My Inquiry
My Account
Microchip Technology MDA3KP6.5AE3
- Part No.:
- MDA3KP6.5AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP6.5AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,199
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MDA3KP6.5AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) diode with 6.5 V standoff voltage (VWM), 7.22–7.98 V breakdown voltage (V(BR)), and 11.2 V clamping voltage (VC) at 267.9 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in DC power rails.
For engineers reviewing the MDA3KP6.5AE3 datasheet, MDA3KP6.5AE3 pinout, MDA3KP6.5AE3 application, or MDA3KP6.5AE3 equivalent, key selection criteria include its 6.5 V working voltage, sub-100 ps response time, RoHS-compliant e3 termination, 5 g mass, and MIL-PRF-19500 upscreening capability for high-reliability aerospace and defense systems.
Technical Context
The MDA3KP6.5AE3 operates as a unidirectional avalanche diode with a defined cathode on odd-numbered pins and is rated for continuous operation from –55 °C to +150 °C junction temperature. Its clamping behavior is characterized at 10/1000 µs waveform with 3000 W peak pulse power and <5 ns response for bidirectional variants - though this part is unidirectional, its forward clamping voltage is 4.0 V at 500 A.
It meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, requires no dry pack, and undergoes 3σ lot norm screening on standby current (ID). All units are surge-tested per specification, and polarity is marked by a dot indicating Pin 1 cathode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 7.22–7.98 V @ I(BR) - guaranteed avalanche onset range defining turn-on threshold under test current |
| VC @ IPP | 11.2 V @ 267.9 A - maximum voltage seen across terminals during 10/1000 µs transient, limiting downstream stress |
| PPP | 3000 W @ 10/1000 µs - peak transient energy absorption capacity under standard surge waveform |
| ID @ VWM | 500 µA - leakage current at rated standoff voltage, critical for low-power or battery-backed circuits |
| TJ/TSTG | –55 to +150 °C - operational and storage temperature envelope enabling use in harsh industrial and avionics environments |
| Package | Surface-mount vertical TO-277A (3-pin) - compact footprint with defined pin 1 cathode marking and 5 g mass |
Pinout & Package
MDA3KP6.5AE3 uses a 3-pin vertical surface-mount TO-277A package (case outline per RF01243 Rev B, Page 6), void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity marked by a dot indicating Pin 1 cathode. Odd-numbered pins are cathodes per device polarity convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Primary current sink terminal during transient clamping; connects to protected line side |
| Pin 2 | Anode | Common anode node shared across internal TVS elements; ties to ground or return path |
| Pin 3 | Cathode | Second cathode terminal for multi-line protection; enables dual-rail or differential configuration |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Enables robust protection against IEC61000-4-5 Class 4 surges (42 Ω source) without derating at 25 °C |
| Unidirectional construction | Provides DC-biased rail protection with asymmetric clamping-no reverse conduction during normal operation |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for aerospace, defense, and space applications via traceable wafer/assembly lots |
| Level 1 moisture sensitivity | Eliminates bake-out requirement before reflow, reducing manufacturing cost and process complexity |
| e3 RoHS compliance | Meets EU Directive 2011/65/EU with lead-free terminations while retaining solderability per MIL-STD-750 Method 2026 |
Applications
| Industrial Motor Drives | Avionics Power Distribution |
|---|---|
Use Scenario: Protection of 24 V DC control inputs against inductive kickback from relay coils and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input line and chassis ground to clamp transients below 12 V. Use Value: Limits voltage excursion to 11.2 V at 267.9 A, preventing latch-up or damage to microcontroller GPIOs and optocouplers. | Use Scenario: Secondary lightning surge protection on 28 V aircraft bus lines per DO-160 Section 22. IC Role / Device Role / Timing Role: Standoff-rated TVS installed at equipment interface to absorb 42 Ω IEC61000-4-5 Class 4 surges. Use Value: Delivers 3000 W clamping within <100 ps, meeting DO-160 transient immunity requirements without external crowbar circuitry. |
| Telecom DC Feeds | Medical Imaging Power Supplies |
Use Scenario: Surge suppression on -48 V telecom rectifier outputs exposed to induced RF and load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-line, anode-to-ground to block reverse polarity faults while clamping positive surges. Use Value: Withstands 500 µA leakage at VWM, preserving efficiency in always-on power feeds while suppressing 10/1000 µs transients. | Use Scenario: Protection of high-voltage X-ray generator control logic from switching noise generated by fast-rise IGBTs. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at FPGA or ASIC power entry point to shunt EFT bursts per IEC61000-4-4. Use Value: Sub-5 ns response ensures clamping occurs before logic thresholds are violated, maintaining deterministic system reset behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A | 600 W PPP rating, SMB package, 10.3 V VC @ 61.5 A - lower power handling and smaller thermal mass | Not qualified for MIL-PRF-19500; limited to commercial-grade industrial or consumer applications | Select when board space is constrained and surge threat level is ≤ Class 2 per IEC61000-4-5 |
| SMCJ6.5A | 1500 W PPP rating, SMC package, 11.2 V VC @ 133.9 A - half the peak power and different thermal profile | Lacks upscreening options and wafer-level traceability; not intended for aerospace deployment | Choose for cost-sensitive designs requiring basic IEC61000-4-2/4-4 compliance without extended reliability validation |
Compared with SMBJ6.5A and SMCJ6.5A, the MDA3KP6.5AE3 delivers double the pulse power of SMCJ6.5A and five times that of SMBJ6.5A, supports military-grade screening, and maintains tighter V(BR) tolerance (±5%) - making it uniquely suitable for mission-critical 24–28 V systems where single-event failure is unacceptable.
