The threshold level is +20 dBm, nominal.


Product LifecycleIn Production
RF Test Frequency (GHz)1
Typical Insertion Loss (dB) Pin = 0 dBm0.2
Typical Threshold Level (dBm)20
Maximum Saturated Power (Watts)5
VB IR = 10 µA (V)180 Min.
I Region Thickness (µm) Nominal7
CT (pF) 0 V, F=1 MHz
CT (pF) 0 V, F=1 GHz
CT (pF) 6 V, F=1 MHz
CT (pF) 30 V, F=1 MHz0.60 Typ.
RS IF = 10 mA F = 100 MHz (Ω)1.2 Max.
Carrier Lifetime TL (ns) IF=10 mA100 Typ.
Package (mm)2 x 2


  • Low thermal resistance: 29 °C/W
  • Typical threshold level: +20 dBm
  • Low capacitance: 0.60 pF
  • Low profile, ultra-miniature QFN (3-pin, 2 x 2 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

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