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Microchip Technology 1PMT5950/TR13
- Part No.:
- 1PMT5950/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5950/TR13.pdf
- Description:
- DIODE ZENER 110V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,150
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Product details
Overview
1PMT5950B from Microsemi is a 110 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 300 Ω dynamic impedance at 3.4 mA test current and 4000 µA max reverse leakage at 83.6 V. It serves as a precision voltage reference or overvoltage clamp in industrial power supply feedback loops.
For engineers reviewing the 1PMT5950B datasheet, 1PMT5950B pinout, 1PMT5950B application, or 1PMT5950B equivalent, key selection criteria include its 110 V nominal Zener voltage, 3.0 W thermal capability via metallic tab, DO-216 mechanical outline, and ESD rating >16 kV HBM - all critical for ruggedized 24–48 V system protection designs.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range (IZT = 3.4 mA). Its thermal resistance of 30°C/W junction-to-TAB1 enables stable operation under sustained 3.0 W dissipation when mounted on a thermally adequate PCB pad.
The device features a full metallic bottom and integral locking tab that serve dual roles: eliminating solder flux entrapment during reflow and acting as a primary heat sink path. Cathode is unambiguously designated by TAB 1 per mechanical specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±5% at IZT = 3.4 mA - defines clamping threshold in overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous energy handling with proper board-level thermal design |
| Dynamic Impedance (ZZT) | 300 Ω at IZT = 3.4 mA - determines voltage regulation stiffness under small-signal load variations |
| Reverse Leakage (IR) | 4000 µA max at VR = 83.6 V - constrains standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies temperature rise per watt, guiding heatsinking requirements |
| ESD Rating | >16 kV HBM - ensures robustness against handling and system-level electrostatic events |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom and integral locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat sink interface and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit connection and mounting orientation flexibility |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W capability in footprint smaller than traditional DO-41 or DO-15 |
| Full metallic bottom | Eliminates solder flux entrapment risk during assembly, improving long-term reliability and void-free solder joints |
| Integral locking tab (TAB 1) | Serves as both cathode terminal and primary thermal conduction path - reduces junction-to-PCB thermal resistance |
| ESD rating >16 kV HBM | Provides inherent robustness against human-body-model discharge without requiring external protection components |
Applications
| Industrial Power Supply Feedback | Telecom Line Card Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converters using optocoupler-coupled feedback. IC Role / Device Role / Timing Role: Precision Zener reference providing stable 110 V reference for TL431-like error amplifier biasing. Use Value: Maintains ±5% output regulation across line/load/temperature with low 300 Ω dynamic impedance minimizing loop gain variation. | Use Scenario: Protecting 48 V DC distribution rails in telecom shelf systems from transient surges (e.g., lightning-induced). IC Role / Device Role / Timing Role: Primary shunt clamp limiting rail voltage to 110 V before downstream TVS activation. Use Value: Handles 3.0 W surge energy without degradation, leveraging metallic tab for rapid thermal dissipation into chassis ground. |
| Automated Test Equipment (ATE) Reference | Renewable Energy Inverter DC-Link Monitor |
Use Scenario: Providing stable high-voltage reference for ADC input scaling in programmable DC source modules. IC Role / Device Role / Timing Role: Low-drift Zener element establishing known 110 V reference point for calibration routines. Use Value: Tight 5% tolerance and low reverse leakage (<4000 µA) ensure measurement accuracy and minimal loading on sensing dividers. | Use Scenario: Monitoring 100–120 V DC-link voltage in solar microinverters to trigger overvoltage shutdown. IC Role / Device Role / Timing Role: Voltage threshold detector interfaced with comparator input via resistive divider. Use Value: Reliable 110 V clamping with >16 kV HBM ESD immunity prevents false trips during field deployment in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Same 110 V nominal Zener voltage, but in DO-15 package with 5.0 W rating and higher thermal resistance (50°C/W) | Requires larger PCB footprint and more copper area for equivalent thermal performance | Choose when higher power margin is needed and board space allows axial-lead or larger SMD packages |
| BZX84-C110 | 110 V Zener in SOT-23 package, rated 300 mW only, with 500 Ω typical ZZT and no metallic thermal tab | Limited to low-power signal-level clamping; unsuitable for 3.0 W energy absorption | Choose only for low-current bias/reference use where thermal constraints prohibit Powermite® mounting |
Compared with 1N5375B and BZX84-C110, the 1PMT5950B uniquely delivers 3.0 W dissipation in a compact surface-mount form with direct metal-tab thermal conduction - making it the only option among the three capable of sustained high-energy clamping in space-constrained industrial power designs.
Availability
1PMT5950B is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, automated test equipment, and renewable energy inverters requiring stable component supply with consistent Zener voltage tolerance and thermal performance.
Supply support for 1PMT5950B 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 (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 Powermite® Zener diode product line was designed specifically to deliver high-power surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding applications such as telecom infrastructure and industrial controls.
FAQ
What is the Zener voltage tolerance for 1PMT5950B?
The 1PMT5950B has a standard Zener voltage tolerance of ±5% at 110 V nominal, measured at IZT = 3.4 mA with TAB 1 held at 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the base 1PMT5950B part carries the ±5% specification per MSC0995 Rev F datasheet.
How is thermal management handled for 1PMT5950B?
The 1PMT5950B relies on its metallic TAB 1 as the primary thermal conduction path, with a specified junction-to-TAB thermal resistance of 30°C/W. To achieve its rated 3.0 W dissipation, TAB 1 must be soldered to a sufficiently sized copper pad with thermal vias - unlike plastic-packaged Zeners, it does not rely solely on lead-frame conduction.
Is 1PMT5950B compatible with standard reflow processes?
Yes, the 1PMT5950B is qualified for standard lead-free reflow profiles per J-STD-020. Its Powermite® package features a full metallic bottom and molded construction that withstands peak temperatures up to 260°C, and its compatibility with automatic insertion equipment is explicitly confirmed in the MSC0995 datasheet.
What is the maximum reverse leakage current for 1PMT5950B?
The 1PMT5950B has a maximum reverse leakage current (IR) of 4000 µA at VR = 83.6 V, as specified in the Electrical Characteristics table of the MSC0995 datasheet. This value is measured at TL = 30°C and defines the upper bound of off-state current in clamping or reference applications.
Does 1PMT5950B have polarity marking, and how is cathode identified?
Yes, the 1PMT5950B cathode is unambiguously designated by TAB 1 per the Mechanical Characteristics section of MSC0995. The device uses a DO-216 outline with TAB 1 serving as both the cathode terminal and thermal interface - no additional band or marking is required, simplifying automated optical inspection.
1PMT5950/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 110 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 300 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 83.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5950/TR13 FAQ
1.How can I place an order for 1PMT5950/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5950/TR13 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 1PMT5950/TR13 reliable?
The price and inventory of 1PMT5950/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5950/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5950/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5950/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5950/TR13?
1PMT5950/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5950/TR13 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 1PMT5950/TR13?
For technical support, including 1PMT5950/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5950/TR13 requirements.
6.How does Aetrix verify that 1PMT5950/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5950/TR13 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 1PMT5950/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5950/TR13?
All 1PMT5950/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5950/TR13, 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 1PMT5950/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5950/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5950/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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