Overview
The Micro SIM card connector DW-SM-61409-XXTR-01 is a top-mount, push-push SMT socket for compact devices that need dependable SIM performance. This Micro SIM card connector integrates a card-detect switch and shell-to-ground pads for reliable presence sensing and improved EMC. The SIM contact row uses 1.27 mm pitch, and the card slot width is 12.30 ± 0.10 mm. A smooth 5.50 mm eject travel (path tol. 0.25) protects cards during service, while lead coplanarity ≤ 0.10 mm supports high-yield SMT. The Micro SIM card connector is RoHS compliant and supplied tape-and-reel for automated lines.
Key features
- Push-push mechanism for quick insertion and controlled eject.
- Card-detect switch + shell ground for robust presence sensing.
- Low-profile, top-mount SMT footprint with defined keep-outs for slider travel.
- 1.27 mm pitch SIM contact row; 12.30 mm slot width to save PCB area.
- Multiple Au over Ni plating options to balance durability and cost.
- ≤ 0.10 mm coplanarity and tape-and-reel packaging for consistent assembly.
Dimensions, layout & materials
From the engineering print: dedicated switch moving area and slider path keep-outs; recommended PCB layout with pad sizes and tolerances; and a simple detect-switch circuit where CARD EJECT = ON and CARD MATING = OFF.
Materials
- Insulator/Slider: LCP UL94V-0
- Contacts: Copper alloy, Au over Ni (options below)
- Cover/Cam/Link: Stainless steel (cover Ni-plated)
- Spring: SWP-B spring steel
Electrical & plating options
Contact plating on mating area (Au over Ni): Flash / 3 µin / 5 µin / 15 µin / 30 µin.
- Field life & harsh environments → 15–30 µin.
- Cost-sensitive, low cycles → 3–5 µin.
- Controlled environments & prototypes → Flash possible.
The Micro SIM card connector’s shell pads should be via-stitched to ground within ~1–1.5 mm to lower inductance and improve ESD discharge.
Application examples
- Smart meters & AMI endpoints
- POS terminals and handhelds
- Cellular gateways/routers, M2M & IoT modules
- Industrial handhelds, scanners, PDAs
7 Essential PCB & integration tips
- Respect the mechanism path. Keep copper, paste, and components out of the switch moving area and slider travel.
- Ground the shell properly. Add multiple short vias from shell pads to the ground plane; this improves EMC for cellular designs.
- Stencil discipline. Follow the recommended footprint and stencil apertures; avoid over-paste on shell pads to maintain ≤ 0.10 mm coplanarity.
- Short, clean SIM routing. Keep CLK/IO/RST/VCC traces short, avoid noisy RF zones, and place ESD devices close to the connector.
- Debounce card detect. The detect output is Eject = ON / Mating = OFF; add 5–10 ms firmware debounce.
- Service access. Place the Micro SIM card connector where field techs can reach it without stressing the slider.
- Plating fit-for-purpose. Match Au thickness to cycle count and environment—upgrade to 15–30 µin for long field deployments.
Compliance & quality
The Micro SIM card connector is RoHS compliant and supports REACH SVHC and low-halogen needs. Production runs in Dragon Well’s ISO9001/ISO14001/IATF16949 certified facilities with automated inspection for contact coplanarity and shell burr control. For form-factor and electrical background, see ETSI TS 102 221 (UICC/SIM interface). For substance restrictions, review the EU RoHS Directive.
Quick spec snapshot
- Model: DW-SM-61409-XXTR-01
- Type: Micro SIM card connector, push-push, top-mount SMT
- Pitch (SIM contacts): 1.27 mm
- Card slot width: 12.30 ± 0.10 mm
- Eject travel: 5.50 mm (path tol. 0.25)
- Lead coplanarity: ≤ 0.10 mm
- Detect switch: Yes (CARD EJECT ON / CARD MATING OFF)
- Shell-to-ground: Yes
- Plating (Au over Ni): Flash / 3 / 5 / 15 / 30 µin
- Materials: LCP UL94V-0, Cu alloy contacts, stainless steel cover/cam/link, SWP-B spring
- Packaging: Tape-and-reel
- Compliance: RoHS, REACH, Low-halogen
Why Dragon Well
Founded in 2007, Dragon Well delivers nearly 20 years of connector design, tooling, and mass-production expertise. We provide rapid DFM, custom gold-thickness options, and buffer-stock programs to stabilize rollouts. If your next design needs a dependable Micro SIM card connector, our DW-SM-61409-XXTR-01 is engineered for repeatable SMT and long service life.
Order & RFQ
- Website: cndragonwell.com | dw-tek.com
- Model: DW-SM-61409-XXTR-01 — request samples, pricing, lead time, and PCB footprint files.
Connect with us
- LinkedIn: Dragon Well Electronics Co., Ltd
- Instagram: @dragonwell_electronics
- Facebook: Dragon Well Electronics
