Microchip Technology 1PMT5953BE3/TR13
- Part No.:
- 1PMT5953BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5953BE3/TR13.pdf
- Description:
- DIODE ZENER 150V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:4,536
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Product details
Overview
1PMT5953BE3/TR13 from Microsemi is a 150 V, ±5% tolerance Zener diode in Powermite® surface-mount package delivering 3.0 W power dissipation at TAB 1 temperature of 60°C, with 2.5 mA test current, 600 Ω dynamic impedance, and 114 mA maximum Zener current-used for precision voltage regulation in industrial power supplies and overvoltage protection circuits.
For engineers reviewing the 1PMT5953BE3/TR13 datasheet, 1PMT5953BE3/TR13 pinout, 1PMT5953BE3/TR13 application, or 1PMT5953BE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB1), ESD rating (>16 kV HBM), reverse leakage (<6000 µA at 1 V), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This Zener diode operates as a two-terminal voltage reference device with cathode designated by TAB 1, requiring no external biasing circuitry. Its full metallic bottom and integral heat sink locking tab enable direct thermal conduction to PCB copper, supporting stable regulation under sustained 3.0 W dissipation when mounted on adequate thermal pads.
The device exhibits tight voltage regulation at 150 V nominal with 2.5 mA test current (IZT), 600 Ω dynamic impedance (ZZT) at IZT, and low knee impedance (ZZK = 0.25 Ω) at 1 mA, enabling predictable clamping behavior across load transients in DC power rail protection applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 150 V ±5% - precise clamping threshold for 120–160 V system rails |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - requires thermal pad design per DO-216 mounting dimensions |
| Test Current | 2.5 mA - defines nominal VZ measurement point; operation outside this range shifts voltage per Micro Note 202 |
| Dynamic Impedance | 600 Ω at IZT - limits voltage deviation under small-signal AC ripple superimposed on DC bias |
| Thermal Resistance | 30°C/W junction-to-TAB1 - dictates minimum copper area needed to maintain Tj ≤ 150°C |
| ESD Rating | >16 kV HBM - eliminates need for external ESD protection in handling and board-level integration |
| Reverse Leakage | <6000 µA at 1 V - ensures minimal standby current in high-impedance sensing or bias networks |
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 path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for series connection into regulated node |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, ensuring void-free thermal interface and long-term reliability |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| ESD robustness | >16 kV Human Body Model rating enables safe handling without special ESD controls in standard assembly lines |
| Tape & Reel packaging | EIA-481 compliant 7-inch reel (3,000 pcs) supports high-speed pick-and-place placement without manual intervention |
Applications
| Industrial Power Supply Regulation | Overvoltage Protection for Telecom DC Rails |
|---|---|
Use Scenario: Stabilizing reference voltage in isolated flyback feedback loops operating from 100–200 VDC input. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing precise 150 V clamp to optocoupler bias network. Use Value: Maintains ±5% output regulation across line/load variations while dissipating up to 3.0 W without heatsink. | Use Scenario: Protecting 48 V telecom distribution systems against lightning-induced surges exceeding 100 V. IC Role / Device Role / Timing Role: Standby clamping element triggered only during transient overvoltage events. Use Value: Limits peak rail voltage to 150 V with <6000 µA leakage at 1 V, minimizing standby power loss. |
| Automotive Battery Monitoring Circuits | Programmable Voltage Threshold Detectors |
Use Scenario: Monitoring 12 V battery-derived 150 V boost converter outputs in ADAS domain controllers. IC Role / Device Role / Timing Role: Reference element in comparator-based overvoltage latch circuit. Use Value: Provides stable 150 V threshold with 30°C/W thermal resistance, enabling accurate trip point over -40°C to +125°C ambient. | Use Scenario: Setting adjustable trip points in programmable power sequencers using resistor-divider biasing. IC Role / Device Role / Timing Role: Precision Zener element defining upper voltage limit in feedback divider network. Use Value: Delivers 150 V ±5% tolerance with 600 Ω dynamic impedance, reducing sensitivity to current variation in divider design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ150A | TVS diode (not Zener); 150 V standoff, 200 W peak pulse power, higher clamping voltage (193 V) | Designed for transient surge suppression-not precision DC regulation | Select only for surge-only protection; not suitable for continuous regulation or reference use |
| 1N5375B | 150 V Zener in DO-201AD package; 5 W rating but larger footprint, 60°C/W thermal resistance | Same voltage grade but lacks Powermite® thermal efficiency and automated assembly features | Choose when higher power margin is required and board space allows larger package |
Compared with SMCJ150A and 1N5375B, the 1PMT5953BE3/TR13 uniquely combines 150 V precision regulation, 3.0 W continuous dissipation in ultra-compact DO-216, and EIA-481 tape-and-reel readiness-making it optimal for space-constrained, thermally demanding, and high-volume production environments.
