My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS17ASMF-HM3-18
- Part No.:
- VTVS17ASMF-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS17ASMF-HM3-18.pdf
- Description:
- TVS DIODE 16.9VWM 28VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,698
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS17ASMF-HM3-18 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, and automotive sensor interfaces. It features a 16.9 V stand-off voltage (VRWM), 19.0–21.0 V reverse breakdown voltage (VBR), and clamps to ≤28 V at 13.79 A peak pulse current (10/1000 μs).
For engineers reviewing the VTVS17ASMF-HM3-18 datasheet, VTVS17ASMF-HM3-18 pinout, VTVS17ASMF-HM3-18 application, or VTVS17ASMF-HM3-18 equivalent, this device is selected for robust ±30 kV IEC 61000-4-2 ESD protection, low clamping ratio (VC/VBR ≈ 1.4), and halogen-free, AEC-Q101-qualified construction suitable for automotive and industrial PCBs.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp with fast response time enabled by "Low-Noise" silicon technology. Its 1.08 mm height and SOD-123W-compatible SMF package supports high-density layouts and automated reflow assembly.
The device sustains 400 W peak pulse power (10/1000 μs), exhibits ≤0.05 μA leakage at VRWM, and maintains stable performance across -55 °C to +175 °C junction temperature range - critical for under-hood automotive and industrial control applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 3 surges) |
| Stand-off Voltage (VRWM) | 16.9 V (maximum continuous reverse voltage before conduction; matches 15 V rail systems) |
| Breakdown Voltage (VBR) | 19.0–21.0 V at IT = 1 mA (tight ±5 % tolerance ensures predictable turn-on threshold) |
| Clamping Voltage (VC) | ≤28 V at IPPM = 13.79 A (low VC/VBR ratio ~1.4 improves system-level overvoltage margin) |
| ESD Rating | ±30 kV contact / ±30 kV air (IEC 61000-4-2 compliance eliminates need for external ESD stages) |
| Junction Temp. Range | -55 °C to +175 °C (supports operation in engine control units and industrial motor drives) |
| Capacitance (CD) | 606 pF at VR = 0 V, 1 MHz (suitable for <10 Mbps data lines; not for high-speed USB 3.0 or PCIe) |
Pinout & Package
SMF (DO-219AB) package: low-profile surface-mount case with cathode marking bar; compatible with SOD-123W footprint; 3.9 mm × 1.9 mm × 1.08 mm dimensions; MSL level 1, reflow-compatible up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to protected line's ground or low-side return path |
| Cathode | Transient current sink terminal | Connected to protected signal line; conducts surge current to ground during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles IEC 61000-4-5 surge currents without degradation in compact SMF package |
| ±5 % VBR tolerance | Ensures consistent clamping onset across production lots for reliable system-level protection design |
| ±30 kV ESD immunity | Meets highest IEC 61000-4-2 contact/air discharge requirements without additional protection layers |
| Halogen-free & RoHS-compliant | Supports environmental compliance for automotive OEMs and industrial equipment certifications |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
Applications
| Automotive Sensor Interface | USB 2.0 Port Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground to clamp induced surges before reaching MCU input pins. Use Value: Prevents latch-up or permanent damage to 16-bit ADC inputs while maintaining <1 μA leakage at 12 V nominal supply. |
Use Scenario: Safeguarding downstream USB 2.0 data lines (D+/D−) on host controllers against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with each data line to limit voltage excursion without distorting 480 Mbps signaling integrity. Use Value: Delivers ±30 kV ESD protection while adding only 606 pF capacitance - within USB 2.0 eye-diagram margin for full-speed operation. |
| Industrial CAN Bus Node | DC Power Input Protection |
Use Scenario: Secondary surge suppression on CAN_H/CAN_L lines in factory automation gateways subjected to long cable runs and ground potential differences. IC Role / Device Role / Timing Role: Standoff-rated TVS pair (one per line) referenced to common-mode ground, absorbing differential and common-mode transients. Use Value: Clamps to ≤28 V within nanoseconds, preserving CAN transceiver common-mode range (±12 V) and preventing bus lockup. |
Use Scenario: Input-stage protection for 24 V industrial PLC I/O modules exposed to accidental 48 V miswiring or inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS connected between VCC and GND to shunt overvoltage energy before LDO or DC-DC converter input stage. Use Value: Withstands 400 W pulses and operates up to +175 °C ambient, enabling placement near high-power switching components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17A-E3/57T | Same 17 V standoff, but SMA package (DO-214AC); 400 W rating; ±5 % VBR; 28 V VC | Larger footprint (4.5 mm × 2.7 mm vs. 3.9 mm × 1.9 mm); higher thermal resistance (RthJL = 35 K/W) | Choose when existing layout uses SMA and board space is not constrained. |
| 1.5SMC17A | Same electrical specs, but SMC (DO-214AB) package; 400 W; ±5 % VBR; 28 V VC | Height 2.6 mm (vs. 1.08 mm); incompatible with ultra-low-profile designs; MSL level 1 still applies | Prefer for legacy designs requiring SMC footprint compatibility and higher mechanical robustness. |
Compared with SMAJ17A-E3/57T and 1.5SMC17A, VTVS17ASMF-HM3-18 delivers identical clamping performance in a 45 % smaller footprint and 59 % lower profile - critical for modern automotive ECUs and portable industrial sensors where Z-height and PCB area are tightly constrained.
