My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMPC8.5A-M3/86A
- Part No.:
- SMPC8.5A-M3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC8.5A-M3/86A.pdf
- Description:
- TVS DIODE 8.5VWM 14.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,533
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMPC8.5A-M3/86A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, designed for clamping inductive-switching transients on 8.5 V DC power rails. It delivers 1500 W peak pulse power (10/1000 μs), clamps at ≤14.4 V under 20 A surge, and features 1.0 μA max reverse leakage at 8.5 V stand-off voltage - used to protect MOSFET gate drivers and sensor signal lines in automotive body control modules.
For engineers reviewing the SMPC8.5A-M3/86A datasheet, SMPC8.5A-M3/86A pinout, SMPC8.5A-M3/86A application, or SMPC8.5A-M3/86A equivalent, key selection criteria include unidirectional polarity, 85 °C/W thermal resistance, MSL Level 1 rating, 1.1 mm profile for automated placement, and compatibility with FR4 PCBs using standard 2 oz copper footprints.
Technical Context
This TVS diode operates as a clamping device in series with DC supply paths or parallel to sensitive inputs, activating when transient voltage exceeds its 9.44–10.4 V breakdown range at 1 mA test current. Its low incremental surge resistance and sub-nanosecond response time enable effective suppression of ESD and load-dump events without affecting steady-state operation.
The SMPC8.5A-M3/86A uses a single-junction silicon avalanche structure housed in an SMPC (TO-277A) thermally enhanced package with cathode-band polarity marking. It is rated for -55 °C to +150 °C junction temperature and meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.44 V / 10.4 V at 1 mA - defines precise turn-on threshold for reliable clamping onset |
| VWM | 8.5 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | ≤14.4 V at 20 A - ensures protected circuitry sees no more than 14.4 V during worst-case surge |
| PPPM | 1500 W (10/1000 μs) - supports high-energy transients common in automotive and industrial switching |
| RθJA | 85–100 °C/W - determines thermal derating on standard FR4 PCBs with 2 oz copper |
| TJ max | +150 °C - enables operation in under-hood and industrial ambient environments |
| MSL Level | Level 1 (260 °C peak) - allows single-reflow assembly without moisture sensitivity concerns |
Pinout & Package
Package: SMPC (TO-277A), 3-terminal surface-mount case with 1.1 mm typical height, matte tin-plated leads, UL 94 V-0 molding compound, and cathode band marking on terminal 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode 1 | Primary anode connection; electrically tied to Terminal 2 internally in unidirectional configuration |
| Terminal 2 | Anode 2 | Second anode terminal; dual-anode layout improves current sharing and thermal distribution |
| Terminal 3 | Cathode | Cathode end marked by band; connects to protected line or ground return path for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm) | Enables use in space-constrained modules such as automotive ECUs and portable industrial sensors |
| Unidirectional polarity | Provides asymmetric clamping ideal for DC power rail protection without forward conduction issues |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients like ISO 7637-2 Pulse 1/2a |
| AEC-Q101 not qualified | This variant (M3/86A suffix) is industrial-grade only; AEC-Q101 requires HM3 suffix and AN-series part numbers |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global electronics manufacturing and recycling |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protects microcontroller I/O pins and MOSFET gate drivers from relay coil flyback and load dump in BCM power distribution networks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and ground, clamping transients within 1 ns to prevent latch-up or gate oxide damage. Use Value: Limits clamped voltage to ≤14.4 V at 20 A surge, ensuring downstream 16 V-rated logic remains within safe operating area. | Use Scenario: Shields 24 V digital input circuits in programmable logic controllers from field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb repetitive 1 kV/500 A transients per IEC 61000-4-5 Level 3. Use Value: Maintains <1.0 μA leakage at 24 V nominal, preserving input threshold accuracy while surviving >1000 surge cycles. |
| Consumer Appliance Motor Drive | Telecom Power Supply Rail |
Use Scenario: Safeguards H-bridge driver ICs in smart appliance motor controls against back-EMF spikes during PWM commutation. IC Role / Device Role / Timing Role: Mounted directly at motor driver supply pin to minimize trace inductance and suppress sub-100 ns transients. Use Value: Delivers 1500 W peak pulse power with ≤14.4 V clamping, preventing overvoltage stress on 20 V-rated gate drivers. | Use Scenario: Clamps voltage excursions on +48 V telecom rectifier outputs caused by hot-swap transients and lightning-induced surges. IC Role / Device Role / Timing Role: Placed at DC-DC converter input to limit surge energy entering primary-side control circuitry. Use Value: Withstands 10/1000 μs surges up to 20 A while maintaining thermal stability via 85 °C/W RθJA on standard PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5A-E3/5A | DO-214AC package; higher RθJA (120 °C/W); same VBR, VC, PPPM | Larger footprint; less suitable for ultra-thin designs requiring <1.2 mm height | Select when board space permits larger package and legacy DO-214AC footprint is standardized |
| SMCJ8.5AHE3/73 | DO-214AB package; 1500 W rating; higher VC (15.0 V); RθJA = 100 °C/W | Higher clamping voltage reduces margin for 12 V systems; lower thermal efficiency | Choose only if existing design uses SMC package and clamping margin allows 15.0 V |
Compared with SMAJ8.5A-E3/5A and SMCJ8.5AHE3/73, the SMPC8.5A-M3/86A offers superior thermal performance (85 °C/W vs. ≥100 °C/W) and minimal 1.1 mm height - critical for next-gen compact automotive and industrial modules where board thickness and thermal density are constrained.
