MMSZ5242BT1G/T3G

Zener Voltage Regulators

Manufacturer

onsemi

Overview

Part: MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series (onsemi)

Type: Zener Voltage Regulators

Key Specs:

Total Power Dissipation: 500 mW
Zener Reverse Voltage Range: 2.4 V to 110 V
Max Case Temperature for Soldering: 260°C for 10 Seconds
Junction and Storage

Features

500 mW Rating on FR-4 or FR-5 Board
Wide Zener Reverse Voltage Range 2.4 V to 110 V @ Thermal Equilibrium*
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
General Purpose, Medium Current
ESD Rating of Class 3 (> 16 kV) per Human Body Model
SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q101 Qualified and PPAP Capable
These are Pb-Free Devices

Electrical Characteristics

		IF
Symbol	Parameter
VZ	Reverse Zener Voltage @ IZT
IZT	Reverse Current
ZZT	Maximum Zener Impedance @ IZT	VZ VR
IZK	Reverse Current	IR VF IZT
ZZK	Maximum Zener Impedance @ IZK
IR	Reverse Leakage Current @ VR
VR	Reverse Voltage
IF	Forward Current
VF	Forward Voltage @ IF	Zener Voltage Regulator

5% TOLERANCE FG ELECTRICAL CHARACTERISTICS ( T_A = 25^°C unless otherwise noted, V_F = 0.9 V Max. @ I_F = 10 mA )

		Zener Voltage (Notes 3 and 4)			Zener Impedance (Note 5)			Leakage Cur- rent
	Device		V _Z (Volts)		@ I _ZT	T Z _ZT @ I _ZT Z _ZK @ I _ZK		I _R @ V _R
Device*	Marking	Min	Nom	Max	mA	Ω	Ω	mA
MMSZ5221BT1G	C1	2.28	2.4	2.52	20	30	1200	0.25
MMSZ5222BT1G	C2	2.38	2.5	2.63	20	30	1250	0.25
MMSZ5223BT1G	C3	2.57	2.7	2.84	20	30	1300	0.25
MMSZ5224BT1G	C4	2.66	2.8	2.94	20	30	1400	0.25
MMSZ5225BT1G	C5	2.85	3.0	3.15	20	29	1600	0.25
MMSZ5226BT1G	D1	3.14	3.3	3.47	20	28	1600	0.25
MMSZ5227BT1G	D2	3.42	3.6	3.78	20	24	1700	0.25
MMSZ5228BT1G	D3	3.71	3.9	4.10	20	23	1900	0.25
MMSZ5229BT1G	D4	4.09	4.3	4.52	20	22	2000	0.25
MMSZ5230BT1G	D5	4.47	4.7	4.94	20	19	1900	0.25
MMSZ5231BT1G	E1	4.85	5.1	5.36	20	17	1600	0.25
MMSZ5232BT1G	E2	5.32	5.6	5.88	20	11	1600	0.25
MMSZ5233BT1G	E3	5.70	6.0	6.30	20	7	1600	0.25
MMSZ5234BT1G	E4	5.89	6.2	6.51	20	7	1000	0.25
MMSZ5235BT1G	E5	6.46	6.8	7.14	20	5	750	0.25
						6
MMSZ5236BT1G	F1	7.13	7.5	7.88	20		500	0.25
MMSZ5237BT1G	F2	7.79	8.2	8.61	20	8	500	0.25
MMSZ5238BT1G	F3	8.27	8.7	9.14	20	8	600	0.25
MMSZ5239BT1G	F4	8.65	9.1	9.56	20	10	600	0.25
MMSZ5240BT1G	F5	9.50	10	10.50	20	17	600	0.25
MMSZ5241BT1G	H1	10.45	11	11.55	20	22	600	0.25
MMSZ5242BT1G/T3G	H2	11.40	12	12.60	20	30	600	0.25
MMSZ5243BT1G	H3	12.35	13	13.65	9.5	13	600	0.25
MMSZ5244BT1G	H4	13.30	14	14.70	9.0	15	600	0.25
MMSZ5245BT1G	H5	14.25	15	15.75	8.5	16	600	0.25
MMSZ5246BT1G	J1	15.20	16	16.80	7.8	17	600	0.25
MMSZ5247BT1G	J2	16.15	17	17.85	7.4	19	600	0.25
MMSZ5248BT1G	J3	17.10	18	18.90	7.0	21	600	0.25
MMSZ5249BT1G	J4	18.05	19	19.95	6.6	23	600	0.25
MMSZ5250BT1G	J5	19.00	20	21.00	6.2	25	600	0.25
MMSZ5251BT1G	K1	20.90	22	23.10	5.6	29	600	0.25
MMSZ5252BT1G	K2	22.80	24	25.20	5.2	33	600	0.25
MMSZ5253BT1G	KЗ	23.75	25	26.25	5.0	35	600	0.25
MMSZ5254BT1G/T3G	K4	25.65	27	28.35	4.6	41	600	0.25
MMSZ5255BT1G	K5	26.60	28	29.40	4.5	44	600	0.25
MMSZ5256BT1G	M1	28.50	30	31.50	4.2	49	600	0.25
MMSZ5257BT1G	M2	31.35	33	34.65	3.8	58	700	0.25
MMSZ5258BT1G/T3G	M3	34.20	36	37.80	3.4	70	700	0.25
MMSZ5259BT1G	M4	37.05	39	40.95	3.2	80	800	0.25
MMSZ5259BTTG MMSZ5260BT1G	M5	40.85	43	45.15	3.0	93	900	0.25
MMSZ5261BT1G	N1	44.65	47	49.35	2.7	105	1000	0.25
MMSZ5262BT1G	N2	48.45	51	53.55	2.5	125	1100	0.25
MMSZ5263BT1G	N3	53.20	56	58.80	2.2	150	1300	0.25
MMSZ5264BT1G	N4	57.00	60	63.00	2.1	170	1400	0.25
MMSZ5265BT1G	N5	58.90	62	65.10	2.0	185	1400	0.25
MMSZ5266BT1G	P1	64.60	68	71.40	1.8	230	1600	0.25
MMSZ5267BT1G	P2	71.25	75	78.75	1.7	270	1700	0.25
MMSZ5268BT1G	P3	77.90	82	86.10	1.5	330	2000	0.25
MMSZ5269BT1G	P4	82.65	87	91.35	1.4	370	2200	0.25
MMSZ5270BT1G	P5	86.45	91	95.55	1.4	400	2300	0.25
MMSZ5272BT1G/T3G	R2	104.5	110	115.5	1.1	750	3000	0.25

