My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC540AHE3_A/H
- Part No.:
- 1.5SMC540AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC540AHE3_A/H.pdf
- Description:
- TVS DIODE 459VWM 740VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,568
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC540AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 540 V breakdown voltage (VBR = 513–567 V at IT = 1.0 mA), 740 V maximum clamping voltage (VC) at 2.03 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs). It protects high-voltage DC rails in industrial motor drives and telecom power supplies against lightning-induced surges.
For engineers reviewing the 1.5SMC540AHE3_A/H datasheet, 1.5SMC540AHE3_A/H pinout, 1.5SMC540AHE3_A/H application, or 1.5SMC540AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a unidirectional clamping TVS diode, leveraging a glass-passivated silicon junction to achieve fast response time (<1 ns) and stable breakdown characteristics across -65 °C to +150 °C. Its 1500 W peak pulse rating is defined under standardized 10/1000 µs waveform conditions with 0.01% duty cycle.
The 1.5SMC540AHE3_A/H features a cathode-band polarity marking, meets MSL Level 1 per J-STD-020, and is qualified to AEC-Q101 for automotive-grade reliability. Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads), enabling robust surge handling when mounted on recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 513 V / 567 V at 1.0 mA test current - defines precise voltage threshold where clamping begins under transient stress |
| VC @ IPPM | 740 V at 2.03 A - maximum voltage seen by protected circuit during full-rated 1500 W surge event |
| PPPM | 1500 W (10/1000 µs waveform) - peak transient energy absorption capability without failure |
| VWM | 459 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| IFSM | 200 A (8.3 ms half-sine) - surge current tolerance for unidirectional forward conduction events |
| TJ max | +150 °C - enables operation in high-temperature environments such as engine control units or power converters |
| RθJA | 75 °C/W - thermal resistance indicating required PCB copper area and airflow for sustained power dissipation |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); cathode band denotes polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected line's lower-potential side | Provides low-impedance path to ground during overvoltage events when cathode is held at higher potential |
| Cathode | Current exit terminal in forward bias; marked with band; connected to system ground or reference rail | Defines unidirectional clamping direction - suppresses positive transients only relative to cathode reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power rails |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage under thermal cycling and humidity stress |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) surge immunity compliance |
| MSL Level 1 rating | Enables direct placement without baking; compatible with standard reflow profiles up to 260 °C peak |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for downstream ICs |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 400–600 V DC bus against switching transients from IGBT gate drive noise and load dump. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across bulk capacitor terminals to limit voltage spikes to <740 V. Use Value: Prevents overvoltage failure of electrolytic capacitors and gate drivers during rapid deceleration or fault shutdown. |
Use Scenario: Input-stage surge suppression for AC/DC rectifiers feeding 48 V or 54 V telecom systems. IC Role / Device Role / Timing Role: Primary-level transient shunt on rectified high-voltage input rail before PFC stage. Use Value: Absorbs 1500 W lightning-induced surges per IEC 61000-4-5 while maintaining <459 V steady-state hold-off. |
| Automotive Battery Management | Renewable Energy Inverters |
Use Scenario: Overvoltage protection on 400–800 V battery pack monitoring circuits exposed to load-dump transients. IC Role / Device Role / Timing Role: Clamp diode between HV bus and isolated signal conditioning front-end. Use Value: AEC-Q101 qualification ensures reliability in harsh automotive environments; 150 °C rating supports under-hood mounting. |
Use Scenario: DC-link protection in solar string inverters subjected to grid-switching transients and nearby lightning strikes. IC Role / Device Role / Timing Role: Parallel-mounted TVS across DC-link capacitors to clamp voltage excursions above 540 V. Use Value: 740 V clamping voltage provides safe margin below typical 800 V IGBT blocking rating, preventing destructive avalanche. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ540AHE3_A/H | Same VBR range (513–567 V) but SMB package (lower 600 W PPPM, smaller 4.6 mm × 3.9 mm footprint) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 compliance | Select when board space is constrained and surge energy does not exceed 600 W |
| 1.5KE540A | Through-hole DO-201 package; identical electrical specs but no AEC-Q101 qualification or MSL Level 1 rating | Not suitable for automated SMT production or automotive under-hood use due to leaded construction and thermal limitations | Choose for prototyping or legacy through-hole designs where reflow compatibility is not required |
Compared with SMBJ540AHE3_A/H and 1.5KE540A, the 1.5SMC540AHE3_A/H uniquely delivers 1500 W surge capability in an AEC-Q101-qualified SMT package, enabling high-reliability, high-energy protection in space-constrained automotive and industrial power systems without compromising manufacturability.
