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Vishay General Semiconductor - Diodes Division SMP30A-M3/84A
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- Part No.:
- SMP30A-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP30A-M3/84A.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,122
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Product details
Overview
SMP30A-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the eSMP® (DO-220AA) package, rated for 400 W peak pulse power (10/1000 μs), 30 V stand-off voltage (VWM), and 48.4 V maximum clamping voltage at 8.3 A peak surge current. It protects MOSFETs and ICs against inductive switching transients in industrial power supplies and telecom interfaces.
For engineers reviewing the SMP30A-M3/84A datasheet, SMP30A-M3/84A pinout, SMP30A-M3/84A application, or SMP30A-M3/84A equivalent, key selection criteria include clamping voltage (VC = 48.4 V), breakdown voltage range (33.3–36.8 V), unidirectional polarity, MSL Level 1 rating, and DO-220AA footprint compatibility with automated SMT placement.
Technical Context
The SMP30A-M3/84A operates as a unidirectional TVS diode with avalanche breakdown behavior, designed to clamp fast-rising transients before sensitive downstream components experience overvoltage stress. Its low incremental surge resistance and 1.0 mm profile support high-density PCB layouts in space-constrained power and interface protection circuits.
It meets J-STD-020 MSL Level 1 with a 260 °C reflow peak, uses matte tin-plated leads compliant with JESD 22-B102, and features UL 94 V-0 molding compound. The device is rated for TJ = -55 °C to +150 °C and derates linearly above TA = 25 °C per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum reverse stand-off voltage before significant leakage; defines operating threshold for normal circuit conditions |
| VBR min/max | 33.3 V / 36.8 V - Breakdown voltage range at 1.0 mA test current; ensures reliable turn-on within specified tolerance |
| VC @ IPPM | 48.4 V - Clamping voltage at 8.3 A peak pulse current (10/1000 μs); determines worst-case voltage seen by protected IC |
| PPPM | 400 W - Peak pulse power handling capability; supports robust protection against IEC 61000-4-5 level 4 surges |
| IFSM | 40 A - Non-repetitive forward surge current rating (10 ms half-sine); enables survival during infrequent fault events |
| RθJA | 250 °C/W - Junction-to-ambient thermal resistance; requires ≥5.0 mm × 5.0 mm copper pad per terminal for full rating |
Pinout & Package
Package: SMP (DO-220AA), 2-terminal surface-mount case with cathode band marking; dimensions 3.61 mm × 2.18 mm × 1.0 mm (L × W × H); UL 94 V-0 compliant molding compound; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., DC bus or signal trace); conducts surge current toward ground path |
| Cathode | Current exit point during clamping | Marked with color band; tied to system ground or low-impedance return path to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-220AA package | 1.0 mm height enables use in ultra-thin consumer and telecom modules without mechanical interference |
| 400 W peak pulse power (10/1000 μs) | Supports EN 61000-4-5 surge immunity up to 4 kV (line-earth) with appropriate PCB layout |
| Clamping ratio VC/VBR ≈ 1.45 | Indicates efficient energy diversion with minimal overvoltage margin beyond breakdown |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows standard lead-free reflow without baking |
| Halogen-free, RoHS-compliant, JESD 201 Class 2 whisker tested | Meets industrial and automotive supply chain requirements for long-term reliability and environmental compliance |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and microcontrollers from inductive kickback during MOSFET/IGBT switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or gate-source terminals to clamp transient spikes below 50 V. Use Value: Prevents latch-up or oxide damage in 30 V-rated logic-level MOSFETs by limiting clamped voltage to 48.4 V at 8.3 A. |
Use Scenario: Surge suppression on 24 V or 48 V DC input rails of VoIP gateways and base station power modules. IC Role / Device Role / Timing Role: Primary overvoltage clamp on front-end power entry, coordinated with upstream fuses and common-mode chokes. Use Value: Maintains system uptime under IEC 61000-4-5 combination wave surges by absorbing 400 W without failure. |
| Automotive Body Control Modules | Consumer USB-C Power Delivery |
Use Scenario: Protection of LIN bus transceivers and load switches against load dump and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC rail or LIN data line, selected for 30 V VWM to tolerate battery ripple while blocking normal operation. Use Value: Survives 12 V system transients up to ±35 V with clamping below 48.4 V, preserving signal integrity and IC longevity. |
Use Scenario: Secondary overvoltage clamp on USB-C VBUS lines after primary protection, guarding PD controllers and port power switches. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to USB-C connector to suppress ESD and hot-swap overshoot. Use Value: Leverages 1.0 mm height and DO-220AA footprint to fit tight connector keep-out zones while delivering 400 W pulse handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ30A | Same DO-214AC (SMA) package; higher RθJA (350 °C/W); VC = 48.4 V at 8.3 A; VWM = 30 V; same PPPM | Requires larger thermal pads due to higher thermal resistance; less suitable for ultra-thin designs | Select SMP30A-M3/84A when board height < 1.1 mm is mandatory or MSL Level 1 reflow is required without pre-bake |
| ON Semiconductor SMCJ30A | DO-214AB (SMC) package; 2.5× larger footprint; VC = 48.4 V at 8.3 A; VWM = 30 V; PPPM = 1500 W | Higher power rating but incompatible with dense layouts; better for high-energy surges where space permits | Choose SMP30A-M3/84A for space-constrained SMT designs needing 400 W protection in minimal area, not 1500 W |
Compared with SMAJ30A and SMCJ30A, the SMP30A-M3/84A delivers identical electrical protection (VWM, VC, PPPM) in a 40 % smaller footprint and 1.0 mm height-critical for modern compact power modules where thermal pad area and Z-height are constrained.
