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Vishay General Semiconductor - Diodes Division VTVS25GSMF-M3-18
- Part No.:
- VTVS25GSMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS25GSMF-M3-18.pdf
- Description:
- TVS DIODE 25.2VWM 42VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,821
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Product details
Overview
VTVS25GSMF-M3-18 from Vishay Semiconductors is a unidirectional 400 W TransZorb® transient voltage suppressor diode in SMF (DO-219AB) package, designed for ESD and surge protection of low-voltage DC lines such as USB, HDMI, automotive sensor interfaces, and industrial I/O. It features 25.2 V stand-off voltage (VRWM), 29.4–30.6 V reverse breakdown voltage (VBR) at 1 mA, 42 A peak pulse current (IPPM), 42 V maximum clamping voltage (VC), and ±2 % VBR tolerance.
For engineers reviewing the VTVS25GSMF-M3-18 datasheet, VTVS25GSMF-M3-18 pinout, VTVS25GSMF-M3-18 application, or VTVS25GSMF-M3-18 equivalent, this device is selected for high-reliability ESD protection in space-constrained, high-speed signal paths requiring IEC 61000-4-2 ±30 kV contact/air discharge compliance, fast response time, and low capacitance (433 pF).
Technical Context
This TVS diode operates in avalanche mode to clamp transients above its breakdown threshold while maintaining low leakage (<0.05 μA at VRWM) and stable thermal performance up to TJ = +175 °C. Its unidirectional polarity enables protection of positive-rail-only signal lines without forward conduction during normal operation.
The SMF package delivers low-profile mounting (1.08 mm height), compatibility with SOD-123W/SOD-123F footprints, and MSL level 1 moisture sensitivity-enabling robust reflow soldering at peak temperatures ≤260 °C. Its halogen-free molding compound meets Vishay's material categorization standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform); sustains repeated surge events in automotive and industrial environments |
| Stand-off Voltage (VRWM) | 25.2 V; maximum continuous reverse voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 29.4–30.6 V at IT = 1 mA; ±2 % tolerance ensures precise trigger point for overvoltage detection |
| Clamping Voltage (VC) | 42 V at IPPM = 9.35 A; limits downstream voltage stress during 10/1000 μs surges |
| Capacitance (CD) | 433 pF at VR = 0 V, f = 1 MHz; suitable for <100 Mbps data lines with minimal signal distortion |
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2; protects against human-body-model and system-level ESD |
| Operating Temperature | −55 °C to +175 °C junction range; supports under-hood automotive and industrial control applications |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case with cathode marking bar; dimensions: 3.9 × 1.9 × 1.08 mm (L × W × H); compatible with SOD-123W footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to protected line's ground or return path; defines polarity of suppression |
| Cathode | Clamping output terminal | Connected to protected signal line; conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| "Low-Noise" fast response | Sub-nanosecond turn-on enables protection of high-speed digital interfaces without signal integrity degradation |
| AEC-Q101 qualification option | Available in AEC-Q101 qualified variants (e.g., VTVS25GSMF-HM3-18); validated for automotive electronics reliability |
| Wave & reflow solderable | MSL level 1 rating and 260 °C peak reflow compatibility support automated PCB assembly |
| Halogen-free construction | Meets RoHS and halogen-free standards (per doc 99912); supports environmentally compliant end products |
| Low-profile SMF package | 1.08 mm height enables use in ultra-thin consumer and portable electronics |
Applications
| USB 2.0 Data Lines | Automotive Sensor Interfaces |
|---|---|
Use Scenario: Protection of D+ and D− lines in USB 2.0 peripherals against ESD and cable-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients before they reach the USB transceiver. Use Value: 433 pF capacitance avoids signal rise-time degradation; ±30 kV ESD rating exceeds USB-IF requirements. |
Use Scenario: Surge protection for LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules. IC Role / Device Role / Timing Role: Standoff-rated clamping device on 12 V supply rails or signal returns, absorbing load-dump and ISO 7637-2 pulses. Use Value: 25.2 V VRWM matches typical 12 V system operating margins; 175 °C max junction temperature supports under-hood placement. |
| Industrial I/O Ports | HDMI Source Ports |
Use Scenario: Input/output protection on PLC digital inputs exposed to field wiring transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, shunting energy to common ground during induced surges. Use Value: 400 W peak power handles repetitive 10/1000 μs surges per IEC 61000-4-5; low leakage preserves input logic thresholds. |
Use Scenario: ESD protection on TMDS clock and data pairs in HDMI source devices (e.g., set-top boxes, GPUs). IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed inline with each differential pair, referenced to chassis ground. Use Value: 433 pF ensures <1% signal attenuation at 250 MHz; ±2 % VBR tolerance guarantees consistent clamping across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | 24 V VRWM, ±5 % VBR tolerance, 400 W, SMA package (DO-214AC), 1.5 mm height | Higher profile and looser VBR tolerance; less suitable for space-constrained or precision-clamp designs | Select when legacy SMA footprint compatibility is required and ±5 % tolerance is acceptable |
| SMF24A | 24 V VRWM, ±5 % VBR, same SMF package but lower 200 W PPPM rating | Insufficient for 400 W surge events; limited to lower-energy transients | Choose only for cost-sensitive, low-surge-risk applications where 200 W rating suffices |
Compared with SMAJ24A and SMF24A, VTVS25GSMF-M3-18 provides tighter ±2 % VBR tolerance, higher 400 W surge rating in a lower-profile SMF package, and optimized capacitance for high-speed interfaces-making it preferable for next-generation automotive and industrial signal-line protection.
