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Microchip Technology 1PMT5950A/TR7
- Part No.:
- 1PMT5950A/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5950A/TR7.pdf
- Description:
- DIODE ZENER 110V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,928
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Product details
Overview
1PMT5950A/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 300 Ω dynamic impedance at 3.4 mA test current and <4000 µA reverse leakage at 83.6 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5950A/TR7 datasheet, 1PMT5950A/TR7 pinout, 1PMT5950A/TR7 application, or 1PMT5950A/TR7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical stability during reflow soldering.
The device exhibits low reverse leakage (<4000 µA at VR = 83.6 V) and a defined knee region (IZK = 0.25 mA, ZZK = 1500 Ω), enabling stable clamping in low-current protection circuits. Thermal resistance of 30°C/W from junction to TAB 1 supports reliable operation up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±5% at IZT = 3.4 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient suppression without external heatsink |
| Dynamic Impedance (ZZT) | 300 Ω at IZT = 3.4 mA - ensures minimal voltage shift under load variation |
| Reverse Leakage (IR) | <4000 µA at VR = 83.6 V - guarantees low standby power loss in always-on circuits |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - allows direct thermal path to PCB copper for passive cooling |
| ESD Rating | >16 kV per HBM - provides robust handling margin during board assembly and field operation |
| Junction Temp Range | –55°C to +150°C - supports deployment in automotive under-hood and industrial motor drive environments |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; DO-216 outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1; requires standard SMT pad layout per DO-216 mechanical drawing |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W capability in footprint smaller than DO-41 |
| Full metallic bottom | Eliminates solder flux entrapment risk and improves thermal transfer to PCB ground plane |
| Integral heat-sink locking tab | Provides mechanical anchoring and additional thermal conduction path via TAB 1 |
| ESD robustness | >16 kV HBM rating reduces need for upstream ESD protection in input-stage designs |
| Tight voltage tolerance option | Available in ±2% (suffix C) and ±1% (suffix D) for high-accuracy reference applications |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Clamping gate-drive supply rail against transients induced by IGBT switching noise. IC Role / Device Role / Timing Role: Zener diode providing fixed 110 V overvoltage clamp on isolated DC-DC output. Use Value: Prevents damage to optocoupler input stages and maintains isolation integrity under surge conditions. | Use Scenario: Regulating auxiliary bias voltage for line-card supervisors in 48 V telecom systems. IC Role / Device Role / Timing Role: Precision shunt reference stabilizing 110 V intermediate rail feeding PMIC controllers. Use Value: Maintains ±5% output accuracy across –40°C to +85°C ambient with no active regulation overhead. |
| Automotive Body Control Modules | Medical Diagnostic Power Rails |
Use Scenario: Protecting CAN transceiver VCC pins from load-dump spikes on 12 V battery-fed subsystems. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping at 110 V to absorb ISO 7637-2 Pulse 5a energy. Use Value: Meets AEC-Q101 stress requirements without derating, leveraging 150°C junction rating. | Use Scenario: Stabilizing high-voltage bias for photomultiplier tube (PMT) anode supplies in PET scanners. IC Role / Device Role / Timing Role: Low-noise, low-leakage shunt regulator setting 110 V reference for analog front-end gain stages. Use Value: Delivers <4000 µA IR at 83.6 V, minimizing dark-current drift in critical imaging circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | Same 110 V nominal, but DO-41 through-hole package; 5 W rating; higher ZZT (400 Ω); no metallic bottom or locking tab | Requires manual or wave soldering; unsuitable for high-density SMT layouts | Select when legacy through-hole assembly or higher power headroom is required |
| BZX84-C110 | SOT-23 package; 250 mW rating; ±5% tolerance; ZZT = 500 Ω; IR = 100 µA @ 88 V | Limited to low-power signal-level clamping; cannot handle >300 mA surge currents | Select only for space-constrained, low-energy bias networks-not for power-rail protection |
Compared with 1N5365B and BZX84-C110, the 1PMT5950A/TR7 uniquely combines 3.0 W SMT capability, 30°C/W thermal resistance, and ESD-hardened construction-making it the only choice for compact, high-reliability 110 V clamping in thermally demanding industrial and automotive environments.
Availability
1PMT5950A/TR7 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and medical diagnostic power rails requiring stable component supply and long-term obsolescence management.
Supply support for 1PMT5950A/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 U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-tolerant components for aerospace, defense, and industrial markets.
The Powermite® Zener series-including 1PMT5950A/TR7-was designed to deliver high-power, surface-mount voltage regulation in harsh-environment applications where thermal performance, ESD resilience, and automated manufacturability are critical.
FAQ
What is the zener voltage tolerance for 1PMT5950A/TR7?
The 1PMT5950A/TR7 has a standard zener voltage tolerance of ±5% at 110 V, measured at IZT = 3.4 mA with TAB 1 held at 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request. This tolerance directly impacts the accuracy of overvoltage clamping in safety-critical circuits using the 1PMT5950A/TR7.
How is thermal management handled for 1PMT5950A/TR7 in high-power operation?
The 1PMT5950A/TR7 relies on TAB 1 as its primary thermal path, with a specified junction-to-TAB thermal resistance of 30°C/W. To achieve its full 3.0 W rating, TAB 1 must be soldered to a minimum 100 mm² copper area on the PCB. The Powermite® package's full metallic bottom and locking tab enhance this conduction, making forced-air cooling unnecessary in most industrial applications using the 1PMT5950A/TR7.
Is 1PMT5950A/TR7 compatible with standard SMT reflow profiles?
Yes, the 1PMT5950A/TR7 is qualified for lead-free reflow per J-STD-020, with peak temperatures up to 260°C. Its molded Powermite® package and metallic bottom resist warping and flux entrapment. The device ships in EIA-481-compliant tape-and-reel format (3,000 pcs per 7-inch reel), ensuring seamless integration into high-speed pick-and-place lines handling the 1PMT5950A/TR7.
What is the maximum reverse leakage current for 1PMT5950A/TR7?
The maximum reverse leakage current for 1PMT5950A/TR7 is 4000 µA at VR = 83.6 V, measured at TL = 30°C. This value reflects worst-case leakage under rated clamping voltage and is critical for low-power standby circuits. At lower voltages (e.g., 50 V), leakage drops below 1 µA-confirming the 1PMT5950A/TR7's suitability for precision bias networks.
Does 1PMT5950A/TR7 meet automotive qualification standards?
The 1PMT5950A/TR7 is not AEC-Q101 qualified as a standalone part, but its construction-150°C max junction temperature, >16 kV HBM ESD rating, and robust Powermite® package-enables successful use in automotive body control modules after system-level validation. Customers applying the 1PMT5950A/TR7 in automotive contexts should perform board-level stress testing per ISO 16750 and ISO 7637-2.
1PMT5950A/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:
- ±10%
- 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
1PMT5950A/TR7 FAQ
1.How can I place an order for 1PMT5950A/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5950A/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 1PMT5950A/TR7 reliable?
The price and inventory of 1PMT5950A/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5950A/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5950A/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5950A/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5950A/TR7?
1PMT5950A/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5950A/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 1PMT5950A/TR7?
For technical support, including 1PMT5950A/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5950A/TR7 requirements.
6.How does Aetrix verify that 1PMT5950A/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5950A/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 1PMT5950A/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5950A/TR7?
All 1PMT5950A/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5950A/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 1PMT5950A/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5950A/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5950A/TR7 Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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