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Best Alternatives to FC31M2-32.768-NTLNNDTL

Package: SMD 3.2x1.5mmSuzhou Hangjing Elec & Tech Co., Ltd.ResonatorsNominal Frequency: 32.768 kHzCrystal Mode: FundamentalLoad Capacitance: 12.5 pFFrequency Tolerance: ±20ppm / ±30ppm / ±50ppmOperating Temperature: -40°C to +85°C

FC31M2-32.768-NTLNNDTL replacements should match 32.768kHz, 12.5pF load, ESR, package, and pinout. Closest options still need FAE review.

AI replacement insight

Electrical riskmedium

CL, ESR, and startup margin must match.

Package risklow

Kept parts share 3.2x1.5mm package.

Firmware risklow

Passive crystal; no protocol change.

Sourcing riskmedium

Lifecycle is not detailed.

Can it be replaced directly?

No verified pin-compatible replacement is proven from the provided fields.

Best replacement path

Start with FC31M2-32.768-NTLLLDT, then verify pinout and suffix code.

Main risk

Wrong load capacitance or unverified pinout can shift frequency or block startup.

Recommended alternatives

2
FC31M2-32.768-NTLLLDT package
FC31M2-32.768-NTLLLDT

HCI

Needs validationmedium risk

Same-family 32.768kHz 12.5pF crystal with matching package; pinout review is still required.

View details

Alternative comparison matrix

Feature / factorFC31M2-32.768-NTLNNDTLFC31M2-32.768-NTLLLDT3131M232768DTTLLLLAlt 3Compatibility / risk
PackageSMD 3.2x1.5mmSMD 3.2x1.5mmSMD 3.2x1.5mmSMD 3.2x1.5mm — same size; 3131M232768DTTLLLL: same size
Pinout2 pins2 pins2 pins2 pins — pin function not shown; 3131M232768DTTLLLL: pin function not shown
Application32.768kHz, 12.5pF32.768kHz, 12.5pF32.768kHz, 12.5pF32.768kHz, 12.5pF — same CL; 3131M232768DTTLLLL: same CL
Resistance<70kΩ ESR<70kΩ ESR<70kΩ ESR<70kΩ ESR — same limit; 3131M232768DTTLLLL: same limit
Temperature-40 to +85°C-40 to +85°C-40 to +85°C-40 to +85°C — same range; 3131M232768DTTLLLL: same range

Application & sourcing insights

Questions & answers

FC31M2-32.768-NTLLLDT is the closest listed match, but pinout and suffix details still need review.