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Microchip Technology 1PMT5938BE3/TR13
- Part No.:
- 1PMT5938BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5938BE3/TR13.pdf
- Description:
- DIODE ZENER 36V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,925
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Product details
Overview
1PMT5938BE3/TR13 from Microsemi is a 36 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 10.4 mA test current (IZT), 38 Ω dynamic impedance (ZZT), and 1 µA max reverse leakage at 27.4 V. It serves as a precision voltage reference or overvoltage clamp in power supply regulation circuits.
For engineers reviewing the 1PMT5938BE3/TR13 datasheet, 1PMT5938BE3/TR13 pinout, 1PMT5938BE3/TR13 application, or 1PMT5938BE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB1), ESD rating (>16 kV HBM), low knee impedance (0.25 Ω), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a silicon planar Zener diode with sharp breakdown characteristics, designed for stable voltage regulation under DC bias conditions. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical retention during reflow soldering.
The 1PMT5938BE3/TR13 exhibits a nominal Zener voltage of 36 V measured at IZT = 10.4 mA with TAB temperature held at 30°C, and maintains tight voltage stability across operating temperatures from –55°C to +150°C. Reverse leakage remains ≤1 µA up to VR = 27.4 V, supporting low-power standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% - precise clamping threshold for 3.3 V–5 V logic rail protection or feedback sensing |
| Test Current (IZT) | 10.4 mA - standardized bias point ensuring specified VZ and ZZT performance |
| Dynamic Impedance (ZZT) | 38 Ω - low AC impedance ensures minimal voltage deviation under load transients |
| Max Reverse Leakage (IR) | 1 µA at 27.4 V - enables ultra-low quiescent current in battery-backed circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports high-energy transient suppression without external heatsinking |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal coupling to PCB copper for passive cooling |
| ESD Rating | >16 kV HBM - provides robust handling immunity during automated board assembly |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical connection point; 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 in voltage reference networks |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables high-density PCB layout while delivering 3.0 W power handling comparable to DO-41 through-hole devices |
| Integral heat-sink locking tab | Provides mechanical anchoring during reflow and reduces thermal resistance by direct metal-to-PCB contact |
| Full metallic bottom | Eliminates solder flux entrapment risk, improving long-term reliability and solder joint integrity |
| ESD rating >16 kV HBM | Permits safe handling and placement using standard SMT equipment without additional ESD mitigation |
| Compatible with EIA-481 tape & reel | Supports high-speed pick-and-place automation with 3,000 pieces per 7-inch reel (TR13 = 13-inch reel) |
Applications
| Power Supply Voltage Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters with optocoupler-based regulation loops. IC Role / Device Role / Timing Role: Zener diode providing fixed 36 V reference to TL431 or similar shunt regulator IC. Use Value: Maintains ±5% output voltage accuracy across line/load/temperature variations due to tight VZ tolerance and low ZZT. | Use Scenario: Protecting 24 V industrial I/O circuitry against surge events exceeding 30 V. IC Role / Device Role / Timing Role: Clamping transient energy into ground path via cathode-to-rail configuration. Use Value: Absorbs 3.0 W peak power without degradation, leveraging 30°C/W thermal resistance to limit junction rise. |
| Battery Management Threshold Detection | Programmable Logic Supply Clamp |
Use Scenario: Monitoring lithium-ion pack voltage to trigger charge termination at 36 V (10S configuration). IC Role / Device Role / Timing Role: Passive voltage threshold detector interfacing with microcontroller ADC input. Use Value: Delivers 1 µA max IR at 27.4 V, minimizing battery drain during sleep mode while ensuring accurate trip point. | Use Scenario: Preventing FPGA core rail overshoot during hot-swap insertion in telecom line cards. IC Role / Device Role / Timing Role: Fast-response clamp placed directly at power entry point before LDO input. Use Value: Responds within nanoseconds to transients, supported by low ZZK (0.25 Ω) and high ESD immunity (>16 kV). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245BS-7-F | 36 V ±5%, 200 mW SOD-123 package, 10 mA IZT, 17 Ω ZZT, no metallic tab | Limited to low-power signal-level clamping; unsuitable for >0.25 W continuous dissipation | Select when space-constrained layouts require sub-1 mm height and thermal load is <200 mW |
| Vishay PLZ36B-E3/54 | 36 V ±5%, 500 mW DO-219AC package, 10 mA IZT, 40 Ω ZZT, plastic body, no integrated heat sink | Requires external thermal relief; not qualified for automated insertion with locking-tab retention | Select when legacy DO-219AC footprint compatibility is required and power demand stays below 0.5 W |
Compared with MMBZ5245BS-7-F and PLZ36B-E3/54, the 1PMT5938BE3/TR13 uniquely delivers 3.0 W power handling in a surface-mount form with integrated thermal management-enabling direct replacement of through-hole Zeners without redesigning thermal pads or compromising surge robustness.
