Fairchild Zeners MMSZ5226B - MMSZ5257B Data Manual
Summary
This technical manual covers the specifications for the MMSZ5226B through MMSZ5257B series of surface-mount Zener diodes. Designed for engineers and electronics professionals, the guide provides absolute maximum ratings, electrical characteristics, and typical performance curves for these voltage-regulating components.
Page 1 Text Content
Zeners M SZ5226B - M SZ5257B
Zeners
MMSZ5226B - MMSZ5257B
Absolute Maximum Ratings * TA = 25°C unless otherwise noted Tolerance = 5% Symbol Parameter Value Units
PD Power Dissipation @25°C m W RθJA Thermal Resistance, Juncion to Ambient ** °C/W TSTG Storage Temperature Range -55 to +150 °C
TJ Operating Junction Temperture +150 °C * These ratings are limiting values above which the serviceability of the diode may be impaired.
** FR-4 or FR-5 = 3.5 × 1.5 inches using minimumrecommended land pads. SOD-123
Electrical Characteristics TA=25°C unless otherwise noted
VZ (V)
Device Mark ZZ (Ω) @ IZK (m A) ZZK (Ω) @ IZK (m A) IR(µA) @ VR (V)
Min. Typ. Max.
MMSZ5226B D1 3.135 3.3 3.465 1,600 0.25 1.0 MMSZ5227B D2 3.42 3.6 3.78 1,700 0.25 1.0 MMSZ5228B D3 3.705 3.9 4.095 1,900 0.25 1.0 MMSZ5229B D4 4.085 4.3 4.515 1,000 0.25 5.0 1.0 MMSZ5230B D5 4.465 4.7 4.935 1,900 0.25 5.0 2.0 MMSZ5231B E1 4.845 5.1 5.355 1,600 0.25 5.0 2.0 MMSZ5232B E2 5.32 5.6 5.88 1,600 0.25 5.0 3.0 MMSZ5233B E3 5.7 6.3 7.0 1,600 0.25 5.0 3.5 MMSZ5234B E4 5.89 6.2 6.51 7.0 1,000 0.25 5.0 4.0 MMSZ5235B E5 6.46 6.8 7.14 5.0 0.25 3.0 5.0 MMSZ5236B F1 7.125 7.5 7.875 6.0 0.25 3.0 6.0 MMSZ5237B F2 7.79 8.2 8.61 8.0 0.25 3.0 6.5 MMSZ5238B F3 8.265 8.7 9.135 8.0 0.25 3.0 6.5 MMSZ5239B F4 8.645 9.1 9.555 0.25 3.0 7.0 MMSZ5240B F5 9.5 10.5 0.25 3.0 8.0 MMSZ5241B H1 10.45 11.55 0.25 2.0 8.4 MMSZ5242B H2 11.4 12.6 0.25 1.0 9.1 MMSZ5243B H3 12.35 13.65 9.5 0.25 0.5 9.9 MMSZ5244B H4 13.3 14.7 9.0 0.25 0.1 MMSZ5245B H5 14.25 15.75 8.5 0.25 0.1 MMSZ5246B J1 15.2 16.8 7.8 0.25 0.1 MMSZ5247B J2 16.15 17.85 7.4 0.25 0.1 MMSZ5248B J3 17.1 18.9 7.0 0.25 0.1 MMSZ5249B J4 18.05 19.95 6.6 0.25 0.1 MMSZ5250B J5 6.2 0.25 0.1 MMSZ5251B K1 20.92 23.1 5.6 0.25 0.1 MMSZ5252B K2 22.8 25.2 5.2 0.25 0.1
MMSZ5253B K3 23.75 26.25 5.0 0.25 0.1
MMSZ5254B K4 25.65 28.35 4.6 0.25 0.1 MMSZ5255B K5 26.6 29.4 4.5 0.25 0.1 MMSZ5256B M1 28.5 31.5 4.2 0.25 0.1 MMSZ5257B M2 31.35 34.65 3.8 0.25 0.1 VF Foward Voltage = 0.9V Maximum @ IF = 10m A for all MMSZ5200 series
©2004 Fairchild Semiconductor Corporation MMSZ5226B - MMSZ5257B, Rev. E
Page Summary Contents For Fairchild Zeners MMSZ5226B - MMSZ5257B Data Manual
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 3 |
| File Size | 47.50 KB |
| Published | June 15, 2026 |
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Frequently Asked Questions
What is the maximum power dissipation of the MMSZ5226B - MMSZ5257B series at 25°C?
500 mW.
What is the maximum operating junction temperature for these zener diodes?
+150°C.
What is the tolerance of the zener voltage for this series?
5%.
What is the thermal resistance from junction to ambient for the SOD-123 package?
340 °C/W.