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Microchip Technology 1PMT5935AE3/TR13
- Part No.:
- 1PMT5935AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5935AE3/TR13.pdf
- Description:
- DIODE ZENER 27V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,847
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Product details
Overview
1PMT5935AE3/TR13 from Microsemi is a 27 V, ±5% tolerance Zener diode in Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 23 Ω dynamic impedance at 13.9 mA test current and 1 µA max reverse leakage at 20.6 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5935AE3/TR13 datasheet, 1PMT5935AE3/TR13 pinout, 1PMT5935AE3/TR13 application, or 1PMT5935AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance (700 Ω at 0.25 mA), and compatibility with EIA-481 tape-and-reel automated assembly.
Technical Context
This device operates as a two-terminal voltage-regulating diode with sharp Zener breakdown at 27 V nominal. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
Electrical behavior is defined at TL = 30°C with IZT = 13.9 mA; dynamic impedance (ZZT = 23 Ω) and knee impedance (ZZK = 700 Ω at IZK = 0.25 mA) are measured under specified AC superposition and DC bias conditions per Micro Note 202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 27 V ±5% - stable regulation point for 24 V system rail clamping |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports sustained operation without external heatsink in compact layouts |
| Dynamic Impedance | 23 Ω at IZT = 13.9 mA - ensures minimal output voltage variation under load transients |
| Knee Impedance | 700 Ω at IZK = 0.25 mA - maintains regulation down to low-current standby modes |
| Reverse Leakage | ≤1 µA at VR = 20.6 V - prevents excessive quiescent current in high-impedance sensing circuits |
| Thermal Resistance | 30°C/W junction-to-TAB - enables direct thermal path to PCB copper pour or metal chassis |
| ESD Rating | >16 kV HBM - withstands handling and board-level electrostatic events without parameter shift |
Pinout & Package
Powermite® surface-mount package (DO-216 compatible); cathode designated by TAB 1; molded plastic body with full metallic bottom and integral heat-sink locking tab; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to copper pour for rated 3.0 W dissipation |
| Lead 2 | Anode | Standard anode terminal; mounted opposite TAB 1; no thermal function |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability in high-humidity environments |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| EIA-481 tape-and-reel packaging | Enables seamless integration with standard SMT pick-and-place equipment (7″ reel: 3,000 pcs) |
| Low reverse leakage (≤1 µA) | Minimizes standby power loss in battery-backed or energy-sensitive applications |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring 24 V battery rail voltage in programmable logic controllers with analog-to-digital input conditioning. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and overvoltage protection clamp. Use Value: 27 V Zener voltage provides 12.5% headroom above nominal 24 V rail, ensuring reliable clamping during load dump transients. | Use Scenario: Voltage stabilization for microcontroller reset circuitry in door module ECUs exposed to automotive temperature cycling. IC Role / Device Role / Timing Role: Precision shunt regulator establishing clean 27 V reference for supervisor IC threshold setting. Use Value: 30°C/W thermal resistance allows stable operation up to +125°C ambient when mounted on 1 oz copper, meeting AEC-Q101 derating requirements. |
| Telecom Line Card Protection | Medical Infusion Pump Power Stage |
Use Scenario: Overvoltage suppression on -48 V DC distribution bus in central office line cards. IC Role / Device Role / Timing Role: Bidirectional transient clamp (with series diode) limiting surge-induced excursions beyond safe operating range. Use Value: >16 kV HBM ESD rating ensures robustness against field-service electrostatic discharge during hot-swap maintenance. | Use Scenario: Reference voltage source for isolated DC-DC converter feedback loop in Class II medical power supplies. IC Role / Device Role / Timing Role: Stable 27 V Zener providing error amplifier reference in secondary-side regulation circuit. Use Value: ±5% tolerance and low ZZT (23 Ω) maintain tight output regulation (<±1%) across 10–100% load range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5935BRLG | Same 27 V Zener voltage, but DO-41 through-hole package; higher thermal resistance (~65°C/W); no metallic bottom or locking tab | Requires manual or wave soldering; unsuitable for high-density SMT layouts or automated insertion | Select only if legacy through-hole assembly is mandated and thermal budget permits lower power derating |
| BZX84-C27LT1G | 27 V Zener in SOT-23; rated for 300 mW only; dynamic impedance 40 Ω at 5 mA; no ESD rating specified | Limited to low-power signal conditioning; cannot replace 1PMT5935AE3/TR13 in 3 W power-clamp roles | Use only in space-constrained signal-level references where 3 W capability is unnecessary |
Compared with 1N5935BRLG and BZX84-C27LT1G, the 1PMT5935AE3/TR13 uniquely delivers 3.0 W SMT power handling with integrated thermal management and industrial-grade ESD immunity-enabling direct replacement of larger packages without layout or thermal redesign.
