Specifications
| Type | Description |
|---|---|
| Part Number | 1N4001 |
| Manufacturer | STMicroelectronics |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | DO-41 (DO-204AL), molded epoxy body |
| Package Body Diameter | 0.080-0.107 in (2.0-2.7 mm) |
| Package Body Length | 0.160-0.205 in (4.1-5.2 mm) |
| Lead Length | 1.0 in (25.4 mm) min |
| Lead Diameter | 0.028-0.034 in (0.71-0.86 mm) |
| Suffix E Lead Diameter | 0.023-0.026 in (0.58-0.66 mm) |
| Maximum Repetitive Peak Reverse Voltage | 50 V |
| Maximum RMS Voltage | 35 V |
| Maximum DC Blocking Voltage | 50 V |
| Maximum Average Forward Rectified Current | 1.0 A |
| Peak Forward Surge Current | 30 A |
| Non-Repetitive Peak Forward Surge Current | 45 A |
| Non-Repetitive Peak Forward Surge Current | 35 A |
| Non-Repetitive Peak Forward Surge Current | 30 A |
| Maximum Full Load Reverse Current | 30 µA |
| Rating for Fusing | 3.7 A²s |
| Operating Junction Temperature Range | -50 to +150°C |
| Storage Temperature Range | -50 to +150°C |
| Maximum Instantaneous Forward Voltage | 1.1 V |
| Maximum DC Reverse Current | 5.0 µA |
| Maximum DC Reverse Current | 50 µA |
| Typical Junction Capacitance | 15 pF |
| Typical Thermal Resistance Junction-to-Ambient | 50°C/W |
| Typical Thermal Resistance Junction-to-Lead | 25°C/W |
| Solder Dip Temperature | 275°C max for 10 s |
| Terminal Finish | Matte tin plated leads |
| Datasheet Status | request_only |
Product Overview
The STMicroelectronics 1N4001 is a general purpose plastic rectifier supplied in a DO-41 (DO-204AL) molded epoxy body. Its axial package dimensions include a 0.080-0.107 in body diameter, 0.160-0.205 in body length, and 1.0 in minimum lead length. Standard lead diameter is 0.028-0.034 in, with suffix E using 0.023-0.026 in leads.
Electrical ratings for the 1N4001 include 50 V maximum repetitive peak reverse voltage, 35 V maximum RMS voltage, and 50 V maximum DC blocking voltage. It is rated for 1.0 A maximum average forward rectified current with 0.375 in lead length at TA=75°C, and a maximum instantaneous forward voltage of 1.1 V at IF=1.0 A and TA=25°C.
For transient conditions, the device is specified for 30 A peak forward surge current with an 8.3 ms single half sine-wave superimposed on rated load. Square-wave non-repetitive surge ratings are 45 A at 1 ms, 35 A at 2 ms, and 30 A at 5 ms at TA=25°C. Assembly facts include matte tin plated leads solderable per J-STD-002 and JESD 22-B102, plus a 275°C maximum solder dip temperature for 10 seconds per JESD 22-B106.
Key Features
- 50 V maximum repetitive peak reverse voltage rating
- 35 V maximum RMS voltage for 1N4001
- 50 V maximum DC blocking voltage rating
- 1.0 A average forward rectified current rating
- 30 A half sine-wave peak forward surge current
- 45 A non-repetitive surge current at 1 ms
- 1.1 V maximum forward voltage at 1.0 A
- 5.0 µA reverse current at rated voltage, 25°C
- 15 pF typical junction capacitance at 1 MHz
- Matte tin plated leads for solderable terminals
Typical Applications
- General purpose rectification
- Bridge rectifier applications
- DC blocking circuits
- 1.0 A rectified-current paths
- 50 V reverse-voltage circuits
- Axial-leaded PCB assemblies
- Thermally specified lead-mounted designs
Procurement Notes
When requesting a quote for 1N4001, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What voltage ratings apply to the 1N4001?
For the 1N4001, the extracted datasheet facts list 50 V maximum repetitive peak reverse voltage, 35 V maximum RMS voltage, and 50 V maximum DC blocking voltage.
What forward current is specified for this rectifier?
The maximum average forward rectified current is 1.0 A when measured with 0.375 in (9.5 mm) lead length at TA=75°C.
What package is used by the STMicroelectronics 1N4001?
The device is supplied in a DO-41 (DO-204AL) molded epoxy axial package with a 0.160-0.205 in body length and 1.0 in minimum lead length.
What assembly temperature limit is listed for solder dipping?
The solder dip temperature is specified as 275°C maximum for 10 seconds per JESD 22-B106. The terminal finish is matte tin plated leads.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 19, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.