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Microchip Technology 1PMT5956BE3/TR7
- Part No.:
- 1PMT5956BE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5956BE3/TR7.pdf
- Description:
- DIODE ZENER 200V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,398
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Product details
Overview
1PMT5956BE3/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 converter feedback loops and industrial power supply regulation.
For engineers reviewing the 1PMT5956BE3/TR7 datasheet, 1PMT5956BE3/TR7 pinout, 1PMT5956BE3/TR7 application, or 1PMT5956BE3/TR7 equivalent, key selection criteria include its 200 V nominal Zener voltage, 3.0 W thermal capability with metallic tab heat sinking, DO-216 mechanical outline, ESD rating >16 kV HBM, and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This device operates as a two-terminal voltage-regulating diode with cathode designated by TAB 1. Its Zener voltage is specified at IZT = 1.9 mA with junction-to-tab thermal resistance of 30°C/W, enabling stable regulation under pulsed or continuous DC bias when mounted to a thermally conductive PCB pad.
The Powermite® package integrates a full metallic bottom and locking tab that functions as an integral heat sink, eliminating solder flux entrapment and improving thermal transfer-critical for maintaining VZ stability across -55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±5% at IZT = 1.9 mA - defines clamping threshold in overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling with proper thermal pad design |
| Dynamic Impedance (ZZT) | 1200 Ω at 60 Hz, 10% IZT - indicates voltage regulation stiffness under small-signal AC perturbations |
| Knee Impedance (ZZK) | 8000 Ω at IZK = 0.25 mA - reflects poor regulation near turn-on; requires minimum bias current for stable operation |
| Reverse Leakage (IR) | ≤1 µA at VR = 152 V - ensures low standby current in high-impedance reference paths |
| ESD Rating | >16 kV per Human Body Model - supports robust handling in automated SMT lines without special ESD controls |
| Thermal Resistance | 30°C/W junction-to-TAB1 - enables direct thermal path to PCB copper; requires ≥10 mm² exposed pad for full 3 W rating |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package with full metallic bottom and integral heat-sink locking tab; cathode identified by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal; must be soldered to ≥10 mm² copper area for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode connection; no thermal function; routed on signal layer only |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, preventing post-assembly corrosion or voiding |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB |
| ESD robustness | >16 kV HBM rating enables safe handling in standard SMT environments without added protection circuitry |
| Automated insertion compatibility | DO-216 footprint and tape-and-reel packaging (EIA-481) support high-speed pick-and-place placement |
Applications
| Industrial Power Supply Regulation | High-Voltage DC-DC Converter Feedback |
|---|---|
Use Scenario: Stabilizing output voltage in 400–800 V industrial SMPS using optocoupler-coupled feedback. IC Role / Device Role / Timing Role: Zener reference providing precise 200 V threshold for TL431-like shunt regulator bias network. Use Value: Maintains ±5% output regulation over line/load/temperature with minimal external components due to tight VZ tolerance and low IR. | Use Scenario: Clamping gate drive voltage in SiC MOSFET half-bridge drivers operating at 600–1200 V bus. IC Role / Device Role / Timing Role: Overvoltage protection element limiting gate-source voltage to safe levels during switching transients. Use Value: Withstands 3.0 W surge energy and provides fast response (<10 ns) to transient overvoltages without degradation. |
| Telecom Line Card Protection | Test Equipment High-Voltage Reference |
Use Scenario: Surge suppression on -48 V DC distribution rails in central office line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device in multi-stage protection circuit, placed upstream of TVS diodes. Use Value: Handles repetitive 3.0 W pulses with stable VZ drift <0.01%/°C, ensuring long-term reliability in uncooled enclosures. | Use Scenario: Precision voltage reference in portable HV calibration sources requiring traceable 200 V output. IC Role / Device Role / Timing Role: Stable Zener element in compensated reference divider network with low TC and minimal self-heating error. Use Value: Delivers 200 V ±5% with 1.9 mA bias and <1 µA leakage, enabling <0.1% absolute accuracy in battery-powered calibrators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ200A | TVS diode, 200 V standoff, 3.0 kW peak pulse power, bidirectional, higher clamping voltage (224 V) | Designed for transient suppression, not precision regulation; unsuitable for feedback references | Select only for surge-only protection where regulation accuracy is irrelevant |
| 1N5388B | Through-hole 200 V Zener, 5 W rating, DO-201 package, 35°C/W junction-to-lead thermal resistance | Larger footprint, lower thermal efficiency, incompatible with SMT automation | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMCJ200A and 1N5388B, the 1PMT5956BE3/TR7 uniquely combines SMT manufacturability, 3.0 W continuous regulation capability, and ±5% VZ tolerance in a thermally optimized Powermite® package-making it the sole option for automated production of compact, high-voltage regulated power supplies.
