DC - DC Connector Barrel Jack | AG Electronica
Артикул: DC ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $0.18 | $0,18 |
| 10 | $0.15 | $1,50 |
| 100 | $0.11 | $11,00 |
| 500 | $0.08 | $40,00 |
| 1.000 | $0.06 | $60,00 |
| 3.000 | $0.05 | $150,00 |
DC Обзор
A DC barrel connector is a standardized coaxial power inlet that mates with a male DC plug carrying center-positive or center-negative polarity. The DC-005 follows the EIA/JEDEC-conventional 2.1 mm inner pin / 5.5 mm outer sleeve geometry, the de-facto pinout used by legacy wall adapters. This category includes through-hole, surface-mount, mid-mount and panel-mount variants, locking and non-locking versions, and a range of pin diameters (1.3, 1.65, 2.1, 2.5 mm). Each variant is keyed by inner diameter so that power adapters cannot accidentally cross-mate between incompatible voltage rails - the industry standard remains 2.1 x 5.5 mm for 12-24 V adapters and 2.5 x 5.5 mm for higher-current laptop supplies.
The DC-005 exposes three through-hole pins: a tip contact (the spring-loaded sleeve), a sleeve contact (the inner pin), and a mechanical mounting pin tied to chassis ground. Its current rating is derived from the silver-plated copper alloy contact system and a 5,000-cycle mating durability rating, sufficient for the typical 3-5 year service life of a wall-powered consumer product.
In circuit terms, this part is a passive mechanical-electrical interconnect - it has no active silicon, no SOA, and no logic. Its signal integrity is characterized solely by contact resistance and insertion force. Engineers select it for its sub-100-cent cost, its compatibility with universal AC adapters, and its ability to be wave-soldered alongside through-hole components on small-batch production lines.
Typical applications include Arduino/Raspberry Pi power input, 3D-printer 24 V supplies, audio amplifier 12-24 V rails, CCTV camera feeds, and IoT gateway mains adapters. The 24 V / 3 A rating comfortably drives 60-70 W of downstream load through the connector before derating.
When designing with this connector, reserve at least 10 mm of PCB keep-out around the barrel opening to allow plug insertion clearance, and add a TVS diode across the input to clamp inductive adapter transients at the connector pins.
This page synthesizes the AG Electronica DC-005 datasheet specification with cross-references to the broader DC-005 family and competitive offerings, plus practical PCB-layout notes not found in the manufacturer datasheet alone.
Аналоги без доработки для DC — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
DC-005-2.1R
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PJ-102AH
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
694106183502
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
RAPC712X
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PJ-202AH
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DC Максимальные параметры и электрические характеристики
| Manufacturer | AG Electronica |
| Part Number | DC-005 |
| Connector Type | DC Power Jack (Barrel) |
| Inner Pin Diameter | 2.1 mm |
| Outer Sleeve Diameter | 5.5 mm |
| Barrel Length | 14 mm |
| Rated Voltage | 24 V DC |
| Rated Current | 3 A continuous |
| Способ монтажа | Through-Hole (PCB mount) |
| Pin Configuration | 3 pins: tip, sleeve, chassis-mount |
| Polarity Standard | Center-positive (typical) |
| Статус RoHS | unknown |
| Lead-Free | unknown |
Конфигурация выводов DC
| Контакт 1 | Tip — Outer sleeve contact (normally GND) |
| Контакт 2 | Sleeve — Inner pin contact (normally V+ / center-positive) |
| Контакт 3 | Mount — Mechanical chassis-mount pin (PCB retention) |
Типичное применение
DC подходит для 6 применениеs: Arduino / Raspberry Pi Power Input, 3D Printer 24V Main Power Input, CCTV and Security Camera Power Input, Audio Amplifier DC Power Inlet, IoT Gateway and Edge Device Mains Adapter, Bench Power Supply Accessory Input.
Arduino / Raspberry Pi Power Input
The DC-005 is the de-facto power inlet for Arduino Uno, Raspberry Pi 3B/4B clones, ESP32 dev boards, and most hobbyist microcontroller platforms. Its 2.1 x 5.5 mm mating geometry and 24 VDC / 3 A rating comfortably cover the 7-12 VDC wall adapters supplied with these boards. A bidirectional TVS diode across the DC-005 output pins clamps hot-unplug transients before they reach the onboard LDO.
Рекомендуется
3D Printer 24V Main Power Input
Bed-slinger and CoreXY 3D printers typically use a 24 VDC / 10-15 A switching supply feeding MOSFET-driven bed and hot-end heaters. The DC-005 serves as the auxiliary low-current input for logic fans, displays, and Raspberry Pi controller boards at 24 VDC up to 3 A. Its through-hole chassis-mount pin resists vibration-induced loosening from stepper motors.
Рекомендуется
CCTV and Security Camera Power Input
Passive infrared and outdoor IP cameras typically accept a 12 VDC wall adapter through a DC barrel jack. The DC-005's polarity-stable center-positive pinout (industry default for cameras) and corrosion-resistant silver plating make it a reliable choice for indoor and sheltered-outdoor installations. Add a PTC fuse at the DC-005 output to limit fault current on the camera's PCB.