Availability
1PMT5935AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply monitoring, automotive body control modules, telecom line card protection, and medical infusion pump power stages requiring stable component supply and long-term obsolescence mitigation.
Supply support for 1PMT5935AE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed to deliver high-power surface-mount voltage regulation with enhanced thermal performance and assembly robustness for mission-critical embedded systems.
FAQ
What is the Zener voltage tolerance for 1PMT5935AE3/TR13?
The 1PMT5935AE3/TR13 has a standard Zener voltage tolerance of ±5% at 27 V, measured at IZT = 13.9 mA with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the base part number 1PMT5935AE3/TR13 specifies ±5%. This tolerance ensures predictable clamping behavior in industrial power rail supervision circuits using the 1PMT5935AE3/TR13.
How is thermal performance characterized for 1PMT5935AE3/TR13?
The 1PMT5935AE3/TR13 features a junction-to-TAB thermal resistance of 30°C/W, enabling 3.0 W power dissipation when TAB 1 is maintained at ≤60°C. The metallic bottom and locking tab provide direct thermal conduction to PCB copper, making thermal design more predictable than standard SOD-123 or DO-214 packages. This specification is critical for maintaining stable Zener voltage in the 1PMT5935AE3/TR13 under continuous load conditions.
Is 1PMT5935AE3/TR13 compatible with automated SMT assembly?
Yes, the 1PMT5935AE3/TR13 is supplied in EIA-481-compliant tape-and-reel format (TR13 indicates 13-inch reel, 12,000 pieces), and its Powermite® package geometry is optimized for pick-and-place equipment. The locking tab ensures mechanical stability during placement, and the full metallic bottom eliminates solder flux entrapment-reducing post-reflow inspection failures. These features make the 1PMT5935AE3/TR13 suitable for high-volume automated manufacturing lines.
What is the maximum reverse leakage current for 1PMT5935AE3/TR13?
The 1PMT5935AE3/TR13 specifies a maximum reverse leakage current of 1 µA at VR = 20.6 V (77% of nominal Zener voltage), measured at TL = 30°C. This low leakage supports energy-efficient designs such as battery-powered sensors or always-on monitoring circuits where standby current must remain below 10 µA. The 1PMT5935AE3/TR13 maintains this spec across its full operating temperature range (-55°C to +150°C).
Does 1PMT5935AE3/TR13 meet any ESD standards?
Yes, the 1PMT5935AE3/TR13 is rated for >16 kV per Human Body Model (HBM), exceeding JEDEC JS-001 Class 3A requirements. This high ESD immunity is achieved via internal process design and package construction, ensuring robustness during handling, board assembly, and field service. Engineers can rely on the 1PMT5935AE3/TR13 in environments where electrostatic discharge poses a risk to system-level reliability.
1PMT5935AE3/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):
- 27 V
- Tolerance:
- ±10%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 23 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 20.6 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
1PMT5935AE3/TR13 FAQ
1.How can I place an order for 1PMT5935AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5935AE3/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 1PMT5935AE3/TR13 reliable?
The price and inventory of 1PMT5935AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5935AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5935AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5935AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5935AE3/TR13?
1PMT5935AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5935AE3/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 1PMT5935AE3/TR13?
For technical support, including 1PMT5935AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5935AE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5935AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5935AE3/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 1PMT5935AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5935AE3/TR13?
All 1PMT5935AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5935AE3/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 1PMT5935AE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5935AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5935AE3/TR13 Tags
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