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Microchip Technology 1PMT5950C/TR7
- Part No.:
- 1PMT5950C/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5950C/TR7.pdf
- Description:
- DIODE ZENER 110V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,048
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Product details
Overview
1PMT5950C/TR7 from Microsemi is a 110 V, ±2% tolerance Zener diode in Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 30°C/W thermal resistance junction-to-tab and 16 kV HBM ESD rating - used for precision voltage regulation and overvoltage protection in industrial power supplies.
For engineers reviewing the 1PMT5950C/TR7 datasheet, 1PMT5950C/TR7 pinout, 1PMT5950C/TR7 application, or 1PMT5950C/TR7 equivalent, key selection criteria include zener voltage tolerance (±2%), dynamic impedance (300 Ω @ 3.4 mA), knee current (0.25 mA), reverse leakage (≤4000 µA @ 83.6 V), and thermal performance in high-density SMT layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its Powermite® package features a full metallic bottom and integral heat sink locking tab, enabling efficient thermal conduction from junction to PCB via TAB 1 - critical for sustained 3.0 W operation without derating in compact designs.
The device exhibits low reverse leakage (≤4000 µA at VR = 83.6 V) and tight dynamic impedance (300 Ω at IZT = 3.4 mA), supporting stable regulation in feedback loops of switch-mode power supplies and voltage clamp circuits where precision and transient response matter.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 110 V ±2% (tight tolerance version denoted by 'C' suffix; ensures stable reference in precision regulation) |
| Test Current | 3.4 mA (IZT; defines operating point for VZ specification and impedance measurement) |
| Dynamic Impedance | 300 Ω @ 3.4 mA (low Zzt enables minimal voltage shift under load variation) |
| Knee Current | 0.25 mA (IZK; onset of reliable regulation; supports low-power standby clamping) |
| Max Reverse Leakage | 4000 µA @ 83.6 V (IR max at VR = 0.76×VZ; confirms low off-state power loss) |
| Thermal Resistance | 30°C/W junction-to-TAB 1 (enables direct thermal path to PCB copper; critical for 3.0 W continuous dissipation) |
| ESD Rating | >16 kV HBM (supports robust handling in automated SMT lines without additional protection) |
Pinout & Package
Powermite® surface-mount package (DO-216 compatible footprint); molded plastic body with full metallic bottom and integral heat sink locking tab; cathode designated by TAB 1; mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to large copper area for heat dissipation and circuit return |
| Lead 2 | Anode | Signal-side connection; routed with controlled trace width to minimize parasitic inductance in clamp paths |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-41 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint reliability and thermal interface consistency |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB, reducing thermal resistance by ~40% vs. standard SOD-123 |
| ±2% Zener voltage tolerance | Reduces need for post-production trimming in voltage reference circuits; supports tighter system-level accuracy budgets |
| 16 kV HBM ESD rating | Allows direct integration into unshielded industrial control inputs without external TVS or RC filtering |
Applications
| Industrial Power Supply Regulation | Overvoltage Clamp in Motor Drives |
|---|---|
Use Scenario: Primary-side voltage reference in isolated flyback controllers for 24–48 V DC industrial supplies. IC Role / Device Role / Timing Role: Zener diode provides stable 110 V reference for TL431 or optocoupler feedback biasing. Use Value: ±2% tolerance ensures consistent loop gain across production batches; 30°C/W thermal resistance maintains regulation stability under 70°C ambient. | Use Scenario: DC bus overvoltage protection in 3-phase inverter gate driver stages. IC Role / Device Role / Timing Role: Clamps transient spikes above 110 V to protect IGBT gate drivers and isolated level shifters. Use Value: 3.0 W rating absorbs repetitive 100 ns–1 µs transients without degradation; metallic tab ensures repeatable clamping energy dissipation. |
| Programmable Logic Controller Input Protection | Fieldbus Interface Voltage Limiting |
Use Scenario: 24 V digital input conditioning with surge immunity per IEC 61000-4-5 Level 3. IC Role / Device Role / Timing Role: Zener diode shunts induced surges before reaching downstream optocoupler or MCU GPIO. Use Value: 16 kV HBM rating aligns with ESD robustness requirements; low knee current (0.25 mA) enables fast turn-on during fast-rising transients. | Use Scenario: RS-485/RS-422 common-mode voltage limiting on PROFIBUS DP segments. IC Role / Device Role / Timing Role: Limits differential receiver input common-mode swing to prevent latch-up in transceivers. Use Value: Tight 110 V ±2% tolerance ensures predictable clamping threshold across temperature; DO-216-compatible footprint fits dense fieldbus module layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ110CA | TVS diode (bidirectional, 110 V standoff), 1500 W peak pulse power, higher capacitance (~100 pF) | Designed for transient suppression (EFT/surge), not precision DC regulation | Select when protecting against lightning-induced surges; avoid for reference or biasing roles due to leakage and tolerance drift |
| BZX84-C110 | SOT-23 Zener, 110 V ±5%, 300 mW, 500 Ω Zzt, no metallic thermal pad | Limited to low-power signal-level clamping; unsuitable for >100 mA continuous current | Choose only for space-constrained logic-level interfaces; cannot replace 1PMT5950C/TR7 in 3.0 W power regulation |
Compared with SMCJ110CA and BZX84-C110, the 1PMT5950C/TR7 uniquely combines ±2% DC voltage tolerance, 3.0 W continuous dissipation, and low-thermal-resistance metal-tab packaging - making it suitable for precision, high-power Zener applications where regulation stability and thermal management are co-critical.
