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Vishay General Semiconductor - Diodes Division 1.5SMC7.5AHE3_A/H
- Part No.:
- 1.5SMC7.5AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5AHE3_A/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,905
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Product details
Overview
1.5SMC7.5AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V maximum stand-off voltage (VWM), 11.3 V clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC7.5AHE3_A/H datasheet, 1.5SMC7.5AHE3_A/H pinout, 1.5SMC7.5AHE3_A/H application, or 1.5SMC7.5AHE3_A/H equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly and high-reliability environments.
Technical Context
This unidirectional TVS operates by avalanche breakdown to clamp transient overvoltages above its VWM threshold while maintaining low leakage (<500 μA at 6.40 V). Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and fast response time (<1.0 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device is rated for 150 °C maximum junction temperature and exhibits a positive temperature coefficient of VBR (+0.061 %/°C), supporting predictable derating across automotive and industrial thermal profiles. Mounting on 8.0 mm × 8.0 mm copper pads achieves specified 1500 W pulse capability per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.40 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 5 V systems. |
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - Ensures reliable turn-on within tight tolerance for consistent clamping onset across production lots. |
| VC @ IPPM | 11.3 V at 133 A - Clamped voltage during 1500 W transient; limits downstream IC stress to safe levels in 5 V logic interfaces. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 surge immunity compliance. |
| IPPM | 133 A - Peak pulse current capacity; enables protection against high-energy transients without device failure. |
| TJ max | +150 °C - Junction temperature limit; allows operation in under-hood automotive and high-ambient industrial environments. |
| Package | SMC (DO-214AB) - Surface-mount outline with 0.320" x 0.246" footprint; compatible with standard SMT reflow and automated placement. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential node in unidirectional configuration; carries forward surge current during clamping. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 5 V rail); avalanche breakdown initiates here when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV/2 Ω without degradation, eliminating need for external series impedance in many designs. |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes voltage overshoot during transients - critical for protecting 5 V tolerant microcontrollers and CAN transceivers. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns; no baking required prior to assembly. |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift over 15-year service life in harsh thermal/humidity environments. |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and chassis ground to shunt transients before reaching ADC input or signal conditioner. Use Value: Clamps 12 V system transients to ≤11.3 V, preserving signal integrity and preventing latch-up in 5 V rail-connected front-end circuitry. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point to absorb energy from inductive load switching before reaching optocoupler or Schmitt trigger input stage. Use Value: Limits transient voltage to 11.3 V at 133 A, enabling use of cost-effective 16 V-rated input protection components downstream. |
| Consumer Power Adapter Output | Telecom Ethernet Port Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V USB-C PD adapter outputs exposed to hot-plug and cable ESD events. IC Role / Device Role / Timing Role: Fast-response TVS connected between VBUS and GND to clamp ESD (IEC 61000-4-2 ±15 kV) and output capacitor discharge spikes. Use Value: Sub-1 ns response ensures clamping occurs before 5 V LDO or USB controller sustains damage, meeting UL 62368-1 surge requirements. |
Use Scenario: Primary-level protection for PoE-powered Ethernet PHYs against lightning-induced common-mode surges on RJ45 lines. IC Role / Device Role / Timing Role: Unidirectional TVS applied per pair (e.g., TX+/TX− to ground) to suppress differential-mode transients while preserving signal rise/fall times. Use Value: 11.3 V clamping maintains Ethernet signal eye diagram integrity and prevents PHY receiver saturation during 10/1000 μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Lower PPPM (600 W), smaller SMB package (DO-214AA), VC = 11.2 V at 53.3 A | Targeted at space-constrained consumer electronics; insufficient for 1500 W IEC 61000-4-5 Level 4 compliance. | Select 1.5SMC7.5AHE3_A/H when full automotive surge immunity or higher single-pulse energy handling is required. |
| 1.5KE7.5A | Through-hole TO-204AE (DO-41) package, same VBR/VC, but slower thermal response and no AEC-Q101 qualification | Used in legacy industrial power supplies where manual assembly and lower reliability tiers are acceptable. | Choose 1.5SMC7.5AHE3_A/H for SMT automation, AEC-Q101 compliance, and superior surge repetition capability. |
Compared with SMBJ7.0A and 1.5KE7.5A, the 1.5SMC7.5AHE3_A/H delivers 2.5× higher pulse power in an AEC-Q101 qualified SMT package - enabling single-device compliance with stringent automotive surge standards without layout redesign or secondary protection stages.
Availability
1.5SMC7.5AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, consumer power adapters, and telecom Ethernet ports requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC7.5AHE3_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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in high-energy environments - balancing clamping precision, surge endurance, and AEC-Q101 reliability for next-generation vehicle electronics and ruggedized industrial controls.
FAQ
What is the clamping voltage of the 1.5SMC7.5AHE3_A/H under maximum rated surge conditions?
The 1.5SMC7.5AHE3_A/H has a maximum clamping voltage (VC) of 11.3 V at 133 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per JEDEC test conditions on specified copper pad layouts and defines the upper voltage limit imposed on protected circuits during worst-case transients. The 1.5SMC7.5AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC7.5AHE3_A/H qualified for automotive applications?
Yes, the 1.5SMC7.5AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision notes. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D. This qualification makes the 1.5SMC7.5AHE3_A/H suitable for under-hood and cabin electronics where reliability under thermal and electrical stress is mandatory.
What is the standoff voltage rating of the 1.5SMC7.5AHE3_A/H, and how does it relate to 5 V system design?
The 1.5SMC7.5AHE3_A/H has a maximum reverse stand-off voltage (VWM) of 6.40 V, allowing safe operation on nominal 5 V DC rails with sufficient margin to avoid leakage or premature conduction. This VWM ensures compatibility with standard 5 V logic families and power regulators while still enabling rapid avalanche response when transients exceed 7.13 V (VBR min). The 1.5SMC7.5AHE3_A/H thus provides precise overvoltage guardbanding without false triggering.
Does the 1.5SMC7.5AHE3_A/H have a defined polarity marking, and how is it identified?
Yes, the 1.5SMC7.5AHE3_A/H is unidirectional and features a visible cathode band on the SMC (DO-214AB) package body. Per Vishay mechanical drawings and datasheet notes, the banded end corresponds to the cathode terminal, which must be connected to the line being protected (e.g., 5 V rail), while the anode connects to ground. This polarity is critical for correct clamping behavior and must be observed during PCB layout and assembly of the 1.5SMC7.5AHE3_A/H.
What is the thermal resistance profile of the 1.5SMC7.5AHE3_A/H, and how does it affect power dissipation?
The 1.5SMC7.5AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads (RθJL) of 15 °C/W when mounted per recommended pad layout. These values enable 6.5 W steady-state power dissipation at 50 °C ambient, but the device is primarily rated for short-duration pulse handling (1500 W). For repeated surge events, thermal mass and PCB copper area directly impact safe duty cycle - the 1.5SMC7.5AHE3_A/H requires 8.0 mm × 8.0 mm copper pads per terminal to achieve full rated PPPM.
1.5SMC7.5AHE3_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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 133A
- 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)
1.5SMC7.5AHE3_A/H FAQ
1.How can I place an order for 1.5SMC7.5AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/H reliable?
The price and inventory of 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5AHE3_A/H?
1.5SMC7.5AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/H?
For technical support, including 1.5SMC7.5AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5AHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC7.5AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5AHE3_A/H?
All 1.5SMC7.5AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5AHE3_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 1.5SMC7.5AHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC7.5AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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