Availability
MDA3KP6.5AE3 is available at Aetrix Electronics and suitable for industrial motor drives, avionics power distribution, and telecom DC feed applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MDA3KP6.5AE3 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
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA series was engineered specifically for high-energy transient suppression in safety-critical systems, emphasizing MIL-PRF-19500 compliance, lot traceability, and validated performance under extreme thermal and surge stress.
FAQ
What is the clamping voltage of MDA3KP6.5AE3 and how is it measured?
The MDA3KP6.5AE3 has a maximum clamping voltage (VC) of 11.2 V, measured at 267.9 A peak pulse current under the standardized 10/1000 µs double-exponential waveform. This value represents the highest voltage the device allows across its terminals during a surge event, ensuring downstream components remain below their absolute maximum ratings. The test is performed per JEDEC standards and confirmed on every production lot.
Is MDA3KP6.5AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MDA3KP6.5AE3 is RoHS compliant. The 'e3' suffix explicitly denotes lead-free terminations meeting EU Directive 2011/65/EU, with matte-tin plating that retains full solderability per MIL-STD-750 Method 2026. This designation appears in the official Microsemi nomenclature guide (RF01243 Rev B, Page 2) and is verified in manufacturing documentation.
Can MDA3KP6.5AE3 be used for bidirectional transient protection?
No, MDA3KP6.5AE3 is unidirectional only. Its part number lacks the 'C' suffix required for bidirectional variants (e.g., MDA3KP6.5CE3). The device conducts only during positive transients relative to its cathode-anode orientation and will not suppress reverse-polarity surges. For bidirectional protection, select a 'C'-suffixed variant with matched VWM and PPP ratings.
What is the standoff voltage rating and why is it important for MDA3KP6.5AE3 selection?
The MDA3KP6.5AE3 has a rated reverse standoff voltage (VWM) of 6.5 V - the maximum continuous DC or peak AC voltage it blocks without significant leakage. This parameter must exceed the normal operating voltage of the protected line by ≥10% to avoid false triggering. Exceeding VWM risks premature conduction and accelerated wear, especially under thermal stress.
Does MDA3KP6.5AE3 require special handling or baking prior to PCB assembly?
No, MDA3KP6.5AE3 does not require baking. It is rated IPC/JEDEC J-STD-020B Level 1 for moisture sensitivity, meaning it may be stored indefinitely at ambient conditions and placed directly into reflow without preconditioning. This eliminates bake cycles, reduces process steps, and avoids thermal stress on the epoxy package before soldering.
MDA3KP6.5AE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 16-SMD, Gull Wing
- Series:
- MDA
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 267.9A
- Power - Peak Pulse:
- 3000W (3kW)
- 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:
- -
MDA3KP6.5AE3 FAQ
1.How can I place an order for MDA3KP6.5AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP6.5AE3 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 MDA3KP6.5AE3 reliable?
The price and inventory of MDA3KP6.5AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP6.5AE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP6.5AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP6.5AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP6.5AE3?
MDA3KP6.5AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP6.5AE3 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 MDA3KP6.5AE3?
For technical support, including MDA3KP6.5AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP6.5AE3 requirements.
6.How does Aetrix verify that MDA3KP6.5AE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP6.5AE3 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 MDA3KP6.5AE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP6.5AE3?
All MDA3KP6.5AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP6.5AE3, 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 MDA3KP6.5AE3 part is unused and in its original packaging.
Return procedure for MDA3KP6.5AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP6.5AE3 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
