SIM Card Connector Push-Push Top Mount Height 1.80mm
1.85mm Mini SIM card connector
Press to lock, press again to eject
A 1.27mm pitch, 6-pin Mini SIM card connector in a top mount, push-push design.
- 1.85mm mounted height
- 1.27mm terminal pitch
- 6 pins
- 10,000 cycles
Engineer reply within 1 working day · RoHS compliant · Custom options available
A card connector is invisible — until it fails
Connector failures are rarely dramatic. They are a few milliohms of drift, a lifted pad, a card that reads intermittently in a hot car.
The card jams or won't pop out after some use
The ejector is the part of a push-push socket that fails first. A reliable cam-and-spring design keeps every press stroke consistent for a crisp eject across 10,000 insertion cycles.
Data drops at speed, card not detected
Gold-plated terminals (≥0.025 µm) hold contact resistance to ≤30 mΩ with tight coplanarity control, keeping high-speed signals stable through humidity and thermal cycling.
Reflow warps the insulator, pads lift
An LCP insulator takes lead-free reflow without deformation; the stainless-steel shell keeps the frame flat; terminals are coplanarity-controlled to ±0.05 mm.
Card detection fails after a few insertions
A reliable detect switch guarantees card detection, backed by the retention structure, for 10,000 insertion cycles.
Every parameter, translated into a design decision
A datasheet lists values. A specification explains what each value controls. Final tolerances, plating thickness and acceptance criteria are confirmed on the 2D drawing and datasheet.
Mechanical
- Mounting type
- Top mount
- Mounted height
- 1.85mm
- Terminal pitch
- 1.27mm
- Number of pins
- 6
- Mechanism
- Push-push (ejector)
- Terminal coplanarity
- ±0.05 mm
Electrical
- Rated current
- 0.5 A
- Rated voltage
- 500 V
- Contact resistance
- ≤30 mΩ
- Insulation resistance
- 1,000 MΩ
- Transfer rate
- Low-speed signal
- Durability
- 10,000 cycles
Materials & plating
- Insulator
- LCP
- Terminals
- Phosphorous Bronze · gold ≥0.025 µm
- Shell
- Stainless Steel
- Process
- Lead-free reflow compatible
- Card type
- SIM card
Environment & ordering
- Operating temperature
- -45 ~ 80°C
- RoHS
- Compliant
- Part number
- SM180-T1250-41
- Sampling lead time
- 7 days
- Sample policy
- Free samples
Four decisions that keep the card reading
Every structural decision keeps the card reading and held in place.
Same card, multiple mechanical answers
Same card, same interface — the family offers different height and mechanism combinations. Most mistakes are the right connector in the wrong stack-up.
| Model | Height | Mechanism | Mounting | Choose it when |
|---|---|---|---|---|
| SM180-T1251-01 | 1.80mm | Push-pull | Top mount | Push-pull |
| KF016-L0012-32 | 3.00mm | Tray | Top mount | Tray |
| SM180-T5153-02 | 1.80mm | Push-push | Top mount | Push-push |
| SM180-T6153-01 | 1.80mm | Push-push | Top mount | Push-push |
| SM180-T5153-01 | 1.80mm | Push-push | Top mount | Push-push |
| SM190-T6250-01 | 1.90mm | Hinge | Top mount | Hinge |
| SM180-T1250-41This page | 1.85mm | Push-push | Top mount | Push-push |
| SM185-T1251-12 | 1.85mm | Push-push | Top mount | Push-push |
| SM185-T1250-02 | 1.85mm | Push-push | Top mount | Push-push |
| SM185-T1131-50 | 1.85mm | Push-push | Top mount | Push-push |
| SM185-T1131-32 | 1.85mm | Push-push | Top mount | Push-push |
Built for products that get carried, dropped and used daily
Wherever the card is a user-accessible medium, retention and contact stability matter more than price.
Everything your mechanical engineer needs
Frequently asked questions
What is the difference between Mini / Micro / Nano SIM sockets?
Card size: Mini SIM is largest, Nano SIM smallest. Socket and tray dimensions follow suit, so the choice must match your device slot; the three are not interchangeable.
Does the SIM socket support hot-plug?
Most SIM sockets support hot-plug with a card-detect pin, so the device recognizes the card immediately. Confirm in the datasheet.
Is it reflow compatible?
Yes. SMT sockets use an LCP insulator and coplanarity-controlled terminals for standard lead-free reflow; the exact profile is in the datasheet and drawing.
Can you cross-reference an imported brand?
Send the part number and drawing. We compare pad layout, height, pitch and retention, then confirm drop-in or layout-change before sampling.
What is the minimum order and lead time?
Samples are free, sampling takes 7 days, and volume production is 7–15 days. MOQ and lead time are confirmed with the quotation; zero-MOQ trial runs are available.
Send your stack-up. Get a drawing, a sample and a straight answer.
Tell us the product thickness, card type, annual volume and the part you are replacing (if any). An engineer replies within one working day with the right model, the drawing you need, and what we would change in your layout — if anything.
Mention part number SM180-T1250-41 for the fastest reply.
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