My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA6J7.5AHM3/5A
- Part No.:
- SMA6J7.5AHM3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J7.5AHM3/5A.pdf
- Description:
- TVS DIODE 7.5VWM 11.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,928
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J7.5AHM3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast-rising voltage transients on power and signal lines. It features 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR at IT = 1 A), 11.8 V maximum clamping voltage at 50.8 A (10/1000 μs), and 600 W peak pulse power rating. It is used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment against inductive switching surges.
For engineers reviewing the SMA6J7.5AHM3/5A datasheet, SMA6J7.5AHM3/5A pinout, SMA6J7.5AHM3/5A application, or SMA6J7.5AHM3/5A equivalent, key selection criteria include clamping performance at 50.8 A IPP, unidirectional polarity, SMA package thermal resistance (RθJA = 120 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream components. Its dynamic resistance (RD = 0.051 Ω) ensures low clamping overshoot under 10/1000 μs transients, and its 150 °C max junction temperature supports operation in thermally constrained PCB layouts.
The device is optimized for surface-mount automation with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements. Its unidirectional polarity-indicated by a cathode band-is fixed and not configurable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse operating voltage before conduction begins; sets protection threshold for normal circuit operation. |
| VBR min/max | 8.33 V / 9.21 V at IT = 1 A - Confirmed avalanche onset range; defines minimum overvoltage required to trigger clamping. |
| VC at IPP | 11.8 V at 50.8 A (10/1000 μs) - Measured clamping voltage during standard surge; determines maximum stress imposed on protected ICs. |
| PPPM (10 × 1000 μs) | 600 W - Peak surge energy handling capability under IEC 61000-4-5 long-pulse conditions. |
| ID at VWM | 1 μA max - Reverse leakage current at rated stand-off voltage; ensures minimal standby power loss and signal integrity. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard 5 mm × 5 mm copper pads; guides heatsinking and layout design. |
| Polarity | Unidirectional - Protects against positive transients only; requires correct orientation relative to DC bias. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to lower-potential side of protected line. | Used only during forward-biased ESD events or fault conditions; not active in normal reverse-biased protection mode. |
| Cathode | Current exit point during reverse avalanche clamping; connected to higher-potential side (e.g., VCC or signal line). | Primary terminal for transient energy diversion; must be routed with low-inductance path to ground or return plane. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping voltage control | 11.8 V at 50.8 A enables reliable protection of 5 V–12 V logic and power rails without overstressing downstream silicon. |
| Low dynamic resistance | 0.051 Ω minimizes voltage overshoot during fast transients, improving margin for sensitive analog and digital interfaces. |
| MSL Level 1 rating | Compatible with standard 260 °C lead-free reflow profiles without preconditioning-reduces manufacturing complexity. |
| Halogen-free & RoHS-compliant | M3 suffix confirms halogen-free molding compound and RoHS compliance-meets environmental requirements for industrial and telecom products. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and microcontrollers from flyback voltage spikes generated by relay or solenoid coil de-energization. IC Role / Device Role / Timing Role: Shunt clamping element placed across DC bus or control line input to limit transient voltage to ≤11.8 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic ICs and MOSFET gate oxides during repetitive inductive switching. | Use Scenario: Input-stage surge suppression on +48 V telecom power distribution boards exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary front-end TVS device mounted directly at connector entry point to absorb 600 W pulses. Use Value: Maintains system uptime by preventing shutdown or reset events caused by transient-induced brownouts on PMIC inputs. |
| Automotive Body Control Modules | Consumer Sensor Interfaces |
Use Scenario: Protection of LIN bus transceivers and MCU I/O pins against load dump and ISO 7637-2 pulse 1/2a transients in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between LIN line and ground, sized for 50.8 A peak current. Use Value: Ensures communication continuity during vehicle battery disconnection/reconnection events without requiring external series impedance. | Use Scenario: ESD and surge protection for I²C/SPI lines connecting MEMS accelerometers or environmental sensors to host processors. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) shunt protector on bidirectional data lines, preserving signal rise/fall times. Use Value: Enables robust field deployment in handheld and IoT devices where human-contact ESD (±8 kV contact) is a primary failure mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J7.5A-E3/5A | Same electrical specs and SMA package; RoHS-compliant but contains brominated flame retardants (not halogen-free). | Acceptable where halogen-free requirement is not mandated (e.g., non-EU industrial controls). | Select if cost sensitivity outweighs halogen-free compliance; verify regional regulatory alignment. |
| SMCJ7.5A-M3 | Higher 1500 W PPPM (10 × 1000 μs), larger SMC (DO-214AB) package, RθJA = 35 °C/W - better thermal performance but 3× footprint area. | Suitable for high-energy surge environments (e.g., outdoor telecom cabinets) where PCB space allows larger case. | Choose when surge energy exceeds 600 W or ambient temperature exceeds 85 °C with limited copper area. |
Compared with SMA6J7.5AHM3/5A, the E3 variant trades halogen-free status for lower cost, while the SMCJ7.5A-M3 offers superior power handling at the expense of board space and thermal layout flexibility-making SMA6J7.5AHM3/5A optimal for space-constrained, mid-energy industrial and telecom designs.