Availability
1PMT5938BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protection modules, battery management systems, and programmable logic power clamping requiring stable component supply and long-lifecycle support.
Supply support for 1PMT5938BE3/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 replace through-hole DO-41/DO-15 devices in high-power SMT applications-delivering 3.0 W dissipation, superior thermal performance, and automated assembly compatibility without sacrificing voltage precision.
FAQ
What is the Zener voltage tolerance for 1PMT5938BE3/TR13?
The 1PMT5938BE3/TR13 has a standard Zener voltage tolerance of ±5% at 36 V, measured at IZT = 10.4 mA with TAB temperature maintained at 30°C. Tighter tolerances (±2% and ±1%) are available under suffixes C and D respectively, but the E3/TR13 variant specifies ±5% per Microsemi datasheet MSC0995 Rev F.
How is thermal management implemented in the 1PMT5938BE3/TR13 package?
The 1PMT5938BE3/TR13 uses a Powermite® package with a full metallic bottom and integral locking tab that serves as both mechanical anchor and primary thermal path. Its 30°C/W junction-to-TAB1 thermal resistance requires direct soldering of TAB 1 to a copper thermal pad on the PCB to achieve the rated 3.0 W power dissipation at TAB = 60°C.
Is the 1PMT5938BE3/TR13 compatible with automated SMT assembly processes?
Yes, the 1PMT5938BE3/TR13 is fully compatible with automated SMT assembly. It is supplied in EIA-481 compliant tape-and-reel format (TR13 = 13-inch reel, 12,000 pieces), features a locking tab for secure placement during pick-and-place, and its full metallic bottom prevents solder flux entrapment-ensuring reliable reflow solder joints without post-process cleaning.
What is the maximum reverse leakage current for 1PMT5938BE3/TR13 and at what voltage is it specified?
The maximum reverse leakage current for 1PMT5938BE3/TR13 is 1 µA, specified at a reverse voltage (VR) of 27.4 V. This value is guaranteed across the operating temperature range of –55°C to +150°C and supports low-quiescent-current designs such as battery monitoring and standby regulation circuits.
Does the 1PMT5938BE3/TR13 meet any ESD immunity standards?
Yes, the 1PMT5938BE3/TR13 is rated for >16 kV electrostatic discharge immunity per the Human Body Model (HBM), as confirmed in the Microsemi MSC0995 datasheet. This level of ESD robustness allows safe handling and placement using standard SMT equipment without requiring additional ESD protection during manufacturing.
1PMT5938BE3/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):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 38 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 27.4 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
1PMT5938BE3/TR13 FAQ
1.How can I place an order for 1PMT5938BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5938BE3/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 1PMT5938BE3/TR13 reliable?
The price and inventory of 1PMT5938BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5938BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5938BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5938BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5938BE3/TR13?
1PMT5938BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5938BE3/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 1PMT5938BE3/TR13?
For technical support, including 1PMT5938BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5938BE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5938BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5938BE3/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 1PMT5938BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5938BE3/TR13?
All 1PMT5938BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5938BE3/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 1PMT5938BE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5938BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5938BE3/TR13 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MM5Z5V1ST1G
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