B03B-PAEK(LF)(SN) - 3-Pin 2mm Through-Hole PA Header | JST
부품 번호: B03B-PAEK(LF)(SN) ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.1013 | $0.10 |
| 10 | $0.095 | $0.95 |
| 100 | $0.085 | $8.50 |
| 500 | $0.072 | $36.00 |
| 1,000 | $0.061 | $61.00 |
B03B-PAEK(LF)(SN) 개요
A board-to-board or wire-to-board header is a passive interconnect component that provides a separable, mechanically robust electrical path between a printed circuit board and an external cable, harness, or mating PCB. Headers sit within the broader category of rectangular connectors, which belong to the family of electromechanical interconnect products. The PA series from JST is widely used as a cost-effective, polarized, locking-rail solution where 2.00 mm pitch discrete-wire termination is required.
Key differentiating features of the B03B-PAEK(LF)(SN) include a glass-fiber reinforced PBT insulator rated UL94V-0, copper-alloy contacts with a tin (Sn) plating finish, and a polarized housing with a friction lock ramp that mates with the corresponding PAP-series crimp housing. The through-hole K-pin tail geometry, combined with a 5.3 mm profile and 8 mm overall length, supports wave-solder assembly while leaving room for standard cable-side mating clearance.
From an engineering standpoint, the PA series uses a single-row contact arrangement with 2.00 mm pitch, which is a widely accepted open-industry footprint. Tin-plated copper-alloy contacts provide low contact resistance for sub-3 A signal and low-power distribution; for harsher environments, JST offers gold-plated variants within the same mechanical envelope.
Typical applications: internal wiring harnesses for consumer electronics, low-current power distribution boards, signal header interfaces on industrial controllers, sensor break-out boards, and prototyping/DIY electronics that use the popular JST-PH-equivalent footprint family.
Design tip: Always mate the B03B-PAEK(LF)(SN) with the correct PA-series female housing (e.g., PAP-03V-S) and AWG 28-22 crimp contacts; mismatched series will not latch and may damage the locking ramp.
This page consolidates distributor pricing, drop-in alternative headers, and selection notes beyond what is summarized in the JST catalog datasheet, supporting faster engineering decisions.
드롭인 대체품: B03B-PAEK(LF)(SN) — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
B03B-PAEK-1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
B03B-PASK
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
B03B-PASK-1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
B02B-PASK
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
B04B-PASK
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
B03B-PAEK(LF)(SN) 사양
| Series | PA |
| Connector Type | Header, Male Pins, Top Entry |
| Number of Positions | 3 |
| Pitch | 2.00 mm (0.079 in) |
| Number of Rows | 1 |
| 실장 유형 | Through Hole |
| Current Rating | 3 A |
| Voltage Rating | 250 V |
| Contact Material | Copper Alloy |
| Contact Plating | Tin (Sn) |
| Insulator Material | Glass-Fiber Reinforced PBT, UL94V-0 |
| 동작 온도 | -25 C to +85 C |
| Mating Housing | PA Series (e.g., PAP-03V-S) |
| Overall Length | 8 mm |
| Profile Height | 5.3 mm |
| Color | Blue |
| RoHS 상태 | Compliant (LF = Lead-Free) |
B03B-PAEK(LF)(SN) 핀 구성
| 핀 1 | Pin 1 — Contact position 1 (marked with triangle on insulator) |
| 핀 2 | Pin 2 — Contact position 2 |
| 핀 3 | Pin 3 — Contact position 3 |
일반적인 애플리케이션
B03B-PAEK(LF)(SN) 적합 용도: 6 애플리케이션s: Consumer Electronics Wire Harness, Sensor Breakout Boards, Industrial Controller Signal Headers, LED Lighting Strips and Drivers, DIY and Prototyping Electronics, Test and Measurement Fixtures.
Consumer Electronics Wire Harness
The B03B-PAEK(LF)(SN) is widely used as the board-side interface for 3-wire harnesses in consumer electronics such as small appliances, audio amplifiers, and LED lighting controllers. Its 3 A current rating covers typical load currents for fans, addressable LED data lines, and low-current DC distribution rails, while the 2.00 mm pitch keeps the connector footprint compact on space-constrained PCBs. The locking ramp mates cleanly with the JST PAP-03V-S housing and SPH-series crimp contacts, giving a polarized, vibration-resistant connection for cable assemblies. The UL94V-0 PBT body provides flame resistance for safety-critical loads.
추천
Sensor Breakout Boards
Hobbyist and industrial sensor breakout boards frequently use the B03B-PAEK(LF)(SN) as a 3-pin interface for power, ground, and signal lines from temperature, humidity, or proximity sensors. The 2.00 mm pitch matches the JST-PH-adjacent footprint family, making it easy to reuse cables between sensor variants. Its 250 V rating gives substantial headroom over the 3.3 V or 5 V rails typical of sensor designs, while the -25 C to +85 C range covers indoor industrial and outdoor-encapsulated environments. Through-hole K-pin tail fins provide a robust wave-solder joint for hand-assembled prototype runs.