Availability
SMA6J7.5AHM3/5A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply and halogen-free compliance.
Supply support for SMA6J7.5AHM3/5A 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 and application-specific optimization.
The SMA6JxxA family is engineered for surface-mount transient suppression in space-constrained, high-volume applications-balancing clamping precision, surge robustness, and automated assembly compatibility.
FAQ
What is the maximum clamping voltage of the SMA6J7.5AHM3/5A under a 10/1000 μs surge?
The SMA6J7.5AHM3/5A has a maximum clamping voltage (VC) of 11.8 V when subjected to a 10/1000 μs waveform at 50.8 A peak pulse current. This value is measured per the test conditions specified in the Vishay datasheet (Document Number: 89460), using standard PCB mounting with 5.0 mm × 5.0 mm copper pads per terminal. The clamping voltage ensures protected circuits remain within safe operating limits during common surge events.
Is the SMA6J7.5AHM3/5A suitable for bidirectional transient protection?
No, the SMA6J7.5AHM3/5A is unidirectional only, as confirmed in the Vishay datasheet's FEATURES section and ELECTRICAL CHARACTERISTICS table. It protects against positive transients on a DC-biased line and must be oriented with the cathode toward the higher-potential side. For bidirectional protection, a different device such as the SMBJ7.5CA-M3 or a paired unidirectional configuration would be required-not the SMA6J7.5AHM3/5A.
What does the "M3" suffix indicate in SMA6J7.5AHM3/5A?
Per Vishay's ordering information, the "M3" suffix in SMA6J7.5AHM3/5A denotes halogen-free, RoHS-compliant construction with industrial-grade reliability and JESD 201 class 2 whisker resistance. It distinguishes the part from the "E3" variant, which is RoHS-compliant but not halogen-free. The "5A" denotes 13-inch tape-and-reel packaging with 7500 units per reel-critical for SMT line feed consistency.
Can the SMA6J7.5AHM3/5A be used in automotive applications per AEC-Q200?
The SMA6J7.5AHM3/5A is not AEC-Q200 qualified. While it operates from −55 °C to +150 °C and is rated for industrial use, Vishay does not list this part in its AEC-Q200 stress-tested product portfolio. For automotive body electronics requiring qualification, engineers should select Vishay's AEC-Q200-certified TVS families (e.g., AEC-Q200-compliant SMAJ or SMCJ variants) instead of relying on SMA6J7.5AHM3/5A.
What is the thermal resistance and how does it affect layout for the SMA6J7.5AHM3/5A?
The SMA6J7.5AHM3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value means that under 4 W steady-state dissipation (PD at TA = 50 °C), junction temperature rises ~480 °C above ambient-so actual operation relies on short-duration surges, not continuous power. Layout must replicate the specified pad size and avoid thermal isolation to ensure rated surge performance and prevent premature thermal runaway.
SMA6J7.5AHM3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 11.8V
- Current - Peak Pulse (10/1000µs):
- 50.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J7.5AHM3/5A FAQ
1.How can I place an order for SMA6J7.5AHM3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J7.5AHM3/5A 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 SMA6J7.5AHM3/5A reliable?
The price and inventory of SMA6J7.5AHM3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J7.5AHM3/5A is usually 5 days.
3.What payment methods are accepted for SMA6J7.5AHM3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J7.5AHM3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J7.5AHM3/5A?
SMA6J7.5AHM3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J7.5AHM3/5A 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 SMA6J7.5AHM3/5A?
For technical support, including SMA6J7.5AHM3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J7.5AHM3/5A requirements.
6.How does Aetrix verify that SMA6J7.5AHM3/5A is sourced from the original manufacturer or authorized distributors?
All SMA6J7.5AHM3/5A 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 SMA6J7.5AHM3/5A meets industry standards.
7.What is the process for return or replacement of SMA6J7.5AHM3/5A?
All SMA6J7.5AHM3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J7.5AHM3/5A, 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 SMA6J7.5AHM3/5A part is unused and in its original packaging.
Return procedure for SMA6J7.5AHM3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J7.5AHM3/5A 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 …
