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Vishay General Semiconductor - Diodes Division SMA6J7.5AHM3/61
- Part No.:
- SMA6J7.5AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J7.5AHM3/61.pdf
- Description:
- TVS DIODE 7.5VWM 11.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,751
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Product details
Overview
SMA6J7.5AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, with 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR at 1 mA), and 11.8 V maximum clamping voltage (VC) at 50.8 A peak pulse current (IPP) under 10/1000 µs waveform. It delivers 600 W peak pulse power and is used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment against inductive switching transients.
For engineers reviewing the SMA6J7.5AHM3/61 datasheet, SMA6J7.5AHM3/61 pinout, SMA6J7.5AHM3/61 application, or SMA6J7.5AHM3/61 equivalent, key selection criteria include clamping voltage margin relative to protected device's absolute maximum rating, unidirectional polarity requirement, 600 W 10/1000 µs surge capability, and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads per terminal.
Technical Context
This TVS operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 7.5 V, avalanches sharply at VBR = 8.33–9.21 V, and limits transient voltage to VC ≤ 11.8 V at IPP = 50.8 A (10/1000 µs). Its dynamic resistance RD = 0.051 Ω enables fast response and low overshoot during surge events.
Designed for surface-mount reliability, it meets MSL level 1 per J-STD-020, supports lead-free soldering at 260 °C peak, and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The cathode is marked by a color band; polarity is fixed and non-reversible.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum reverse working voltage before leakage exceeds 1 µA; sets upper limit for normal circuit operation. |
| VBR (min/max) | 8.33 V / 9.21 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| VC @ IPP | 11.8 V at 50.8 A (10/1000 µs) - Clamped voltage seen by protected IC/MOSFET during standard surge test. |
| PPPM (10/1000 µs) | 600 W - Peak transient energy handling capacity under IEC 61000-4-5 long-duration surge waveform. |
| ID @ VWM | 1 µA max - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes. |
| TJ max. | +150 °C - Enables use in thermally demanding industrial environments without derating below 50 °C ambient. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient on standard 5.0 mm × 5.0 mm pad layout; informs thermal design margin. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional, cathode indicated by molded band. Dimensions: 4.50 mm × 2.79 mm × 2.20 mm (L × W × H); weight 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes shunt path during transient. |
| Cathode | High-side connection point | Connected to protected line (e.g., I/O, power rail); color band identifies this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC = 11.8 V at 50.8 A ensures protected ICs with 13.5 V abs-max rating retain ≥1.7 V safety margin. |
| Automated assembly support | Low-profile SMA package and matte tin terminations meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2. |
| Surge waveform flexibility | Rated for both 10/1000 µs (600 W) and 8/20 µs (4000 W) pulses - covers IEC 61000-4-5 and lightning-induced surges. |
| Thermal robustness | 150 °C max junction temperature and MSL Level 1 rating allow reflow compatibility and extended field life in hot enclosures. |
Applications
| Industrial Motor Control | Telecom Power Interface |
|---|---|
Use Scenario: Protecting gate drivers and logic inputs of IGBTs in variable-frequency drives from inductive kickback during coil de-energization. IC Role / Device Role / Timing Role: Shunt clamping element placed across gate-source or supply-rail inputs to clamp transients below MOSFET/IC breakdown threshold. Use Value: Limits voltage spikes to ≤11.8 V, preventing gate oxide rupture and ensuring >100,000-cycle reliability under repetitive 50 A surge conditions. | Use Scenario: Safeguarding DC power input stages of VoIP gateways and base station backhaul units against lightning-induced surges on -48 V telecom rails. IC Role / Device Role / Timing Role: Primary overvoltage protection device installed at board edge, upstream of DC-DC converters and PMICs. Use Value: Withstands 4000 W (8/20 µs) surges while maintaining <1 µA leakage at nominal -48 V, avoiding false trips or standby current drain. |
| Automotive Body Control Module | Consumer Sensor Hub |
Use Scenario: Shielding LIN bus transceivers and microcontroller I/O pins in BCMs from load-dump and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and ground, triggered only during positive overvoltage events. Use Value: VWM = 7.5 V allows safe operation during 13.5 V nominal battery swings; clamps 100 V/100 ms load dump to <30 V at system-level test. | Use Scenario: Guarding analog front-end inputs of environmental sensor arrays (temperature, humidity, motion) in smart home hubs against ESD and cable discharge events. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor signal traces, placed immediately before ADC input or op-amp buffer. Use Value: 11.8 V clamping voltage preserves signal fidelity for 3.3 V ADCs; 0.051 Ω RD minimizes distortion during 8 kV HBM ESD strikes. |
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-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free; no JESD 201 Class 2 whisker test certification. | Acceptable where halogen-free mandate or whisker risk in high-reliability connectors is not required. | Select SMA6J7.5AHM3/61 when compliance with IPC-1752A halogen-free reporting and JESD 201 Class 2 whisker resistance is mandatory. |
| SMAJ7.5A-M3/61 | Lower PPPM (400 W vs. 600 W); same VWM/VBR/VC; identical SMA package and MSL rating. | Suitable for lower-energy surge environments (e.g., consumer USB ports) but insufficient for industrial 600 W IEC 61000-4-5 testing. | Choose SMA6J7.5AHM3/61 when full 600 W 10/1000 µs surge immunity is required per EN 61000-4-5 Level 4. |
Compared with SMA6J7.5A-E3/61 and SMAJ7.5A-M3/61, the SMA6J7.5AHM3/61 uniquely combines halogen-free construction, JESD 201 Class 2 whisker resistance, and 600 W surge rating - making it the only option qualified for high-reliability industrial and telecom deployments requiring all three attributes.
