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Vishay General Semiconductor - Diodes Division VTVS23ASMF-M3-18
- Part No.:
- VTVS23ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS23ASMF-M3-18.pdf
- Description:
- TVS DIODE 22.6VWM 38VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,910
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Product details
Overview
VTVS23ASMF-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. It features a 22.6 V maximum stand-off voltage (VRWM), 25.7–28.4 V reverse breakdown voltage (VBR) at 1 mA, 38 V clamping voltage (VC) at 10.09 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity-used in automotive infotainment power rails and USB-C port protection.
For engineers reviewing the VTVS23ASMF-M3-18 datasheet, VTVS23ASMF-M3-18 pinout, VTVS23ASMF-M3-18 application, or VTVS23ASMF-M3-18 equivalent, key selection criteria include clamping performance under 10/1000 μs surges, low capacitance (480 pF) for signal integrity, AEC-Q101 qualification status, and compatibility with SOD-123W footprint constraints in space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 25.7–28.4 V breakdown range. Its 38 V clamping voltage at 10.09 A ensures downstream ICs see limited overvoltage during 400 W 10/1000 μs transients, while 480 pF junction capacitance minimizes signal distortion on data/power lines up to ~10 MHz.
Rated for -55 °C to +175 °C junction temperature and qualified to AEC-Q101, the device supports automotive-grade reliability. The SMF (DO-219AB) package enables wave and reflow soldering, with MSL level 1 moisture sensitivity and halogen-free molding compound compliant to Vishay's material categorization standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform): sustains high-energy surges without failure in automotive load-dump or ISO 7637-2 scenarios |
| Stand-off Voltage (VRWM) | 22.6 V max: blocks normal operation voltage while remaining non-conductive until transient exceeds threshold |
| Breakdown Voltage (VBR) | 25.7–28.4 V at IT = 1 mA: defines precise avalanche initiation point for repeatable clamping behavior |
| Clamping Voltage (VC) | 38 V at IPPM = 10.09 A: limits voltage seen by protected ICs during worst-case surge events |
| Junction Capacitance (CD) | 480 pF at VR = 0 V, f = 1 MHz: low enough to avoid signal degradation on USB 2.0 or CAN FD lines |
| ESD Immunity | ±30 kV contact / ±30 kV air (IEC 61000-4-2): meets highest industrial and automotive ESD robustness requirements |
| Operating Temperature | -55 °C to +175 °C: supports under-hood and powertrain applications without derating |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm body, cathode marked by bar, compatible with SOD-123W footprint and reflow/wave soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground; completes clamping path during reverse transient |
| Cathode | Protected line input | Connected to line being protected (e.g., 24 V supply rail); conducts avalanche current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles high-energy transients per ISO 7637-2 Pulse 5a without degradation |
| ±5 % VBR tolerance (A-suffix) | Ensures tight clamping threshold control across production lots for predictable protection margin |
| Low 480 pF capacitance | Maintains signal integrity on medium-speed data lines (e.g., LIN, SENT, or 24 V sensor outputs) |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock tests |
| Halogen-free & RoHS-compliant | Meets EU ELV and automotive OEM environmental compliance requirements |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: 24 V supply rail in BCM exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping positive-going surges before they reach MCU power regulators. Use Value: Limits voltage to ≤38 V during 10.09 A 10/1000 μs pulses, preventing regulator latch-up or burnout. |
Use Scenario: 24 V digital input channel in programmable logic controller subject to field wiring ESD. IC Role / Device Role / Timing Role: Primary ESD shunt protecting optocoupler input stage from ±30 kV contact discharge. Use Value: Clamps transients within <1 ns, preserving signal timing and avoiding false triggering of input latches. |
| USB-C Power Delivery (PD) VBUS Line | Automotive Infotainment Display Backlight Supply |
Use Scenario: VBUS line (up to 20 V) in USB-C receptacle exposed to hot-plug and cable ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between VBUS and GND to absorb fast-rising ESD events. Use Value: 480 pF capacitance avoids degrading USB 2.0 eye diagram; 22.6 V VRWM allows full PD voltage range. |
Use Scenario: 24 V LED backlight driver output in center console display subjected to battery reversal and load dump. IC Role / Device Role / Timing Role: Secondary surge clamp after primary DC/DC converter, safeguarding LED driver IC. Use Value: 175 °C max junction temperature enables placement near heat-generating display drivers without thermal derating. |
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, 38.9 V VC @ 10.3 A, SMA package (DO-214AC), 1.5× larger footprint | Higher thermal resistance (RthJL = 40 K/W vs. 20 K/W), lower surge rating (400 W same, but lower IPPM margin) | Select when legacy SMA layout exists and AEC-Q101 not required |
| TPSMD24 | 24 V VRWM, 38.5 V VC @ 10.4 A, same SMF package, but only ±30 kV ESD (no AEC-Q101) | No automotive qualification; slightly higher leakage (1 μA vs. 0.05 μA at VRWM) | Select for cost-sensitive industrial designs where AEC-Q101 is not mandated |
Compared with SMAJ24A and TPSMD24, VTVS23ASMF-M3-18 delivers identical clamping performance in a smaller footprint, superior thermal dissipation (20 K/W), guaranteed AEC-Q101 qualification, and lower leakage-making it optimal for next-gen automotive electronics requiring high reliability and board space efficiency.
