My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC15AHE3_A/H
- Part No.:
- 1.5SMC15AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC15AHE3_A/H.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,210
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC15AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 15 V standoff voltage (VWM), 1500 W peak pulse power (10/1000 μs), and clamping voltage of 21.2 V at 70.8 A peak pulse current - deployed for overvoltage protection on DC power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the 1.5SMC15AHE3_A/H datasheet, 1.5SMC15AHE3_A/H pinout, 1.5SMC15AHE3_A/H application, or 1.5SMC15AHE3_A/H equivalent, key selection criteria include verified AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, and MSL Level 1 moisture sensitivity rating for lead-free reflow compatibility.
Technical Context
This device operates as a clamping-type TVS diode: under normal bias it presents high impedance (>1000 μA leakage at 12.8 V), then rapidly avalanches at breakdown voltage (14.3–15.8 V @ 1 mA) to limit transient overvoltages. Its glass-passivated junction ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
Designed for unidirectional DC protection, it features a single PN junction with cathode-band polarity identification, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and maintains thermal stability via RθJA = 75 °C/W and RθJL = 15 °C/W - enabling operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - maximum continuous reverse voltage before significant leakage; defines safe operating DC rail margin. |
| VBR (Breakdown) | 14.3–15.8 V @ 1 mA - guaranteed avalanche initiation range; ensures predictable clamping onset. |
| VC (Clamping) | 21.2 V @ 70.8 A - maximum voltage seen by protected circuit during 10/1000 μs transient; critical for IC survivability. |
| PPPM | 1500 W - peak pulse power handling capability; enables robust protection against lightning-induced surges per IEC 61000-4-5. |
| IPPM | 70.8 A - peak pulse current supported at VC; determines minimum series impedance required for coordination. |
| TJ max | +150 °C - maximum junction temperature; allows deployment in under-hood automotive environments. |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; compatible with standard Pb-free reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads; dimensions 7.75 × 6.22 × 2.62 mm (L × W × H); meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional configuration; must be routed with minimal inductance. |
| Cathode | Protected line connection / clamping node | Marked with band; connects to line being protected (e.g., 12 V supply rail); carries full surge current during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and surge endurance - required for ECU, ADAS, and body control modules. |
| 1500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without derating when mounted per recommended 8.0 × 8.0 mm copper pads. |
| Glass-passivated junction | Ensures stable breakdown voltage over lifetime and prevents parameter drift under thermal/humidity stress - critical for long-life industrial deployments. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure to downstream ICs; e.g., clamps 12 V rail transients to ≤21.2 V, preserving 3.3 V or 5 V logic integrity. |
| MSL Level 1, 260 °C peak reflow | Enables direct placement into standard high-volume SMT lines without baking or special handling - reduces manufacturing cost and risk. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VIN and GND, acting as last-line defense before LDO or DC-DC converter input. Use Value: Limits transients to ≤21.2 V during 1500 W surges, preventing latch-up or gate oxide damage in downstream PMICs and MCUs. |
Use Scenario: Safeguarding analog outputs (4–20 mA) and digital I/O (CAN, LIN) of industrial pressure/temperature sensors exposed to field wiring surges. IC Role / Device Role / Timing Role: Line-side TVS on sensor PCB, positioned upstream of ESD diodes and series resistors to absorb bulk energy before signal conditioning stage. Use Value: Clamps induced lightning surges (IEC 61000-4-5) within 1 ns response time, maintaining signal fidelity and avoiding false triggers in PLC-connected systems. |
| Consumer Power Adapter Input Protection | Telecom DC Feeder Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V/9 V/12 V USB-C PD adapter outputs to prevent damage during cable fault events. IC Role / Device Role / Timing Role: Unidirectional TVS across output terminals, activated only during abnormal overvoltage conditions beyond regulator tolerance. Use Value: Withstands 70.8 A peak pulses while holding output below 21.2 V - avoids catastrophic failure of connected smartphones or laptops during short-circuit recovery. |
