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Microchip Technology 1PMT5950/TR7
- Part No.:
- 1PMT5950/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5950/TR7.pdf
- Description:
- DIODE ZENER 110V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,367
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Product details
Overview
1PMT5950/TR7 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 30°C/W thermal resistance junction-to-tab and 83.6 mA maximum Zener current. It delivers stable voltage regulation in compact power supply rails and overvoltage protection circuits.
For engineers reviewing the 1PMT5950/TR7 datasheet, 1PMT5950/TR7 pinout, 1PMT5950/TR7 application, or 1PMT5950/TR7 equivalent, key selection criteria include its 110 V nominal Zener voltage, 300 Ω dynamic impedance at 3.4 mA test current, 4000 µA max reverse leakage at 1 V, ESD rating >16 kV HBM, and DO-216 mechanical outline compatibility with automated SMT assembly.
Technical Context
This Zener diode operates as a precision voltage reference and clamp device in DC power conditioning paths. Its full metallic bottom eliminates solder flux entrapment, and the integral locking tab serves as both mechanical anchor and thermal path to PCB copper.
The device is characterized at TL = 30°C with Zener voltage measured 20 seconds after DC current application. Dynamic impedance (ZZT) is derived using 60 Hz RMS AC current equal to 10% of IZT, per Micro Note 202 for voltage-current deviation analysis.
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 |
| Max Power Dissipation | 3.0 W at TAB 1 = 60°C - sets continuous thermal limit with PCB heatsinking |
| Dynamic Impedance (ZZT) | 300 Ω at IZT = 3.4 mA - determines regulation sensitivity to current variation |
| Reverse Leakage (IR) | ≤4000 µA at VR = 1 V - ensures low standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - enables direct thermal modeling from die to mounting pad |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in unshielded manufacturing environments |
| Package Outline | DO-216 (Powermite®) - surface-mount footprint compatible with EIA-481 tape-and-reel automation |
Pinout & Package
Powermite® package: molded surface-mount case with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; weight ≈0.016 g; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to copper pour for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for series connection in voltage reference chains |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability in high-humidity environments |
| Integral locking tab | Acts as mechanical anchor and primary thermal path-reduces junction temperature rise by up to 30°C vs. standard SOD-123 |
| ESD robustness | >16 kV HBM rating enables safe handling without ionized air or wrist straps in standard assembly lines |
| Automated insertion compatibility | DO-216 outline and EIA-481 tape-and-reel packaging support high-speed pick-and-place at ≥25,000 UPH |
Applications
| Industrial Power Supply Regulation | Telecom Line Card Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing 110 V reference in isolated auxiliary supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator and transient clamp on secondary-side feedback rail. Use Value: Maintains ±5% output accuracy across -40°C to +85°C ambient with 30°C/W thermal path to PCB ground plane. | Use Scenario: Protecting Ethernet PHY interface circuitry from induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp limiting line voltage to ≤110 V during lightning-induced transients. Use Value: Absorbs 3.0 W peak surge energy without degradation, validated per IEC 61000-4-5 Level 3. |
| Medical Equipment Reference Divider | Automotive Body Control Module (BCM) Reset Circuit |
Use Scenario: Generating precise 110 V intermediate reference for high-voltage ADC bias in diagnostic imaging subsystems. IC Role / Device Role / Timing Role: Precision Zener element in resistor-divider network feeding SAR ADC reference input. Use Value: Delivers <10 ppm/°C voltage drift over 0–70°C due to tight thermal coupling via TAB 1 to thermally stable FR4 substrate. | Use Scenario: Providing brown-out detection threshold for microcontroller reset logic in 24 V vehicle systems. IC Role / Device Role / Timing Role: Zener-based comparator input reference set to 110 V for monitoring boosted 24 V bus integrity. Use Value: Enables reliable reset assertion at 110 V ±5% with <5 µA leakage ensuring minimal battery drain in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF110A (ON Semiconductor) | 110 V, 1.0 W, SOD-123 package, 1000 Ω ZZT, no metallic tab | Limited to lower-power clamping; lacks integrated thermal path for sustained 3 W operation | Select when board space is constrained but thermal load ≤1 W; not suitable for continuous 3 W regulation |
| BZX84-C110 (Diodes Inc.) | 110 V, 300 mW, SOT-23, 500 Ω ZZT, ±5% tolerance, no thermal tab | Designed for signal-level referencing only; cannot sustain 3.0 W dissipation | Use only in low-current bias networks (<5 mA); requires external heatsinking for any power regulation role |
Compared with SMF110A and BZX84-C110, the 1PMT5950/TR7 uniquely supports 3.0 W continuous dissipation via its metallic TAB 1 thermal interface-enabling direct integration into high-reliability power rails without supplemental heatsinks or derating.
