A variant of BNC coaxial feedthrough with embedded pins for increased voltage rating. Features grounded shielding with non-fixed impedance matching. Available in single-ended MHV or double-ended MHVD configurations. Single-ended version uses a 2.4 mm conductor; double-ended version uses MHV interface. Rated at 5 kV max, 3 A. Operates from -200°C to 450°C under UHV (<1×10⁻¹⁰ mbar). CF16 flanges support 1 unit; CF40 flanges accommodate up to 4 single-ended units. Custom flange-feedthrough combinations and weldable versions available. Optional dual-end connectors and cables available.

PRODUCTS

TEL 15301310116

Madison Technology Co., Ltd

TEL：15301310116

email：sales@madison-tech.com

address：1st floor, Building 11, Zhongguancun Software Park, Haidian District, Beijing

Overview

Features

· Variant of BNC feedthrough with embedded pins, increasing rated voltage to 5 kV.

· Grounded shielding with non-fixed impedance matching.

· Available in single-ended MHV or double-ended MHVD configurations.

· One unit fits on a CF16 flange; up to 4 units on a CF40 flange.

· Multiple feedthroughs can be welded onto larger flanges.

· Optional connectors and cables available for both ends.

· Custom flange and feedthrough configurations available upon request.

Parameters

Specification
Shielding Type	Grounded Shielding
Impedance Matching	Non-fixed
Conductor Diameter	Single-ended: 2.4 mm pin Double-ended: MHV Interface
Maximum Voltage	5000 V DC
Maximum Current	3 A
Temperature Range	-200 °C ~ 450 °C
Ultimate Vacuum	< 1×10⁻¹⁰ mbar
Leak Rate	< 1×10⁻¹² Pa·m³/s (He)

Dimensions

MHV/MHVD Coaxial Feedthrough

KF Flange Selection Table
Flange	Number of Feedthroughs	Single-ended MHV Model	Double-ended MHVD Model
KF16	1	MT140-MHV-K16	MT140-MHVD-K16
KF40	1	MT140-MHV-K40	MT140-MHVD-K40
KF40	2	MT140-MHV-K40-2	MT140-MHVD-K40-2
KF40	3	MT140-MHV-K40-3	/
KF40	4	MT140-MHV-K40-4	/
Note: For other flange and feedthrough combinations, please contact us.

Weldable Version Selection Table

Number

of Feedthroughs

Single-ended MHV Model

Double-ended MHVD Model

MT140-MHV-WV

MT140-MHVD-WV

Related Accessories
Accessory	MHV Coaxial Feedthrough	MHVD Coaxial Feedthrough
Vacuum Side Connector	MT160-PPOC-2.4 MT160-CRFC-2.4 MT145-CON-SMHV-VAC	MT145-CON-MHV-VAC
Vacuum Cable	MT165-PTFE50 coaxial cable MT165-KAP50 coaxial cable MT165-KAPM series
Vacuum Side Connector + Cable	MT145-SMHV-FX-PTFE50-500-VAC	MT145-MHV-MX-PTFE50-500-VAC
Air Side Connector	MT145-CON-MHV-AIR
Air Side Connector + Cable	MT145-MHV-MX-500-AIR

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