TST-112-04-T-D SAMTEC Connector (Other) In Stock
SAMTEC TST-112-04-T-D is a 24-position dual-row shrouded PCB header with 0.100" (2.54 mm) pitch and tin-plated contacts for cost-effective board interconnects. The polarizing shroud ensures correct cable orientation and protects contacts during mating. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- TST-112-04-T-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-112-04-T-D?
- 24-position dual-row shrouded header with 0.100" (2.54 mm) pitch providing polarized keyed mating for reliable error-free insertion
- Tin-plated contacts offer a cost-effective alternative to gold plating for lower-frequency signal and power applications
- Protective plastic shroud guards contacts from mechanical damage and enables single-motion IDC ribbon cable mating
What is TST-112-04-T-D used for?
The TST-112-04-T-D is used in industrial control modules, embedded processor boards, and consumer electronics requiring 24-pin polarized ribbon cable interconnects at the standard 0.100" pitch. Its tin-plated contacts make it a cost-effective solution for high-volume production where gold plating is not required for signal integrity. The shrouded housing also suits field-serviced equipment where maintenance technicians need a reliable connector that self-aligns during mating.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-112-04-T-D datasheet?
TST-112-04-T-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-112-04-T-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why might an engineer select the tin-plated TST-112-04-T-D over a gold-plated TST-112-05-G-D for a 24-pin interface?
The TST-112-04-T-D uses tin plating rather than gold on its 24 contacts, which reduces per-unit cost significantly in high-volume production. Tin plating is appropriate for signal interfaces operating below 100 MHz where the slightly higher initial contact resistance compared to gold is acceptable, and where the connector will see fewer than 50 mating cycles over the product's life. For applications with frequent reconnections or low-level analog signals, the gold-plated G variant is preferable, but the T suffix reduces BOM cost in price-sensitive consumer or industrial designs.
How many conductors of IDC ribbon cable does the TST-112-04-T-D accept, and what AWG range is supported?
The TST-112-04-T-D accommodates a 24-conductor IDC ribbon cable on the standard 0.100" (2.54 mm) pitch, compatible with 26 AWG or 28 AWG flat ribbon conductors typically used with IDC tooling. This covers signal currents up to approximately 1 A per contact at 28 AWG, which is adequate for digital logic signals at 3.3 V or 5 V supply levels. The shroud aligns the IDC housing automatically, reducing manual effort during cable assembly.
What PCB footprint does the TST-112-04-T-D require, and is it suitable for automated through-hole insertion?
The TST-112-04-T-D uses a dual-row through-hole footprint with 0.100" (2.54 mm) pitch across 12 positions per row for a total of 24 contacts, requiring a standard 0.040" drill diameter for the pins. This footprint is fully compatible with automated through-hole insertion equipment, which is common in high-volume PCB production facilities. The body dimensions follow the standard TST series outline, allowing engineers to use existing Samtec footprint libraries without custom land pattern creation.
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