My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J7.5A-M3/61
- Part No.:
- SMA5J7.5A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.5A-M3/61.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,825
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J7.5A-M3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR at 1.0 mA), 12.9 V clamping voltage (VC) at 38.8 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J7.5A-M3/61 datasheet, SMA5J7.5A-M3/61 pinout, SMA5J7.5A-M3/61 application, or SMA5J7.5A-M3/61 equivalent, key selection criteria include unidirectional polarity, halogen-free RoHS compliance (M3 suffix), 150 °C max junction temperature, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 7.5 V and rapidly transitions to low-impedance conduction above its 8.33–9.21 V breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable clamping performance under repetitive transients.
Engineered for surge immunity per IEC 61000-4-5 (10/1000 μs), it delivers 38.8 A peak pulse current capability with 12.9 V clamping voltage and exhibits low incremental surge resistance - critical for protecting downstream MOSFETs and ICs from inductive switching spikes and ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 8.33 V / 9.21 V at 1.0 mA - precise breakdown threshold defining turn-on sensitivity |
| VC @ IPPM | 12.9 V at 38.8 A - clamped voltage limiting stress on protected circuitry during surge |
| PPPM | 500 W - peak pulse power handling with 10/1000 μs waveform, enabling high-energy transient suppression |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), supporting inrush tolerance |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMA (DO-214AC) - surface-mount package with 0.208" x 0.157" footprint, optimized for automated assembly |
Pinout & Package
SMA (DO-214AC) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode (banded end) | Reverse-biased terminal / high-side connection | Connected to protected line (e.g., 12 V rail or sensor output); conducts when Vin exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction (M3 suffix) | Meets environmental compliance requirements for automotive and industrial OEMs without compromising surge robustness |
| Glass-passivated chip junction | Ensures stable VBR tolerance, low leakage (<1.0 μA), and long-term reliability under thermal cycling |
| MSL Level 1 moisture sensitivity | Enables unlimited floor life and reflow compatibility up to 260 °C peak without baking |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤12.9 V during 38.8 A surges, preventing ADC saturation and latch-up in 3.3 V/5 V signal chains. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and contact bounce. IC Role / Device Role / Timing Role: Standoff protector on dry-contact inputs, absorbing energy from inductive coil de-energization. Use Value: Withstands 500 W peak pulses while maintaining <1.0 μA leakage at 24 V nominal, ensuring clean logic-level detection. |
| DC Power Rail Protection | Consumer USB Port ESD Suppression |
Use Scenario: Secondary overvoltage protection on 12 V supply rails feeding motor drivers and communication ICs in robotics systems. IC Role / Device Role / Timing Role: Fast-clamping TVS placed after primary DC/DC converter output filter. Use Value: Clamps load-dump transients to 12.9 V within nanoseconds, preserving MOSFET gate oxide integrity and regulator stability. | Use Scenario: ESD protection for VBUS line in USB 2.0 peripheral ports subjected to ±15 kV air discharge per IEC 61000-4-2. IC Role / Device Role / Timing Role: Unidirectional shunt device between VBUS and GND, triggered only during overvoltage events. Use Value: Delivers sub-1 ns response time and 12.9 V clamping, preventing damage to USB controller PHY without affecting 5 V regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.5A-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Approved for commercial-grade use only; lacks halogen-free certification required by some automotive Tier 1s | Select when halogen-free compliance is not mandated and cost optimization is prioritized |
| SMA5J7.5AHE3_A/H | Identical electrical specs plus AEC-Q101 qualification; uses HE3 suffix and H tape/reel code | Qualified for automotive under-hood applications (−55 °C to +150 °C); requires automotive traceability | Select when functional safety or automotive qualification is mandatory for production deployment |
Compared with SMA5J7.5A-M3/61, the E3 variant offers identical surge performance at lower material cost but lacks halogen-free status, while the HE3 variant adds AEC-Q101 qualification for automotive use - neither is pin-compatible drop-in replacements due to differing compliance and traceability requirements.
Availability
SMA5J7.5A-M3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and DC power rail safeguarding requiring stable component supply, halogen-free compliance, and automated SMT placement support.
Supply support for SMA5J7.5A-M3/61 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 and application-specific performance.
The SMA5J series is part of Vishay's high-power-density TRANSZORB® TVS platform, engineered for rugged transient suppression in automotive, industrial, and telecom infrastructure where compact size and high surge robustness are essential.
FAQ
What is the clamping voltage of the SMA5J7.5A-M3/61 under maximum rated surge current?
The SMA5J7.5A-M3/61 has a maximum clamping voltage (VC) of 12.9 V when subjected to its rated peak pulse current of 38.8 A using the 10/1000 μs waveform. This value is measured per test condition specified in the Vishay datasheet document 88875 and reflects worst-case voltage seen by protected circuitry during standardized surge events.
Is the SMA5J7.5A-M3/61 suitable for automotive applications?
The SMA5J7.5A-M3/61 is halogen-free and RoHS-compliant but not AEC-Q101 qualified. It operates across −55 °C to +150 °C and supports automotive environments where qualification is not mandated; for AEC-Q101–required designs, the SMA5J7.5AHE3_A/H variant must be used instead of SMA5J7.5A-M3/61.
What does the "M3" suffix indicate in SMA5J7.5A-M3/61?
The "M3" suffix in SMA5J7.5A-M3/61 denotes halogen-free, RoHS-compliant construction meeting JEDEC standards for whisker resistance (Class 2) and lead finish (matte tin). It distinguishes this version from E3 (RoHS only) and HE3/HM3 (AEC-Q101 qualified) variants within the same SMA5J family.
How is polarity identified on the SMA5J7.5A-M3/61 package?
The SMA5J7.5A-M3/61 is a unidirectional TVS diode with polarity marked by a cathode band on the SMA (DO-214AC) package body. The banded end corresponds to the cathode terminal, which connects to the protected line; the opposite end is the anode, typically tied to ground or the return path in clamping configurations.
What is the thermal resistance of the SMA5J7.5A-M3/61 from junction to ambient?
The SMA5J7.5A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads per the Vishay datasheet. This value assumes standard PCB layout conditions and directly impacts steady-state power dissipation limits and transient thermal performance during repeated surge events.
SMA5J7.5A-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J7.5A-M3/61 FAQ
1.How can I place an order for SMA5J7.5A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.5A-M3/61 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 SMA5J7.5A-M3/61 reliable?
The price and inventory of SMA5J7.5A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.5A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J7.5A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.5A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.5A-M3/61?
SMA5J7.5A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.5A-M3/61 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 SMA5J7.5A-M3/61?
For technical support, including SMA5J7.5A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.5A-M3/61 requirements.
6.How does Aetrix verify that SMA5J7.5A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J7.5A-M3/61 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 SMA5J7.5A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J7.5A-M3/61?
All SMA5J7.5A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.5A-M3/61, 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 SMA5J7.5A-M3/61 part is unused and in its original packaging.
Return procedure for SMA5J7.5A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.5A-M3/61 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 …
