My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS36ASMF-M3-18
- Part No.:
- VTVS36ASMF-M3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS36ASMF-M3-18.pdf
- Description:
- TVS DIODE 36VWM 61VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,331
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS36ASMF-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 36.0 V stand-off voltage (VRWM), 40.9–45.2 V reverse breakdown voltage (VBR at IT = 1 mA), and clamps to ≤61 V at 6.24 A peak pulse current (10/1000 μs), with ±5 % VBR tolerance and 342 pF capacitance at 0 V.
For engineers reviewing the VTVS36ASMF-M3-18 datasheet, VTVS36ASMF-M3-18 pinout, VTVS36ASMF-M3-18 application, or VTVS36ASMF-M3-18 equivalent, this device is selected for robust IEC 61000-4-2 ±30 kV contact/air discharge protection in space-constrained automotive and industrial interfaces where low-profile SOD-123W-compatible packaging and fast clamping response are critical.
Technical Context
This unidirectional TVS diode operates within a -55 °C to +175 °C junction temperature range and delivers 400 W peak pulse power under standardized 10/1000 μs waveform conditions. Its low-noise architecture ensures sub-nanosecond response time, enabling effective suppression of fast transients such as ESD and inductive switching spikes.
The device uses silicon avalanche technology with precise ±5 % breakdown voltage tolerance and exhibits a thermal resistance of 20 K/W (junction-to-lead, mounted on infinite heat sink). Its 342 pF capacitance at 0 V and 1.8 V forward clamping at 50 A supports use in signal-line protection without excessive signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - sustains high-energy transients per IEC 61000-4-5 (10/1000 μs) |
| Stand-off Voltage (VRWM) | 36.0 V - maximum continuous reverse working voltage before leakage exceeds 0.05 μA |
| Breakdown Voltage (VBR) | 40.9–45.2 V at IT = 1 mA - defines onset of avalanche conduction with ±5 % tolerance |
| Clamping Voltage (VC) | ≤61 V at IPPM = 6.24 A - limits protected circuit voltage during worst-case surge |
| Capacitance (CD) | 342 pF at VR = 0 V, f = 1 MHz - impacts high-speed signal integrity in data lines |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - meets automotive and industrial immunity requirements |
| Package | SMF (DO-219AB) - low-profile surface-mount outline compatible with SOD-123W footprint |
Pinout & Package
SMF (DO-219AB) package: 2-terminal unidirectional diode with cathode marked by bar on top surface. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H); recommended footprint per Vishay S8-V-3915.01-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to I/O line being safeguarded; voltage referenced to anode during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables reliable protection against high-energy surges in 12 V/24 V automotive and industrial bus lines |
| ±5 % VBR tolerance | Ensures tight clamping window for predictable protection margin above system operating voltage |
| Low-profile SMF package | Reduces PCB real estate and enables placement near connectors or IC pins for shortest possible protection path |
| IEC 61000-4-2 ±30 kV ESD rating | Meets stringent immunity requirements for touchpoints and exposed ports in automotive infotainment and ADAS modules |
| Halogen-free, RoHS-compliant | Supports environmental compliance for global OEM supply chains and end-of-life recycling mandates |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting LIN bus lines in door module ECUs from load dump and ESD events during assembly and field operation. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN transceiver pin and chassis ground to clamp transients before they reach the PHY. Use Value: Prevents latch-up or damage to the LIN transceiver IC while maintaining <36 V stand-off to avoid interference with 12 V nominal bus signaling. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair inputs in programmable logic controllers (PLCs) exposed to factory floor ESD and inductive coupling. IC Role / Device Role / Timing Role: Dual TVS configuration (one per line) referenced to common ground, providing symmetric clamping for bidirectional bus signals. Use Value: Limits voltage excursion to ≤61 V during 6.24 A surge, preserving CAN physical layer integrity without adding >342 pF loading that would degrade bit rate timing. |
| USB 2.0 Port Protection | Smart Meter RS-485 Interface |
|
Use Scenario: Shielding USB D+/D- lines in automotive diagnostic tools from accidental hot-plug ESD and cable-induced transients. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS connected from each data line to ground, leveraging 342 pF to minimize signal rise-time degradation. Use Value: Maintains USB 2.0 full-speed (12 Mbps) eye diagram integrity while delivering ±30 kV IEC 61000-4-2 immunity at the connector. |
Use Scenario: Protecting RS-485 transceivers in utility smart meters installed in electrically noisy substations and distribution cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on A/B bus lines referenced to local ground, absorbing lightning-induced surges up to 400 W without failure. Use Value: Ensures long-term reliability under repeated 10/1000 μs surges while operating continuously at 175 °C junction temperature in sealed meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Same 36 V VRWM, but SMA package (DO-214AC); 400 W rating; ±5 % VBR; 350 pF typical capacitance | Larger footprint (4.5 × 2.7 mm vs. 3.9 × 1.9 mm); higher thermal resistance (35 K/W vs. 20 K/W) | Preferred when existing layout uses SMA footprints or requires higher mechanical robustness; not drop-in for SMF-restricted boards |
| 1.5SMC36A | Same 36 V VRWM, SMC package (DO-214AB); 1500 W rating; ±5 % VBR; 400 pF typical capacitance | Higher power handling but larger size (7.1 × 6.2 mm); higher capacitance degrades high-speed signal integrity | Selected for higher-energy surge environments (e.g., outdoor telecom); unsuitable for space-constrained USB or CAN designs |
Compared with SMAJ36A-E3/57T and 1.5SMC36A, the VTVS36ASMF-M3-18 offers superior board-space efficiency and thermal performance in compact layouts, while maintaining identical protection thresholds-making it optimal for next-generation automotive ECUs and industrial edge nodes where size and thermal management are critical.
