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Vishay General Semiconductor - Diodes Division SMP6.5A-M3/85A
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- Part No.:
- SMP6.5A-M3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP6.5A-M3/85A.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,723
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Product details
Overview
SMP6.5A-M3/85A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMP (DO-220AA) package, featuring a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 100 A peak pulse current (IPPM), and 11.2 V clamping voltage (VC) at IPPM. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and telecom equipment.
For engineers reviewing the SMP6.5A-M3/85A datasheet, SMP6.5A-M3/85A pinout, SMP6.5A-M3/85A application, or SMP6.5A-M3/85A equivalent, key selection factors include its 1.0 mm profile, MSL Level 1 rating, halogen-free RoHS-compliant construction, 150 °C max junction temperature, and verified clamping performance under standardized 10/1000 μs surge conditions.
Technical Context
This device operates as a unidirectional TVS diode, leveraging silicon avalanche technology to clamp transient overvoltages before they damage downstream circuitry. Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients induced by relay switching or ESD events.
The SMP6.5A-M3/85A is rated for 400 W peak pulse power with a 10/1000 μs waveform, derated above 25 °C per published thermal curves, and exhibits 2.5 V maximum forward voltage at 25 A - critical for bidirectional protection design where forward conduction may occur during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum reverse working voltage before clamping begins; sets operating margin below breakdown |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - defines guaranteed avalanche initiation range for reliable turn-on threshold |
| VC @ IPPM | 11.2 V - clamped voltage seen by protected circuit at 100 A surge; determines stress on downstream components |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform; defines transient energy absorption capability |
| IPPM | 100 A - maximum non-repetitive surge current it can safely divert without degradation |
| TJ max | +150 °C - maximum junction temperature; enables operation in high-ambient industrial environments |
| RθJA | 250 °C/W - thermal resistance junction-to-ambient; informs PCB copper pad sizing for thermal management |
Pinout & Package
Package: SMP (DO-220AA), surface-mount, single-ended unidirectional configuration with cathode indicated by color band. Dimensions: 3.61 mm × 2.18 mm × 1.0 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or reverse clamping | Connected to protected line; conducts surge current toward cathode during transient event |
| Cathode | Current exit terminal during clamping; marked with color band | Typically tied to ground or lower-potential rail; establishes polarity-sensitive protection direction |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile packaging | 1.0 mm height enables use in space-constrained portable and modular electronics |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating moisture sensitivity handling |
| Halogen-free & RoHS | M3 suffix confirms industrial-grade compliance with environmental and reliability standards |
| 400 W pulse rating | Validated under JEDEC-standard 10/1000 μs waveform - matches common IEC 61000-4-5 test requirements |
| Low clamping ratio | VC/VWM = 11.2/6.5 ≈ 1.72 - ensures minimal overvoltage overshoot during surge events |
Applications
| Industrial Motor Control | Telecom Power Interface |
|---|---|
Use Scenario: Protection of gate drivers and microcontrollers from flyback voltage spikes generated by solenoid and relay coils in PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed across coil terminals or between gate driver output and ground. Use Value: Clamps 100 A surges to ≤11.2 V within nanoseconds, preventing latch-up or oxide rupture in 3.3 V/5 V logic interfaces. |
Use Scenario: Surge protection on -48 V DC power input of base station remote radio units exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Primary front-end TVS on power rail, coordinated with upstream GDT and downstream polymer PTC. Use Value: Absorbs 400 W pulses without degradation, maintaining system uptime under repeated 10/1000 μs threat waveforms. |
| Automotive Body Electronics | Consumer Sensor Hub |
Use Scenario: Input line protection for LIN bus transceivers and window lift control ICs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional suppressor on LIN data line referenced to battery ground. Use Value: Withstands 150 °C ambient and meets AEC-Q200 stress requirements when mounted on 5 mm × 5 mm copper pads. |
Use Scenario: ESD and EFT protection on analog outputs of environmental sensor arrays (temperature/humidity/pressure) in smart home hubs. IC Role / Device Role / Timing Role: Point-of-entry TVS on 0–3.3 V analog signal traces before ADC inputs. Use Value: 11.2 V clamping ensures signal integrity remains intact during ±8 kV contact ESD events per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP6.0A-M3/85A | Lower VWM (6.0 V), higher IPPM (38.8 A), slightly lower VC (10.3 V) | Better suited for 5 V systems with tighter clamping margin; less headroom for supply tolerance | Select when protecting 5 V logic rails where lower clamping voltage outweighs reduced standoff margin |
| SMP7.0A-M3/85A | Higher VWM (7.0 V), lower IPPM (33.3 A), higher VC (12.0 V) | Preferred for 6–7 V bias rails with higher transient energy tolerance but relaxed clamping requirement | Choose for 6.5–7 V sensor supply lines where higher standoff reduces leakage and improves noise immunity |
Compared with SMP6.5A-M3/85A, SMP6.0A-M3/85A offers tighter clamping at the cost of reduced operating margin, while SMP7.0A-M3/85A increases standoff headroom but raises clamping stress on downstream devices - selection depends on system voltage tolerance and surge energy profile.
