Meta Description: Explore JST molex connector alternatives from Konnra: 600+ pin-to-pin cross-reference SH, PH, XH, GH, ZH and more series across 0.8mm–5.08mm pitch.
Introduction: Finding a Reliable JST Connector Alternative Factory
A JST molex connector alternative is a pin-to-pin compatible connector — matching mechanical footprint, pitch, and terminal layout of an original JST part number — that allows engineers to source replacement housings, terminals, and headers without redesigning a PCB or wire harness. This sourcing strategy has become essential for electronics manufacturers facing lead-time volatility, allocation shortages, or cost pressure on branded connector lines from JST, as well as Molex, Hirose, and Yeonho.
Dongguan Konnra Electronics Co., Ltd, operating under the brand konnra, is a connector manufacturer and cross-reference supplier built specifically to solve this pain point. With over 600 employees, Konnra has engineered a product family spanning 45 series and roughly 2,150 individual cross-reference entries, covering a pitch range from 0.8mm to 5.08mm. Within this catalog, a substantial portion is dedicated to direct JST cross-references — housings, crimp terminals, SMT headers, and DIP headers — engineered to match original JST part numbers and footprints.
This guide breaks down Konnra’s JST-compatible connector series by pitch, explains the technical specifications behind each cross-reference, and provides a selection framework for engineers evaluating alternative sourcing options.
Why Manufacturers Seek JST Connector Alternatives
Industry Pain Point Insight: Customers need cross-reference-compatible connectors matching JST, Molex, Hirose, and Yeonho original part numbers for pin-to-pin alternative sourcing without redesign. Rather than re-qualifying a board layout or re-tooling a wire harness, engineers can drop in a Konnra equivalent using the same housing dimensions, terminal pitch, and locking geometry as the original JST component.
Konnra’s Value Proposition: Sourcing flexibility through cross-reference-compatible connector products that match original manufacturer part numbers and mechanical footprints, backed by:
- Pin-to-pin compatibility with JST, Molex, Hirose, and Yeonho connector series
- A broad product family covering 0.8mm to 5.08mm pitch connectors
- Housing, terminal, SMT header, and DIP header variants within each series
- Material alternatives such as halogen-free LCP, PA9T, PA66, and PBT housings
JST-Compatible Series Breakdown by Pitch
0.8mm Pitch — KR0800 Series (Alternative to JST SUR)
The KR0800 Series offers 43 products as insulation displacement connector (IDC) alternatives to the JST 0.8mm SUR series. Housings run from 2-position (H080001020101A) through 22-position (H080001220101A), and Konnra notes a differentiated detail: original SUR terminals are tin plated, while Konnra’s cross-reference terminals are gold plated for improved contact reliability. SMT headers are offered in both 180° and 90° wafer-to-board (WF) orientations in LCP housings, gold-plated pins, and tape-and-reel packaging (e.g., C0800VS10213G0101RA for 2-position 180°, C0800RS10213G0101RA for 2-position 90°).
1.0mm Pitch — KR1000 Series (Alternative to JST SH)
The KR1000 Series is Konnra’s largest JST cross-reference line by volume, with 106 products alternative to the JST SH1.0 series. It includes single-row housings from 2P to 20P (with and without mounting ears), phosphor bronze terminals in tin-plated (T10000PT0101A) or full 1-microinch gold-plated (T10000PG0201A) finishes, and SMT headers in 180°/90° WF orientations. The line also extends into dual-row SHR1.0 variants (2x5P through 2x25P) in PBT and PA6T natural housings, with and without locating posts, for board-to-board applications.
1.25mm Pitch — KR1259 Series (Alternative to JST GH)
The KR1259 Series provides 43 products alternative to the JST GH1.25 series. Housings range 2P through 15P, using phosphor bronze terminals with tin plating (T12590PT0101A). SMT headers are available in PA9T material for both 90° and 180° WF configurations, from 2-position (C1259RS10211M0101RA) up to 15-position, in tape-and-reel packaging — suited for compact wire-to-board applications requiring vibration-resistant retention.
1.2mm Pitch — KR1201 Series (Alternative to JST ACH1.2)
The KR1201 Series delivers 12 products alternative to the JST ACH1.2 series, featuring halogen-free natural LCP housings from 2P to 7P and matching 90° SMT WF headers with gold-plated pins (e.g., C1201RS10213G0200RA).
1.5mm Pitch — KR1501, KR1502, and KR1504 Series
- KR1501 Series (90 products): Alternative to JST ZH1.5, offering square-hole housings (2P–16P), DIP headers with and without kink in 90° and 180° orientations, and SMT headers in both orientations up to 14-position.
- KR1502 Series (15 products): Alternative to JST SZN1.5, with housings 2P–16P and an extended-pin phosphor bronze terminal (T1502VPT0102A).
- KR1504 Series (6 products): Alternative to JST ZM1.5, covering select positions (2P, 3P, 9P, 12P) with tin-plated phosphor bronze terminals.
2.0mm Pitch — KR2001, KR2003, KR2014, KR2022, and KR2023 Series
- KR2001 Series (76 products): Alternative to JST PH2.0, the most widely used 2.0mm wire-to-board series, spanning housings 2P–16P, DIP headers (90°/180°, with kink), and SMT headers (90°/180°) in matte tin finish.
