Notes:
• Denotes 75 Ohm model, for coax connector models 75 Ohm BNC connectors are standard.
• Internal load dissipation: 0.375 Watt.
• Matched power rating: 1 Watt.
• General Quality Control Procedures and Environmental Specifications are given in Mini-Circuits Guarantees Quality.
Hi-Rel, MIL description are given in Hi-Rel and MIL
• Prices and Specifications subjects to change without notice.

ZB4PD1-500-75   4 Way-0°
Frequency
MHz		 Isolation, dB Insertion Loss, dB
Above 6.0dB		 Phase
Unbalance
Degrees		 Amplitude
Unbalance, dB
fL - fU L
Typ.  Min.		 M
Typ.  Min.		 U
Typ.  Min.		 L
Typ.  Max.		 M
Typ.  Max.		 U
Typ.  Max.		 L
Max.		 M
Max.		 U
Max.		 L
Max.		 M
Max.		 U
Max.
5.00-500 34  20 34  20 30  20 0.45  1.00   0.60  0.90   1.00  1.50   1.00 3.00 6.00   0.20  
L=low range(fL to 10fL)  M=mid range(10fL to fU/2)  U=upper range(fU/2 to fU)

Pin Connections
Port Sum Port Port 1 Port 2 Port 3 Port 4
bh S 1 2 3 4



Case Style - UU188 (inch,mm )   weight: 260 grams.
A B C D E F G H J
3.50
88.900		 2.13
54.102		 .88
22.352		 .150
3.810		 3.350
85.090		 1.06
26.924		 .125
3.175		 1.75
44.450		 .44
11.176
K L M N P Q R S T
.89
22.606		                
Tolerance: .x ± .1  .xx ± .03  .xxx ± .015 inch.
Material and Finish:
    Case material: aluminum alloy. Finish: iridite per MIL-C-5541
Connectors:
    Connectors: Please specify female type N or SMA.