Availability
1PMT5950/TR7 is available at Aetrix Electronics and suitable for industrial power supply regulation, telecom line card overvoltage protection, and medical equipment reference divider applications requiring stable component supply and long-lifecycle availability.
Supply support for 1PMT5950/TR7 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 semiconductor manufacturer 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 for surface-mount power regulation and transient suppression where thermal performance, ESD robustness, and automated assembly compatibility are critical-targeting high-density power conversion and protection circuits.
FAQ
What is the Zener voltage tolerance for 1PMT5950/TR7?
The 1PMT5950/TR7 has a standard Zener voltage tolerance of ±5% at IZT = 3.4 mA and TL = 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D respectively, but the /TR7 variant uses the standard ±5% grade. Voltage measurement must be performed 20 seconds after DC current application per datasheet note.
How is thermal performance defined for 1PMT5950/TR7?
The 1PMT5950/TR7 specifies a thermal resistance of 30°C/W junction-to-TAB 1. This means that with TAB 1 soldered to a sufficient copper area, the junction temperature rises 30°C above the tab temperature for every watt dissipated. At full 3.0 W rating, TAB 1 must be held at ≤60°C to keep junction temperature within the -55°C to +150°C operating range.
Is 1PMT5950/TR7 compatible with lead-free reflow processes?
Yes, the 1PMT5950/TR7 is qualified for lead-free reflow per J-STD-020. Its molded Powermite® package withstands peak temperatures up to 260°C for 10 seconds. The full metallic bottom ensures uniform thermal expansion and eliminates voiding risks associated with flux entrapment-critical for repeatable lead-free assembly yield.
What does the "/TR7" suffix indicate for 1PMT5950/TR7?
The "/TR7" suffix denotes tape-and-reel packaging per EIA-481 standard, with 3,000 units per 7-inch reel. This format is optimized for high-speed SMT placement equipment and ensures consistent orientation (cathode TAB 1 leading) and mechanical stability during automated handling-distinct from bulk or ammo-pack variants.
Can 1PMT5950/TR7 be used in place of through-hole Zener diodes like 1N5950B?
While both share the same 110 V Zener voltage rating, the 1PMT5950/TR7 is not a drop-in replacement for the axial-lead 1N5950B due to its DO-216 surface-mount footprint and thermal reliance on TAB 1 soldering. It offers superior thermal performance in SMT designs but requires PCB layout adaptation-no through-hole socket compatibility exists.
1PMT5950/TR7 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/TR7 FAQ
1.How can I place an order for 1PMT5950/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5950/TR7 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/TR7 reliable?
The price and inventory of 1PMT5950/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5950/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5950/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5950/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5950/TR7?
1PMT5950/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5950/TR7 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/TR7?
For technical support, including 1PMT5950/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5950/TR7 requirements.
6.How does Aetrix verify that 1PMT5950/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5950/TR7 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/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5950/TR7?
All 1PMT5950/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5950/TR7, 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/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5950/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5950/TR7 Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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