Availability
1PMT5953BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, telecom overvoltage protection, and automotive battery monitoring applications requiring stable component supply, consistent parametric performance, and EIA-481 tape-and-reel compatibility.
Supply support for 1PMT5953BE3/TR13 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 to deliver high-power surface-mount voltage regulation in miniature packages-targeting automated manufacturing, thermal efficiency, and ruggedized field operation in harsh environments.
FAQ
What is the Zener voltage tolerance for 1PMT5953BE3/TR13?
The 1PMT5953BE3/TR13 has a standard Zener voltage tolerance of ±5% at 150 V nominal, measured at 2.5 mA test current and TAB 1 temperature of 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the E3/TR13 variant specifies ±5%. This tolerance directly impacts regulation accuracy in feedback and protection circuits.
How is thermal management handled in the 1PMT5953BE3/TR13 package?
The 1PMT5953BE3/TR13 uses a Powermite® package with a full metallic bottom and integral heat sink locking tab (TAB 1) that serves as both cathode and primary thermal path. Its 30°C/W junction-to-TAB1 thermal resistance requires direct soldering to a dedicated PCB thermal pad to achieve the rated 3.0 W dissipation at TAB 1 = 60°C.
Is 1PMT5953BE3/TR13 compatible with automated SMT assembly processes?
Yes, the 1PMT5953BE3/TR13 is fully compatible with automated insertion equipment and standard SMT reflow processes. It ships in EIA-481 compliant tape-and-reel format (7-inch reel, 3,000 pieces), and its Powermite® package geometry-including flat metallic bottom and locking tab-ensures reliable pick-and-place and void-free solder joint formation.
What is the maximum reverse leakage current for 1PMT5953BE3/TR13?
The maximum reverse leakage current for 1PMT5953BE3/TR13 is 6000 µA at 1 V reverse voltage and TL = 30°C. This value is specified in the Electrical Characteristics table and reflects worst-case leakage under low-voltage bias conditions-critical for low-power standby circuits where quiescent current must be minimized.
Does 1PMT5953BE3/TR13 have ESD protection built-in?
Yes, the 1PMT5953BE3/TR13 has an ESD rating exceeding 16 kV per the Human Body Model (HBM), as stated in the FEATURES section. This intrinsic robustness eliminates the need for additional ESD protection components during handling or board-level integration, simplifying design and improving manufacturing yield.
1PMT5953BE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 150 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 600 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 114 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
1PMT5953BE3/TR13 FAQ
1.How can I place an order for 1PMT5953BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5953BE3/TR13 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 1PMT5953BE3/TR13 reliable?
The price and inventory of 1PMT5953BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5953BE3/TR13 is usually 5 days.
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Once your 1PMT5953BE3/TR13 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 1PMT5953BE3/TR13?
For technical support, including 1PMT5953BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5953BE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5953BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5953BE3/TR13 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 1PMT5953BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5953BE3/TR13?
All 1PMT5953BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5953BE3/TR13, 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 1PMT5953BE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5953BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5953BE3/TR13 Tags

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