My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VTVS15ASMF-HM3-08
- Part No.:
- VTVS15ASMF-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
VTVS15ASMF-HM3-08.pdf
- Description:
- TVS DIODE 15.1VWM 25VC DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:23,439
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VTVS15ASMF-HM3-08 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 15.1 V stand-off voltage (VRWM), 17.1–18.8 V reverse breakdown (VBR at IT = 1 mA), 25 V clamping voltage (VC at IPPM), and ±30 kV IEC 61000-4-2 ESD immunity.
For engineers reviewing the VTVS15ASMF-HM3-08 datasheet, VTVS15ASMF-HM3-08 pinout, VTVS15ASMF-HM3-08 application, or VTVS15ASMF-HM3-08 equivalent, this device is selected for high-reliability, low-capacitance (684 pF) overvoltage protection where fast response time, AEC-Q101 qualification readiness, and halogen-free compliance are required.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, triggered when reverse voltage exceeds VRWM = 15.1 V. Its 10/1000 μs waveform-rated 400 W peak pulse power (PPP) and 15.47 A peak pulse current (IPPM) enable robust protection against IEC 61000-4-5 surges and contact/air discharge events.
The device uses "Low-Noise" technology for sub-nanosecond response, achieving 25 V clamping at 15.47 A while maintaining 684 pF capacitance at 0 V - critical for preserving signal integrity on high-speed data lines like CAN FD or automotive LIN bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 15.1 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V automotive or industrial supply rails. |
| Breakdown Voltage (VBR) | 17.1–18.8 V at IT = 1 mA - tight ±5 % tolerance ensures predictable turn-on across temperature and production lots. |
| Clamping Voltage (VC) | 25 V at IPPM = 15.47 A - limits downstream IC voltage stress during 10/1000 μs transients to safe levels for 3.3 V/5 V logic interfaces. |
| Peak Pulse Power (PPP) | 400 W - supports sustained surge energy handling per IEC 61000-4-5 Level 3 (1 kV/2 Ω) without degradation. |
| Capacitance (CD) | 684 pF at VR = 0 V, f = 1 MHz - low enough for USB 2.0 and CAN bus protection without signal distortion or timing skew. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds automotive and industrial ESD immunity requirements for exposed connectors. |
| Operating Temperature | −55 °C to +175 °C - qualified for under-hood automotive environments and industrial control cabinets with wide thermal cycling. |
Pinout & Package
SMF (DO-219AB) low-profile surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, halogen-free molding compound, MSL level 1, wave/reflow solderable. Cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input/line side connection | Connected to protected line (e.g., USB D+); conducts during forward surge or ESD event toward ground path. |
| Cathode (Pin 2) | Clamping reference terminal | Connected to system ground; establishes clamping threshold relative to ground; cathode marking aligns with PCB silkscreen polarity indicator. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables single-device protection against IEC 61000-4-5 surges up to 1 kV on 50 Ω source impedance without derating. |
| ±5 % VBR tolerance | Guarantees consistent clamping onset across production batches, reducing design margin uncertainty in safety-critical systems. |
| 684 pF capacitance | Preserves signal rise/fall times on 480 Mbps USB 2.0 links and avoids resonance issues on CAN FD buses up to 5 Mbps. |
| ±30 kV ESD immunity | Meets ISO 10605 and IEC 61000-4-2 requirements for automotive infotainment ports and industrial HMI touch interfaces. |
| AEC-Q101 qualification option | HM3 suffix indicates halogen-free, lead-free, RoHS-compliant construction compatible with automotive-grade sourcing programs. |
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 from load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor signal line and chassis ground to shunt transients before reaching MCU ADC input. Use Value: 25 V clamping ensures downstream 3.3 V microcontroller I/O remains within absolute maximum ratings during 100 V/50 ms load dump events. |
Use Scenario: Safeguarding USB 2.0 D+/D− lines on host controllers or peripheral devices against hot-plug ESD and cable-induced surges. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector footprint to minimize stub length and preserve 480 Mbps eye diagram integrity. Use Value: 684 pF capacitance adds <1% signal attenuation at 240 MHz fundamental frequency, avoiding USB enumeration failures. |
| Industrial CAN Bus Node | Smart Meter Communication Port |
|
Use Scenario: Shielding CAN_H/CAN_L differential pair in factory automation nodes from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Dual unidirectional TVS (one per line) referenced to common ground, providing symmetrical clamping without affecting common-mode rejection. Use Value: 400 W rating supports 10/1000 μs surge currents up to 15.47 A, meeting IEC 61000-4-5 Level 3 requirements for Class A equipment. |
Use Scenario: Securing RS-485 or PLC communication ports in utility smart meters exposed to outdoor ESD and conducted noise. IC Role / Device Role / Timing Role: Standoff-rated TVS placed on each data line (A/B) to clamp transients before transceiver inputs, with ground return via low-inductance path. Use Value: −55 °C to +175 °C operating range ensures reliability in meter enclosures subject to desert or tropical ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/57T | Same VRWM (15 V), but higher VC = 24.4 V at 15.4 A; SMA package (DO-214AC), larger footprint (4.5 × 2.7 mm). | Less suitable for space-constrained USB or automotive sensor layouts due to 2.6× larger area than SMF. | Select when legacy SMA footprint compatibility is required and board space permits. |
| TPSMD15A | Same VRWM (15 V), lower VC = 23.2 V at 17.2 A; SMD package (DO-214AB), 10 % tighter VBR tolerance (±3 %). | Better clamping performance but lacks AEC-Q101 qualification path and halogen-free certification of VTVS15ASMF-HM3-08. | Prefer for industrial non-automotive designs prioritizing lowest possible clamping voltage over automotive compliance. |
Compared with SMAJ15A-E3/57T and TPSMD15A, VTVS15ASMF-HM3-08 delivers optimal balance of compact DO-219AB packaging, AEC-Q101 readiness, halogen-free compliance, and verified 684 pF capacitance - making it the preferred choice for next-generation automotive and high-density consumer electronics.
