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1N5257B 1N5257B is a 33V Zener Diode from On Semiconductor with 500mW power rating and ±5% tolerance. It comes in a DO-35 through-hole package.
Mfr Part #:

1N5257B

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
1N5257B is a 33V Zener Diode from On Semiconductor with 500mW power rating and ±5% tolerance. It comes in a DO-35 through-hole package.
✓ Total Stock: 1,926 pcs
$ Price Range: $1.98

1N5257B Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
1,911 pcs
On Request
1911 pcs On Request 1 On Request On Request 10+ On Request On Request
Partservice ✓
Non-Authorised Inventory information
15 pcs
On Request
15 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

1N5257B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Lead Style
Medical Grade
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tolerance
Voltage
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1N5257B Description

Short technical summary and product information.

1N5257B is a 33V Zener diode from On Semiconductor designed for voltage regulation and reference applications. It offers a nominal zener voltage of 33V with a tolerance of ±5%.

 

Electrical characteristics include a maximum forward voltage of 1.2V at 200mA, maximum impedance (Zzt) of 58Ω, and reverse leakage current of 100nA at 25V. The device is rated for 500mW power dissipation and operates over a temperature range of -65°C to 200°C.

 

The device is packaged in a DO-204AH (DO-35) axial-leaded through-hole package, suitable for board-level assembly and prototyping.

1N5257B Quick Information

Product Type: Zener Diode
Series: 1N5257B
Canonical Name: Zener Diode, 33V, 500mW, DO-35, On Semiconductor
Subcategory: Single Zener Diode

1N5257B Compliance

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

1N5257B Estimated Pricing

Qty Low High
1+ $1.98 $1.98

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

1N5257B Features

  • Nominal zener voltage of 33V.
  • ±5% tolerance for voltage accuracy.
  • 500mW power dissipation rating.
  • DO-35 through-hole package.
  • Operating temperature range -65°C to 200°C.

1N5257B Applications

  • Used in voltage regulation circuits.
  • Ideal for voltage reference applications.
  • Suitable for overvoltage protection.
  • Common in low-power power supplies.

1N5257B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of 1N5257B?

33 V.

What is the tolerance of the zener voltage?

±5%.

What is the power dissipation rating?

500 mW.

What is the forward voltage of 1N5257B?

Maximum 1.2 V at 200 mA.

What is the maximum impedance (Zzt)?

58 Ω.

What is the reverse leakage current?

100 nA at 25 V.

What package does 1N5257B come in?

DO-35 (DO-204AH) axial through-hole package.

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