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PUMH20,115
Electronics Part Number
PUMH20,115-WXManufacturer
STMicroelectronics
PUMH20,115
Description
50V Prebias Dual NPN Transistor 6-TSSOPInventory
442 Pcs New Original In Stock
6-TSSOP pre-biased dual NPN; 50V, 100mA, 300mW; stable saturation; for low-side switch drivers and peripheral drivers.
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Basic cost: USD 70.00
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Technical Specifications
Category
Memory, Batteries
Manufacturer
STMicroelectronics
Packaging
Tube
Operating Temperature
-40°C ~ 85°C
Mounting Type
Snap-In
Package / Case
Snaphat®
Series
Snaphat®
Base Product Number
M4Z32
Product Status
Active
Function
Back-Up Management
Supplier Device Package
Snaphat®
Battery Chemistry
Lithium
Shipping Info
Due to restrictions, only ground shipment is allowed.
Data Sheet Document (D)
Datasheets
Download M4Z32-BR00SH1 Product Specification (PDF)
HTML Datasheet
M4Z32-BR00SH1-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8504.40.9580
Additional Information
Other Names
497-3690-5 497-3690-5-NDR M4Z32BR00SH1
Standard Package
23
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Frequently Asked Questions (FAQ)
Can the M4Z32-BR00SH1 Snaphat® battery backup module be safely used in a 24/7 industrial control sys
The M4Z32-BR00SH1 is rated for operation up to 85°C, but sustained operation near this limit—especially in a 24/7 industrial environment—can accelerate lithium battery self-discharge and reduce overall backup lifespan. While the IC itself remains functional, the integrated 120mAh lithium cell may experience capacity fade over time. For mission-critical systems, consider active thermal management or periodic backup health monitoring. STMicroelectronics recommends derating battery life expectations by ~30% when operating above 70°C to mitigate unexpected data loss during power failure events.
What are the key risks when replacing a legacy Dallas DS1230Y-100+ with the M4Z32-BR00SH1 in an exis
Replacing the DS1230Y-100+ with the M4Z32-BR00SH1 requires careful validation of voltage thresholds and switchover timing. The M4Z32-BR00SH1 uses a different internal comparator architecture and has a narrower valid VCC range during switchover. Ensure your SRAM’s minimum operating voltage aligns with the M4Z32’s backup activation threshold (~4.5V typical). Also, verify that the M4Z32’s 120mAh capacity meets your hold-up time requirements under your system’s sleep current—unlike the DS1230Y’s 200mAh cell. Perform a worst-case brownout test at -40°C and 85°C to confirm reliable transition to backup mode.
How does the M4Z32-BR00SH1 handle repeated short-duration power interruptions in a solar-powered IoT
The M4Z32-BR00SH1 is designed for infrequent, long-duration backups—not high-cycle scenarios. In solar-powered IoT applications with daily micro-outages, frequent charge/discharge cycles can stress the lithium cell, reducing its effective lifespan despite the low 120mAh capacity. Each cycle contributes to internal resistance growth. To mitigate risk, add a supercapacitor buffer on the VCC line to absorb short interruptions (<1 sec), reserving the M4Z32 for true extended outages. Monitor system sleep current closely; even 10µA draw halves backup time from ~12 days to ~6 days.
Is the M4Z32-BR00SH1 a drop-in replacement for the Renesas ISL1208-based backup circuits in terms of
No, the M4Z32-BR00SH1 is not a drop-in replacement for ISL1208-based designs. The ISL1208 is a real-time clock with integrated battery switchover, while the M4Z32-BR00SH1 is a pure backup power manager without clock functions. Mechanically, the Snaphat® package (28SOIC with snap-in battery) differs significantly from typical SOIC-8 or TSSOP packages used with ISL1208. Additionally, the M4Z32 lacks the ISL1208’s alarm and oscillator features. You’ll need to redesign the power path and remove any RTC dependencies unless supplemented externally.