Availability
1PMT5956BE3/TR7 is available at Aetrix Electronics and suitable for industrial power supply regulation, high-voltage DC-DC converter feedback, and telecom line card protection requiring stable component supply, consistent tape-and-reel packaging, and long-lifecycle availability.
Supply support for 1PMT5956BE3/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 RF solutions for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was engineered for high-power density surface-mount voltage regulation in space-constrained, thermally demanding power systems-emphasizing thermal integrity, ESD resilience, and automated assembly readiness.
FAQ
What is the Zener voltage tolerance for 1PMT5956BE3/TR7?
The 1PMT5956BE3/TR7 has a standard Zener voltage tolerance of ±5% at 200 V nominal, measured at IZT = 1.9 mA with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the base part number 1PMT5956BE3/TR7 specifies ±5%.
Can 1PMT5956BE3/TR7 be used in place of a through-hole Zener like 1N5388B?
No-while both are 200 V Zeners, the 1PMT5956BE3/TR7 uses a DO-216 surface-mount Powermite® package with integrated heat-sink tab and 30°C/W thermal resistance, whereas 1N5388B is DO-201 axial with 35°C/W. Substitution requires PCB redesign and thermal validation; 1PMT5956BE3/TR7 is not a drop-in replacement.
What is the maximum continuous power dissipation for 1PMT5956BE3/TR7?
The 1PMT5956BE3/TR7 is rated for 3.0 W DC power dissipation when TAB 1 is maintained at 60°C. This requires a minimum 10 mm² copper pad connected to TAB 1. Derating applies above 60°C: at 100°C TAB, max power drops to ~1.8 W per the 30°C/W thermal resistance.
Does 1PMT5956BE3/TR7 have polarity marking, and how is cathode identified?
Yes-the cathode of 1PMT5956BE3/TR7 is designated by TAB 1, which is the larger metallic terminal. The device uses a DO-216 outline with TAB 1 as cathode and Lead 2 as anode. No band or dot marking is present; orientation is defined solely by tab position per Microsemi mechanical drawings.
Is 1PMT5956BE3/TR7 suitable for high-frequency transient suppression?
No-1PMT5956BE3/TR7 is a precision Zener diode optimized for DC/low-frequency voltage regulation and clamping, not fast transients. Its 1200 Ω dynamic impedance and 1.9 mA IZT indicate slow response; for ESD/surge suppression, use dedicated TVS devices like SMAJ200A with sub-nanosecond response and defined clamping curves.
1PMT5956BE3/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:
- ±5%
- 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
1PMT5956BE3/TR7 FAQ
1.How can I place an order for 1PMT5956BE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5956BE3/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 1PMT5956BE3/TR7 reliable?
The price and inventory of 1PMT5956BE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5956BE3/TR7 is usually 5 days.
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Once your 1PMT5956BE3/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 1PMT5956BE3/TR7?
For technical support, including 1PMT5956BE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5956BE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5956BE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5956BE3/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 1PMT5956BE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5956BE3/TR7?
All 1PMT5956BE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5956BE3/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 1PMT5956BE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5956BE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5956BE3/TR7 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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