My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T30AHM3_A/H
- Part No.:
- SM15T30AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T30AHM3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,775
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T30AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 30 V standoff voltage (VWM = 25.6 V), 41.5 V clamping voltage at 36 A IPPM, and AEC-Q101 qualified for automotive applications. It protects MOSFETs and sensor signal lines against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T30AHM3_A/H datasheet, SM15T30AHM3_A/H pinout, SM15T30AHM3_A/H application, or SM15T30AHM3_A/H equivalent, key selection criteria include clamping performance under 36 A surge, thermal resistance (RθJA = 75 °C/W), halogen-free RoHS compliance, and automotive qualification status per ordering code HM3_A/H.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, utilizing a glass-passivated silicon junction to achieve low inductance and fast response (<1 ns) to transient overvoltages. Its 10/1000 μs waveform rating reflects standardized lightning surge immunity testing per IEC 61000-4-5.
The device is designed for mounting on 8.0 mm × 8.0 mm copper pads per terminal to sustain its 1500 W peak pulse power rating and meets MSL Level 1 (260 °C reflow peak), enabling compatibility with automated SMT assembly processes without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 25.6 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below circuit rail voltage. |
| VBR (Breakdown Voltage) | 28.5–31.5 V at 1.0 mA - Confirmed avalanche initiation range; ensures reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 41.5 V at IPPM = 36 A (10/1000 μs) - Peak voltage seen by protected IC during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 1500 W - Sustained energy absorption capability under standardized lightning surge waveform; validates protection level for I/O line threats. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended pad layout; enables thermal derating calculations up to +150 °C TJ max. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; designated by HM3 suffix. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or lower-potential node in unidirectional configuration. | Provides reference return path during clamping; must be routed with low-inductance trace to minimize voltage overshoot. |
| Cathode | Protected line connection; marked by molded band; reverse-biased during normal operation. | Connected to I/O line or power rail requiring protection; clamps to Anode when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Validates robustness against IEC 61000-4-5 Level 4 surges on automotive CAN/LIN or industrial sensor interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on downstream ICs-e.g., ensures <42 V seen by 3.3 V or 5 V logic inputs during 36 A surge. |
| Halogen-free, RoHS-compliant (HM3) | Meets automotive OEM environmental requirements and enables use in sealed, high-reliability modules without outgassing risk. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-bake requirement for SMT assembly; supports single-pass reflow in high-volume automotive PCB manufacturing. |
| AEC-Q101 qualification | Confirms qualification for permanent installation in passenger vehicle ECUs, ADAS sensors, and body control modules. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤41.5 V during 36 A surges, preventing ADC latch-up and ensuring signal integrity across -40 °C to +125 °C ambient. |
Use Scenario: Shielding RS-485 transceiver data lines in variable-frequency drives from switching noise generated by IGBT gate drivers. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode grounded) used on differential bus lines with common-mode choke. Use Value: Clamps common-mode spikes within 1 ns, preserving signal eye diagram integrity and meeting EN 61800-3 conducted emission limits. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
|
Use Scenario: Safeguarding primary-side controller ICs in AC-DC adapters against lightning surges coupled via mains input. IC Role / Device Role / Timing Role: Primary-side TVS placed across bridge rectifier output, upstream of bulk capacitor. Use Value: Absorbs 1500 W surge energy without failure, maintaining short-circuit fail-safe mode to prevent fire hazard per UL 62368-1. |
Use Scenario: Protecting line-driver ICs in DSLAM equipment from induced surges on twisted-pair subscriber loops. IC Role / Device Role / Timing Role: Unidirectional TVS mounted on each tip/ring line with series current-limiting resistor. Use Value: Withstands repeated 10/1000 μs surges up to 36 A while maintaining <1 μA leakage at 25.6 V, preserving line impedance stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30AHE3_A/H | Lower PPPM (400 W), same VWM (25.6 V), higher VC (48.4 V at 8.3 A), SMA package (smaller footprint, higher RθJA). | Not suitable for 1500 W threat levels; limited to low-energy ESD or secondary protection stages. | Select only if board space is constrained and surge threat is limited to IEC 61000-4-2 ±15 kV contact discharge. |
| SMCJ30AHE3_A/H | Same PPPM (1500 W), identical VWM/VC specs, but SMC package with identical dimensions-direct form-fit replacement. | Identical automotive qualification and thermal performance; differs only in tape-and-reel packaging code (E3 vs HM3). | Choose when halogen-free content is not required; otherwise SM15T30AHM3_A/H remains preferred for full AEC-Q101 + halogen-free compliance. |
Compared with SMAJ30AHE3_A/H and SMCJ30AHE3_A/H, the SM15T30AHM3_A/H delivers identical surge robustness in a halogen-free, AEC-Q101-qualified variant-making it the optimal choice for next-generation automotive ECUs where material compliance and qualification rigor are mandatory.
