TC1.33-1T-75X+ - Mini-Circuits

ISO 9001 ISO 14001 AS 9100 CERTIFIED

Mini-Circuits

P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661

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Notes: 1. Performance and quality attributes and conditions not expressly stated in this specification sheet are intended to be excluded and do not form a part of this specification sheet. 2. Electrical specifications

and performance data contained herein are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. 3. The parts covered by this specification sheet are subject to

Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard

Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp.

For detailed performance specs

& shopping online see web site

minicircuits.com

IF/RF MICROWAVE COMPONENTS

The Big Deal

• Excellent return loss, 23dB typical

• Highly accurate 75Ω� to 100Ω� balanced

transition

• Cost-effective design

Product Overview

This high-performance, low-cost transformer is ideal for use with push-pull ampliﬁ ers where balanced-to-

unbalanced RF signal transformation is required. It is an ideal match for the inputs of Mini-Circuits dual MMIC

ampliﬁ ers. When used in this conﬁ guration, the high phase and amplitude accuracy provides excellent IP2

and IP3 performance, making it ideal for use in 75Ω CATV return applications or any single-ended 75Ω to

balanced 50Ω application.

TC1.33-1T-75X+

Key Features

RF Transformer

Surface Mount

Feature Advantages

Wideband

Usable range of 3MHz to 500MHz makes this transformer suitable for multiple applications

and covers the entire spectrum of CATV return path applications.

Excellent phase and amplitude

performance

Typical amplitude unbalance of 0.5dB and phase unbalance of 3° in a 1dB bandwidth is

unmatched for a transformer in this price range.

DC isolation This feature enables the TC1 series to work in applications down to very low frequencies

and when isolation of the primary and secondary windings is required.

Highly accurate impedance matching The very accurate matching makes this product ideal for CATV applications running

parallel 75Ω single-ended signals into 100Ω circuits in a differential conﬁ guration.

Extremely low cost Mini-Circuits’s unique design approach enables a high-performance transformer to be

available in the market at a low cost for high-volume production.

Page 1

75Ω 3 to 500 MHz

CASE STYLE: AT1521

ISO 9001 ISO 14001 AS 9100 CERTIFIED

Mini-Circuits

P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661

The Design Engineers Search Engine Provides ACTUAL Data Instantly at

Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp.

For detailed performance specs

& shopping online see web site

minicircuits.com

IF/RF MICROWAVE COMPONENTS

FREQUENCY

(MHz)

INSERTION

LOSS

(dB)

INPUT

R. LOSS

(dB)

AMPLITUDE

UNBALANCE

(dB)

PHASE

UNBALANCE

(Deg.)

75Ω 3 to 500 MHz

RF Transformer

Surface Mount

TC1.33-1T-75X+

Maximum Ratings

Pin Connections

Features

• balanced to unbalanced transformation

• push-pull ampliﬁ ers

• impendance matching

• CATV

PRIMARY DOT 6

PRIMARY 4

SECONDARY DOT 1

SECONDARY 3

SECONDARY CT 2

• wideband, 3 to 500 MHz

• DC isolated

• good return loss

• excellent amplitude unbalance, 0.5 dB typ. and

phase unbalance, 3 deg typ. in 1 dB bandwidth

• plastic base with leads

• aqueous washable

Applications

Operating Temperature -40°C to 85°C

Storage Temperature -55°C to 100°C

RF Power 250mW

DC Current 30mA

Transformer Electrical Speciﬁ cations (TAMB=25°C)

REV. OR

M133746

TC1.33-1T-75X+

ED-13828/7

WP/CP/AM

120508

Page 2

Typical Performance Data

CASE STYLE: AT1521

PRICE:$2.19 ea. QTY (20)

$1.19 ea. QTY (100)

Outline Drawing AT1521 Ω

RATIO

(Secondary/Primary)

FREQUENCY

(MHz)

INSERTION LOSS* PHASE

UNBALANCE

(Deg.)

Typ.

AMPLITUDE

UNBALANCE

(dB)

Typ.

2 dB

MHz

1 dB

MHz

1 dB

bandwidth

2 dB

bandwidth

1 dB

bandwidth

2 dB

bandwidth

1.33 3-500 3-500 5-300 3 5 0.5 0.9

*Insertion Loss is referenced to mid-band loss, 0.5 dB typ.

Conﬁ g. A

INSERTION LOSS

0.0

0.4

0.8

1.2

1.6

0 100 200 300 400 500

FREQUENCY (MHz)

INSERTION LOSS (dB)

INPUT RETURN LOSS

5.0

10.0

15.0

20.0

25.0

30.0

35.0

0 100 200 300 400 500

FREQUENCY (MHz)

RETURN LOSS (dB)

Permanent damage may occur if any of these limits are exceeded.

3.00 0.72 20.21 0.03 0.05

5.00 0.60 22.88 0.03 0.08

10.00 0.52 26.09 0.02 0.17

50.00 0.49 29.53 0.00 0.67

100.00 0.50 29.06 0.05 1.30

200.00 0.55 26.79 0.25 2.48

300.00 0.61 24.51 0.56 3.37

400.00 0.69 22.74 0.96 4.07

450.00 0.74 21.90 1.18 4.37

500.00 0.79 21.14 1.44 4.62

Outline Dimensions ( )

inch

PCB Land Pattern

Suggested Layout,

Tolerance to be within

.002

Notes:

1. Case Material: Plastic

2. Termination Finish: Tin plate over Nickel plate.

3. Lead#1 identifier shall be located in the cross-hatched area shown, on bottom view.

Identifier may be either a molded or marked feature.

4. Top-Hat total thickness: .013 inches max.

A B C D E F

.150 .150 .160 .050 .040 .025

3.81 3.81 4.06 1.27 1.02 0.64

G H J K wt

.028 .065 .190 .030 grams

0.71 1.65 4.83 0.76 0.15

+RoHS Compliant

The +Suffix identifies RoHS Compliance. See our web site

for RoHS Compliance methodologies and qualifications

Available Tape and Reel

at no extra cost

Reel Size Devices/Reel

7” 20, 50, 100, 200, 500

13” 1000, 2000