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SZMMBZ5259BLT1G Zener diode with nominal 39V breakdown voltage, 225mW power dissipation, and ±5% tolerance. Surface mount package SOT-23-3.
Mfr Part #:

SZMMBZ5259BLT1G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with nominal 39V breakdown voltage, 225mW power dissipation, and ±5% tolerance. Surface mount package SOT-23-3.
Total Stock: 158,900 pcs
$ Price Range: $0.03 - $0.20

SZMMBZ5259BLT1G Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
158,900 pcs
158900 pcs On Request 1 On Request On Request On Request On Request On Request

SZMMBZ5259BLT1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
ESD Rating
Flammability Rating
Halogen Free
Impedance (Max) (Zzt)
Junction and Storage Temperature Range
Mounting Type
Operating Temperature
Power
Power Dissipation (Maximum @ on Alumina substrate, TA = 25 °C)
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance, Junction-to-Ambient (Nominal @ on Alumina substrate)
Thermal Resistance, Junction-to-Ambient (Nominal @ on FR -5 board)
Tolerance
Voltage
Zener Voltage

SZMMBZ5259BLT1G Description

Short technical summary and product information.

The SZMMBZ5259BLT1G is a 39V Zener diode from onsemi, part of the MMBZ52xxBLT1G series of voltage regulators. It offers a nominal Zener voltage of 39V with ±5% tolerance and a maximum power dissipation of 225mW on FR-5 board (300mW on Alumina substrate). The device features a maximum impedance (Zzt) of 80Ω and a forward voltage of 0.95V at 10mA. Reverse leakage current is limited to 100nA at 30V.

 

Designed for voltage regulation in space-constrained applications, this diode is suitable for cellular phones, handheld portables, and high-density PC boards. It has an ESD rating of Class 3 (>16kV) per Human Body Model, enhancing robustness in handling.

 

The device is housed in a SOT-23-3 surface mount package, with solderable terminations and UL 94 V-0 flammability rating. Operating temperature range is -65°C to 150°C. The SZ prefix indicates automotive qualification (AEC-Q101) and PPAP capability.

SZMMBZ5259BLT1G Quick Information

Product Type: Zener Diode
Series: SZMMBZ52xxBLT1G
Canonical Name: Zener Diode 39V 225mW SOT-23-3
Subcategory: Single Zener Diode

SZMMBZ5259BLT1G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

SZMMBZ5259BLT1G Estimated Pricing

Qty Low High
1+ $0.20 $0.20
10+ $0.12 $0.12
100+ $0.08 $0.08
500+ $0.06 $0.06
1,000+ $0.05 $0.05
3,000+ $0.04 $0.04
6,000+ $0.03 $0.03

Estimated market price range - modelled values for guidance only, not live distributor offers.

SZMMBZ5259BLT1G Features

  • Nominal Zener voltage of 39V.
  • Power dissipation 225mW on FR-5 board.
  • ±5% tolerance on Zener voltage.
  • Surface mount SOT-23-3 package.
  • ESD rating Class 3 (>16kV) HBM.

SZMMBZ5259BLT1G Applications

  • Voltage regulation in cellular phones.
  • Used in handheld portable devices.
  • Ideal for high-density PC boards.
  • Automotive applications (AEC-Q101).

SZMMBZ5259BLT1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of SZMMBZ5259BLT1G?

39V nominal.

What is the forward voltage?

0.95V maximum at 10mA.

What package is this device available in?

SOT-23-3 surface mount package.

What is the power dissipation rating?

225mW on FR-5 board, 300mW on Alumina substrate.

What is the tolerance on Zener voltage?

±5%.

Is this device RoHS compliant?

Yes, RoHS3 compliant and Pb-Free.

What is the operating temperature range?

-65°C to 150°C.

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