추천
Industrial Controller Signal Headers
Inside PLCs, motor controllers, and process-control boards, the B03B-PAEK(LF)(SN) functions as a low-voltage signal header for routing 24 V logic, encoder feedback, or enable lines to sub-modules. The 3 A rating is sufficient for opto-isolated signal paths and small relay coil feeds, and the polarized locking ramp prevents mis-mating during field service. Tin-plated copper-alloy contacts maintain stable contact resistance over many mate cycles, important for test-and-measurement fixtures and reconfigurable industrial harnesses.
추천
LED Lighting Strips and Drivers
Addressable LED strips, RGB controllers, and constant-current LED drivers commonly use the B03B-PAEK(LF)(SN) as a 3-pin interface for power, ground, and clock/data signal lines. The 3 A rating covers multi-meter LED runs at 5 V or 12 V, while the compact 2.00 mm pitch allows dense driver PCBs. The polarized housing eliminates the wrong-orientation failures common with cheap 2.54 mm headers, and the tin-plated contacts handle frequent LED-replacement cycles without plating wear.
추천
DIY and Prototyping Electronics
The B03B-PAEK(LF)(SN) is a staple of DIY electronics, used on Arduino shields, Raspberry Pi HATs, and 3D-printer controller boards as a removable power or signal interface. The 2.00 mm pitch aligns with the popular JST-PH-adjacent footprint family, allowing reuse of off-the-shelf battery pigtails and sensor cables. Through-hole mounting is forgiving for hand-soldering and rework, and the UL94V-0 body survives the inevitable mistakes of early prototyping. The LF (lead-free) and Sn (tin) plating combination is acceptable for RoHS consumer projects.
추천
Test and Measurement Fixtures
Bench-top test jigs and ICT (in-circuit test) fixtures use the B03B-PAEK(LF)(SN) as a quick-disconnect header for injecting power and probing signal lines on the unit under test. The 3 A / 250 V rating covers bench supply rails and logic-level signals, and the locking ramp prevents accidental disconnect during long test runs. The through-hole K-pin tail fins seat firmly in wave-soldered fixture PCBs, surviving thousands of mate cycles when gold-plated upgrade contacts are paired with the tin-plated header.
추천
추천 제품 요약
엔지니어링 참조 데이터: B03B-PAEK(LF)(SN) — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | B03B-PAEK-1(LF)(SN) | B03B-PASK(LF)(SN) | B03B-PASK-1(LF)(SN) | B02B-PASK(LF)(SN) | B04B-PASK(LF)(SN) |
|---|---|---|---|---|---|---|
| Brand | JST | JST | JST | JST | JST | JST |
| Package / Mounting | Through-Hole, 2.00mm pitch, 1x3P | Through-Hole, 2.00mm pitch, 1x3P - same | Through-Hole, 2.00mm pitch, 1x3P - same | Through-Hole, 2.00mm pitch, 1x3P - same | Through-Hole, 2.00mm pitch, 1x2P | Through-Hole, 2.00mm pitch, 1x4P |
| Number of Positions | 3 | 3 | 3 | 3 | 2 | 4 |
| Current Rating | 3 A | 3 A | 3 A | 3 A | 3 A | 3 A |
| Voltage Rating | 250 V | 250 V | 250 V | 250 V | 250 V | 250 V |
| Operating Temperature | -25 C to +85 C | -25 C to +85 C | -25 C to +85 C | -25 C to +85 C | -25 C to +85 C | -25 C to +85 C |
| Contact Plating | Tin (Sn) | Tin (Sn) | Tin (Sn) | Tin (Sn) | Tin (Sn) | Tin (Sn) |
| Mating Housing | PAP-03V-S | PAP-03V-S | PAP-03V-S | PAP-03V-S | PAP-02V-S | PAP-04V-S |
| RoHS / Lead-Free | Yes (LF/Sn) | Yes (LF/Sn) | Yes (LF/Sn) | Yes (LF/Sn) | Yes (LF/Sn) | Yes (LF/Sn) |
주요 차별점
- PCB locating boss option for higher-assembly accuracy (vs B03B-PAEK-1(LF)(SN))
- Polarized PA-series locking ramp (vs Generic 2.54 mm pin headers)
- Compact 2.00 mm pitch with 3 A rating (vs JST XH 2.5 mm pitch headers)
설계 노트
Do not attempt to mate the B03B-PAEK(LF)(SN) with a non-PA-series JST housing (for example, PH or XH series). The locking ramp geometry, contact width, and pitch differ; the housing will not latch and the contacts may be bent or shorted. Always confirm the female housing is the PAP-series, e.g. PAP-03V-S for the 3-pin version.
Recommended PCB through-hole diameter for the K-pin tail is 0.9-1.0 mm with a 1.6 mm or 2.0 mm annular ring, per JST PA-series datasheet. Place the header away from tall components to give the locking ramp clearance for hand-mating, and route signal traces on the opposite side of the board if possible to minimize stub effects at higher data rates.
For 3-wire harnesses carrying both power and signal (e.g., LED data lines), place a small decoupling capacitor (100 nF ceramic) on the PCB-side connector landings to suppress switching transients from the cable. The 250 V rating gives substantial headroom; however, for cable lengths over 100 mm at data frequencies above 1 MHz, consider a series ferrite or shielded variant.
규정 준수 정보
RoHS and lead-free compliance indicated by the (LF)(SN) suffix in the MPN. AEC-Q100 not applicable for a passive interconnect component. Halogen-free status not explicitly stated in the verified data; consult JST directly for flame-retardant chemistry.