Availability
SMP6.5A-M3/85A is available at Aetrix Electronics and suitable for industrial motor control, telecom power interface, and automotive body electronics requiring stable component supply, long-term lifecycle support, and consistent M3-grade material compliance.
Supply support for SMP6.5A-M3/85A 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, and protection devices with emphasis on reliability, thermal performance, and application-specific optimization.
The SMP series was designed specifically for high-density surface-mount transient suppression in space-constrained industrial, telecom, and automotive systems - prioritizing low profile, robust surge handling, and automated assembly compatibility.
FAQ
What is the maximum clamping voltage of the SMP6.5A-M3/85A under standard test conditions?
The SMP6.5A-M3/85A has a maximum clamping voltage (VC) of 11.2 V when subjected to its rated peak pulse current (IPPM) of 100 A using a 10/1000 μs waveform. This value is measured at TA = 25 °C with the device mounted on 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay datasheet document 88481.
Is the SMP6.5A-M3/85A suitable for automotive applications per AEC-Q200?
The SMP6.5A-M3/85A is not officially qualified to AEC-Q200, though its 150 °C maximum junction temperature, MSL Level 1 rating, and industrial-grade M3 construction support use in non-safety-critical automotive body electronics. For AEC-Q200-compliant designs, Vishay's Automotive SMP-A series should be evaluated instead of the standard SMP6.5A-M3/85A.
What does the "/85A" suffix indicate in SMP6.5A-M3/85A?
"/85A" denotes the preferred packaging option: 13-inch diameter plastic tape and reel, containing 10,000 units. This contrasts with "/84A", which specifies a 7-inch reel holding 3,000 units. Both share identical electrical and mechanical specifications - only the delivery format differs for SMP6.5A-M3/85A.
Does the SMP6.5A-M3/85A have bidirectional capability?
No, the SMP6.5A-M3/85A is a unidirectional transient voltage suppressor. Its cathode is marked with a color band, and it conducts only when the anode is more positive than the cathode by ≥VBR. For bidirectional protection, two SMP6.5A-M3/85A devices must be connected in series opposition, or a dedicated bidirectional part like SMBJ6.5A should be selected.
What is the thermal resistance junction-to-lead (RθJL) for SMP6.5A-M3/85A?
The SMP6.5A-M3/85A has a typical thermal resistance junction-to-lead (RθJL) of 50 °C/W, as stated in the Thermal Characteristics table of the Vishay datasheet. This parameter supports thermal modeling when the device is soldered directly to PCB copper planes and helps determine safe power dissipation limits under repetitive surge conditions.
SMP6.5A-M3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 35.7A
- Power - Peak Pulse:
- 400W
- 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-220AA (SMP)
SMP6.5A-M3/85A FAQ
1.How can I place an order for SMP6.5A-M3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP6.5A-M3/85A 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 SMP6.5A-M3/85A reliable?
The price and inventory of SMP6.5A-M3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP6.5A-M3/85A is usually 5 days.
3.What payment methods are accepted for SMP6.5A-M3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP6.5A-M3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP6.5A-M3/85A?
SMP6.5A-M3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP6.5A-M3/85A 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 SMP6.5A-M3/85A?
For technical support, including SMP6.5A-M3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP6.5A-M3/85A requirements.
6.How does Aetrix verify that SMP6.5A-M3/85A is sourced from the original manufacturer or authorized distributors?
All SMP6.5A-M3/85A 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 SMP6.5A-M3/85A meets industry standards.
7.What is the process for return or replacement of SMP6.5A-M3/85A?
All SMP6.5A-M3/85A units undergo pre-shipment inspection (PSI). If there is an issue with SMP6.5A-M3/85A, 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 SMP6.5A-M3/85A part is unused and in its original packaging.
Return procedure for SMP6.5A-M3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP6.5A-M3/85A Tags
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