LRC MMBD353LT1, MMBD355LT1, MMBD354LT1 Datasheet

Dual Hot Carrier Mixer Diodes

LESHAN RADIO COMPANY, LTD.

These devices are designed primarily for UHF mixer applications but are
suitable also for use in detector and ultra–fast switching circuits.

• Very Low Capacitance — Less Than 1.0 pF @ Zero Volts

• Low Forward Voltage — 0.5 Volts (Typ) @ I

= 10 mA

F

MAXIMUM RATINGS (EACH DIODE)

Rating Symbol Value Unit

Continuous Reverse Voltage V

R

7.0 V

CC

THERMAL CHARACTERISTICS

Characteristic Symbol Max Unit

Total Device Dissipation FR– 5 Board
T A = 25°C
Derate above 25°C 1.8 mW/°C
Thermal Resistance, Junction to Ambient R
Total Device Dissipation P
Alumina Substrate (2) T A = 25°C
Derate above 25°C 2.4 mW/°C
Thermal Resistance, Junction to Ambient R
Junction and Storage Temperature T J ,T

(1)

P

D

θJA

D

θJA

stg

225 mW

556 °C/W

300 mW

417 °C/W

–55 to +150 °C

DEVICE MARKING

MMBD352LT1 = M5G; MMBD353LT1 = M4F; MMBD354L T1 = M6H; MMBD355L T1 = MJ1

ELECTRICAL CHARACTERISTICS

Characteristic Symbol Min Ma x Unit

(TA=25°C unless otherwise noted) (EACH DIODE)

OFF CHARACTERISTICS

Forward Voltage
(I F = 10 mAdc)

Reverse Voltage Leakage Current I
(V R = 3.0 V) — 0.25
(V R = 7.0 V) — 10

Capacitance
(V R = 0 V, f = 1.0 MHz)

1. FR–5 = 1.0 x 0.75 x 0.062 in.

2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.

V

F

R

C — 1.0 pF

— 0.60 V

µA

MMBD352LT1
MMBD353LT1
MMBD354LT1
MMBD355LT1

3

1

2

1

ANODE

3
CATHODE/ANODE

MMBD352LT1

CASE 318–08, STYLE 11

SOT– 23 (TO–236AB)

1
CATHODE

3
CATHODE/ANODE

MMBD353LT1

CASE 318–08, STYLE 19

SOT– 23 (TO–236AB)

3
CATHODE

MMBD354LT1

CASE 318–08, STYLE 9

SOT– 23 (TO–236AB)

ANODE

3

MMBD355LT1

CASE 318–08, STYLE 12

SOT– 23 (TO–236AB)

2
CATHODE

2

ANODE

ANODE

1

2

ANODE

CATHODE
1

2

CATHODE

MMBD352. 353. 354. 355LT –1/2

LESHAN RADIO COMPANY, LTD.

MMBD352LT1 MMBD353LT1
MMBD354LT1 MMBD355LT1

TYPICAL CHARACTERISTICS

100

= 85°C

T

10

1.0

, FORWARD CURRENT (mA)

F

0.1

I

0.3 0.4 0.5 0.6 0.7 0.8

A

T A=–40°C

T

= 25°C

A

V F , FORWARD VOLTAGE (VOLTS)

Figure 1. Forward Voltage

1.0

0.9

0.8

0.7

, CAPACITANCE (pF)
C

0.6
0 1.0 2.0 3.0 4.0

V R , REVERSE VOLTAGE (VOLTS)

Figure 2. Capacitance

MMBD352. 353. 354. 355LT–2/2