Availability
SM15T30AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial motor drive I/O protection, and telecom line interface designs requiring stable component supply, long-term lifecycle support, and guaranteed halogen-free compliance.
Supply support for SM15T30AHM3_A/H 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SM15T Series was developed specifically for high-energy transient suppression in automotive and industrial systems, targeting AEC-Q101 qualification, 1500 W surge handling, and seamless integration into automated SMT lines.
FAQ
What is the clamping voltage of SM15T30AHM3_A/H at its rated peak pulse current?
The SM15T30AHM3_A/H has a maximum clamping voltage (VC) of 41.5 V when subjected to its rated peak pulse current (IPPM) of 36 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T30AHM3_A/H maintains this clamping performance across its qualified operating temperature range.
Is SM15T30AHM3_A/H suitable for automotive applications?
Yes, SM15T30AHM3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via its HM3_A/H ordering code. It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 Rev D. The device is deployed in engine control units, ADAS camera modules, and body electronics where sustained reliability under vibration, thermal cycling, and surge exposure is mandatory. SM15T30AHM3_A/H meets these requirements without derating.
What does the "HM3" suffix indicate in SM15T30AHM3_A/H?
The "HM3" suffix in SM15T30AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering nomenclature, HM3 confirms compliance with JEDEC J-STD-20 moisture sensitivity Level 1, JESD 201 class 2 whisker resistance, and halogen-free material content per IEC 61249-2-21. This distinguishes SM15T30AHM3_A/H from commercial-grade E3/M3 variants and ensures suitability for sealed automotive modules.
How does SM15T30AHM3_A/H differ from SM15T30A-E3/57T?
SM15T30AHM3_A/H and SM15T30A-E3/57T share identical electrical specifications and SMC package, but differ in qualification and material content: SM15T30AHM3_A/H is halogen-free and AEC-Q101 qualified (HM3), whereas SM15T30A-E3/57T is RoHS-compliant commercial grade (E3) without automotive qualification. Both use 7″ tape-and-reel (A/H vs 57T), but only SM15T30AHM3_A/H is approved for permanent installation in automotive ECUs per OEM requirements.
What is the thermal resistance of SM15T30AHM3_A/H, and how does it affect layout?
SM15T30AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's mechanical drawing. To maintain TJ ≤ 150 °C under 6.5 W steady-state dissipation, designers must ensure adequate copper area and avoid thermal bottlenecks-especially critical in automotive under-hood applications where ambient temperatures exceed 85 °C. SM15T30AHM3_A/H performance degrades predictably above 25 °C per Figure 2.
SM15T30AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.5V
- Current - Peak Pulse (10/1000µs):
- 36A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SM15T30AHM3_A/H FAQ
1.How can I place an order for SM15T30AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T30AHM3_A/H 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 SM15T30AHM3_A/H reliable?
The price and inventory of SM15T30AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T30AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM15T30AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T30AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T30AHM3_A/H?
SM15T30AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T30AHM3_A/H 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 SM15T30AHM3_A/H?
For technical support, including SM15T30AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T30AHM3_A/H requirements.
6.How does Aetrix verify that SM15T30AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM15T30AHM3_A/H 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 SM15T30AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM15T30AHM3_A/H?
All SM15T30AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T30AHM3_A/H, 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 SM15T30AHM3_A/H part is unused and in its original packaging.
Return procedure for SM15T30AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T30AHM3_A/H 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 …