FREQ
(MHz)		 Insertion Loss Amplitude
Unbalance
(dB)		 Isolation Phase
Unbalance
(Degrees)		 FREQ
(MHz)		 VSWR
S		 VSWR
1		 VSWR
2		 VSWR
3		 VSWR
4
(dB)
S-1		 (dB)
S-2		 (dB)
S-3		 (dB)
S-4		 (dB)
1-2		 (dB)
2-3		 (dB)
3-4
5.000 6.49 6.49 6.43 6.50 0.060 28.81 58.18 31.62 0.30 5.00 1.14 1.22 1.22 1.20 1.20
7.000 6.45 6.43 6.36 6.46 0.090 30.28 55.93 33.15 0.16 7.00 1.11 1.18 1.18 1.16 1.16
9.000 6.41 6.41 6.37 6.40 0.040 31.23 54.57 34.07 0.18 9.00 1.09 1.15 1.15 1.14 1.14
11.00 6.38 6.38 6.34 6.38 0.040 31.96 53.00 34.63 0.20 11.00 1.08 1.14 1.14 1.12 1.12
13.00 6.38 6.38 6.34 6.39 0.040 32.46 52.62 34.96 0.18 13.00 1.08 1.13 1.13 1.12 1.12
15.00 6.36 6.39 6.32 6.36 0.070 32.83 51.32 35.04 0.15 15.00 1.07 1.12 1.12 1.11 1.11
20.00 6.37 6.37 6.32 6.38 0.060 33.33 49.58 35.13 0.19 20.00 1.07 1.11 1.11 1.10 1.10
25.00 6.38 6.38 6.32 6.38 0.070 33.54 48.21 35.15 0.09 25.00 1.06 1.11 1.11 1.10 1.10
30.00 6.39 6.38 6.33 6.37 0.050 33.64 47.14 35.00 0.16 30.00 1.06 1.11 1.11 1.10 1.10
35.00 6.38 6.38 6.32 6.38 0.060 33.73 45.79 34.88 0.27 35.00 1.06 1.11 1.11 1.10 1.10
40.00 6.42 6.39 6.34 6.40 0.080 33.62 44.86 34.71 0.16 40.00 1.06 1.11 1.11 1.10 1.10
45.00 6.41 6.41 6.36 6.40 0.050 33.54 44.20 34.55 0.21 45.00 1.07 1.11 1.11 1.10 1.10
50.00 6.40 6.41 6.35 6.41 0.060 33.40 43.21 34.34 0.02 50.00 1.07 1.11 1.11 1.10 1.10
55.00 6.43 6.43 6.38 6.43 0.050 33.36 42.63 34.21 0.24 55.00 1.07 1.11 1.11 1.10 1.11
60.00 6.43 6.43 6.36 6.42 0.070 33.19 41.95 34.01 0.17 60.00 1.07 1.11 1.11 1.11 1.11
65.00 6.42 6.43 6.36 6.41 0.060 33.09 41.33 33.94 0.14 65.00 1.08 1.11 1.11 1.11 1.11
70.00 6.43 6.41 6.36 6.42 0.070 33.09 40.71 33.77 0.31 70.00 1.08 1.11 1.11 1.11 1.11
75.00 6.42 6.43 6.36 6.43 0.070 32.86 40.33 33.67 0.13 75.00 1.08 1.11 1.11 1.11 1.11
80.00 6.44 6.44 6.38 6.45 0.070 32.82 39.77 33.53 0.23 80.00 1.08 1.11 1.11 1.11 1.11
85.00 6.44 6.45 6.39 6.44 0.060 32.69 39.31 33.43 0.18 85.00 1.09 1.11 1.11 1.11 1.11
90.00 6.48 6.47 6.39 6.44 0.090 32.62 38.87 33.31 0.28 90.00 1.09 1.11 1.11 1.11 1.11
95.00 6.46 6.46 6.41 6.46 0.050 32.57 38.45 33.17 0.44 95.00 1.09 1.12 1.11 1.11 1.11
100.00 6.47 6.46 6.42 6.46 0.050 32.42 38.02 33.06 0.23 100.00 1.09 1.12 1.12 1.11 1.11
110.00 6.46 6.45 6.41 6.46 0.050 32.29 37.31 32.87 0.45 110.00 1.10 1.12 1.12 1.11 1.11
120.00 6.49 6.47 6.40 6.47 0.090 32.13 36.65 32.70 0.50 120.00 1.11 1.12 1.12 1.11 1.11
130.00 6.49 6.47 6.40 6.49 0.080 32.10 36.06 32.56 0.60 130.00 1.11 1.12 1.12 1.11 1.11
140.00 6.50 6.50 6.41 6.50 0.090 32.00 35.46 32.43 0.66 140.00 1.12 1.12 1.12 1.11 1.12
150.00 6.49 6.51 6.45 6.50 0.060 31.86 34.91 32.35 0.42 150.00 1.13 1.12 1.12 1.11 1.12
160.00 6.49 6.49 6.42 6.50 0.080 31.78 34.42 32.19 0.56 160.00 1.13 1.13 1.12 1.12 1.12
170.00 6.51 6.52 6.44 6.52 0.080 31.77 34.02 32.06 0.59 170.00 1.14 1.13 1.13 1.12 1.12
180.00 6.52 6.51 6.45 6.51 0.070 31.74 33.60 32.10 0.67 180.00 1.15 1.14 1.13 1.13 1.13
190.00 6.53 6.52 6.49 6.53 0.040 31.76 33.20 32.00 0.67 190.00 1.15 1.14 1.14 1.13 1.13
200.00 6.55 6.55 6.49 6.54 0.060 31.76 32.86 32.07 0.67 200.00 1.16 1.15 1.15 1.14 1.14
220.00 6.55 6.56 6.52 6.58 0.060 31.86 32.28 32.12 0.90 220.00 1.17 1.17 1.16 1.16 1.16
240.00 6.57 6.60 6.55 6.63 0.090 32.00 31.63 32.24 0.95 240.00 1.18 1.19 1.18 1.18 1.17
250.00 6.57 6.59 6.54 6.60 0.060 32.11 31.29 32.30 0.81 250.00 1.19 1.20 1.19 1.19 1.18
300.00 6.64 6.64 6.60 6.63 0.050 33.12 30.19 33.42 1.00 300.00 1.23 1.25 1.24 1.23 1.23
350.00 6.66 6.68 6.64 6.68 0.040 35.23 29.24 35.85 1.14 350.00 1.25 1.28 1.28 1.27 1.26
400.00 6.77 6.79 6.77 6.78 0.020 38.83 28.58 41.08 1.42 400.00 1.26 1.33 1.33 1.32 1.31
450.00 6.85 6.87 6.81 6.82 0.060 40.85 28.08 45.31 1.58 450.00 1.29 1.40 1.39 1.38 1.36
500.00 6.96 6.98 6.93 6.94 0.050 35.23 27.72 35.85 2.09 500.00 1.34 1.41 1.40 1.39 1.37