Availability
VTVS25GSMF-M3-18 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive sensor signal conditioning, and industrial I/O port hardening requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for VTVS25GSMF-M3-18 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The VTVS eSMP® Series targets high-density, high-performance ESD and surge protection in compact surface-mount packages-designed specifically for modern high-speed data interfaces and harsh-environment electronics.
FAQ
What is the clamping voltage of VTVS25GSMF-M3-18 at its rated peak pulse current?
The VTVS25GSMF-M3-18 has a maximum reverse clamping voltage (VC) of 42 V at its specified peak pulse current (IPPM) of 9.35 A under a 10/1000 μs waveform. This value ensures downstream circuitry remains within safe voltage limits during standardized surge events, and is measured per the conditions defined in Vishay document 85891.
Is VTVS25GSMF-M3-18 suitable for automotive applications?
Yes, VTVS25GSMF-M3-18 is offered in AEC-Q101 qualified versions (e.g., VTVS25GSMF-HM3-18). Even the standard VTVS25GSMF-M3-18 supports junction temperatures up to +175 °C and meets IEC 61000-4-2 ±30 kV ESD immunity-key requirements for under-hood and body-control module deployments.
What does the "G" in VTVS25GSMF-M3-18 indicate?
The "G" in VTVS25GSMF-M3-18 denotes ±2 % tolerance on the reverse breakdown voltage (VBR), distinguishing it from "A"-suffix variants (±5 %). This tighter tolerance enables more precise overvoltage triggering in sensitive circuits where margin control is critical, such as regulated power rail monitoring.
Does VTVS25GSMF-M3-18 require a heatsink for 400 W surge handling?
No external heatsink is required for single-event 400 W surge handling because the 10/1000 μs pulse duration is too short for significant thermal accumulation. The device's RthJL of 20 K/W and 175 °C max junction temperature are sufficient for transient dissipation when mounted per recommended PCB footprint and copper area guidelines.
How does the capacitance of VTVS25GSMF-M3-18 affect high-speed signal integrity?
VTVS25GSMF-M3-18 exhibits 433 pF typical capacitance at 0 V bias and 1 MHz, which introduces minimal loading on signals below ~100 Mbps. For USB 2.0 (480 Mbps), layout best practices-such as symmetric placement and minimized trace length-maintain eye diagram integrity, as confirmed in Vishay's application guidance for SMF-series TVS devices.
VTVS25GSMF-M3-18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.2V
- Voltage - Breakdown (Min):
- 29.4V
- Voltage - Clamping (Max) @ Ipp:
- 42V
- Current - Peak Pulse (10/1000µs):
- 9.35A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 433pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS25GSMF-M3-18 FAQ
1.How can I place an order for VTVS25GSMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS25GSMF-M3-18 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for VTVS25GSMF-M3-18 reliable?
The price and inventory of VTVS25GSMF-M3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS25GSMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS25GSMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS25GSMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS25GSMF-M3-18?
VTVS25GSMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS25GSMF-M3-18 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for VTVS25GSMF-M3-18?
For technical support, including VTVS25GSMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS25GSMF-M3-18 requirements.
6.How does Aetrix verify that VTVS25GSMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS25GSMF-M3-18 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VTVS25GSMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS25GSMF-M3-18?
All VTVS25GSMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS25GSMF-M3-18, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The VTVS25GSMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS25GSMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS25GSMF-M3-18 Tags
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