Availability
SMP30A-M3/84A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, and automotive body control modules requiring stable component supply, halogen-free compliance, and MSL Level 1 manufacturability.
Supply support for SMP30A-M3/84A 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, efficiency, and application-specific performance.
The SMP series was developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for next-generation power conversion and interface protection in space-limited electronics.
FAQ
What is the maximum clamping voltage of the SMP30A-M3/84A under standard test conditions?
The SMP30A-M3/84A has a maximum clamping voltage (VC) of 48.4 V when subjected to its rated peak pulse current of 8.3 A using a 10/1000 μs waveform. This value is measured at the device terminals with specified PCB mounting conditions (5.0 mm × 5.0 mm copper pads per terminal), and it defines the upper voltage limit imposed on protected circuitry during surge events. The SMP30A-M3/84A maintains this clamping performance across its qualified temperature range.
Is the SMP30A-M3/84A suitable for lead-free reflow soldering processes?
Yes, the SMP30A-M3/84A is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, making it fully compatible with standard lead-free soldering profiles. Its matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability requirements, and the device passes JESD 201 Class 2 whisker testing. No pre-baking is required prior to reflow, simplifying manufacturing flow for the SMP30A-M3/84A.
How does the SMP30A-M3/84A differ from the SMP30A-M3/85A variant?
The SMP30A-M3/84A and SMP30A-M3/85A share identical electrical specifications, package (DO-220AA), and marking code (CK). Their only difference is packaging configuration: the /84A suffix denotes 3000-unit 7-inch tape-and-reel delivery, while /85A indicates 10,000-unit 13-inch tape-and-reel. Both variants use the same base P/N-M3 construction-halogen-free, RoHS-compliant, and industrial-grade-with no functional or reliability distinction between them.
What is the thermal resistance junction-to-ambient (RθJA) for the SMP30A-M3/84A, and how is it achieved?
The SMP30A-M3/84A has a typical RθJA of 250 °C/W, measured under JEDEC-standard conditions using 5.0 mm × 5.0 mm copper pad areas attached to each terminal on a FR-4 PCB. This value assumes minimum recommended pad layout per the datasheet's mechanical drawing. Reducing pad size or using thinner copper will increase RθJA, degrading thermal performance and limiting sustained surge capability for the SMP30A-M3/84A.
Can the SMP30A-M3/84A be used in bidirectional transient protection applications?
No, the SMP30A-M3/84A is a unidirectional TVS diode, as confirmed by its polarity marking (cathode band), VBR specification only in the reverse direction, and absence of symmetrical breakdown characteristics. For bidirectional protection, a dedicated bidirectional part such as the SMP30CA-M3/84A (if available in the family) or a pair of unidirectional devices in anti-parallel configuration would be required-not the SMP30A-M3/84A alone.
SMP30A-M3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 8.3A
- 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)
SMP30A-M3/84A FAQ
1.How can I place an order for SMP30A-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP30A-M3/84A 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 SMP30A-M3/84A reliable?
The price and inventory of SMP30A-M3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP30A-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP30A-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP30A-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP30A-M3/84A?
SMP30A-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP30A-M3/84A 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 SMP30A-M3/84A?
For technical support, including SMP30A-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP30A-M3/84A requirements.
6.How does Aetrix verify that SMP30A-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP30A-M3/84A 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 SMP30A-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP30A-M3/84A?
All SMP30A-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP30A-M3/84A, 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 SMP30A-M3/84A part is unused and in its original packaging.
Return procedure for SMP30A-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP30A-M3/84A Tags
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