JST B20B Series
8 variants · JST
About the JST JST B20B Series series
The JST JST B20B Series series groups 8 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common applications of -, connector type of Header and contact finish thickness - mating of -. Variants differ by contact finish - mating, contact finish - post and contact length - mating, so you can match the exact contact finish - mating your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current JST B20B Series variants and discontinued ones from a single page.
Select a variant by
- Contact finish - mating
- Tin · Tin-Lead
- Contact finish - post
- Tin · Tin-Lead
- Contact length - mating
- - · 0.114\" (2.90mm)
- Contact length - post
- 0.118\" (3.00mm) · 0.122\" (3.10mm) · 0.126\" (3.20mm) · 0.134\" (3.40mm)
- Contact shape
- Circular · Square
- Fastening type
- Detent Lock · Latch Holder · Locking Ramp
- Features
- - · Board Guide
- Insulation color
- Ivory · Natural
Variant comparison
| Parameter | B20B-PADSS-1(LF)(SN) | B20B-PADSS(LF)(SN) | B20B-PNDZS-1 (T)(LF)(SN) | B20B-PUDSS-1(LF)(SN) | B20B-XASK-1(LF)(SN) | B20B-PADSS-1 |
|---|---|---|---|---|---|---|
| Contact finish - mating | Tin | Tin | Tin | Tin | Tin | Tin-Lead |
| Contact finish - post | Tin | Tin | Tin | Tin | Tin | Tin-Lead |
| Contact length - mating | - | - | - | - | - | - |
| Contact length - post | 0.134\" (3.40mm) | 0.134\" (3.40mm) | 0.126\" (3.20mm) | 0.122\" (3.10mm) | 0.134\" (3.40mm) | 0.134\" (3.40mm) |
| Contact shape | Square | Square | Square | Square | Circular | Square |
| Fastening type | Locking Ramp | Locking Ramp | Locking Ramp | Latch Holder | Locking Ramp | Locking Ramp |
| Features | Board Guide | - | Board Guide | Board Guide | - | Board Guide |
| Insulation color | Natural | Natural | Ivory | Natural | Natural | Natural |
Shared specifications
- Applications
- -
- Connector type
- Header
- Contact finish thickness - mating
- -
- Contact finish thickness - post
- -
- Contact material
- Copper Alloy
- Current rating
- 3A
- Gender
- Male Pin
- Ingress protection
- -
- Material flammability rating
- UL94 V-0
- Mounting type
- Through Hole
- Positions
- 20
- Shrouding
- Shrouded - 4 Wall
Request a quote on any JST B20B Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.
Frequently asked questions
- How do the JST JST B20B Series variants differ?
- JST B20B Series part numbers differ by contact finish - mating, contact finish - post, contact length - mating and contact length - post. Use the selection guide above to pick by contact finish - mating.
- How many JST JST B20B Series part numbers are listed?
- 8 JST JST B20B Series part numbers are listed, each with specifications and a datasheet where available.
- How do I get pricing and lead time for JST JST B20B Series?
- Request a quote (RFQ) for any JST B20B Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.
All variants
Style: Board to Cable/Wire · Series: PAD · Package: Bulk · Features: Board Guide · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Locking Ramp · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.402\" (10.20mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin · Contact length - post: 0.134\" (3.40mm) · Current rating: 3A · Operating temperature: -25°C ~ 85°C · Mated stacking heights: 12.4mm · Contact finish - mating: Tin · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: PAD · Package: Tray · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Locking Ramp · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.402\" (10.20mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin · Contact length - post: 0.134\" (3.40mm) · Current rating: 3A · Operating temperature: -25°C~85°C · Mated stacking heights: 12.4mm · Contact finish - mating: Tin · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: PND · Package: Tray · Features: Board Guide · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Locking Ramp · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Ivory · Insulation height: 0.390\" (9.91mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Row spacing - mating: 0.197\" (5.00mm) · Contact finish - post: Tin · Contact length - post: 0.126\" (3.20mm) · Current rating: 3A · Operating temperature: -25°C~85°C · Mated stacking heights: 12.9mm · Contact finish - mating: Tin · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: PUD · Package: Tray · Features: Board Guide · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Latch Holder · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.378\" (9.60mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin · Contact length - post: 0.122\" (3.10mm) · Current rating: 3A · Operating temperature: -25°C~85°C · Mated stacking heights: 11mm · Contact finish - mating: Tin · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: XA · Package: Bulk · Shrouding: Shrouded - 4 Wall · Termination: Press-Fit, Solder · Gender: Male Pin · Contact shape: Circular · Mounting type: Through Hole · Connector type: Header · Fastening type: Locking Ramp · Rows: 1 · Pitch: 0.098\" (2.50mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.346\" (8.80mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Contact finish - post: Tin · Contact length - post: 0.134\" (3.40mm) · Current rating: 3A · Operating temperature: -25°C ~ 85°C · Mated stacking heights: 11.3mm · Contact finish - mating: Tin · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: PAD · Package: Bulk · Features: Board Guide · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Locking Ramp · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.402\" (10.20mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin-Lead · Contact length - post: 0.134\" (3.40mm) · Current rating: 3A · Operating temperature: -25°C~85°C · Mated stacking heights: 12.4mm · Contact finish - mating: Tin-Lead · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: PHD · Package: Bulk · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Detent Lock · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.256\" (6.50mm) · Insulation material: Polyamide (PA), Nylon, Glass Filled · Positions: 20 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin-Lead · Contact length - post: 0.118\" (3.00mm) · Current rating: 3A · Operating temperature: -25°C~85°C · Mated stacking heights: 8.8mm · Overall contact length: 0.291\" (7.40mm) · Contact finish - mating: Tin-Lead · Contact length - mating: 0.114\" (2.90mm) · Material flammability rating: UL94 V-0
Style: Board to Cable/Wire · Series: PUD · Package: Tray · Shrouding: Shrouded - 4 Wall · Termination: Solder · Gender: Male Pin · Contact shape: Square · Mounting type: Through Hole · Connector type: Header · Fastening type: Latch Holder · Rows: 2 · Pitch: 0.079\" (2.00mm) · Voltage rating: 250V · Contact material: Copper Alloy · Insulation color: Natural · Insulation height: 0.378\" (9.60mm) · Insulation material: Polyamide (PA66), Nylon 6/6, Glass Filled · Positions: 20 · Row spacing - mating: 0.079\" (2.00mm) · Contact finish - post: Tin · Contact length - post: 0.122\" (3.10mm) · Current rating: 3A · Operating temperature: -25°C ~ 85°C · Mated stacking heights: 11mm · Contact finish - mating: Tin · Material flammability rating: UL94 V-0