TVS - Mixed Technology

Part Number	Description / PDF	Quantity
VM105MK801R014P050 KEMET	VARISTOR 24V 800A RADIAL	0
STF203-33.TCT Semtech	TVS USB 33OHM RES 5.25V SC70-6	2372
82357120050 Würth Elektronik Midcom	ESD SUPPRESSOR 0402; 12VDC; 5PF	0
VM155MK122R014P050 KEMET	VARISTOR 24V 1.2KA RADIAL	0
SP724AHTG Wickmann / Littelfuse	TVS ARRAY ESD 4CH 20V SOT-23	2147483647
STF203-22.TCT Semtech	TVS USB 22OHM RES 5.25V SC70-6	4715
ADG467BRSZ Analog Devices, Inc.	IC CHAN PROTECTOR OCTAL 20-SSOP	0
TPD2S701QDSKRQ1 Texas Instruments	TPD2S701-Q1 AUTOMOTIVE USB 2-CHA	2190
SDP3500Q38CB Wickmann / Littelfuse	SIDAC BI 320V 500A QFN 5X6 8L	0
P1701UCLRP Wickmann / Littelfuse	SIDAC SLIC SYM 160V 500A MS013	0
ESDU02A3V3R17V Stackpole Electronics, Inc.	VARISTOR 17V 0402	0
VM474MK122R020P050 KEMET	VARISTOR 33V 1.2KA RADIAL	0
82357120100 Würth Elektronik Midcom	ESD SUPPRESSOR TVS 60V 0402	0
82356050101 Würth Elektronik Midcom	ESD SUPPRESSOR 0603; 5VDC; 100PF	0
82306050029 Würth Elektronik Midcom	VARISTOR 5.0VDC .2PF ESD 0603	6239
SDP0640Q38CB Wickmann / Littelfuse	SIDACTOR BI 64V 500A QFN 5X6 8L	0
TPD2S703QDSKRQ1 Texas Instruments	TPD2S703-Q1 - AUTOMOTIVE USB 2-C	866
MAX14562ETA+T Analog Devices, Inc.	OVERVOLTAGE PROTECTOR	165000
ZEN132V230A16YC Wickmann / Littelfuse	POLYZEN PPTC/ZENER SMD	0
GMOV-20D141K J.W. Miller / Bourns	GMOV 20MM, 140VRMS	233

TVS - Mixed Technology

1. Overview

Mixed Technology TVS devices combine multiple semiconductor materials and protection mechanisms to achieve superior transient voltage suppression performance. These hybrid solutions integrate silicon-based avalanche diodes, polymer-based ESD protection, and advanced packaging technologies to address complex electromagnetic interference (EMI) challenges in modern electronics. Their importance grows with the increasing demand for reliable protection in high-speed data lines, power systems, and sensitive ICs across industrial, automotive, and consumer applications.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Silicon-Polymer Hybrid TVS	Combines fast silicon diode response with polymer self-recovery capability	USB 3.2 interfaces, HDMI ports
Multi-Layer Varistor-TVS	Stacked silicon layers for multi-stage voltage clamping	Industrial power supplies, 5G base stations
Glass-Passivated Hybrid TVS	Hermetic glass encapsulation with integrated RC filtering	Automotive sensors, medical devices

3. Structure and Composition

Typical mixed technology TVS devices feature a 3D heterogeneous integration structure:

Active layer: Silicon carbide (SiC) or gallium nitride (GaN) semiconductor matrix
Passivation layer: Borosilicate glass or polymer composite
Electrode system: Multi-fingered aluminum-copper hybrid metallization
Thermal management: Embedded graphite heat spreader
Package: Lead-free QFN or DFN with EMI shielding coating

4. Key Technical Parameters

Parameter	Importance
Breakdown Voltage (Vbr)	Determines protection threshold for normal operation
Clamping Voltage (Vc)	Defines maximum voltage transmitted to protected circuit
Response Time (tr)	Measures speed of transition from blocking to conducting state
Power Dissipation (Pppm)	Indicates energy absorption capability during transients
Capacitance (Cj)	Critical for high-speed signal integrity preservation
Operating Temperature	Defines environmental reliability range (-55 C to +150 C typical)

5. Application Fields

Major industries utilizing mixed technology TVS devices include:

Telecommunications: 5G NR base stations, optical transceivers
Industrial Automation: PLC systems, motor drives
Automotive Electronics: CAN-FD interfaces, LiDAR systems
Consumer Devices: Smartphone charging ports, AR/VR headsets

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Specifications
Littelfuse	SMxxxHCA Series	40kV ESD protection, 0.5pF capacitance, 0.1ns response
STMicroelectronics	TVSH Series	Automotive qualified, AEC-Q101 certified, 300W peak power
Bourns	PGB1 Series	Multi-layer ceramic-silicon hybrid, 10Gbps data rate support

7. Selection Guidelines

Key considerations when selecting mixed technology TVS components:

Match breakdown voltage to system operating voltage (typically 10-15% margin)
Verify clamping voltage compatibility with protected IC's maximum ratings
Consider parasitic capacitance for high-speed (>1Gbps) applications
Evaluate thermal derating curves for intended operating environment
Check compliance with industry standards (IEC 61000-4-2, ISO 10605)
Assess packaging requirements (SMD vs through-hole, board space constraints)

8. Industry Trends

Emerging developments in mixed technology TVS field include:

Integration of AI-based predictive protection algorithms
Development of 3D-printed nanocomposite TVS structures
Adoption of wafer-level packaging for 0.1pF capacitance levels
Implementation of energy recovery features in hybrid architectures
Advancements in terahertz transient suppression materials