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Microchip Technology 1PMT5956CE3/TR7
- Part No.:
- 1PMT5956CE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5956CE3/TR7.pdf
- Description:
- DIODE ZENER 200V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,066
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Product details
Overview
1PMT5956CE3/TR7 from Microsemi is a 200 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 1.9 mA test current (IZT), 1200 Ω dynamic impedance (ZZT), and 11.6 mA maximum Zener current (IZM). It serves as a precision voltage reference or overvoltage clamp in high-voltage DC-DC converters and industrial power supplies.
For engineers reviewing the 1PMT5956CE3/TR7 datasheet, 1PMT5956CE3/TR7 pinout, 1PMT5956CE3/TR7 application, or 1PMT5956CE3/TR7 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB1), ESD rating (>16 kV HBM), reverse leakage (<8000 µA at VR = 1 V), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This device operates as a single-junction silicon Zener diode optimized for stable voltage regulation under steady-state DC conditions. Its 200 V nominal Zener voltage is specified at 1.9 mA test current with ±5% tolerance, and it maintains low reverse leakage (<8000 µA at 1 V) and tight knee characteristics (IZK = 0.25 mA, ZZK = 1200 Ω).
The Powermite® package enables surface-mount integration with full metallic bottom for flux-free soldering and integral locking tab acting as primary heat sink. Thermal resistance is 30°C/W from junction to TAB 1, supporting 3.0 W dissipation when TAB 1 is held at ≤60°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±5% at IZT = 1.9 mA - defines clamping/reference level in high-voltage regulation circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling with thermal derating above 60°C |
| Dynamic Impedance (ZZT) | 1200 Ω at IZT - determines voltage deviation under small-signal AC load variations |
| Knee Current (IZK) | 0.25 mA - minimum current needed to enter regulated region; critical for low-power bias applications |
| Reverse Leakage (IR) | <8000 µA at VR = 1 V - ensures minimal standby current in high-impedance sensing or hold-up circuits |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies thermal path efficiency; requires PCB copper area on TAB 1 for safe 3 W operation |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in automated SMT lines without special ESD controls |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; mechanical outline conforms to DO-216 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sink terminal and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode connection; electrically isolated from TAB 1; used for series connection in voltage-reference networks |
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 or DO-15 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Integral heat-sink locking tab | Provides direct thermal conduction path from junction to PCB; reduces thermal resistance to 30°C/W |
| ESD robustness | >16 kV HBM rating allows safe handling in standard SMT environments without additional protection circuitry |
Applications
| Industrial Power Supply Clamp | High-Voltage DC-DC Reference |
|---|---|
Use Scenario: Clamping transient overvoltage spikes on 170–250 VDC bus rails in motor drives and PLC power modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to limit voltage excursions and protect downstream MOSFETs and controllers. Use Value: 200 V Zener voltage and 3.0 W rating allow sustained clamping of repetitive 200–220 V transients without thermal runaway. | Use Scenario: Providing stable 200 V reference for feedback loops in isolated flyback or forward converters powering industrial sensors. IC Role / Device Role / Timing Role: Precision voltage reference element in optocoupler-coupled feedback network. Use Value: ±5% tolerance and low dynamic impedance (1200 Ω) ensure consistent regulation across line/load variations and temperature. |
| Automated Test Equipment (ATE) Protection | Telecom Line Interface Clamp |
Use Scenario: Protecting high-impedance analog input channels in ATE systems exposed to accidental 200 V misconnections. IC Role / Device Role / Timing Role: Standby-mode overvoltage protector shunting fault current away from sensitive ADC front-ends. Use Value: Low reverse leakage (<8000 µA at 1 V) preserves measurement accuracy during normal operation; >16 kV HBM withstands ESD events during probe handling. | Use Scenario: Surge suppression on -48 V telecom battery backup lines subject to lightning-induced surges up to 200 V. IC Role / Device Role / Timing Role: Primary clamping device in hybrid surge protection circuit with gas discharge tube and series impedance. Use Value: Fast response in Zener breakdown and 3.0 W rating enable absorption of 10/1000 µs surge waveforms without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5388B | 200 V, 5 W, DO-15 package, 40°C/W junction-to-lead thermal resistance | Higher power but larger through-hole footprint; less suitable for dense SMT layouts | Select when higher power margin is required and board space permits through-hole mounting |
| SMBJ200A | 200 V standoff, 600 W peak pulse power, TVS diode, unidirectional, 1.5 kW peak pulse rating | Designed for transient suppression, not precision regulation; higher clamping voltage under surge | Select only for surge-only protection; not interchangeable for voltage reference use due to lack of tight VZ tolerance |
Compared with 1PMT5956CE3/TR7, 1N5388B offers +2 W power headroom but requires manual or wave-solder assembly and has inferior thermal performance in SMT; SMBJ200A provides superior surge handling but lacks the stable DC regulation and ±5% VZ tolerance essential for reference applications.