Availability
SMA6J7.5AHM3/61 is available at Aetrix Electronics and suitable for industrial motor control, telecom power interface, and automotive body control module designs requiring stable component supply, halogen-free compliance, and verified 600 W surge immunity.
Supply support for SMA6J7.5AHM3/61 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and AEC-Q200 qualification.
The SMA6J series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, telecom infrastructure, and automotive subsystems where consistent clamping performance and long-term stability under thermal cycling are critical.
FAQ
What is the maximum clamping voltage of the SMA6J7.5AHM3/61 under a 10/1000 µs surge?
The SMA6J7.5AHM3/61 has a maximum clamping voltage (VC) of 11.8 V at 50.8 A peak pulse current under the 10/1000 µs waveform. This value is measured per the test conditions specified in Vishay document 89460 and reflects the actual voltage imposed on protected circuitry during standardized surge events. The SMA6J7.5AHM3/61 maintains this clamping performance across its rated operating temperature range.
Is the SMA6J7.5AHM3/61 suitable for bidirectional transient protection?
No, the SMA6J7.5AHM3/61 is a unidirectional TVS diode and provides protection only against positive-going transients on the cathode side. It does not suppress negative excursions beyond its forward voltage drop (~3.5 V at 25 A). For bidirectional protection, a dedicated bidirectional part such as SMA6J7.5CA must be selected. The SMA6J7.5AHM3/61 polarity is fixed and marked by a cathode band.
What is the thermal resistance junction-to-ambient for the SMA6J7.5AHM3/61?
The SMA6J7.5AHM3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on a PCB with 5.0 mm × 5.0 mm copper pads per terminal. This value assumes standard JEDEC test conditions and directly impacts power derating above 50 °C ambient. At TA = 50 °C, the device supports 4 W continuous power dissipation, as specified in the Vishay datasheet 89460.
Does the SMA6J7.5AHM3/61 meet lead-free soldering requirements?
Yes, the SMA6J7.5AHM3/61 features matte tin-plated leads and is rated for lead-free reflow soldering with a maximum peak temperature of 260 °C, complying with J-STD-020 MSL Level 1. Its construction meets RoHS Directive 2011/65/EU and is halogen-free per Vishay specification, making it suitable for environmentally regulated manufacturing processes without requiring special flux or profile adjustments.
How does the SMA6J7.5AHM3/61 differ from the SMAJ7.5A-M3/61?
The SMA6J7.5AHM3/61 delivers 600 W peak pulse power (10/1000 µs), whereas the SMAJ7.5A-M3/61 is rated for 400 W under the same waveform. Both share identical VWM (7.5 V), VBR range, and SMA package, but the SMA6J7.5AHM3/61 is designed for higher-energy surge environments. The SMA6J7.5AHM3/61 also carries JESD 201 Class 2 whisker resistance certification, which the SMAJ7.5A-M3/61 does not specify.
SMA6J7.5AHM3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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)
SMA6J7.5AHM3/61 FAQ
1.How can I place an order for SMA6J7.5AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J7.5AHM3/61 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 SMA6J7.5AHM3/61 reliable?
The price and inventory of SMA6J7.5AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J7.5AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J7.5AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J7.5AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J7.5AHM3/61?
SMA6J7.5AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J7.5AHM3/61 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 SMA6J7.5AHM3/61?
For technical support, including SMA6J7.5AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J7.5AHM3/61 requirements.
6.How does Aetrix verify that SMA6J7.5AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J7.5AHM3/61 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 SMA6J7.5AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J7.5AHM3/61?
All SMA6J7.5AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J7.5AHM3/61, 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 SMA6J7.5AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J7.5AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J7.5AHM3/61 Tags
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