My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC7.5CAHM3/H
- Part No.:
- 1.5SMC7.5CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC7.5CAHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,206
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC7.5CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on signal and power lines. It features 7.5 V standoff voltage (VWM), 1500 W peak pulse power (10/1000 μs), clamping voltage of 12.0 V at 100 A, and operates across -65 °C to +150 °C junction temperature - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC7.5CAHM3/H datasheet, 1.5SMC7.5CAHM3/H pinout, 1.5SMC7.5CAHM3/H application, or 1.5SMC7.5CAHM3/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (VC/VWM = 1.6), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device implements a silicon avalanche diode structure with glass-passivated junction, enabling sub-nanosecond response to transients and stable breakdown under repetitive 10/1000 μs surges at 0.01% duty cycle. Its bidirectional symmetry ensures identical clamping in both polarities without polarity marking.
Thermal design relies on RθJA = 75 °C/W (on 8.0 mm × 8.0 mm copper pads) and RθJL = 15 °C/W, supporting sustained 6.5 W power dissipation at 50 °C ambient. The 1.5SMC7.5CAHM3/H meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 7.13–7.88 V at 10 mA - Measured breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 12.0 V at 100 A - Peak voltage seen by protected circuit during 1500 W transient; determines downstream component stress. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; supports lightning and ESD immunity per IEC 61000-4-5. |
| ID (Leakage) | <500 μA at 7.5 V - Low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with IPC-7351B. |
Pinout & Package
Package: SMC (DO-214AB), bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve as interchangeable surge current entry/exit points; no cathode band or polarity identification required. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JEDEC standards. |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for Tier-1 automotive supply chains and EU industrial equipment. |
| 1500 W peak pulse rating | Withstands 10/1000 μs surges up to 100 A - sufficient for Level 4 IEC 61000-4-5 (4 kV line-to-ground) testing. |
| Low clamping ratio (VC/VWM = 1.6) | Minimizes voltage overshoot during clamping, reducing risk of damage to downstream 5 V or 3.3 V logic components. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 5 V rail-sensitive transceivers while maintaining signal fidelity due to low capacitance (<100 pF). |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Ensures uninterrupted operation during 1 kV/500 A surge events per IEC 61000-4-4, preserving measurement accuracy and system uptime. |
| Telecom Line Card Protection | Consumer USB Port ESD |
Use Scenario: Front-end surge suppression on Ethernet PHY interfaces and DSL line drivers exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: First-stage protector on RJ-45 magnetics secondary side, upstream of integrated ESD diodes in PHY ICs. Use Value: Absorbs >95% of 1500 W surge energy before secondary protection activates, extending overall system MTBF. |
Use Scenario: Board-level ESD protection for USB 2.0 data lines (D+/D−) and VBUS in portable audio devices and smart home hubs. IC Role / Device Role / Timing Role: Standalone bidirectional clamp bridging differential pairs or VBUS-to-GND, rated for ±15 kV contact discharge (IEC 61000-4-2). Use Value: Maintains <0.5 pF inter-electrode capacitance per line - critical for preserving USB 2.0 signal integrity up to 480 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Same VWM (7.5 V) and bidirectional function, but lower PPPM (600 W) and SMB package (smaller thermal mass). | Suitable for lower-energy threats (e.g., IEC 61000-4-2 ESD only); not recommended for IEC 61000-4-5 lightning surges. | Select when board space is constrained and surge threat level is limited to human-body-model ESD. |
| 1.5KE7.5CA | Same electrical specs but axial-leaded DO-15 package; higher RθJA (~100 °C/W), no SMT compatibility. | Requires through-hole assembly and manual rework; unsuitable for automated production or high-density layouts. | Choose only for legacy repair, prototyping, or non-SMT environments where leaded components are mandated. |
Compared with SMBJ7.5CA and 1.5KE7.5CA, the 1.5SMC7.5CAHM3/H delivers superior surge robustness in an SMT-optimized, automotive-qualified package - making it the preferred choice for volume-manufactured automotive and industrial electronics requiring AEC-Q101 compliance and 1500 W immunity.
Availability
1.5SMC7.5CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interface units, and consumer USB host ports requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC7.5CAHM3/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 and application-specific performance.
The 1.5SMC Series targets high-power transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where AEC-Q101 qualification, 1500 W surge capability, and halogen-free compliance are mandatory.
FAQ
What does the "HM3" suffix mean in 1.5SMC7.5CAHM3/H?
The "HM3" suffix in 1.5SMC7.5CAHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It denotes Vishay's commercial-grade automotive variant, distinct from E3 (RoHS-only) and HE3 (AEC-Q101, non-halogen-free) versions. This suffix ensures compliance with automotive supply chain requirements and environmental regulations without compromising surge performance.
Is 1.5SMC7.5CAHM3/H unidirectional or bidirectional?
The 1.5SMC7.5CAHM3/H is a bidirectional TVS diode, confirmed by the "CA" suffix per Vishay documentation. It provides symmetrical clamping in both polarities with identical VWM (7.5 V), VBR (7.13–7.88 V), and VC (12.0 V) characteristics - eliminating need for polarity orientation during placement and enabling protection of AC-coupled or floating signal paths.
What is the maximum clamping voltage of 1.5SMC7.5CAHM3/H at rated surge current?
The maximum clamping voltage (VC) of 1.5SMC7.5CAHM3/H is 12.0 V at 100 A peak pulse current (IPPM), measured under standardized 10/1000 μs waveform conditions. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Does 1.5SMC7.5CAHM3/H meet automotive qualification standards?
Yes, 1.5SMC7.5CAHM3/H is AEC-Q101 qualified, as indicated by the "HM3" suffix and confirmed in Vishay's 1.5SMC Series datasheet (Document Number 88303). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making it suitable for under-hood and chassis-mounted automotive applications.
What is the thermal resistance of 1.5SMC7.5CAHM3/H, and how does it affect layout?
The 1.5SMC7.5CAHM3/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. To maintain reliability at full 6.5 W power dissipation, PCB layout must provide minimum recommended pad area and avoid thermal isolation - insufficient copper will cause premature thermal shutdown or parametric drift.
1.5SMC7.5CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC7.5CAHM3/H FAQ
1.How can I place an order for 1.5SMC7.5CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC7.5CAHM3/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 1.5SMC7.5CAHM3/H reliable?
The price and inventory of 1.5SMC7.5CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC7.5CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC7.5CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC7.5CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC7.5CAHM3/H?
1.5SMC7.5CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC7.5CAHM3/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 1.5SMC7.5CAHM3/H?
For technical support, including 1.5SMC7.5CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC7.5CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC7.5CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC7.5CAHM3/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 1.5SMC7.5CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC7.5CAHM3/H?
All 1.5SMC7.5CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC7.5CAHM3/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 1.5SMC7.5CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC7.5CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC7.5CAHM3/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 …