Availability
VTVS17ASMF-HM3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 port protection, industrial CAN bus nodes, and DC power input protection requiring stable component supply and long-term lifecycle support.
Supply support for VTVS17ASMF-HM3-18 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-reliability transient suppression in space-constrained environments - engineered specifically for AEC-Q101 compliance, low-profile packaging, and robust ESD/surge performance in harsh operating conditions.
FAQ
What is the maximum clamping voltage of the VTVS17ASMF-HM3-18 under peak pulse conditions?
The VTVS17ASMF-HM3-18 clamps to a maximum of 28 V when subjected to its rated peak pulse current of 13.79 A (10/1000 μs waveform). This value is guaranteed across temperature and process variation, and is measured at the device terminals under standardized test conditions defined in IEC 61000-4-5 Annex A.
Is the VTVS17ASMF-HM3-18 suitable for bidirectional signal lines like RS-485?
No - the VTVS17ASMF-HM3-18 is a unidirectional TVS diode and must be used with polarity-aware placement (cathode toward protected line). For bidirectional lines such as RS-485, a symmetric dual-diode configuration or a dedicated bidirectional part like VTVS17BSMF-HM3-18 is required. Using VTVS17ASMF-HM3-18 on bidirectional signals risks forward conduction during normal operation.
Does the VTVS17ASMF-HM3-18 meet AEC-Q101 qualification requirements?
Yes - the VTVS17ASMF-HM3-18 is explicitly AEC-Q101 qualified per the Vishay datasheet Rev. 2.2 (19-Nov-2021), Document Number 85891. Qualification includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114, confirming suitability for automotive under-hood and body electronics applications.
What is the moisture sensitivity level (MSL) rating for the VTVS17ASMF-HM3-18?
The VTVS17ASMF-HM3-18 has a moisture sensitivity level (MSL) rating of level 1 per J-STD-020, meaning it is not moisture-sensitive and may be stored indefinitely at ambient conditions without dry-pack requirements or floor-life limitations prior to reflow soldering.
How does the 606 pF capacitance of the VTVS17ASMF-HM3-18 affect high-speed data lines?
The VTVS17ASMF-HM3-18 exhibits 606 pF typical capacitance at 0 V bias and 1 MHz, making it appropriate for DC power rails and low-to-medium speed interfaces (e.g., USB 2.0, CAN, LIN) but unsuitable for high-speed differential pairs like USB 3.0 (>5 Gbps), HDMI, or PCIe, where sub-1 pF capacitance is typically required to avoid signal integrity degradation.
VTVS17ASMF-HM3-18 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):
- 16.9V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 28V
- Current - Peak Pulse (10/1000µs):
- 13.79A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 606pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS17ASMF-HM3-18 FAQ
1.How can I place an order for VTVS17ASMF-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS17ASMF-HM3-18 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 VTVS17ASMF-HM3-18 reliable?
The price and inventory of VTVS17ASMF-HM3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS17ASMF-HM3-18 is usually 5 days.
3.What payment methods are accepted for VTVS17ASMF-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS17ASMF-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS17ASMF-HM3-18?
VTVS17ASMF-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS17ASMF-HM3-18 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 VTVS17ASMF-HM3-18?
For technical support, including VTVS17ASMF-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS17ASMF-HM3-18 requirements.
6.How does Aetrix verify that VTVS17ASMF-HM3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS17ASMF-HM3-18 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 VTVS17ASMF-HM3-18 meets industry standards.
7.What is the process for return or replacement of VTVS17ASMF-HM3-18?
All VTVS17ASMF-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS17ASMF-HM3-18, 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 VTVS17ASMF-HM3-18 part is unused and in its original packaging.
Return procedure for VTVS17ASMF-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS17ASMF-HM3-18 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