Given the M4Z32-BR00SH1’s MSL 1 rating, can I skip baking or dry storage during high-volume PCB asse
Yes, you can skip baking and dry storage—the M4Z32-BR00SH1’s MSL 1 (Unlimited) rating means it’s immune to moisture-induced damage during reflow. However, improper handling (e.g., exposing the lithium cell to static discharge or mechanical stress during snap-in mounting) can compromise seal integrity or trigger internal shorts. Always use ESD-safe tools during installation. Long-term, physical deformation of the Snaphat® package may lead to electrolyte leakage or contact resistance issues. For high-reliability applications, implement a post-assembly continuity test on the backup path and avoid stacking heavy components above the module to prevent mechanical fatigue.
Can the M4Z32-BR00SH1 Snaphat® battery backup module be safely used in a 24/7 industrial control sys
The M4Z32-BR00SH1 is rated for operation up to 85°C, but sustained operation near this limit—especially in a 24/7 industrial environment—can accelerate lithium battery self-discharge and reduce overall backup lifespan. While the IC itself remains functional, the integrated 120mAh lithium cell may experience capacity fade over time. For mission-critical systems, consider active thermal management or periodic backup health monitoring. STMicroelectronics recommends derating battery life expectations by ~30% when operating above 70°C to mitigate unexpected data loss during power failure events.
What are the key risks when replacing a legacy Dallas DS1230Y-100+ with the M4Z32-BR00SH1 in an exis
Replacing the DS1230Y-100+ with the M4Z32-BR00SH1 requires careful validation of voltage thresholds and switchover timing. The M4Z32-BR00SH1 uses a different internal comparator architecture and has a narrower valid VCC range during switchover. Ensure your SRAM’s minimum operating voltage aligns with the M4Z32’s backup activation threshold (~4.5V typical). Also, verify that the M4Z32’s 120mAh capacity meets your hold-up time requirements under your system’s sleep current—unlike the DS1230Y’s 200mAh cell. Perform a worst-case brownout test at -40°C and 85°C to confirm reliable transition to backup mode.
How does the M4Z32-BR00SH1 handle repeated short-duration power interruptions in a solar-powered IoT
The M4Z32-BR00SH1 is designed for infrequent, long-duration backups—not high-cycle scenarios. In solar-powered IoT applications with daily micro-outages, frequent charge/discharge cycles can stress the lithium cell, reducing its effective lifespan despite the low 120mAh capacity. Each cycle contributes to internal resistance growth. To mitigate risk, add a supercapacitor buffer on the VCC line to absorb short interruptions (<1 sec), reserving the M4Z32 for true extended outages. Monitor system sleep current closely; even 10µA draw halves backup time from ~12 days to ~6 days.
Is the M4Z32-BR00SH1 a drop-in replacement for the Renesas ISL1208-based backup circuits in terms of
No, the M4Z32-BR00SH1 is not a drop-in replacement for ISL1208-based designs. The ISL1208 is a real-time clock with integrated battery switchover, while the M4Z32-BR00SH1 is a pure backup power manager without clock functions. Mechanically, the Snaphat® package (28SOIC with snap-in battery) differs significantly from typical SOIC-8 or TSSOP packages used with ISL1208. Additionally, the M4Z32 lacks the ISL1208’s alarm and oscillator features. You’ll need to redesign the power path and remove any RTC dependencies unless supplemented externally.
Given the M4Z32-BR00SH1’s MSL 1 rating, can I skip baking or dry storage during high-volume PCB asse
Yes, you can skip baking and dry storage—the M4Z32-BR00SH1’s MSL 1 (Unlimited) rating means it’s immune to moisture-induced damage during reflow. However, improper handling (e.g., exposing the lithium cell to static discharge or mechanical stress during snap-in mounting) can compromise seal integrity or trigger internal shorts. Always use ESD-safe tools during installation. Long-term, physical deformation of the Snaphat® package may lead to electrolyte leakage or contact resistance issues. For high-reliability applications, implement a post-assembly continuity test on the backup path and avoid stacking heavy components above the module to prevent mechanical fatigue.
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Sep 15 2026