Availability
1.5SMC540AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive battery management systems, and renewable energy inverters requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for 1.5SMC540AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific performance.
The 1.5SMC Series is designed for high-power transient suppression in demanding environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 qualification, and 1500 W surge handling are critical.
FAQ
What is the clamping voltage of the 1.5SMC540AHE3_A/H under full-rated surge conditions?
The 1.5SMC540AHE3_A/H has a maximum clamping voltage (VC) of 740 V at its rated peak pulse current of 2.03 A (10/1000 µs waveform). This value is measured per standard test conditions and defines the upper voltage limit imposed on the protected circuit during a 1500 W transient event. Designers must ensure downstream components tolerate this clamping level.
Is the 1.5SMC540AHE3_A/H suitable for automotive applications?
Yes, the 1.5SMC540AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix and "_A/H" ordering code. It meets stringent requirements for temperature cycling, humidity resistance, and surge robustness, making it appropriate for engine control units, battery monitoring systems, and ADAS power rails.
What is the standoff voltage (VWM) of the 1.5SMC540AHE3_A/H, and why does it matter?
The 1.5SMC540AHE3_A/H has a maximum reverse standoff voltage (VWM) of 459 V - the highest continuous DC voltage it can block without exceeding 1 µA leakage. This parameter ensures reliable operation on 400 V nominal DC buses, providing sufficient margin above normal operating voltage while avoiding false triggering during ripple or transients below the clamping threshold.
How does the SMC (DO-214AB) package of the 1.5SMC540AHE3_A/H compare to SMB or SOD packages in surge handling?
The SMC package of the 1.5SMC540AHE3_A/H offers significantly higher thermal mass and power dissipation capability than SMB or SOD packages, enabling its 1500 W peak pulse rating. Its 7.75 mm × 6.22 mm footprint and 75 °C/W RθJA support sustained energy absorption that smaller packages cannot match - critical for protecting high-voltage industrial and automotive systems.
Does the 1.5SMC540AHE3_A/H have polarity markings, and how is it oriented in-circuit?
Yes, the 1.5SMC540AHE3_A/H features a visible cathode band on one end of the SMC package. In-circuit, the banded end connects to the reference or ground node, while the unmarked (anode) end connects to the line being protected. This orientation ensures unidirectional clamping of positive transients relative to the cathode reference point.
1.5SMC540AHE3_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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 459V
- Voltage - Breakdown (Min):
- 513V
- Voltage - Clamping (Max) @ Ipp:
- 740V
- Current - Peak Pulse (10/1000µs):
- 2.03A
- 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)
1.5SMC540AHE3_A/H FAQ
1.How can I place an order for 1.5SMC540AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC540AHE3_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 1.5SMC540AHE3_A/H reliable?
The price and inventory of 1.5SMC540AHE3_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 1.5SMC540AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC540AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC540AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC540AHE3_A/H?
1.5SMC540AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC540AHE3_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 1.5SMC540AHE3_A/H?
For technical support, including 1.5SMC540AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC540AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC540AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC540AHE3_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 1.5SMC540AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC540AHE3_A/H?
All 1.5SMC540AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC540AHE3_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 1.5SMC540AHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC540AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC540AHE3_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 …