Availability
VTVS23ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and USB-C power delivery systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for VTVS23ASMF-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, and passive components for automotive, industrial, and computing markets.
The TransZorb® TVS family-including VTVS23ASMF-M3-18-is engineered for robust transient suppression in harsh environments, with emphasis on AEC-Q101 qualification, low clamping voltage, and compact packaging for modern electronics.
FAQ
What is the clamping voltage of VTVS23ASMF-M3-18 under a 10/1000 μs surge?
The VTVS23ASMF-M3-18 has a maximum reverse clamping voltage (VC) of 38 V at 10.09 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and ensures protected circuits remain below critical overvoltage thresholds during surge events. The VTVS23ASMF-M3-18 achieves this with minimal voltage overshoot due to its fast avalanche response.
Is VTVS23ASMF-M3-18 qualified for automotive applications?
Yes, VTVS23ASMF-M3-18 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock per automotive reliability standards. Its -55 °C to +175 °C operating range and halogen-free construction meet Tier-1 OEM requirements. The VTVS23ASMF-M3-18 is commonly deployed in BCM, ADAS sensors, and infotainment systems.
What does the "-M3-18" suffix indicate in VTVS23ASMF-M3-18?
The "-M3-18" suffix denotes tape-and-reel packaging: "M3" specifies 3 k per 7″ reel (8 mm tape), and "-18" indicates RoHS-compliant, lead (Pb)-free, tin-plated terminations. This matches Vishay's ordering code convention in Document 85891 and confirms the part is supplied in production-ready format with moisture sensitivity level (MSL) 1 handling.
How does the 480 pF capacitance of VTVS23ASMF-M3-18 affect circuit performance?
The 480 pF typical junction capacitance of VTVS23ASMF-M3-18 at 0 V bias introduces minimal loading on DC or low-frequency lines (e.g., 24 V power rails), but may attenuate signals above ~3 MHz. It is suitable for LIN, SENT, and 24 V analog sensor outputs, though not recommended for USB 3.0 or HDMI. The VTVS23ASMF-M3-18 balances low clamping voltage with acceptable signal integrity for most automotive and industrial interfaces.
Can VTVS23ASMF-M3-18 replace older SMAJ24A devices on existing PCBs?
VTVS23ASMF-M3-18 uses the SMF (DO-219AB) package, which is not pin-compatible with the SMA (DO-214AC) package of SMAJ24A-footprint dimensions differ (3.9 × 1.9 mm vs. 4.5 × 2.7 mm). While electrical specs are similar, direct replacement requires PCB redesign. For drop-in alternatives, consider SMF-24A variants. The VTVS23ASMF-M3-18 offers improved thermal resistance and AEC-Q101 qualification over SMAJ24A.
VTVS23ASMF-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):
- 22.6V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 38V
- Current - Peak Pulse (10/1000µs):
- 10.09A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 480pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS23ASMF-M3-18 FAQ
1.How can I place an order for VTVS23ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS23ASMF-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 VTVS23ASMF-M3-18 reliable?
The price and inventory of VTVS23ASMF-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 VTVS23ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS23ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS23ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS23ASMF-M3-18?
VTVS23ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS23ASMF-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 VTVS23ASMF-M3-18?
For technical support, including VTVS23ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS23ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS23ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS23ASMF-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 VTVS23ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS23ASMF-M3-18?
All VTVS23ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS23ASMF-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 VTVS23ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS23ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS23ASMF-M3-18 Tags
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