Availability
VTVS36ASMF-M3-18 is available at Aetrix Electronics and suitable for automotive body electronics, industrial communication interfaces, and smart energy metering systems requiring stable component supply and long-term lifecycle support.
Supply support for VTVS36ASMF-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 series is part of Vishay's TransZorb® TVS platform, engineered specifically for high-speed, low-capacitance ESD and surge protection in space-constrained, thermally demanding applications across automotive and industrial electronics.
FAQ
What is the maximum clamping voltage of the VTVS36ASMF-M3-18 under rated surge conditions?
The VTVS36ASMF-M3-18 clamps to a maximum of 61 V when subjected to its rated peak pulse current of 6.24 A (10/1000 μs waveform). This value is measured at the device terminals and defines the upper voltage limit imposed on the protected circuit during transient events, ensuring downstream ICs remain within safe operating voltage margins.
Is the VTVS36ASMF-M3-18 qualified to AEC-Q101 for automotive use?
The base VTVS36ASMF part is AEC-Q101 qualified when ordered with the "H" environmental code (e.g., VTVS36ASMF-HM3-18). The VTVS36ASMF-M3-18 variant itself carries RoHS-compliant, halogen-free, and lead-free terminations but does not include AEC-Q101 qualification unless explicitly specified in the ordering code.
What is the thermal resistance (RthJL) of the VTVS36ASMF-M3-18, and how does it affect PCB layout?
The VTVS36ASMF-M3-18 has a junction-to-lead thermal resistance of 20 K/W when mounted on an infinite heat sink. This low RthJL enables efficient heat dissipation through PCB copper pours connected to the leads, reducing thermal stress during repetitive surge events-designers should maximize copper area on both anode and cathode pads to leverage this capability.
Can the VTVS36ASMF-M3-18 be used in bidirectional signal lines like RS-485?
No-the VTVS36ASMF-M3-18 is a unidirectional TVS diode and must be used with polarity-aware placement (cathode toward protected line, anode to ground). For bidirectional lines such as RS-485, two VTVS36ASMF-M3-18 devices are required per line-one for each polarity-or a dedicated bidirectional TVS like VTVS36BSMF-M3-18 must be selected.
What is the moisture sensitivity level (MSL) and reflow profile for the VTVS36ASMF-M3-18?
The VTVS36ASMF-M3-18 is rated MSL level 1 per J-STD-020, meaning it is not moisture-sensitive and can be stored indefinitely at ambient conditions without dry-pack requirements. Its reflow profile allows peak temperatures up to 260 °C, fully compatible with standard lead-free soldering processes used in automotive and industrial manufacturing.
VTVS36ASMF-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):
- 36V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 61V
- Current - Peak Pulse (10/1000µs):
- 6.24A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 342pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS36ASMF-M3-18 FAQ
1.How can I place an order for VTVS36ASMF-M3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS36ASMF-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 VTVS36ASMF-M3-18 reliable?
The price and inventory of VTVS36ASMF-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 VTVS36ASMF-M3-18 is usually 5 days.
3.What payment methods are accepted for VTVS36ASMF-M3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS36ASMF-M3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS36ASMF-M3-18?
VTVS36ASMF-M3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS36ASMF-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 VTVS36ASMF-M3-18?
For technical support, including VTVS36ASMF-M3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS36ASMF-M3-18 requirements.
6.How does Aetrix verify that VTVS36ASMF-M3-18 is sourced from the original manufacturer or authorized distributors?
All VTVS36ASMF-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 VTVS36ASMF-M3-18 meets industry standards.
7.What is the process for return or replacement of VTVS36ASMF-M3-18?
All VTVS36ASMF-M3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS36ASMF-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 VTVS36ASMF-M3-18 part is unused and in its original packaging.
Return procedure for VTVS36ASMF-M3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS36ASMF-M3-18 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 …