^*Includes SZ-prefix devices where applicable.

Nominal Zener voltage is measured with the device junction in thermal equilibrium at T_L = 30°C ±1°C. Z_ZT and Z_ZK are measured by dividing the AC voltage drop across the device by the ac current applied. The specified limits are for I_Z(AC) = 0.1 I_Z(dc) with the AC frequency = 1 kHz.

^{3. &}quot;B" Suffix Type numbers shown have a standard tolerance of ± 5% on the nominal Zener voltages.

2% TOLERANCE FG ELECTRICAL CHARACTERISTICS ( T_A = 25^°C unless otherwise noted, V_F = 0.9 V Max. @ I_F = 10 mA )

		Zener Voltage (Notes 6 and 7)			Zener Impedance (Note 8)			Leakage Cur- rent
	Device		V _Z (Volts)		@ I _ZT	Z _ZT @ I _ZT	Z _ZK (	@ I _ZK
Device*	Marking	Min	Nom	Max	mA	Ω	Ω	mA
MMSZ5226CT1G	TD	3.234	3.3	3.366	20	28	1600	0.25
MMSZ5231CT1G	TG	4.998	5.1	5.202	20	17	1600	0.25
MMSZ5232CT1G	TH	5.488	5.6	5.712	20	11	1600	0.25
MMSZ5245CT1G	TK	14.70	15	15.30	8.5	16	600	0.25
MMSZ5248CT1G	TL	17.64	18	18.36	7.0	21	600	0.25
MMSZ5250CT1G	TN	19.60	20	20.40	6.2	25	600	0.25
MMSZ5252CT1G	TQ	23.52	24	24.48	5.2	33	600	0.25
MMSZ5256CT1G	TW	29.40	30	30.60	4.2	49	600	0.25
MMSZ5258CT1G	TX	35.28	36	36.72	3.4	70	700	0.25

^"C" Suffix Type numbers shown have a standard tolerance of ±2% on the nominal Zener voltages. Nominal Zener voltage is measured with the device junction in thermal equilibrium at T_L = 30°C ±1°C. Z_ZT and Z_ZK are measured by dividing the AC voltage drop across the device by the ac current applied. The specified limits are for I_Z(AC) = 0.1 I_Z(dc) with the AC frequency = 1 kHz. *Includes SZ-prefix devices where applicable.

TYPICAL CHARACTERISTICS

Figure 1. Temperature Coefficients (Temperature Range – 55°C to +150°C)

Figure 2. Temperature Coefficients (Temperature Range – 55°C to +150°C)

Figure 3. Steady State Power Derating

Figure 4. Maximum Nonrepetitive Surge Power

Figure 5. Effect of Zener Voltage on Zener Impedance

Figure 6. Typical Forward Voltage

Absolute Maximum Ratings

Rating	Symbol	Max	Units
Total Power Dissipation on FR–5 Board, (Note 1) @ T _L = 75°C Derated above 75°C	P _D	500 6.7	mW mW/°C
Thermal Resistance, Junction-to-Ambient (Note 2)	R_{θ JA}	340	°C/W
Thermal Resistance, Junction-to-Lead (Note 2)	R_{θ JL}	150	°C/W
Junction and Storage Temperature Range	T _J , T _stg	-55 to +150	°C

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.

1. FR-5 = 3.5 × 1.5 inches, using the minimum recommended footprint.
1. Thermal Resistance measurement obtained via infrared Scan Method.

SOD-123 CASE 425 STYLE 1

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
MMSZ5242BT1G	onsemi	SOD-123

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Get structured datasheet data via API

Get started free