My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC30AHE3_A/I
- Part No.:
- 1.5SMC30AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC30AHE3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,019
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC30AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. It features a 30 V standoff voltage (VWM), 34.2 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage (VC) at 36.2 A peak pulse current (IPPM), and 1500 W peak pulse power capability with a 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor signal lines against lightning-induced transients and inductive switching spikes in automotive and industrial systems.
For engineers reviewing the 1.5SMC30AHE3_A/I datasheet, 1.5SMC30AHE3_A/I pinout, 1.5SMC30AHE3_A/I application, or 1.5SMC30AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, low incremental surge resistance, fast response time, MSL Level 1 rating, and compatibility with automated SMT placement on PCBs requiring robust overvoltage immunity up to 150 °C junction temperature.
Technical Context
This TVS diode operates as a unidirectional clamping device, conducting only when reverse voltage exceeds its breakdown threshold (VBR = 34.2–37.8 V), thereby diverting transient energy to ground while limiting downstream voltage to ≤41.4 V. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at 25.6 V) and long-term reliability under repetitive surge stress.
The 1.5SMC30AHE3_A/I is thermally optimized for surface-mount use with RθJA = 75 °C/W and RθJL = 15 °C/W, enabling effective heat dissipation when mounted on 8.0 mm × 8.0 mm copper pads per terminal. Its 10/1000 μs waveform rating reflects standardized IEC 61000-4-5 surge immunity testing conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 25.6 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR (Breakdown) | 34.2–37.8 V at 1.0 mA - Voltage at which device enters avalanche conduction; ensures precise overvoltage triggering. |
| VC (Clamping) | 41.4 V at 36.2 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; critical for IC-level survivability. |
| PPPM | 1500 W - Peak transient power handling capacity; supports high-energy surges common in automotive load-dump events. |
| IFSM | 200 A - Single half-sine surge current rating (8.3 ms); validates robustness against short-duration inrush or fault currents. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 0.320" x 0.246" footprint; compatible with JEDEC MS-013AC and automated pick-and-place. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected line (e.g., signal or power rail); conducts during forward bias or reverse avalanche. |
| Cathode | Reference node / Ground reference for clamping | Connected to system ground or low-impedance return path; establishes clamping reference and defines unidirectional polarity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS, and body electronics. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without degradation when properly mounted on recommended copper pads. |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and consistent VBR over lifetime, critical for low-power sensor interfaces. |
| Low profile SMC package | 0.126" height enables compact layout in space-constrained modules such as ECU PCBs and motor drivers. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak - simplifies manufacturing and eliminates bake requirements. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (up to 120 V, 400 ms) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges before they reach LDOs and microcontrollers. Use Value: Limits voltage to ≤41.4 V during 36.2 A transients, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop or 0–5 V sensor outputs) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS installed at connector interface to shunt fast transients (<1 ns rise time) before entering op-amp input stages. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within nanoseconds while adding <0.5 pF parasitic capacitance - preserving signal integrity. |
| Telecom Interface Protection | Consumer Power Adapter Input Stage |
Use Scenario: Safeguarding Ethernet PHY or RS-485 transceivers connected to outside plant wiring exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of GDT or polymer PTC, absorbing bulk energy before secondary protection triggers. Use Value: Handles 1500 W peak pulse (10/1000 μs) without thermal runaway, enabling compliance with ITU-T K.20/K.21 telecom surge standards. |
Use Scenario: Input-stage overvoltage protection in AC-DC adapters subjected to mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Parallel-connected TVS across bridge rectifier output to clamp rectified surges before bulk capacitor and PWM controller. Use Value: Withstands 200 A non-repetitive forward surge (8.3 ms), ensuring survival during brownout recovery and hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 90 °C/W), same VWM/VBR/VC ratings. | Limited to lower-energy surges; suitable for consumer-grade USB or display interfaces but not automotive load-dump. | Select when board space is constrained and surge threat level is ≤1 kV (IEC 61000-4-5 Level 2). |
| 1.5KE30A | Through-hole DO-201 package, identical electrical specs, no AEC-Q101 qualification, higher mounting thermal resistance. | Not suitable for automated SMT production or high-vibration automotive environments; requires wave soldering. | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency. |
Compared with SMBJ30A-E3/52 and 1.5KE30A, the 1.5SMC30AHE3_A/I uniquely combines AEC-Q101 qualification, 1500 W surge rating, and SMC package manufacturability - making it the preferred choice for volume automotive and industrial SMT applications demanding validated reliability and high-energy clamping.