Availability
1PMT5950C/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, motor drive protection circuits, PLC input conditioning, and fieldbus interface voltage limiting requiring stable component supply and long-term manufacturability.
Supply support for 1PMT5950C/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-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was engineered for high-power surface-mount voltage regulation and clamping in space-constrained, thermally demanding environments - emphasizing thermal efficiency, process-controlled tolerance, and assembly robustness.
FAQ
What is the Zener voltage tolerance of the 1PMT5950C/TR7?
The 'C' suffix in 1PMT5950C/TR7 denotes ±2% Zener voltage tolerance at 3.4 mA test current and 30°C case temperature. This tighter tolerance than standard ±5% versions (e.g., 1PMT5950B/TR7) improves accuracy in voltage reference and feedback applications without requiring external trimming.
How is thermal management handled in the 1PMT5950C/TR7 package?
The 1PMT5950C/TR7 uses a Powermite® package with a full metallic bottom and integral heat sink locking tab (TAB 1). With 30°C/W junction-to-tab thermal resistance, effective heat transfer requires soldering TAB 1 to a minimum 100 mm² copper pour. This design enables full 3.0 W DC power dissipation at 60°C tab temperature.
Is the 1PMT5950C/TR7 suitable for surge protection applications?
The 1PMT5950C/TR7 is optimized for precision DC voltage regulation and steady-state clamping, not high-energy transient suppression. While it can absorb limited repetitive transients, its 3.0 W continuous rating and lack of specified peak pulse power make dedicated TVS diodes like SMAJ110A more appropriate for IEC 61000-4-5 surge events.
What does the '/TR7' suffix indicate in 1PMT5950C/TR7?
The '/TR7' suffix indicates tape-and-reel packaging per EIA-481 standard, with 3,000 units per 7-inch reel. This format supports automated SMT placement and ensures consistent orientation (cathode marked by TAB 1) during pick-and-place operations.
Can the 1PMT5950C/TR7 replace older through-hole Zeners like 1N5265B?
Yes, the 1PMT5950C/TR7 provides equivalent 110 V Zener functionality in surface-mount form but with superior thermal performance (30°C/W vs. ~60°C/W for 1N5265B) and tighter tolerance (±2% vs. ±5%). However, PCB layout must accommodate the Powermite® DO-216 footprint and thermal pad - not a drop-in replacement without board revision.
1PMT5950C/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:
- ±2%
- 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
1PMT5950C/TR7 FAQ
1.How can I place an order for 1PMT5950C/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5950C/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 1PMT5950C/TR7 reliable?
The price and inventory of 1PMT5950C/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5950C/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5950C/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5950C/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5950C/TR7?
1PMT5950C/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5950C/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 1PMT5950C/TR7?
For technical support, including 1PMT5950C/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5950C/TR7 requirements.
6.How does Aetrix verify that 1PMT5950C/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5950C/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 1PMT5950C/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5950C/TR7?
All 1PMT5950C/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5950C/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 1PMT5950C/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5950C/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5950C/TR7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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