STMM-121-02-G-D-SM SAMTEC Connector (Other) In Stock
SAMTEC STMM-121-02-G-D-SM is a 2.00 mm pitch shrouded terminal strip with 42-position dual-row male contacts, gold-over-nickel termination, and square pin style. Body measures 1.88 inch long; available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- STMM-121-02-G-D-SM Datasheet PDF
- Category
- Connector
- Price
- From $3.4464(MOQ 12)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STMM-121-02-G-D-SM?
- 42-position dual-row (21x2) shrouded board connector at 2.00 mm pitch with 1.88 inch body length for extended high-density cable-to-board interfaces
- Gold-over-nickel barrier termination finish ensures long-term corrosion resistance and reliable soldering adhesion in demanding environments
- Rectangular contact pattern with square pin style (SQ PIN-SKT) compatible with both single-ended and socket cable mates for flexible system integration
What is STMM-121-02-G-D-SM used for?
The STMM-121-02-G-D-SM is ideal for industrial automation and embedded control platforms where a 42-pin 2.00 mm pitch cable-to-board interface is needed along a 1.88 inch connector span. Its gold-over-nickel termination makes it well-suited for high-reliability applications such as medical equipment and aerospace ground support systems. The shrouded housing protects male contacts against mechanical damage during frequent cable mating cycles in field-deployed environments.
What are the specifications of STMM-121-02-G-D-SM?
| YTEOL | 8.4 |
| Body Breadth | 0.257inch |
| Body Depth | 0.24inch |
| Body Length | 1.88inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Termination | Gold (Au) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| Filter Feature | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e4 |
| Mating Contact Pitch | 0.078inch |
| Mating Contact Row Spacing | 0.078inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | GUIDE SLOT |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 4.66mm |
| Plating Thickness | 20u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 3A |
| Reference Standard | UL |
| Terminal Pitch | 2mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 42 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Malaysia, USA |
Where can I find the STMM-121-02-G-D-SM datasheet?
STMM-121-02-G-D-SM Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for STMM-121-02-G-D-SM?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the body dimensions and pin count of the STMM-121-02-G-D-SM?
The STMM-121-02-G-D-SM has a body length of 1.88 inch, breadth of 0.257 inch, and depth of 0.24 inch, housing 42 male pins in a dual-row (21x2) layout at 2.00 mm pitch. This extended body length accommodates high circuit counts while keeping the connector footprint narrow for space-constrained PCB designs.
Why choose the gold-over-nickel termination on STMM-121-02-G-D-SM over a tin termination option?
Gold over nickel provides superior oxidation resistance compared to tin, maintaining low contact resistance over the solder joint's lifetime even in humid or thermally cycled environments. For the 42 termination pads at 2.00 mm pitch, this finish ensures consistent solderability during wave or reflow processes and is preferred in high-reliability PCB assemblies where rework is costly.
Which cable mate types are compatible with the STMM-121-02-G-D-SM for a 42-circuit harness?
The STMM-121-02-G-D-SM uses a square pin (SQ PIN-SKT) contact style at 2.00 mm pitch, compatible with SAMTEC's discrete wire cable mates designed for 42 circuits. Mating options typically support wire gauges from 26 AWG to 30 AWG and can carry signal currents up to approximately 2 A per contact, suitable for multi-signal harness assemblies in industrial controllers.
Related Guides
How to Choose an Indicator LED: TLMG1100-GS08 Selection Guide
Select TLMG1100-GS08 and evaluate four indicator LED candidates through optical, electrical, footprint, and sourcing checks.
Nov 5, 2026
150141YS73100 Yellow LED Indicator Design and Validation Guide
Design and validate a 150141YS73100 yellow indicator with current-limit calculations, GPIO checks, PWM control, and enclosure visibility tests.
Nov 5, 2026
How to Choose an LMG1020YFFR GaN Gate Driver: Selection and Sourcing Guide
Compare LMG1020 and LMG1210 circuit roles, gate-drive requirements, ordering codes, and sourcing evidence before approving a GaN driver.
Nov 4, 2026
150141YS73100 LED Selection and Procurement Guide
Evaluate 150141YS73100 and four related LEDs using optical, electrical, mechanical, and sourcing checks before production approval.
Nov 4, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 12+ | $11.5558 | $138.67 |
| 50+ | $10.0600 | $503.00 |
| 100+ | $7.8000 | $780.00 |
| 500+ | $6.5373 | $3268.68 |
| 1000+ | $5.0563 | $5056.29 |
| 2000+ | $3.4464 | $6892.86 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector