The TE Connectivity 146893-1 is a 64-position receptacle from the Free Height (FH) series, designed to the IEEE 1386 / PMC mezzanine card standard. The 64-position count matches the standard PMC I/O connector footprint — the same count used on conduction-cooled and air-cooled mezzanine cards in telecom, military avionics, and industrial compute modules. The mated stacking heights of 8mm, 9mm, and 10mm give the board designer three board-to-board spacing options without changing the footprint.

TE 146893-1 Free Height FH Receptacle, 64 Pos, 1.00mm Pitch
TE Connectivity Free Height (FH) IEEE 1386, PMC receptacle, 64 positions, 2 rows, 0.039" (1.00mm) pitch, SMT, gold 30.0µin, 5.35mm height above board, mated stacking heights 8mm/9mm/10mm.
Specifications
| Parameter | Value |
|---|---|
| Series | Free Height (FH) IEEE 1386, PMC |
| Mounting | Surface Mount |
| Connector type | Receptacle, Outer Shroud Contacts |
| Height above board | 0.211\" (5.35mm) |
| Mated stacking heights | 8mm, 9mm, 10mm |
| Pitch | 0.039\" (1.00mm) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | Board Guide |
| Contact finish | Gold |
| Rows | 2 |
| Positions | 64 |
| Contact finish thickness | 30.0µin (0.76µm) |
Product details
Frequently asked questions
Is 146893-1 RoHS compliant?
No, the 146893-1 is listed as RoHS non-compliant. This means it contains substances above the EU RoHS thresholds — typically lead in the solder tails or plating. Verify your assembly's exemption status before specifying this part.
What stacking heights does 146893-1 support?
The 146893-1 supports mated stacking heights of 8mm, 9mm, and 10mm. The actual height depends on the mating header variant — the receptacle height above board is fixed at 0.211" (5.35mm), and the header height determines the final stack.