TBA 2-1221 Traco Power Power Supply (Other) In Stock
Traco Power TBA 2-1221 is a 2-watt industrial DC/DC converter in a compact SIP-7 encapsulated package featuring ±10% input voltage tolerance, dual ±12 V output, and built-in short circuit protection. It delivers unregulated isolated power conversion suitable for instrumentation, industrial control, and telecommunications equipment designs.
- Manufacturer
- Traco Power
- Package
- Other
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TBA 2-1221 Datasheet PDF
- Category
- Power Supply
- Price
- From $3.2700(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2 W isolated DC/DC converter with 12 V nominal input and dual ±12 V unregulated output
- ±10% wide input voltage range accommodates real-world industrial supply variations
- Built-in short circuit protection prevents damage under fault conditions without external components
- Compact SIP-7 encapsulated package simplifies PCB layout and reduces board footprint
- Unregulated output suitable for cost-sensitive industrial and instrumentation power rail applications
- Designed for industrial environments with robust encapsulation for environmental protection
Applications
The TBA 2-1221 is used in industrial control systems, field instruments, and telecommunications equipment that require compact, isolated dual ±12 V power conversion from a 12 V bus. Its short circuit protection and wide ±10% input tolerance make it reliable in harsh electrical environments where input voltage transients are common.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and output voltage does the TBA 2-1221 support in industrial power designs?
The TBA 2-1221 accepts a 12 V nominal input with a ±10% tolerance, covering an input range of approximately 10.8 V to 13.2 V. It provides dual ±12 V unregulated output at a combined 2 W power rating, making it suitable for operational amplifier and analog signal conditioning power rails in industrial electronics.
How does the short circuit protection on the TBA 2-1221 benefit field-deployed instrumentation designs?
The built-in short circuit protection on the TBA 2-1221 prevents damage to both the converter and downstream circuitry if an output fault occurs, eliminating the need for external protection components. This is especially valuable for field instruments and sensors operating in unattended environments where fault conditions must be survived without component replacement.
What does the SIP-7 package of the TBA 2-1221 mean for PCB footprint and through-hole assembly compatibility?
The SIP-7 (Single Inline Package, 7-pin) format of the TBA 2-1221 uses through-hole leads on a standard 0.1 inch (2.54 mm) pitch, occupying a small PCB footprint while enabling secure vertical mounting. This through-hole package is compatible with wave soldering and hand-assembly processes, and the encapsulated body provides mechanical protection for the internal transformer and converter circuitry.
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Why Buy from FindMyChip
About Traco Power
Traco Power is a leading electronic component manufacturer. FindMyChip sources Traco Power ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.6300 | $3.63 |
| 30+ | $3.3600 | $100.80 |
| 50+ | $3.2700 | $163.50 |
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