BAS 70 B5003 Equivalent & Substitute Parts Reference

Part Overview

The Infineon Technologies BAS 70 B5003 is an obsolete Schottky diode in the Diodes, Rectifiers category. It is designed for surface mount applications and is housed in a SOT-23 (TO-236-3, SC-59, SOT-23-3) package. The BAS 70 B5003 features a maximum reverse voltage of 70 V and a forward current rating of 70 mA. Due to its obsolete status, sourcing alternative or cross-reference models is necessary for new designs or ongoing production to ensure continuous supply and electrical compatibility.

Key Parameters

Parameter	Value
Category	Diodes, Rectifiers
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	70 V
Current - Average Rectified (Io)	70 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 15 mA
Reverse Recovery Time (trr)	100 ps
Current - Reverse Leakage @ Vr	100 nA @ 50 V
Capacitance @ Vr, F	2 pF @ 0V, 1MHz
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	PG-SOT23
Operating Temperature - Junction	-55°C ~ 125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitute and equivalent parts for the BAS 70 B5003 Schottky diode are determined strictly by matching critical electrical and mechanical parameters. The allowed parameters for direct substitution include:

Technology: Schottky
Maximum Reverse Voltage: 70 V
Average Rectified Current: 70 mA
Forward Voltage: 1 V @ 15 mA (unless otherwise specified)
Reverse Leakage Current: within manufacturer-provided limits at rated Vr
Capacitance: 2 pF @ test conditions
Surface Mount Package: must be TO-236-3, SC-59, SOT-23-3, or electrical equivalent
Junction Temperature Range: -55°C ~ 125°C or wider
Moisture Sensitivity Level (MSL): 1

Only substitute parts matching these parameters are included in the following comparison.

Parameter Comparison

Part Number	Manufacturer	Category	Technology	Vr (Max)	Io	Vf (Max) @ If	Reverse Recovery Time	Reverse Leakage @ Vr	Capacitance @ Vr, F	Mounting Type	Package / Case	Supplier Device Package	Operating Temperature - Junction	Moisture Sensitivity Level	REACH Status	ECCN	Inventory	Product Status
BAS 70 B5003	Infineon Technologies	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	100 ps	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	PG-SOT23	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	884	Obsolete
BAS70E6433HTMA1	Infineon Technologies	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	100 ps	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	PG-SOT23	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	30703	Active
BAS70E6327HTSA1	Infineon Technologies	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	100 ps	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	PG-SOT23	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	29638	Active
BAS70,215	Nexperia USA Inc.	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	-	10 µA @ 70 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	TO-236AB	150°C (Max)	1 (Unlimited)	REACH Unaffected	EAR99	10635	Active
BAS70,235	NXP USA Inc.	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	-	10 µA @ 70 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	150°C (Max)	-	REACH Unaffected	EAR99	269830	Active
BAS70LT1G	onsemi	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	-	10 µA @ 70 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3 (TO-236)	-55°C ~ 150°C	1 (Unlimited)	REACH Unaffected	EAR99	8267	Active
NSVBAS70LT1G	onsemi	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	-	10 µA @ 70 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3 (TO-236)	-55°C ~ 150°C	1 (Unlimited)	REACH Unaffected	EAR99	41100	Active
BAR18FILM	STMicroelectronics	Diodes, Rectifiers	Schottky	70 V	70 mA	410 mV @ 1 mA	-	200 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3	150°C (Max)	1 (Unlimited)	REACH Unaffected	EAR99	47703	Active
BAS70T-TP	Micro Commercial Co	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	SOT-523	SOT-523	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	21031	Active
BAS70W,115	Nexperia USA Inc.	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	-	10 µA @ 70 V	2 pF @ 0V, 1MHz	Surface Mount	SC-70, SOT-323	SOT-323	150°C (Max)	1 (Unlimited)	REACH Unaffected	EAR99	16051	Active
CMPD6263 BK PBFREE	Central Semiconductor Corp	Diodes, Rectifiers	Schottky	70 V	15 mA	410 mV @ 1 mA	-	200 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	-65°C ~ 150°C	1 (Unlimited)	REACH Unaffected	EAR99	779	Active
MA4E1340A1-287T	MACOM Tech Solutions	Diodes	Schottky	70 V	200 mA	-	-	-	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	-55°C ~ 125°C	3 (168 Hours)	REACH Unaffected	EAR99	3100	Active
BAS70 RFG	Taiwan Semiconductor Corp	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	673	Active
BAS70-7-F	Diodes Incorporated	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	125100	Active
BAS70-TP	Micro Commercial Co	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	5 ns	200 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	24150	Active
BAS70Q-7-F	Diodes Incorporated	Diodes, Rectifiers	Schottky	70 V	70 mA	1 V @ 15 mA	-	100 nA @ 50 V	2 pF @ 0V, 1MHz	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3	-55°C ~ 125°C	1 (Unlimited)	REACH Unaffected	EAR99	1422	Active

Engineering Selection Recommendations

Consider only active substitute parts meeting or exceeding the original Schottky diode's compliance levels, specifically regarding RoHS/REACH status and Moisture Sensitivity Level (MSL). Parts listed as "Active" and designated as "REACH Unaffected" with MSL 1 (Unlimited) provide functionally and environmentally compliant alternatives for legacy BAS 70 B5003 applications. ECCN codes are consistent across the listed substitutes, ensuring export control alignment.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters to consider for substituting BAS 70 B5003?
A: Critical parameters include Schottky technology, maximum reverse voltage of 70 V, current rating of 70 mA, forward voltage (Vf), reverse leakage current at specified voltage, capacitance, mounting type, and package equivalence.

Q2: Can I use a substitute with a different package?
A: All substitutes listed utilize surface mount packages compatible with SOT-23 (TO-236-3, SC-59) or their direct mechanical equivalents, ensuring fit for typical surface mount layouts.

Q3: Are the listed substitutes environmentally and compliance-wise equivalent to the original?
A: Yes, substitutes are specified with RoHS3 compliance, REACH unaffected status, and equivalent or better Moisture Sensitivity Level, matching the original BAS 70 B5003.

Q4: Do any substitutes offer improved ratings over BAS 70 B5003?
A: Some substitutes offer extended maximum junction temperature or reduced forward voltage at test current. The parameter comparison table provides direct reference for these characteristics.

Q5: What if my design has constraints beyond these core parameters?
A: Selection must be based solely on provided electrical, mechanical, and compliance criteria as summarized in the comparison table.

Q6: How do I ensure drop-in compatibility?
A: Confirm that the chosen alternative matches in electrical ratings, package/case, and mounting configuration as detailed in the key parameters and parameter comparison sections.

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