Use Scenario: DC power feed protection in PoE-powered remote radio units (RRUs) and fiber access nodes subjected to induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary surge suppressor on -48 V return path, coordinated with upstream MOVs to handle multi-kW transients without thermal runaway. Use Value: Delivers 1500 W pulse handling with <15 °C/W junction-to-lead thermal resistance - sustains repeated surges without degradation in outdoor telecom 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 |
|---|---|---|---|
| SMAJ15A-E3/57T | Same VWM (12.8 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients (IEC 61000-4-2 contact discharge only); unsuitable for load dump or lightning-level threats. | Select when board space is constrained and surge threat level is Class 2 or lower; verify thermal margin at 100% duty cycle. |
| 1.5KE15A | Through-hole TO-204AA (DO-41), identical electrical specs but larger size and manual assembly requirement | Used where automated SMT is unavailable or legacy through-hole design must be maintained without layout change. | Choose for prototyping, repair, or low-volume industrial controls where reflow compatibility is not required. |
Compared with SMAJ15A-E3/57T and 1.5KE15A, the 1.5SMC15AHE3_A/H delivers 3.75× higher pulse power in an SMT package with AEC-Q101 qualification - making it the preferred choice for production automotive and high-reliability industrial designs requiring validated surge immunity and automated manufacturability.
Availability
1.5SMC15AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer power adapters, and telecom DC feeder systems requiring stable component supply, AEC-Q101 compliance, and repeatable surge performance.
Supply support for 1.5SMC15AHE3_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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade validation.
The 1.5SMC Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against lightning, ESD, and load dump events is mandatory.
FAQ
What is the breakdown voltage range for 1.5SMC15AHE3_A/H?
The 1.5SMC15AHE3_A/H has a guaranteed breakdown voltage (VBR) range of 14.3 V to 15.8 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable coordination with downstream overvoltage protection circuits.
Is 1.5SMC15AHE3_A/H qualified for automotive use?
Yes, the 1.5SMC15AHE3_A/H carries AEC-Q101 qualification, confirmed by Vishay's documentation and ordering code suffix "HE3". It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and surge endurance - meeting requirements for engine control, body electronics, and ADAS subsystems.
What is the maximum clamping voltage of 1.5SMC15AHE3_A/H at rated peak pulse current?
The 1.5SMC15AHE3_A/H clamps to a maximum of 21.2 V at its rated peak pulse current of 70.8 A (10/1000 μs waveform). This value is measured under standardized conditions with 8.0 mm × 8.0 mm copper pads per terminal, and defines the upper voltage limit imposed on protected circuits during worst-case transients.
Does 1.5SMC15AHE3_A/H have polarity marking, and how is it identified?
Yes, the 1.5SMC15AHE3_A/H is unidirectional and features a visible cathode band on the SMC (DO-214AB) package body. The banded end is the cathode and must be connected to the line being protected (e.g., 12 V rail), while the unbanded end connects to ground - incorrect orientation renders the device non-functional for reverse transients.
What is the thermal resistance specification for 1.5SMC15AHE3_A/H?
The 1.5SMC15AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads resistance (RθJL) of 15 °C/W, measured under standard JEDEC conditions. These values enable accurate thermal modeling for PCB layout - especially critical when operating near 6.5 W steady-state dissipation or during repetitive surge events.
1.5SMC15AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- 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 (SMCJ)
1.5SMC15AHE3_A/H FAQ
1.How can I place an order for 1.5SMC15AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC15AHE3_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 1.5SMC15AHE3_A/H reliable?
The price and inventory of 1.5SMC15AHE3_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 1.5SMC15AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC15AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC15AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC15AHE3_A/H?
1.5SMC15AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC15AHE3_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 1.5SMC15AHE3_A/H?
For technical support, including 1.5SMC15AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC15AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC15AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC15AHE3_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 1.5SMC15AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC15AHE3_A/H?
All 1.5SMC15AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC15AHE3_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 1.5SMC15AHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC15AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC15AHE3_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 …