Рекомендуется
Audio Amplifier DC Power Inlet
Class-D and Class-AB audio amplifiers in the 50-100 W range commonly accept a 24 VDC / 3 A supply via a barrel jack feeding a TPS54331 buck converter that generates the +/- rail voltages. The DC-005's 5,000-cycle mating durability supports years of plug/unplug cycles from consumer use, and its 3 A continuous rating handles typical idle draws with margin.
Рекомендуется
IoT Gateway and Edge Device Mains Adapter
Industrial IoT gateways, Zigbee/Z-Wave bridges, and BLE mesh routers typically run from a 5 V or 12 VDC wall adapter through a barrel jack. The DC-005 provides a robust, universal-mate input for the gateway's switching regulator chain. Its through-hole construction survives the assembly rework cycles typical of industrial gateway prototypes.
Рекомендуется
Bench Power Supply Accessory Input
Hobby and bench power supplies often expose a 2.1 x 5.5 mm barrel jack as a quick-connect input for low-power DC loads when the user is not driving the binding posts. The DC-005's known-good mechanical geometry ensures compatibility with the universal 12-24 VDC adapter ecosystem; add a reverse-polarity protection FET to handle miswired adapters from the bench environment.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для DC — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | DC-005-2.1R | PJ-102AH | 694106183502 | RAPC712X | PJ-202AH |
|---|---|---|---|---|---|---|
| Package | Through-Hole Barrel Jack, 3-pin | Through-Hole Right-Angle Barrel Jack, 3-pin - same mating | Through-Hole Barrel Jack, 3-pin - same footprint | Through-Hole Barrel Jack, 3-pin - same footprint | Through-Hole Barrel Jack, 3-pin - same footprint | Through-Hole Barrel Jack, 3-pin - same footprint |
| Brand | AG Electronica | AG Electronica | CUI Inc | Wurth Elektronik | Switchcraft | CUI Inc |
| Barrel Geometry | 2.1 x 5.5 x 14 mm | 2.1 x 5.5 x 14 mm - same | 2.1 x 5.5 x 14 mm - same | 2.1 x 5.5 x 14 mm - same | 2.1 x 5.5 x 14 mm - same | 2.1 x 5.5 x 14 mm - same |
| Rated Voltage | 24 V DC | 24 V DC | 24 V DC | 24 V DC | 24 V DC | 30 V DC (+25%) |
| Rated Current | 3 A continuous | 3 A continuous | 5 A continuous (+67%) | 5 A continuous (+67%) | 5 A continuous (+67%) | 5 A continuous (+67%) |
| Mounting Style | Through-Hole Vertical | Through-Hole Right-Angle | Through-Hole Vertical | Through-Hole Vertical | Through-Hole Vertical | Through-Hole Vertical |
| Polarity | Center-positive (default) | Center-positive (default) | Center-positive | Center-positive | Center-positive | Center-positive |
| Pin Count | 3 (tip + sleeve + chassis-mount) | 3 - same | 3 - same | 3 - same | 3 - same | 3 - same |
| qty-1000 Unit Price (USD) | $0.06 | $0.07 | $0.85 | $1.20 | $1.50 | $0.95 |
Ключевые отличия
- Lowest BOM cost among 2.1 mm barrel jacks (против CUI Inc PJ-102AH)
- Vertical PCB exit standard orientation (против DC-005-2.1R)
- Higher current rating alternatives available (против PJ-102AH and 694106183502)
Заметки по проектированию
Reserve at least 10 mm of lateral PCB keep-out around the DC-005 barrel opening so the 2.1 x 5.5 mm plug can be inserted without binding against nearby components or heatsinks. The chassis-mount pin (pin 3) should be tied to GND on the PCB to provide good mechanical retention; without this ground bond the connector can rotate over thermal cycles.
Verify the polarity convention before connection. The DC-005 family supports both center-positive and center-negative variants - the unmarked 'DC-' prefix does NOT encode polarity. Reverse polarity will instantly damage downstream components that lack reverse-polarity protection. A simple P-MOSFET reverse-polarity protection block (e.g., NTR4101P) at the connector output prevents this failure mode.
Add a bidirectional 26 V TVS diode (e.g., SMBJ26CA) and a 100 uF / 35 V electrolytic bulk capacitor across the DC-005 output. The TVS clamps inductive transients from hot-unplugged switching adapters, and the bulk cap holds the rail through the millisecond-scale dropout that can occur when a wall adapter is swapped. Estimated: for a 3 A load, a 100 uF cap yields ~0.5 ms holdup at 1 V droop - adequate for most downstream regulators.
Информация о соответствии
Compliance status not explicitly stated in the AG Electronica product listing or alldatasheet.com DC-005 PDF as of 2026-10-10. The DC-005 family from Asian manufacturers is commonly RoHS-compliant per typical industry practice, but this should be verified against the supplied manufacturer declaration before integration into RoHS- or REACH-restricted markets.
