TMO-4-1+
1:4 XFMR, 0.2 - 350 MHZ, 50
Quick Answer: TMO-4-1+ is a Mini-Circuits hermetic plug-in 1:4 core-and-wire RF transformer specified for 0.2 MHz to 350 MHz.
- Manufacturer
- Mini-Circuits
- Product Category
- RF Baluns
- Package
- 8-DIP Module
- Stock
- 534 pcs
- Availability
- Current quantity subject to confirmation.
Product Attributes
| Manufacturer | Mini-Circuits |
|---|---|
| Product Category | RF Baluns |
| Frequency Range | 200kHz ~ 350MHz |
| Impedance - Unbalanced/Balanced | 1:4 |
| ion Loss (Max) | 3.0dB |
| Min Qty | 10 |
| Mounting Type | Through Hole |
| Package | Bulk |
| Product status | Active |
| Datasheet | View Datasheet PDF |
Procurement Snapshot
Key supply and purchasing information for TMO-4-1+.
Why Source from Antrex Electronics?
Independent distribution support for verified sourcing, inspection and international procurement requirements.
Independent Distribution Support
Shortage, obsolete and hard-to-find component sourcing for production and procurement requirements.
Traceability Review
Label, lot, date code and available supply-chain documentation can be reviewed before order confirmation.
Inspection & Testing
Visual inspection, X-ray and third-party testing support can be arranged when required.
Global Procurement Support
Support for OEM, EMS, distributors and international sourcing requirements across individual parts and BOM projects.
Credentials & Verification Support
Quality controls, traceability review and inspection support for electronic component sourcing.
Detailed Description for TMO-4-1+
Product Overview
TMO-4-1+ is a Mini-Circuits hermetic plug-in 1:4 core-and-wire RF transformer specified for 0.2 MHz to 350 MHz. The 1:4 ratio provides a large impedance step while retaining transformer isolation and balanced/unbalanced conversion.
Its frequency range covers lower IF, HF, VHF and part of the lower-UHF spectrum, while the hermetic case is suited to military and high-reliability assemblies. This model is a plug-in component rather than an SMD transformer, so lead pattern, height and case grounding must match the existing board.
Key Features
- Manufacturer: Mini-Circuits
- Part Number: TMO-4-1+
- Product Category: RF Balun / RF Transformer
- Device Type: hermetic plug-in 1:4 core-and-wire RF transformer
- Frequency Range: 0.2 MHz to 350 MHz
- System / Port Impedance: 50 Ω system
- Impedance Ratio: 1:4
- Insertion Loss: Insertion loss referenced to 0.5 dB typical mid-band loss
- RF Power: 0.25 W
- DC Current: 30 mA
- Package / Case: Hermetic plug-in case
- Mounting Type: Through-hole / plug-in
Applications
- Military and high-reliability RF equipment
- HF/VHF impedance matching and balanced amplifier coupling
- Legacy instrumentation and receiver assemblies
Quality & Sourcing
Antrex Electronics can support sourcing of TMO-4-1+ for production, repair and shortage requirements. Incoming inspection should compare the exact ordering code, operating band, impedance relationship, package or connector configuration and any center-tap or suffix-specific mechanical details. Parts from the same transformer family may not be interchangeable when the ratio, port impedance, lead style or installed geometry changes.
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