Availability
1PMT5956CE3/TR7 is available at Aetrix Electronics and suitable for industrial power supply clamp, high-voltage DC-DC reference, and automated test equipment protection requiring stable component supply and full traceability.
Supply support for 1PMT5956CE3/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 delivers high-power surface-mount voltage regulation in compact packages, targeting applications where thermal efficiency, automated assembly compatibility, and ruggedness are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5956CE3/TR7?
The 1PMT5956CE3/TR7 has a standard Zener voltage tolerance of ±5% at 200 V nominal, measured at 1.9 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the CE3/TR7 variant uses the standard ±5% grade.
Can 1PMT5956CE3/TR7 be used in place of a through-hole Zener like 1N5388B?
No - while both are rated for 200 V Zener voltage, 1PMT5956CE3/TR7 is a surface-mount Powermite® device with 3.0 W dissipation and 30°C/W thermal resistance, whereas 1N5388B is a through-hole DO-15 part rated for 5 W and 40°C/W. Substitution requires PCB redesign and thermal validation; they are not drop-in replacements.
What does the 'E3/TR7' suffix indicate in 1PMT5956CE3/TR7?
The 'E3' denotes tape-and-reel packaging per EIA-481 standard, and 'TR7' specifies a 7-inch reel containing 3,000 units. This packaging format ensures compatibility with high-speed pick-and-place equipment and supports automated SMT assembly without manual handling.
How is thermal management implemented for 1PMT5956CE3/TR7?
Thermal management for 1PMT5956CE3/TR7 relies on soldering TAB 1 (cathode) to a dedicated PCB copper pour acting as a heatsink. With a junction-to-TAB1 thermal resistance of 30°C/W, maintaining TAB 1 at ≤60°C enables full 3.0 W dissipation; exceeding this temperature requires linear derating per Microsemi's thermal curves.
Is 1PMT5956CE3/TR7 suitable for precision voltage reference applications?
Yes - the 1PMT5956CE3/TR7 provides stable 200 V regulation with ±5% tolerance, low dynamic impedance (1200 Ω), and minimal knee current (0.25 mA), making it suitable for non-critical reference roles in high-voltage feedback networks. For tighter stability, consider adding external temperature compensation or using it in conjunction with op-amp buffers.
1PMT5956CE3/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):
- 200 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 1200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 152 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
1PMT5956CE3/TR7 FAQ
1.How can I place an order for 1PMT5956CE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5956CE3/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 1PMT5956CE3/TR7 reliable?
The price and inventory of 1PMT5956CE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5956CE3/TR7 is usually 5 days.
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Once your 1PMT5956CE3/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 1PMT5956CE3/TR7?
For technical support, including 1PMT5956CE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5956CE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5956CE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5956CE3/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 1PMT5956CE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5956CE3/TR7?
All 1PMT5956CE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5956CE3/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 1PMT5956CE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5956CE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5956CE3/TR7 Tags
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