# Small Signal Diode, Single, 100 V, 500 mA, 1 V, 4 ns, 4 A

![Product image](https://novapart.co/image/farnell:2453723/)

**URL**: https://novapart.co/products/1N4149TR/small-signal-diode-single-100-v-500-ma-1-4-ns-a
**SKU**: 1N4149TR
**Manufacturer**: ONSEMI
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Small Signal Diodes
**Price**: €0.0200
**Stock**: 10+
**Lead Time**: 64 days (indicative)

## Description

Diode Configuration:Single; Repetitive Reverse Voltage Vrrm Max:100V; Forward Current If(AV):500mA; Forward Voltage VF Max:1V; Reverse Recovery Time trr Max:4ns; Forward Surge Current

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 2Pins |
| Product Range | 1N4149 |
| Qualification | - |
| Diode Mounting | Through Hole |
| Diode Case Style | DO-204AH |
| Diode Configuration | Single |
| Forward Voltage Max | 1V |
| Forward Surge Current | 4A |
| Reverse Recovery Time | 4ns |
| Average Forward Current | 500mA |
| Operating Temperature Max | 175°C |
| Repetitive Peak Reverse Voltage | 100V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2453723/)

## December 2004 

## **1N4149 Small Signal Diode** 

**==> picture [25 x 7] intentionally omitted <==**

**----- Start of picture text -----**<br>
DO-35<br>**----- End of picture text -----**<br>


Color Band Denotes Cathode 

## **Absolute Maximum Ratings *** Ta = 25°C unless otherwise noted 

|**Symbol**|**Parameter**||**Value**|**Unit**|
|---|---|---|---|---|
|VRRM|Maximum Repetitive Reverse Voltage||100|V|
|IF(AV)|Average Rectified Forward Current||500|mA|
|IFSM|Non-repetitive Peak Forward Surge Current<br>Pulse Width = 1.0 second<br>Pulse Width = 1.0 microsecond||1.0<br>4.0|A<br>A|
|TSTG|Storage Temperature Range||-65 to +200|°C|
|TJ|Operating Junction Temperature||175|°C|



- These ratings are limiting values above which the serviceability of the diode may be impaired. 

## **NOTES:** 

- 1) These ratings are based on a maximum junction temperature of 200 degrees C. 

2) These are steady limits. The factory should be consulted on applications involving pulsed or low duty cycle operations. 

## **Thermal Characteristics** 

|**Symbol**|**Parameter**||**Value**|**Unit**|
|---|---|---|---|---|
|PD|Power Dissipation||500|mW|
|RθJA|Thermal Resistance, Junction to Ambient||300|°C/W|



## **Electrical Characteristics** TC = 25°C unless otherwise noted 

||**Symbol**|**Parameter**||**Conditions**|**Min.**|**Max**|**Units**|
|---|---|---|---|---|---|---|---|
|VR||Breakdown Voltage|IR= 5µA||75||V|
||||IR= 100µA||100||V|
|VF||Forward Voltage|IF= 10mA|||1.0|V|
|IR||Reverse Leakage|VR= 20V|||25|nA|
||||VR= 20V, TA= 150°C|||50|µA|
|CT||Total Capacitance|VR= 0, f = 1.0MHz|= 0, f = 1.0MHz||2|pF|
|trr||Reverse Recovery Time|IF= 10mA, V|= 10mA, VR= 6.0V||4|ns|
||||RL= 100Ω, Irr= 1mA|||||



**1** 

©2004 Fairchild Semiconductor Corporation 1N4149 Rev. A 

www.fairchildsemi.com 

## **TRADEMARKS** 

The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. 

|ACEx™|FAST|ISOPLANAR™|Power247™|Stealth™|
|---|---|---|---|---|
|ActiveArray™|<br>FASTr™|LittleFET™|PowerEdge™|SuperFET™|
|<br>Bottomless™|FPS™|MICROCOUPLER™|PowerSaver™|SuperSOT™-3|
|CoolFET™|FRFET™|MicroFET™|PowerTrench|SuperSOT™-6|
|_CROSSVOLT_™|GlobalOptoisolator™|MicroPak™|QFET|SuperSOT™-8|
|DOME™|GTO™|MICROWIRE™|QS™|SyncFET™|
|EcoSPARK™|HiSeC™|MSX™|QT Optoelectronics™|TinyLogic|
|E2CMOS™|I2C™|MSXPro™|Quiet Series™|TINYOPTO™|
|EnSigna™|_i-Lo_™|OCX™|RapidConfigure™|TruTranslation™|
|ImpliedDisconnect™<br>FACT™<br>FACT Quiet Series™||OCXPro™<br>OPTOLOGIC|RapidConnect™<br>µSerDes™|UHC™<br>UltraFET|
|Across the board. Around the world.™||OPTOPLANAR™|SILENT SWITCHER|UniFET™|
|The Power Franchise||PACMAN™|SMART START™|VCX™|
|Programmable Active Droop™||POP™|SPM™||



## **DISCLAIMER** 

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 

## **LIFE SUPPORT POLICY** 

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 

1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant into support device or system whose failure to perform can the body, or (b) support or sustain life, or (c) whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. 

## **PRODUCT STATUS DEFINITIONS** 

## **Definition of Terms** 

|**Definition of Terms**|||
|---|---|---|
|**Datasheet Identification**|**Product Status**|**Definition**|
|Advance Information|Formative or<br>In Design|This datasheet contains the design specifications for<br>product development. Specifications may change in<br>any manner without notice.|
|Preliminary|First Production|This datasheet contains preliminary data, and<br>supplementary data will be published at a later date.<br>Fairchild Semiconductor reserves the right to make<br>changes at any time without notice in order to improve<br>design.|
|No Identification Needed|Full Production|This datasheet contains final specifications. Fairchild<br>Semiconductor reserves the right to make changes at<br>any time without notice in order to improve design.|
|Obsolete|Not In Production|This datasheet contains specifications on a product<br>that has been discontinued by Fairchild semiconductor.<br>The datasheet is printed for reference information only.|



Rev. I14 



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- [Supplier page](https://es.farnell.com/on-semiconductor/1n4149tr/diode-small-signal-100v-do-204ah/dp/2453723)
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