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Microchip Technology 1PMT5935B/TR13
- Part No.:
- 1PMT5935B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5935B/TR13.pdf
- Description:
- DIODE ZENER 27V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,452
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Product details
Overview
1PMT5935B/TR13 from Microsemi is a 27 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 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 1PMT5935B/TR13 datasheet, 1PMT5935B/TR13 pinout, 1PMT5935B/TR13 application, or 1PMT5935B/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 Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical stability during reflow soldering.
The device exhibits low reverse leakage (≤1 µA at VR = 20.6 V), 30°C/W thermal resistance from junction to TAB 1, and maintains stable Zener voltage under transient thermal loads due to its molded construction and flux-trap-free design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% at IZT = 13.9 mA - defines regulated output voltage under nominal bias |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous DC power handling with heatsink tab |
| Dynamic Impedance (ZZT) | 23 Ω at IZT = 13.9 mA - determines voltage regulation sensitivity to current variation |
| Reverse Leakage (IR) | ≤1 µA at VR = 20.6 V - ensures minimal standby current in clamping or reference circuits |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies temperature rise per watt, critical for thermal design margin |
| ESD Rating | >16 kV per Human Body Model - supports robustness in handling and board-level ESD events |
| Knee Impedance (ZZK) | 700 Ω at IZK = 0.25 mA - indicates regulation onset behavior near threshold current |
Pinout & Package
Package: Powermite® surface-mount package (DO-216 compatible), molded plastic body with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be thermally anchored to PCB copper |
| Lead 2 | Anode | Standard anode connection; mounted opposite TAB 1 on package outline |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables high-density PCB layout while delivering 3.0 W power handling comparable to larger through-hole Zeners |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and solder joint integrity |
| Integral heat-sink locking tab | Provides direct thermal path from junction to PCB and mechanical retention for automated insertion |
| EIA-481 tape-and-reel packaging | Supports high-speed pick-and-place assembly with standard 7-inch reels (3,000 pcs) or 13-inch reels (12,000 pcs) |
Applications
| Industrial Power Supply Regulation | Automotive Body Control Module Clamping |
|---|---|
Use Scenario: Stabilizing 24 V rail references in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator and overvoltage protector for analog sensor interface circuitry. Use Value: Maintains 27 V reference within ±5% tolerance despite input ripple and load transients, leveraging 23 Ω ZZT for tight regulation. | Use Scenario: Suppressing load-dump transients on 12 V battery-fed microcontroller power domains. IC Role / Device Role / Timing Role: Transient voltage clamp limiting bus voltage to ≤27 V during ISO 7637-2 pulse 5a events. Use Value: Absorbs 3.0 W peak energy without degradation, enabled by 30°C/W thermal resistance and metallic tab conduction. |
| Telecom Line Card Protection | Medical Diagnostic Equipment Reference |
Use Scenario: Protecting Ethernet PHY interface power pins from ESD and surge events per IEC 61000-4-2/4-5. IC Role / Device Role / Timing Role: Primary ESD clamp with >16 kV HBM rating placed adjacent to connector entry points. Use Value: Prevents latch-up in sensitive PHY ICs by clamping fast transients before they propagate, aided by low ZZK (700 Ω). | Use Scenario: Providing stable 27 V bias for photodiode amplifier stages in portable ultrasound front-ends. IC Role / Device Role / Timing Role: Precision voltage reference source with low reverse leakage (≤1 µA) minimizing offset drift. Use Value: Ensures <0.1% gain error contribution over temperature, supported by tight ±5% VZ tolerance and stable ZZT. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5354B | Same 27 V nominal Zener voltage, but DO-204AL (DO-41) through-hole package; 5 W rating; higher ZZT (35 Ω) | Requires through-hole assembly and larger board area; better suited for high-power bench supplies than space-constrained SMT designs | Select 1N5354B only when higher power headroom and through-hole mounting are acceptable |
| BZX84-C27 | SOT-23 package; 27 V ±5%; lower power (300 mW); ZZT = 80 Ω at 5 mA; no metallic heat-sink tab | Limited to low-current bias/reference use; unsuitable for clamping >100 mA transients due to thermal limits | Choose BZX84-C27 for ultra-compact, low-power reference needs where thermal performance is secondary |
Compared with 1N5354B and BZX84-C27, the 1PMT5935B/TR13 uniquely delivers 3.0 W SMT power handling with integrated thermal management via its metallic tab-enabling robust clamping in automotive and industrial environments where both space and thermal reliability are critical.
Availability
1PMT5935B/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive body control module clamping, telecom line card protection, and medical diagnostic equipment reference requiring stable component supply and traceable sourcing.
Supply support for 1PMT5935B/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 semiconductor company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, industrial, and communications markets.
The Powermite® Zener diode product line was designed to deliver high-power surface-mount voltage regulation and transient suppression in compact, thermally efficient packages for harsh-environment electronics.
FAQ
What is the Zener voltage tolerance for 1PMT5935B/TR13?
The 1PMT5935B/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 respectively, but the base 1PMT5935B/TR13 uses the ±5% grade. This tolerance directly impacts regulation accuracy in precision reference applications.
How is thermal management handled in the 1PMT5935B/TR13 package?
The 1PMT5935B/TR13 uses a Powermite® package with a full metallic bottom and integral locking tab that serves as the primary thermal path. Its junction-to-TAB 1 thermal resistance is 30°C/W, meaning proper PCB copper land design under TAB 1 is essential to maintain safe operating temperature at 3.0 W dissipation. This design eliminates flux entrapment and enhances heat transfer versus standard plastic SMT packages.
What is the maximum reverse leakage current for 1PMT5935B/TR13?
The 1PMT5935B/TR13 specifies a maximum reverse leakage current (IR) of 1 µA at a reverse voltage (VR) of 20.6 V and TL = 30°C. This low leakage ensures minimal power loss in high-impedance reference circuits and supports stable operation in battery-powered or low-quiescent-current systems where standby current matters.
Is 1PMT5935B/TR13 compatible with automated SMT assembly processes?
Yes, the 1PMT5935B/TR13 is fully compatible with automated SMT assembly. It is supplied in EIA-481-compliant tape-and-reel format (7-inch reel: 3,000 pcs; 13-inch reel: 12,000 pcs) and features a surface-mount Powermite® package optimized for pick-and-place equipment. The locking tab and symmetric lead geometry ensure reliable placement and solder joint formation during reflow.
What ESD protection level does 1PMT5935B/TR13 provide?
The 1PMT5935B/TR13 provides an ESD rating exceeding 16 kV per the Human Body Model (HBM), as verified per ANSI/ESDA/JEDEC JS-001. This high level of intrinsic ESD robustness reduces the need for external protection components in I/O and power rail applications, simplifying design and improving field reliability-especially in handheld or connector-exposed systems.
1PMT5935B/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:
- ±5%
- 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
1PMT5935B/TR13 FAQ
1.How can I place an order for 1PMT5935B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5935B/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 1PMT5935B/TR13 reliable?
The price and inventory of 1PMT5935B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5935B/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5935B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5935B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5935B/TR13?
1PMT5935B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5935B/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 1PMT5935B/TR13?
For technical support, including 1PMT5935B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5935B/TR13 requirements.
6.How does Aetrix verify that 1PMT5935B/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5935B/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 1PMT5935B/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5935B/TR13?
All 1PMT5935B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5935B/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 1PMT5935B/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5935B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5935B/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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