My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ7.0AHM3_A/H
- Part No.:
- SMCJ7.0AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7.0AHM3_A/H.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,759
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ7.0AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 12.0 V maximum clamping voltage at 125 A peak pulse current, 7.0 V stand-off voltage, and 7.78–8.60 V breakdown voltage range at 10 mA test current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ7.0AHM3_A/H datasheet, SMCJ7.0AHM3_A/H pinout, SMCJ7.0AHM3_A/H application, or SMCJ7.0AHM3_A/H equivalent, key selection criteria include unidirectional polarity, 1500 W PPPM rating, 12.0 V VC at IPPM, AEC-Q101 qualification status, and halogen-free RoHS-compliant HM3 suffix packaging.
Technical Context
This TVS diode operates as a clamping device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold (7.78–8.60 V), limiting transient energy by diverting surge current away from protected circuitry. Its low incremental surge resistance and fast response time ensure effective suppression of 10/1000 μs waveform surges.
Designed for surface-mount assembly on PCBs with 8.0 mm × 8.0 mm copper pads per terminal, it features glass-passivated junction, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL level 1 per J-STD-020 with 260 °C reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 7.0 V - Maximum continuous reverse operating voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 7.78–8.60 V at 10 mA - Confirmed avalanche initiation range under standardized DC test conditions |
| Clamping Voltage (VC) | 12.0 V at 125 A IPPM - Peak voltage seen across device during 10/1000 μs surge, defining protection ceiling |
| Peak Pulse Power (PPPM) | 1500 W - Maximum transient energy absorption capability under standard 10/1000 μs waveform |
| Operating Temperature | -55 °C to +150 °C - Validated junction temperature range for reliable operation in harsh environments |
| Leakage Current (ID) | 200 μA max at VWM - Low reverse leakage ensures minimal standby power loss and signal integrity |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with cathode band marking and 7.75 mm × 8.13 mm footprint |
Pinout & Package
SMCJ7.0AHM3_A/H uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two terminals, 7.75 mm × 8.13 mm body dimensions, and cathode band marking on the unidirectional variant. The device is polarized; the banded end is the cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased anode connection point | Connected to protected line; conducts avalanche current when transient exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements without compromising thermal or electrical performance |
| Low incremental surge resistance | Enables tighter clamping and lower VC under high-current transients compared to higher-Rsurge TVS devices |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow |
| Glass passivated junction | Provides stable, repeatable breakdown characteristics and long-term reliability under repeated surge stress |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp positive-going surges above 7.0 V. Use Value: Limits voltage to ≤12.0 V during 125 A transients, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted directly at connector interface to absorb ESD and inductive kickback before reaching signal conditioning circuitry. Use Value: With 200 μA max leakage at 7.0 V, preserves signal accuracy while suppressing ±15 kV contact ESD per IEC 61000-4-2. |
| DC Motor Drive Gate Protection | Telecom Power Input Stage |
Use Scenario: Shielding high-side N-channel MOSFET gates from voltage spikes generated during motor commutation. IC Role / Device Role / Timing Role: Placed between gate and source to clamp negative transients induced by parasitic inductance in gate drive loop. Use Value: Fast 10/1000 μs response and 12.0 V clamping prevent gate oxide rupture while maintaining drive timing integrity. | Use Scenario: Front-end protection for 48 V telecom rectifier inputs exposed to lightning-induced surges on outdoor lines. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor on primary DC input before bulk capacitance and DC/DC converter. Use Value: 1500 W PPPM rating handles multi-kA surge events; SMC package supports automated placement in high-volume telecom power systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0AHE3/A | Lower PPPM (400 W), SMA package (smaller footprint, lower thermal mass), same VWM/VBR/VC specs | Better suited for space-constrained consumer electronics; insufficient for 1500 W automotive load dump | Select when board area is critical and surge energy is ≤400 W |
| SMCJ7.0AHE3_A/H | Same electrical specs and SMC package, but E3 suffix indicates standard RoHS (non-halogen-free) construction | Acceptable where halogen-free requirement is not mandated; identical AEC-Q101 qualification | Choose for cost-sensitive industrial designs without halogen-free mandate |
Compared with SMCJ7.0AHM3_A/H, SMAJ7.0AHE3/A offers reduced surge handling in a smaller package, while SMCJ7.0AHE3_A/H provides identical protection performance without halogen-free compliance-enabling trade-offs between environmental compliance, thermal robustness, and PCB real estate.
Availability
SMCJ7.0AHM3_A/H is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface design, and DC motor gate drive circuits requiring stable component supply with AEC-Q101 validation and halogen-free compliance.
Supply support for SMCJ7.0AHM3_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, efficiency, and application-specific optimization.
The SMCJ series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the maximum clamping voltage of SMCJ7.0AHM3_A/H at its rated peak pulse current?
The SMCJ7.0AHM3_A/H has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current (IPPM) of 125 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ7.0AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is SMCJ7.0AHM3_A/H qualified for automotive applications?
Yes, SMCJ7.0AHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure (HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified variants). This qualification covers stress tests including temperature cycling, high-temperature operating life, and ESD, making the SMCJ7.0AHM3_A/H suitable for under-hood and chassis-mounted automotive electronics.
What does the "HM3" suffix indicate in SMCJ7.0AHM3_A/H?
The "HM3" suffix in SMCJ7.0AHM3_A/H identifies it as halogen-free, RoHS-compliant, and AEC-Q101 qualified-distinguishing it from E3 (RoHS only) and HE3 (RoHS + AEC-Q101) variants. This designation ensures compliance with automotive environmental standards and enables use in safety-critical systems where halogen content restrictions apply. The SMCJ7.0AHM3_A/H retains identical electrical specifications to non-HM3 versions.
Can SMCJ7.0AHM3_A/H be used in bidirectional configurations?
No, SMCJ7.0AHM3_A/H is a unidirectional TVS diode, indicated by the absence of "CA" in its part number. Bidirectional variants (e.g., SMCJ7.0CA) are explicitly designated and exhibit symmetrical clamping in both polarities. Using SMCJ7.0AHM3_A/H for bidirectional protection would leave the forward-biased direction unprotected; always select CA-suffixed parts for AC or dual-polarity signal lines.
What is the thermal resistance from junction to ambient for SMCJ7.0AHM3_A/H?
The typical junction-to-ambient thermal resistance (RθJA) of SMCJ7.0AHM3_A/H is 75 °C/W when mounted on the minimum recommended pad layout (0.31" × 0.31" copper pads). This value assumes no additional heatsinking and defines the temperature rise per watt of steady-state power dissipation. For pulsed operation, transient thermal impedance curves (Fig. 5 in the datasheet) govern short-duration heating behavior of the SMCJ7.0AHM3_A/H.
SMCJ7.0AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ7.0AHM3_A/H FAQ
1.How can I place an order for SMCJ7.0AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7.0AHM3_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 SMCJ7.0AHM3_A/H reliable?
The price and inventory of SMCJ7.0AHM3_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 SMCJ7.0AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ7.0AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7.0AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7.0AHM3_A/H?
SMCJ7.0AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7.0AHM3_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 SMCJ7.0AHM3_A/H?
For technical support, including SMCJ7.0AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7.0AHM3_A/H requirements.
6.How does Aetrix verify that SMCJ7.0AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ7.0AHM3_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 SMCJ7.0AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ7.0AHM3_A/H?
All SMCJ7.0AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7.0AHM3_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 SMCJ7.0AHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ7.0AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7.0AHM3_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 …