Availability
1.5SMC30AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, telecom interface circuits, and consumer power adapter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC30AHE3_A/I 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The 1.5SMC Series was engineered specifically for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, low clamping voltage, and repeatable surge endurance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC30AHE3_A/I under standard test conditions?
The 1.5SMC30AHE3_A/I has a maximum clamping voltage (VC) of 41.4 V when subjected to a 10/1000 μs waveform at 36.2 A peak pulse current (IPPM). This value is measured per JEDEC standards and represents the upper limit of voltage imposed on the protected circuit during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings. The 1.5SMC30AHE3_A/I maintains this clamping performance across its full operating temperature range (−65 °C to +150 °C).
Is the 1.5SMC30AHE3_A/I qualified for automotive applications?
Yes, the 1.5SMC30AHE3_A/I carries AEC-Q101 qualification, confirmed by Vishay's documentation and ordering code suffix "HE3", indicating RoHS-compliant and automotive-grade reliability. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and surge endurance validation - making the 1.5SMC30AHE3_A/I suitable for engine control units, body electronics, and ADAS subsystems where failure is not acceptable.
What is the meaning of the "_A/I" suffix in 1.5SMC30AHE3_A/I?
The "_A/I" suffix in 1.5SMC30AHE3_A/I denotes two specific attributes: "A" indicates the device belongs to the AEC-Q101 qualified variant group covering 1.5SMC6.8A to 1.5SMC220A, and "I" specifies packaging in a 13-inch diameter plastic tape and reel containing 3500 units - optimized for high-volume SMT assembly. This distinguishes the 1.5SMC30AHE3_A/I from smaller reels (e.g., "H" = 850 units) or non-automotive variants (e.g., "E3" without AEC-Q101).
How does the 1.5SMC30AHE3_A/I compare to bidirectional TVS diodes like 1.5SMC30CA?
The 1.5SMC30AHE3_A/I is unidirectional and intended for DC-biased lines where polarity is fixed (e.g., power rails), offering tighter leakage control (<1.0 μA at 25.6 V) and lower forward voltage drop. In contrast, 1.5SMC30CA is bidirectional and suited for AC or symmetrical signal lines (e.g., RS-485), but exhibits higher reverse leakage and lacks AEC-Q101 qualification in standard versions. The 1.5SMC30AHE3_A/I is not interchangeable with 1.5SMC30CA without circuit redesign due to polarity and qualification differences.
What thermal derating applies to the 1.5SMC30AHE3_A/I above 25 °C ambient?
The 1.5SMC30AHE3_A/I follows Vishay's standard derating curve: peak pulse power (PPPM) decreases linearly above TA = 25 °C, reaching ~50 % of 1500 W at TJ = 125 °C. Derating is governed by RθJA = 75 °C/W and requires adherence to the recommended 8.0 mm × 8.0 mm copper pad layout per terminal. At 85 °C ambient, the 1.5SMC30AHE3_A/I retains ≥750 W surge capability - sufficient for under-hood automotive use when board layout and airflow meet specification.
1.5SMC30AHE3_A/I 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
1.5SMC30AHE3_A/I FAQ
1.How can I place an order for 1.5SMC30AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC30AHE3_A/I 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 1.5SMC30AHE3_A/I reliable?
The price and inventory of 1.5SMC30AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC30AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC30AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC30AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC30AHE3_A/I?
1.5SMC30AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC30AHE3_A/I 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 1.5SMC30AHE3_A/I?
For technical support, including 1.5SMC30AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC30AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC30AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC30AHE3_A/I 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 1.5SMC30AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC30AHE3_A/I?
All 1.5SMC30AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC30AHE3_A/I, 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 1.5SMC30AHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC30AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC30AHE3_A/I 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 …