- KR2003 Series (32 products): Alternative to JST SAN2.0, with separate 90° and 180° housing families (2P–16P) and brass, tin-plated terminals.
- KR2014 Series (84 products): Alternative to JST PA2.0, including DIP headers with and without post, and SMT headers in both orientations, 2P–15P.
- KR2022 Series (29 products): Alternative to JST PAL2.0, offering both standard and LOCK housing variants, 2P–15P, in white housings.
- KR2023 Series (7 products): Alternative to JST ULH2.0, with standard and TPA (terminal position assurance) housings in 4P and 6P configurations.
2.5mm Pitch — KR2501, KR2504, KR2507, KR2508, and KR2516 Series
Konnra’s 2.5mm pitch JST cross-references include KR2501 (XH2.5, 50 products), KR2504 (EH2.5, 43 products), KR2507 (SM2.5, 32 products), KR2508 (SCN2.5, 16 products), and KR2516 (XA2.5, 57 products) — collectively giving engineers broad coverage of JST’s 2.5mm wire-to-board family for battery packs, sensor harnesses, and low-profile board connections.
2.54mm and 3.96mm Pitch — KR2544, KR3961, and KR3963 Series
- KR2544 Series (4 products): Alternative to JST SYP2.54.
- KR3961 Series (29 products): Alternative to JST VH3.96, commonly used for higher-current wire-to-board connections.
- KR3963 Series (12 products): Alternative to JST SDN3.96.
4.0mm Pitch — KR4000 Series
The KR4000 Series (3 products) is Konnra’s alternative to the JST BH4.0 series, a compact set covering the higher-pitch, higher-current end of the JST product range within Konnra’s catalog.
Technical Capabilities Behind the Cross-References
Konnra’s JST-compatible products are built on a shared technology platform:
- Pitch coverage: 0.8mm, 1.0mm, 1.2mm, 1.25mm, 1.5mm, 2.0mm, 2.5mm, 2.54mm, 3.0mm, 3.96mm, 4.0mm, 4.2mm, and 5.08mm
- Terminal plating options: tin, gold, full gold (1 microinch), partial gold (15 microinch), bright tin, and matte tin
- Housing materials: LCP, PA6T, PA9T, PA66, and PBT, with halogen-free options available
- Terminal base materials: phosphor bronze, brass, and C7025 copper alloy
- Connection types: insulation displacement (IDC), crimp, SMT (90°/180° wafer-to-board), and DIP (through-hole) headers, with locating posts, latching, and kink options for board-to-board and wire-to-board designs
Application Scenarios for JST-Alternative Connectors
Board-to-wire harness replacement: When a JST SH1.0 or PH2.0 housing on an existing wire harness needs re-sourcing, the KR1000 or KR2001 series provides a drop-in housing and terminal match without altering wire preparation or crimping tooling.
PCB-mount header replacement: Where a design uses a JST GH1.25 or ZH1.5 SMT header, Konnra’s KR1259 or KR1501 SMT headers retain the same footprint, pitch, and solder pad layout, avoiding a PCB re-layout.
High-density or latching connections: For internal-latch or locking requirements similar to JST PAL2.0 or ULH2.0 designs, KR2022 (with LOCK variants) and KR2023 (with TPA housings) provide equivalent mechanical retention features.
Selection Guidance: Choosing the Right Cross-Reference Series
When evaluating a JST connector alternative, engineers should match the following variables against the original part:
- Pitch — Confirm the exact spacing (e.g., 1.25mm GH vs. 1.5mm ZH) since Konnra’s series are pitch-specific.
- Termination style — Determine whether the design requires SMT (90° or 180°), DIP, IDC, or free-hanging crimp housings.
- Terminal plating — Match tin, gold, or partial-gold plating requirements for contact resistance and cost targets; note that some Konnra cross-references (such as KR0800) intentionally upgrade to gold plating versus a tin-plated original.
- Housing material and halogen status — Confirm LCP, PA9T, PA66, or PBT material needs, especially where halogen-free compliance is required, as seen in the KR1200 and KR1201 series.
- Position count — Verify the exact pin count is available; some high pin-count variants in a series may not have a listed original manufacturer part number, indicating an extended or custom configuration.
Related Cross-Reference Series Beyond JST
While this guide focuses on JST alternatives, Konnra’s broader 45-series catalog also cross-references Molex (e.g., KR1200 for MX1.2, KR1250 for MX1.25, KR2000 for MX2.0), Hirose (e.g., KR1002 for DF19, KR1255 for DF14, KR1256 for DF13, KR2009 for DF3), and Yeonho (KR2004 and KR2502) connector families — giving procurement teams a single cross-reference source when a design mixes connector brands across a single product.
Conclusion
For engineering and procurement teams seeking a JST connector alternative factory, Konnra’s cross-reference catalog offers pitch-matched, footprint-compatible housings, terminals, and headers spanning the JST SUR, SH, ACH, GH, ZH, SZN, ZM, PH, SAN, PA, PAL, ULH, XH, EH, SM, SCN, XA, SYP, VH, SDN, and BH series. With material options in LCP, PA9T, PA66, and PBT, multiple terminal platings, and both SMT and DIP termination styles, Konnra positions itself as a component supplier capable of supporting pin-to-pin substitution across nearly the full JST connector portfolio without requiring a design change.
https://konnra.com/jst-molex-alternatives-suppliers-and-factory/
Dongguan Konnra Electronics Co., Ltd