Availability
VTVS15ASMF-HM3-08 is available at Aetrix Electronics and suitable for automotive sensor interfaces, USB 2.0 port protection, industrial CAN bus nodes, and smart meter communication ports requiring stable component supply and full traceability.
Supply support for VTVS15ASMF-HM3-08 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-speed, low-capacitance transient protection for automotive electronics and industrial connectivity - engineered for AEC-Q101 readiness, halogen-free compliance, and minimal PCB footprint.
FAQ
What is the clamping voltage of VTVS15ASMF-HM3-08 at its rated peak pulse current?
The VTVS15ASMF-HM3-08 has a maximum reverse clamping voltage (VC) of 25 V at its rated peak pulse current (IPPM) of 15.47 A under 10/1000 μs waveform conditions. This value is measured per standard test methods in the Vishay datasheet (Doc. #85891, Rev. 2.2) and ensures downstream circuitry remains within safe voltage limits during surge events. The VTVS15ASMF-HM3-08 achieves this clamping performance while maintaining unidirectional operation and low leakage (<0.05 μA at VRWM).
Is VTVS15ASMF-HM3-08 qualified to AEC-Q101?
The VTVS15ASMF-HM3-08 is not itself AEC-Q101 qualified, but it belongs to the Vishay eSMP® Series for which AEC-Q101 qualified versions are available (e.g., VTVS15ASMF-HM3-08 with AEC-Q101 suffix). The HM3 suffix denotes halogen-free, lead-free, RoHS-compliant construction and qualifies the part for automotive-grade sourcing programs pending final qualification testing. VTVS15ASMF-HM3-08 shares identical electrical and mechanical specifications with qualified variants.
What does the "HM3-08" suffix mean in VTVS15ASMF-HM3-08?
In VTVS15ASMF-HM3-08, "HM3" indicates halogen-free, lead-free, RoHS-compliant terminations with tin plating, and "08" specifies 3,000 units per 7-inch reel (8 mm tape width, MOQ = 30,000). This packaging format enables automated SMT placement and supports high-volume manufacturing. The VTVS15ASMF-HM3-08 conforms to J-STD-020 MSL level 1 and withstands peak reflow temperatures up to 260 °C.
Can VTVS15ASMF-HM3-08 be used for bidirectional protection?
No, VTVS15ASMF-HM3-08 is a unidirectional TVS diode and must not be used for bidirectional protection. Its electrical characteristics - including specified VRWM, VBR, and VC - apply only to reverse-biased operation. For bidirectional applications (e.g., AC lines or symmetric data buses), a dedicated bidirectional TVS such as VTVS15BSMF-HM3-08 or dual-series configuration is required. Using VTVS15ASMF-HM3-08 in bidirectional mode risks forward conduction and failure during positive transients.
What is the thermal resistance of VTVS15ASMF-HM3-08?
The thermal resistance junction-to-lead (RthJL) of VTVS15ASMF-HM3-08 is 20 K/W when mounted on an infinite heat sink, as specified in the Vishay datasheet (Document #85891). This value reflects the device's ability to dissipate surge energy as heat through its leads. In real-world PCB layouts, actual thermal performance depends on copper area, layer count, and via density - typical RthJA values exceed 100 K/W, so layout optimization is essential for repeated surge duty cycles. The VTVS15ASMF-HM3-08 supports continuous operation from −55 °C to +175 °C.
VTVS15ASMF-HM3-08 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):
- 15.1V
- Voltage - Breakdown (Min):
- 17.1V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 15.47A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 684pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
VTVS15ASMF-HM3-08 FAQ
1.How can I place an order for VTVS15ASMF-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VTVS15ASMF-HM3-08 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 VTVS15ASMF-HM3-08 reliable?
The price and inventory of VTVS15ASMF-HM3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VTVS15ASMF-HM3-08 is usually 5 days.
3.What payment methods are accepted for VTVS15ASMF-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VTVS15ASMF-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VTVS15ASMF-HM3-08?
VTVS15ASMF-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VTVS15ASMF-HM3-08 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 VTVS15ASMF-HM3-08?
For technical support, including VTVS15ASMF-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VTVS15ASMF-HM3-08 requirements.
6.How does Aetrix verify that VTVS15ASMF-HM3-08 is sourced from the original manufacturer or authorized distributors?
All VTVS15ASMF-HM3-08 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 VTVS15ASMF-HM3-08 meets industry standards.
7.What is the process for return or replacement of VTVS15ASMF-HM3-08?
All VTVS15ASMF-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VTVS15ASMF-HM3-08, 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 VTVS15ASMF-HM3-08 part is unused and in its original packaging.
Return procedure for VTVS15ASMF-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VTVS15ASMF-HM3-08 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 …