Availability
SMPC8.5A-M3/86A is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and telecom power supply rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMPC8.5A-M3/86A 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 SMPC series was developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for space- and thermal-constrained automotive and industrial electronics.
FAQ
What is the exact breakdown voltage range of the SMPC8.5A-M3/86A?
The SMPC8.5A-M3/86A has a specified breakdown voltage (VBR) range of 9.44 V to 10.4 V measured at 1 mA test current, per Vishay Document 89116. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage protection design for 8.5 V nominal systems. The SMPC8.5A-M3/86A maintains this specification under standard test conditions at TA = 25 °C.
Is the SMPC8.5A-M3/86A AEC-Q101 qualified?
No, the SMPC8.5A-M3/86A is not AEC-Q101 qualified. It carries the M3 industrial-grade suffix and complies with halogen-free and RoHS requirements. For AEC-Q101 qualification, Vishay specifies the HM3 suffix with AN-series variants (e.g., SMPC22ANHM3), which are explicitly listed as qualified in the datasheet. The SMPC8.5A-M3/86A remains suitable for non-automotive industrial and consumer applications.
What does the /86A package code indicate for SMPC8.5A-M3/86A?
Per Vishay's ordering information, the /86A suffix denotes a 7-inch diameter plastic tape-and-reel packaging format containing 1500 units per reel. This is distinct from /87A (13-inch reel, 6500 units) and applies exclusively to SMPC5.0A-M3 through SMPC36A-M3 variants. The /86A code does not affect electrical or thermal specifications of the SMPC8.5A-M3/86A - it is purely a packaging and logistics identifier.
Can SMPC8.5A-M3/86A be used in bidirectional configurations?
No, the SMPC8.5A-M3/86A is strictly unidirectional and must be installed with the cathode band oriented toward the protected line's positive potential. Bidirectional operation would require two devices in series opposition or a dedicated bidirectional TVS such as the SMBJ8.5CA. Using SMPC8.5A-M3/86A in reverse polarity risks permanent failure due to avalanche breakdown outside its rated parameters.
What is the maximum allowable surge current for SMPC8.5A-M3/86A?
The SMPC8.5A-M3/86A supports a maximum peak pulse current (IPPM) of 20 A under the standard 10/1000 μs waveform, as confirmed in the Electrical Characteristics table of Vishay Document 89116. This value corresponds directly to its 1500 W peak pulse power rating and 14.4 V clamping voltage. Exceeding 20 A may cause irreversible degradation or short-circuit failure of the SMPC8.5A-M3/86A.
SMPC8.5A-M3/86A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- TransZorb®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 104.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- TO-277A (SMPC)
SMPC8.5A-M3/86A FAQ
1.How can I place an order for SMPC8.5A-M3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC8.5A-M3/86A 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 SMPC8.5A-M3/86A reliable?
The price and inventory of SMPC8.5A-M3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC8.5A-M3/86A is usually 5 days.
3.What payment methods are accepted for SMPC8.5A-M3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC8.5A-M3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC8.5A-M3/86A?
SMPC8.5A-M3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC8.5A-M3/86A 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 SMPC8.5A-M3/86A?
For technical support, including SMPC8.5A-M3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC8.5A-M3/86A requirements.
6.How does Aetrix verify that SMPC8.5A-M3/86A is sourced from the original manufacturer or authorized distributors?
All SMPC8.5A-M3/86A 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 SMPC8.5A-M3/86A meets industry standards.
7.What is the process for return or replacement of SMPC8.5A-M3/86A?
All SMPC8.5A-M3/86A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC8.5A-M3/86A, 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 SMPC8.5A-M3/86A part is unused and in its original packaging.
Return procedure for SMPC8.5A-M3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC8.5A-M3/86A 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 …
